Ganeti remote API

Documents Ganeti version 2.13

Contents

Introduction

Ganeti supports a remote API for enable external tools to easily retrieve information about a cluster’s state. The remote API daemon, ganeti-rapi, is automatically started on the master node. By default it runs on TCP port 5080, but this can be changed either in .../constants.py or via the command line parameter -p. SSL mode, which is used by default, can also be disabled by passing command line parameters.

Users and passwords

ganeti-rapi reads users and passwords from a file (usually /var/lib/ganeti/rapi/users) on startup. Changes to the file will be read automatically.

Lines starting with the hash sign (#) are treated as comments. Each line consists of two or three fields separated by whitespace. The first two fields are for username and password. The third field is optional and can be used to specify per-user options (separated by comma without spaces).

Passwords can either be written in clear text or as a hash. Clear text passwords may not start with an opening brace ({) or they must be prefixed with {cleartext}. To use the hashed form, get the MD5 hash of the string $username:Ganeti Remote API:$password (e.g. echo -n 'jack:Ganeti Remote API:abc123' | openssl md5) [1] and prefix it with {ha1}. Using the scheme prefix for all passwords is recommended. Scheme prefixes are case insensitive.

Options control a user’s access permissions. The section Access permissions lists the permissions required for each resource. If the --require-authentication command line option is given to the ganeti-rapi daemon, all requests require authentication. Available options:

write
Enables the user to execute operations modifying the cluster. Implies read access. Resources blocking other operations for read-only access, such as /2/nodes/[node_name]/storage or blocking server-side processes, such as /2/jobs/[job_id]/wait, use write to control access to their GET method.
read
Allow access to operations querying for information.

Example:

# Give Jack and Fred read-only access
jack abc123
fred {cleartext}foo555

# Give write access to an imaginary instance creation script
autocreator xyz789 write

# Hashed password for Jessica
jessica {HA1}7046452df2cbb530877058712cf17bd4 write

# Monitoring can query for values
monitoring {HA1}ec018ffe72b8e75bb4d508ed5b6d079c read

# A user who can read and write (the former is implied by granting
# write access)
superuser {HA1}ec018ffe72b8e75bb4d508ed5b6d079c read,write

When using the RAPI, username and password can be sent to the server by using the standard HTTP basic access authentication. This means that for accessing the protected URL https://cluster.example.com/resource, the address https://username:password@cluster.example.com/resource should be used instead. Alternatively, the appropriate parameter of your HTTP client (such as -u for curl) can be used.

[1]Using the MD5 hash of username, realm and password is described in RFC 2617 (“HTTP Authentication”), sections 3.2.2.2 and 3.3. The reason for using it over another algorithm is forward compatibility. If ganeti-rapi were to implement HTTP Digest authentication in the future, the same hash could be used. In the current version ganeti-rapi‘s realm, Ganeti Remote API, can only be changed by modifying the source code.

Protocol

The protocol used is JSON over HTTP designed after the REST principle. HTTP Basic authentication as per RFC 2617 is supported.

HTTP requests with a body (e.g. PUT or POST) require the request header Content-type be set to application/json (see RFC 2616 (HTTP/1.1), section 7.2.1).

A note on JSON as used by RAPI

JSON as used by Ganeti RAPI does not conform to the specification in RFC 4627. Section 2 defines a JSON text to be either an object ({"key": "value", …}) or an array ([1, 2, 3, …]). In violation of this RAPI uses plain strings ("master-candidate", "1234") for some requests or responses. Changing this now would likely break existing clients and cause a lot of trouble.

Unlike Python’s JSON encoder and decoder, other programming languages or libraries may only provide a strict implementation, not allowing plain values. For those, responses can usually be wrapped in an array whose first element is then used, e.g. the response "1234" becomes ["1234"]. This works equally well for more complex values. Example in Ruby:

require "json"

# Insert code to get response here
response = "\"1234\""

decoded = JSON.parse("[#{response}]").first

Short of modifying the encoder to allow encoding to a less strict format, requests will have to be formatted by hand. Newer RAPI requests already use a dictionary as their input data and shouldn’t cause any problems.

PUT or POST?

According to RFC 2616 the main difference between PUT and POST is that POST can create new resources but PUT can only create the resource the URI was pointing to on the PUT request.

Unfortunately, due to historic reasons, the Ganeti RAPI library is not consistent with this usage, so just use the methods as documented below for each resource.

For more details have a look in the source code at lib/rapi/rlib2.py.

Generic parameter types

A few generic refered parameter types and the values they allow.

bool

A boolean option will accept 1 or 0 as numbers but not i.e. True or False.

Generic parameters

A few parameter mean the same thing across all resources which implement it.

bulk

Bulk-mode means that for the resources which usually return just a list of child resources (e.g. /2/instances which returns just instance names), the output will instead contain detailed data for all these subresources. This is more efficient than query-ing the sub-resources themselves.

dry-run

The boolean dry-run argument, if provided and set, signals to Ganeti that the job should not be executed, only the pre-execution checks will be done.

This is useful in trying to determine (without guarantees though, as in the meantime the cluster state could have changed) if the operation is likely to succeed or at least start executing.

force

Force operation to continue even if it will cause the cluster to become inconsistent (e.g. because there are not enough master candidates).

Parameter details

Some parameters are not straight forward, so we describe them in details here.

ipolicy

The instance policy specification is a dict with the following fields:

minmax

A list of dictionaries, each with the following two fields:

min, max

A sub- dict with the following fields, which sets the limit of the instances:

memory-size
The size in MiB of the memory used
disk-size
The size in MiB of the disk used
disk-count
The numbers of disks used
cpu-count
The numbers of cpus used
nic-count
The numbers of nics used
spindle-use
The numbers of virtual disk spindles used by this instance. They are not real in the sense of actual HDD spindles, but useful for accounting the spindle usage on the residing node
std
A sub- dict with the same fields as min and max above, which sets the standard values of the instances.
disk-templates
A list of disk templates allowed for instances using this policy
vcpu-ratio
Maximum ratio of virtual to physical CPUs (float)
spindle-ratio
Maximum ratio of instances to their node’s spindle_count (float)

Usage examples

You can access the API using your favorite programming language as long as it supports network connections.

Ganeti RAPI client

Ganeti includes a standalone RAPI client, lib/rapi/client.py.

Shell

Using wget:

$ wget -q -O - https://CLUSTERNAME:5080/2/info

or curl:

$ curl https://CLUSTERNAME:5080/2/info

Note: with curl, the request method (GET, POST, PUT) can be specified using the -X command line option, and the username/password can be specified with the -u option. In case of POST requests with a body, the Content-Type can be set to JSON (as per the Protocol section) using the parameter -H "Content-Type: application/json".

Python

import urllib2
f = urllib2.urlopen('https://CLUSTERNAME:5080/2/info')
print f.read()

JavaScript

Warning

While it’s possible to use JavaScript, it poses several potential problems, including browser blocking request due to non-standard ports or different domain names. Fetching the data on the webserver is easier.

var url = 'https://CLUSTERNAME:5080/2/info';
var info;
var xmlreq = new XMLHttpRequest();
xmlreq.onreadystatechange = function () {
  if (xmlreq.readyState != 4) return;
  if (xmlreq.status == 200) {
    info = eval("(" + xmlreq.responseText + ")");
    alert(info);
  } else {
    alert('Error fetching cluster info');
  }
  xmlreq = null;
};
xmlreq.open('GET', url, true);
xmlreq.send(null);

Resources

/

The root resource. Has no function, but for legacy reasons the GET method is supported.

/2

Has no function, but for legacy reasons the GET method is supported.

/2/info

Cluster information resource.

Method Required permissions
GET (none)

GET

Returns cluster information.

Example:

{
  "config_version": 2000000,
  "name": "cluster",
  "software_version": "2.0.0~beta2",
  "os_api_version": 10,
  "export_version": 0,
  "candidate_pool_size": 10,
  "enabled_hypervisors": [
    "fake"
  ],
  "hvparams": {
    "fake": {}
   },
  "default_hypervisor": "fake",
  "master": "node1.example.com",
  "architecture": [
    "64bit",
    "x86_64"
  ],
  "protocol_version": 20,
  "beparams": {
    "default": {
      "auto_balance": true,
      "vcpus": 1,
      "memory": 128
     }
    },
  …
}

/2/redistribute-config

Redistribute configuration to all nodes.

Method Required permissions
PUT write

PUT

Redistribute configuration to all nodes. The result will be a job id.

Job result:

None

/2/features

Method Required permissions
GET (none)

GET

Returns a list of features supported by the RAPI server. Available features:

instance-create-reqv1
Instance creation request data version 1 supported
instance-reinstall-reqv1
Instance reinstall supports body parameters
node-migrate-reqv1
Whether migrating a node (/2/nodes/[node_name]/migrate) supports request body parameters
node-evac-res1
Whether evacuating a node (/2/nodes/[node_name]/evacuate) returns a new-style result (see resource description)

/2/filters

The filters resource.

Method Required permissions
GET (none)
POST write

GET

Returns a list of all existing filters.

Example:

[
  {
    "id": "8b53f7de-f8e2-4470-99bd-1efe746e434f",
    "uri": "/2/filters/8b53f7de-f8e2-4470-99bd-1efe746e434f"
  },
  {
    "id": "b296f0c9-4809-46a8-b928-5ccf7720fa8c",
    "uri": "/2/filters/b296f0c9-4809-46a8-b928-5ccf7720fa8c"
  }
]

If the optional bool bulk argument is provided and set to a true value (i.e ?bulk=1), the output contains detailed information about filters as a list.

Returned fields: action, predicates, priority, reason_trail, uuid, watermark.

Example:

[
  {
    "uuid": "8b53f7de-f8e2-4470-99bd-1efe746e434f",
    "watermark": 12534,
    "reason_trail": [
      ["luxid", "someFilterReason", 1409249801259897000]
    ],
    "priority": 0,
    "action": "REJECT",
    "predicates": [
      ["jobid", [">", "id", "watermark"]]
    ]
  },
  {
    "uuid": "b296f0c9-4809-46a8-b928-5ccf7720fa8c",
    "watermark": 12534,
    "reason_trail": [
      ["luxid", "someFilterReason", 1409249917268978000]
    ],
    "priority": 1,
    "action": "REJECT",
    "predicates": [
      ["opcode", ["=", "OP_ID", "OP_INSTANCE_CREATE"]]
    ]
  }
]

POST

Creates a filter.

Body parameters:

priority (int, defaults to 0)
Must be non-negative. Lower numbers mean higher filter priority.
predicates (list, defaults to [])
The first element is the name (str) of the predicate and the rest are parameters suitable for that predicate. Most predicates take a single parameter: A boolean expression in the Ganeti query language.
action (defaults to "CONTINUE")
The effect of the filter. Can be one of "ACCEPT", "PAUSE", "REJECT", "CONTINUE" and ["RATE_LIMIT", n], where n is a positive integer.
reason (list, defaults to [])
An initial reason trail for this filter. Each element in this list is a list with 3 elements: [source, reason, timestamp], where source and reason are strings and timestamp is a time since the UNIX epoch in nanoseconds as an integer.

Returns:

A filter UUID (str) that can be used for accessing the filter later.

/2/filters/[filter_uuid]

Returns information about a filter.

Method Required permissions
DELETE write
GET (none)
PUT write

GET

Returns information about a filter, similar to the bulk output from the filter list.

Returned fields: action, predicates, priority, reason_trail, uuid, watermark.

PUT

Replaces a filter with given UUID, or creates it with the given UUID if it doesn’t already exist.

Body parameters:

All parameters for adding a new filter via POST, plus the following:

uuid: (string)
The UUID of the filter to replace or create.

Returns:

The filter UUID (str) of the replaced or created filter. This will be the uuid body parameter if given, and a freshly generated UUID otherwise.

DELETE

Deletes a filter.

Returns:

None

/2/modify

Modifies cluster parameters.

Method Required permissions
PUT write

PUT

Returns a job ID.

Body parameters:

add_uids (defaults to None, must be None or (List of (Tuple of ((<Integer <function TInt at 0x337e578>>, <Integer <function TInt at 0x337e578>>)))))

Extend UID pool, must be list of lists describing UID ranges (two items, start and end inclusive)

beparams (defaults to None, must be None or (Dictionary with keys of Anything and values of Anything))

Cluster-wide backend parameter defaults

blacklisted_os (defaults to None, must be None or (List of (Tuple of ((<OneOf add, remove <function fn at 0x3380230>>, <NonEmptyString <String and EvalToTrue <function fn at 0x337ec80>>>)))))

Modify list of blacklisted operating systems: each modification must have two items, the operation and the OS name; the operation can be add or remove

candidate_pool_size (defaults to None, must be None or GreaterThanZero)

Master candidate pool size

compression_tools (defaults to None, must be None or (List of NonEmptyString))

List of enabled compression tools

data_collector_interval (defaults to None, must be None or (Dictionary with keys of String and values of Integer))

Sets the interval in that data collectors are run

default_iallocator (defaults to None, must be None or String)

Default iallocator for cluster

default_iallocator_params (defaults to None, must be None or (Dictionary with keys of Anything and values of Anything))

Default iallocator parameters for cluster

depends (defaults to None, must be None or (List of (((List of Anything) or Tuple) and (Length 2) and (Item 0 is (JobId or RelativeJobId), item 1 is (List of (OneOf canceled, success, error))))))

Job dependencies; if used through SubmitManyJobs relative (negative) job IDs can be used; see design document for details

disk_state (defaults to None, must be None or (Dictionary with keys of Anything and values of Anything))

Set disk states

diskparams (defaults to None, must be None or (Dictionary with keys of (OneOf sharedfile, diskless, plain, gluster, blockdev, drbd, ext, file, rbd) and values of (Dictionary with keys of Anything and values of Anything)))

Disk templates’ parameter defaults

drbd_helper (defaults to None, must be None or String)

DRBD helper program

enabled_data_collectors (defaults to None, must be None or (Dictionary with keys of String and values of Boolean))

Set the active data collectors

enabled_disk_templates (defaults to None, must be None or (List of (OneOf sharedfile, diskless, plain, gluster, blockdev, drbd, ext, file, rbd)))

List of enabled disk templates

enabled_hypervisors (defaults to None, must be None or (List of (OneOf chroot, xen-pvm, kvm, xen-hvm, lxc, fake)))

List of enabled hypervisors

enabled_user_shutdown (defaults to None, must be None or Boolean)

Whether user shutdown is enabled cluster wide

file_storage_dir (defaults to None, must be None or String)

force (defaults to False, must be Boolean)

Whether to force the operation

gluster_storage_dir (defaults to None, must be None or String)

hidden_os (defaults to None, must be None or (List of (Tuple of ((<OneOf add, remove <function fn at 0x3380230>>, <NonEmptyString <String and EvalToTrue <function fn at 0x337ec80>>>)))))

Modify list of hidden operating systems: each modification must have two items, the operation and the OS name; the operation can be add or remove

hv_state (defaults to None, must be None or (Dictionary with keys of Anything and values of Anything))

Set hypervisor states

hvparams (defaults to None, must be None or (Dictionary with keys of String and values of (Dictionary with keys of Anything and values of Anything)))

Cluster-wide hypervisor parameters, hypervisor-dependent

install_image (defaults to None, must be None or String)

OS image for running OS scripts in a safe environment

instance_communication_network (defaults to None, must be None or String)

ipolicy (defaults to None, must be None or (Dictionary with keys of Anything and values of Anything))

Cluster-wide ipolicy specs

mac_prefix (defaults to None, must be None or NonEmptyString)

Network specific mac prefix (that overrides the cluster one)

maintain_node_health (defaults to None, must be None or Boolean)

Whether to automatically maintain node health

master_netdev (defaults to None, must be None or String)

Master network device

master_netmask (defaults to None, must be None or EqualOrGreaterThanZero)

Netmask of the master IP

max_running_jobs (defaults to None, must be None or GreaterThanZero)

Maximal number of jobs to run simultaneously

max_tracked_jobs (defaults to None, must be None or GreaterThanZero)

Maximal number of jobs tracked in the job queue

modify_etc_hosts (defaults to None, must be None or Boolean)

ndparams (defaults to None, must be None or (Dictionary with keys of Anything and values of Anything))

Cluster-wide node parameter defaults

nicparams (defaults to None, must be None or (Dictionary with keys of (OneOf bridge, name, ip, vlan, mac, link, mode, network) and values of (None or String) [NIC parameters]))

Cluster-wide NIC parameter defaults

os_hvp (defaults to None, must be None or (Dictionary with keys of String and values of (Dictionary with keys of Anything and values of Anything)))

Cluster-wide per-OS hypervisor parameter defaults

osparams (defaults to None, must be None or (Dictionary with keys of String and values of (Dictionary with keys of Anything and values of Anything)))

Cluster-wide OS parameter defaults

osparams_private_cluster (defaults to None, must be None or (Dictionary with keys of String and values of (Dictionary with keys of Anything and values of (Private Anything))))

Cluster-wide private OS parameter defaults

prealloc_wipe_disks (defaults to None, must be None or Boolean)

Whether to wipe disks before allocating them to instances

remove_uids (defaults to None, must be None or (List of (Tuple of ((<Integer <function TInt at 0x337e578>>, <Integer <function TInt at 0x337e578>>)))))

Shrink UID pool, must be list of lists describing UID ranges (two items, start and end inclusive) to be removed

reserved_lvs (defaults to None, must be None or (List of NonEmptyString))

List of reserved LVs

shared_file_storage_dir (defaults to None, must be None or String)

uid_pool (defaults to None, must be None or (List of (Tuple of ((<Integer <function TInt at 0x337e578>>, <Integer <function TInt at 0x337e578>>)))))

Set UID pool, must be list of lists describing UID ranges (two items, start and end inclusive)

use_external_mip_script (defaults to None, must be None or Boolean)

Whether to use an external master IP address setup script

vg_name (defaults to None, must be None or String)

Volume group name

zeroing_image (defaults to None, must be None or String)

Job result:

None or (Dictionary containing none but the required key "jobs" (value List of ((Length 2) and (Item 0 is (Boolean [success]), item 1 is (String or JobId [Job ID if successful, error message otherwise]))) [List of submitted jobs]))

/2/groups

The groups resource.

Method Required permissions
GET (none)
POST write

GET

Returns a list of all existing node groups.

Example:

[
  {
    "name": "group1",
    "uri": "\/2\/groups\/group1"
  },
  {
    "name": "group2",
    "uri": "\/2\/groups\/group2"
  }
]

If the optional bool bulk argument is provided and set to a true value (i.e ?bulk=1), the output contains detailed information about node groups as a list.

Returned fields: alloc_policy, ctime, custom_diskparams, custom_ipolicy, custom_ndparams, diskparams, ipolicy, mtime, name, ndparams, node_cnt, node_list, serial_no, tags, uuid.

Example:

[
  {
    "name": "group1",
    "node_cnt": 2,
    "node_list": [
      "node1.example.com",
      "node2.example.com"
    ],
    "uuid": "0d7d407c-262e-49af-881a-6a430034bf43",
    …
  },
  {
    "name": "group2",
    "node_cnt": 1,
    "node_list": [
      "node3.example.com"
    ],
    "uuid": "f5a277e7-68f9-44d3-a378-4b25ecb5df5c",
    …
  },
  …
]

POST

Creates a node group.

If the optional bool dry-run argument is provided, the job will not be actually executed, only the pre-execution checks will be done.

Returns: a job ID that can be used later for polling.

Body parameters:

alloc_policy (defaults to None, must be None or (OneOf preferred, last_resort, unallocable))

Instance allocation policy

depends (defaults to None, must be None or (List of (((List of Anything) or Tuple) and (Length 2) and (Item 0 is (JobId or RelativeJobId), item 1 is (List of (OneOf canceled, success, error))))))

Job dependencies; if used through SubmitManyJobs relative (negative) job IDs can be used; see design document for details

disk_state (defaults to None, must be None or (Dictionary with keys of Anything and values of Anything))

Set disk states

diskparams (defaults to None, must be None or (Dictionary with keys of (OneOf sharedfile, diskless, plain, gluster, blockdev, drbd, ext, file, rbd) and values of (Dictionary with keys of Anything and values of Anything)))

Disk templates’ parameter defaults

group_name (defaults to None, must be NonEmptyString)

Group name

hv_state (defaults to None, must be None or (Dictionary with keys of Anything and values of Anything))

Set hypervisor states

ipolicy (defaults to None, must be None or (Dictionary with keys of Anything and values of Anything))

Group-wide ipolicy specs

ndparams (defaults to None, must be None or (Dictionary with keys of Anything and values of Anything))

Default node parameters for group

Earlier versions used a parameter named name which, while still supported, has been renamed to group_name.

Job result:

None or (Dictionary containing none but the required key "jobs" (value List of ((Length 2) and (Item 0 is (Boolean [success]), item 1 is (String or JobId [Job ID if successful, error message otherwise]))) [List of submitted jobs]))

/2/groups/[group_name]

Returns information about a node group.

Method Required permissions
DELETE write
GET (none)

GET

Returns information about a node group, similar to the bulk output from the node group list.

Returned fields: alloc_policy, ctime, custom_diskparams, custom_ipolicy, custom_ndparams, diskparams, ipolicy, mtime, name, ndparams, node_cnt, node_list, serial_no, tags, uuid.

DELETE

Deletes a node group.

It supports the dry-run argument.

Job result:

None

/2/groups/[group_name]/modify

Modifies the parameters of a node group.

Method Required permissions
PUT write

PUT

Returns a job ID.

Body parameters:

alloc_policy (defaults to None, must be None or (OneOf preferred, last_resort, unallocable))

Instance allocation policy

depends (defaults to None, must be None or (List of (((List of Anything) or Tuple) and (Length 2) and (Item 0 is (JobId or RelativeJobId), item 1 is (List of (OneOf canceled, success, error))))))

Job dependencies; if used through SubmitManyJobs relative (negative) job IDs can be used; see design document for details

disk_state (defaults to None, must be None or (Dictionary with keys of Anything and values of Anything))

Set disk states

diskparams (defaults to None, must be None or (Dictionary with keys of (OneOf sharedfile, diskless, plain, gluster, blockdev, drbd, ext, file, rbd) and values of (Dictionary with keys of Anything and values of Anything)))

Disk templates’ parameter defaults

hv_state (defaults to None, must be None or (Dictionary with keys of Anything and values of Anything))

Set hypervisor states

ipolicy (defaults to None, must be None or (Dictionary with keys of Anything and values of Anything))

Group-wide ipolicy specs

ndparams (defaults to None, must be None or (Dictionary with keys of Anything and values of Anything))

Default node parameters for group

Job result:

List of (Tuple of ((<NonEmptyString <String and EvalToTrue <function fn at 0x337ec80>>>, <Anything <function TAny at 0x337e320>>)))

/2/groups/[group_name]/rename

Renames a node group.

Method Required permissions
PUT write

PUT

Returns a job ID.

Body parameters:

depends (defaults to None, must be None or (List of (((List of Anything) or Tuple) and (Length 2) and (Item 0 is (JobId or RelativeJobId), item 1 is (List of (OneOf canceled, success, error))))))

Job dependencies; if used through SubmitManyJobs relative (negative) job IDs can be used; see design document for details

new_name (defaults to None, must be NonEmptyString)

New group name

Job result:

NonEmptyString

/2/groups/[group_name]/assign-nodes

Assigns nodes to a group.

Method Required permissions
PUT write

PUT

Returns a job ID. It supports the dry-run and force arguments.

Body parameters:

depends (defaults to None, must be None or (List of (((List of Anything) or Tuple) and (Length 2) and (Item 0 is (JobId or RelativeJobId), item 1 is (List of (OneOf canceled, success, error))))))

Job dependencies; if used through SubmitManyJobs relative (negative) job IDs can be used; see design document for details

node_uuids (defaults to None, must be None or (List of NonEmptyString))

List of node UUIDs to assign

nodes (defaults to None, must be List of NonEmptyString)

List of nodes to assign

Job result:

None

/2/groups/[group_name]/tags

Manages per-nodegroup tags.

Method Required permissions
DELETE write
GET (none)
PUT write

GET

Returns a list of tags.

Example:

["tag1", "tag2", "tag3"]

PUT

Add a set of tags.

The request as a list of strings should be PUT to this URI. The result will be a job id.

It supports the dry-run argument.

DELETE

Delete a tag.

In order to delete a set of tags, the DELETE request should be addressed to URI like:

/tags?tag=[tag]&tag=[tag]

It supports the dry-run argument.

/2/networks

The networks resource.

Method Required permissions
GET (none)
POST write

GET

Returns a list of all existing networks.

Example:

[
  {
    "name": "network1",
    "uri": "\/2\/networks\/network1"
  },
  {
    "name": "network2",
    "uri": "\/2\/networks\/network2"
  }
]

If the optional bool bulk argument is provided and set to a true value (i.e ?bulk=1), the output contains detailed information about networks as a list.

Returned fields: ctime, external_reservations, free_count, gateway, gateway6, group_list, inst_list, mac_prefix, map, mtime, name, network, network6, reserved_count, serial_no, tags, uuid.

Example:

[
  {
    'external_reservations': '10.0.0.0, 10.0.0.1, 10.0.0.15',
    'free_count': 13,
    'gateway': '10.0.0.1',
    'gateway6': None,
    'group_list': ['default(bridged, prv0)'],
    'inst_list': [],
    'mac_prefix': None,
    'map': 'XX.............X',
    'name': 'nat',
    'network': '10.0.0.0/28',
    'network6': None,
    'reserved_count': 3,
    'tags': ['nfdhcpd'],
    …
  },
  …
]

POST

Creates a network.

If the optional bool dry-run argument is provided, the job will not be actually executed, only the pre-execution checks will be done.

Returns: a job ID that can be used later for polling.

Body parameters:

add_reserved_ips (defaults to None, must be None or (List of (String and (IPv4 address))))

Which IP addresses to reserve

conflicts_check (defaults to True, must be Boolean)

Whether to check for conflicting IP addresses

depends (defaults to None, must be None or (List of (((List of Anything) or Tuple) and (Length 2) and (Item 0 is (JobId or RelativeJobId), item 1 is (List of (OneOf canceled, success, error))))))

Job dependencies; if used through SubmitManyJobs relative (negative) job IDs can be used; see design document for details

gateway (defaults to None, must be None or (String and (IPv4 address)))

Network gateway (IPv4 address)

gateway6 (defaults to None, must be None or (String and (IPv6 address)))

Network gateway (IPv6 address)

mac_prefix (defaults to None, must be None or NonEmptyString)

Network specific mac prefix (that overrides the cluster one)

network (defaults to None, must be String and (IPv4 network))

Network address (IPv4 subnet)

network6 (defaults to None, must be None or (String and (IPv6 network)))

Network address (IPv6 subnet)

network_name (defaults to None, must be NonEmptyString)

Network name

tags (defaults to [], must be List of NonEmptyString)

Network tags

Job result:

None

/2/networks/[network_name]

Returns information about a network.

Method Required permissions
DELETE write
GET (none)

GET

Returns information about a network, similar to the bulk output from the network list.

Returned fields: ctime, external_reservations, free_count, gateway, gateway6, group_list, inst_list, mac_prefix, map, mtime, name, network, network6, reserved_count, serial_no, tags, uuid.

DELETE

Deletes a network.

It supports the dry-run argument.

Job result:

None

/2/networks/[network_name]/modify

Modifies the parameters of a network.

Method Required permissions
PUT write

PUT

Returns a job ID.

Body parameters:

add_reserved_ips (defaults to None, must be None or (List of (String and (IPv4 address))))

Which external IP addresses to reserve

depends (defaults to None, must be None or (List of (((List of Anything) or Tuple) and (Length 2) and (Item 0 is (JobId or RelativeJobId), item 1 is (List of (OneOf canceled, success, error))))))

Job dependencies; if used through SubmitManyJobs relative (negative) job IDs can be used; see design document for details

gateway (defaults to None, must be None or (String and (IPv4 address)))

Network gateway (IPv4 address)

gateway6 (defaults to None, must be None or (String and (IPv6 address)))

Network gateway (IPv6 address)

mac_prefix (defaults to None, must be None or NonEmptyString)

Network specific mac prefix (that overrides the cluster one)

network6 (defaults to None, must be None or (String and (IPv6 network)))

Network address (IPv6 subnet)

network_name (defaults to None, must be NonEmptyString)

Network name

remove_reserved_ips (defaults to None, must be None or (List of (String and (IPv4 address))))

Which external IP addresses to release

Job result:

None

/2/networks/[network_name]/connect

Connects a network to a nodegroup.

Method Required permissions
PUT write

PUT

Returns a job ID. It supports the dry-run arguments.

Body parameters:

conflicts_check (defaults to True, must be Boolean)

Whether to check for conflicting IP addresses

depends (defaults to None, must be None or (List of (((List of Anything) or Tuple) and (Length 2) and (Item 0 is (JobId or RelativeJobId), item 1 is (List of (OneOf canceled, success, error))))))

Job dependencies; if used through SubmitManyJobs relative (negative) job IDs can be used; see design document for details

group_name (defaults to None, must be NonEmptyString)

Group name

network_link (defaults to None, must be NonEmptyString)

Network link when connecting to a group

network_mode (defaults to None, must be OneOf pool, openvswitch, bridged, routed)

Network mode when connecting to a group

network_name (defaults to None, must be NonEmptyString)

Network name

network_vlan (defaults to the empty string, must be String)

Network vlan when connecting to a group

Job result:

None

/2/networks/[network_name]/disconnect

Disonnects a network from a nodegroup.

Method Required permissions
PUT write

PUT

Returns a job ID. It supports the dry-run arguments.

Body parameters:

depends (defaults to None, must be None or (List of (((List of Anything) or Tuple) and (Length 2) and (Item 0 is (JobId or RelativeJobId), item 1 is (List of (OneOf canceled, success, error))))))

Job dependencies; if used through SubmitManyJobs relative (negative) job IDs can be used; see design document for details

group_name (defaults to None, must be NonEmptyString)

Group name

network_name (defaults to None, must be NonEmptyString)

Network name

Job result:

None

/2/networks/[network_name]/tags

Manages per-network tags.

Method Required permissions
DELETE write
GET (none)
PUT write

GET

Returns a list of tags.

Example:

["tag1", "tag2", "tag3"]

PUT

Add a set of tags.

The request as a list of strings should be PUT to this URI. The result will be a job id.

It supports the dry-run argument.

DELETE

Delete a tag.

In order to delete a set of tags, the DELETE request should be addressed to URI like:

/tags?tag=[tag]&tag=[tag]

It supports the dry-run argument.

/2/instances-multi-alloc

Tries to allocate multiple instances.

Method Required permissions
POST write

POST

The parameters:

depends (defaults to None, must be None or (List of (((List of Anything) or Tuple) and (Length 2) and (Item 0 is (JobId or RelativeJobId), item 1 is (List of (OneOf canceled, success, error))))))

Job dependencies; if used through SubmitManyJobs relative (negative) job IDs can be used; see design document for details

iallocator (defaults to None, must be None or NonEmptyString)

Iallocator for deciding the target node for shared-storage instances

instances (defaults to [], must be List of Anything)

List of instance create opcodes describing the instances to allocate

opportunistic_locking (defaults to False, must be Boolean)

Whether to employ opportunistic locking for nodes, meaning nodes already locked by another opcode won’t be considered for instance allocation (only when an iallocator is used)

Job result:

Dictionary containing none but the required keys "failed" (value List of NonEmptyString), "allocatable" (value List of NonEmptyString), "jobs" (value List of ((Length 2) and (Item 0 is (Boolean [success]), item 1 is (String or JobId [Job ID if successful, error message otherwise]))) [List of submitted jobs])

/2/instances

The instances resource.

Method Required permissions
GET (none)
POST write

GET

Returns a list of all available instances.

Example:

[
  {
    "name": "web.example.com",
    "uri": "\/instances\/web.example.com"
  },
  {
    "name": "mail.example.com",
    "uri": "\/instances\/mail.example.com"
  }
]

If the optional bool bulk argument is provided and set to a true value (i.e ?bulk=1), the output contains detailed information about instances as a list.

Returned fields: admin_state, beparams, ctime, custom_beparams, custom_hvparams, custom_nicparams, disk.names, disk.sizes, disk.spindles, disk.uuids, disk_template, disk_usage, hvparams, mtime, name, network_port, nic.bridges, nic.ips, nic.links, nic.macs, nic.modes, nic.names, nic.networks, nic.networks.names, nic.uuids, oper_ram, oper_state, oper_vcpus, os, pnode, serial_no, snodes, status, tags, uuid.

Example:

[
  {
    "status": "running",
    "disk_usage": 20480,
    "nic.bridges": [
      "xen-br0"
    ],
    "name": "web.example.com",
    "tags": ["tag1", "tag2"],
    "beparams": {
      "vcpus": 2,
      "memory": 512
    },
    "disk.sizes": [
      20480
    ],
    "pnode": "node1.example.com",
    "nic.macs": ["01:23:45:67:89:01"],
    "snodes": ["node2.example.com"],
    "disk_template": "drbd",
    "admin_state": true,
    "os": "debian-etch",
    "oper_state": true,
    …
  },
  …
]

POST

Creates an instance.

If the optional bool dry-run argument is provided, the job will not be actually executed, only the pre-execution checks will be done. Query-ing the job result will return, in both dry-run and normal case, the list of nodes selected for the instance.

Returns: a job ID that can be used later for polling.

Body parameters:

__version__ (int, required)
Must be 1 (older Ganeti versions used a different format for instance creation requests, version 0, but that format is no longer supported)

beparams (defaults to {}, must be Dictionary with keys of Anything and values of Anything)

Backend parameters for instance

compress (defaults to none, must be String)

Compression mode to use for moves during backups/imports

conflicts_check (defaults to True, must be Boolean)

Whether to check for conflicting IP addresses

depends (defaults to None, must be None or (List of (((List of Anything) or Tuple) and (Length 2) and (Item 0 is (JobId or RelativeJobId), item 1 is (List of (OneOf canceled, success, error))))))

Job dependencies; if used through SubmitManyJobs relative (negative) job IDs can be used; see design document for details

disk_template (defaults to None, must be None or (OneOf sharedfile, diskless, plain, gluster, blockdev, drbd, ext, file, rbd))

Instance disk template

disks (defaults to None, must be List of (Dictionary with keys of NonEmptyString and values of (NonEmptyString or Integer) [Disk parameters]))

List of instance disks

file_driver (defaults to None, must be None or (OneOf blktap2, blktap, loop))

Driver for file-backed disks

file_storage_dir (defaults to None, must be None or NonEmptyString)

Directory for storing file-backed disks

force_variant (defaults to False, must be Boolean)

Whether to force an unknown OS variant

group_name (defaults to None, must be None or NonEmptyString)

Optional group name

helper_shutdown_timeout (defaults to None, must be None or Integer)

Shutdown timeout for the helper VM

helper_startup_timeout (defaults to None, must be None or Integer)

Startup timeout for the helper VM

hvparams (defaults to {}, must be Dictionary with keys of Anything and values of Anything)

Hypervisor parameters for instance, hypervisor-dependent

hypervisor (defaults to None, must be None or (OneOf chroot, xen-pvm, kvm, xen-hvm, lxc, fake))

Selected hypervisor for an instance

iallocator (defaults to None, must be None or NonEmptyString)

Iallocator for deciding the target node for shared-storage instances

identify_defaults (defaults to False, must be Boolean)

Reset instance parameters to default if equal

ignore_ipolicy (defaults to False, must be Boolean)

Whether to ignore ipolicy violations

instance_communication (defaults to False, must be Boolean)

Enable or disable the communication mechanism for an instance

instance_name (defaults to None, must be String)

A required instance name (for single-instance LUs)

ip_check (defaults to True, must be Boolean)

Whether to ensure instance’s IP address is inactive

mode (defaults to None, must be OneOf import, create, remote-import)

Instance creation mode

name_check (defaults to True, must be Boolean)

Whether to check name

nics (defaults to None, must be List of (Dictionary with keys of (OneOf bridge, name, ip, vlan, mac, link, mode, network) and values of (None or String) [NIC parameters]))

List of NIC (network interface) definitions

no_install (defaults to None, must be None or Boolean)

Do not install the OS (will disable automatic start)

opportunistic_locking (defaults to False, must be Boolean)

Whether to employ opportunistic locking for nodes, meaning nodes already locked by another opcode won’t be considered for instance allocation (only when an iallocator is used)

os_type (defaults to None, must be None or NonEmptyString)

OS type for instance installation

osparams (defaults to {}, must be Dictionary with keys of Anything and values of Anything)

OS parameters for instance

osparams_private (defaults to None, must be None or (Dictionary with keys of Anything and values of (Private Anything)))

Private OS parameters for instance

osparams_secret (defaults to None, must be None or (Dictionary with keys of Anything and values of (Private Anything)))

Secret OS parameters for instance

pnode (defaults to None, must be None or NonEmptyString)

Primary node for an instance

pnode_uuid (defaults to None, must be None or NonEmptyString)

Primary node UUID for an instance

snode (defaults to None, must be None or NonEmptyString)

Secondary node for an instance

snode_uuid (defaults to None, must be None or NonEmptyString)

Secondary node UUID for an instance

source_handshake (defaults to None, must be None or (List of Anything))

Signed handshake from source (remote import only)

source_instance_name (defaults to None, must be None or NonEmptyString)

Source instance name (remote import only)

source_shutdown_timeout (defaults to 120, must be EqualOrGreaterThanZero)

How long source instance was given to shut down (remote import only)

source_x509_ca (defaults to None, must be None or NonEmptyString)

Source X509 CA in PEM format (remote import only)

src_node (defaults to None, must be None or NonEmptyString)

Source node for import

src_node_uuid (defaults to None, must be None or NonEmptyString)

Source node UUID for import

src_path (defaults to None, must be None or NonEmptyString)

Source directory for import

start (defaults to True, must be Boolean)

Whether to start instance after creation

tags (defaults to [], must be List of NonEmptyString)

Instance tags

wait_for_sync (defaults to True, must be Boolean)

Whether to wait for the disk to synchronize

Earlier versions used parameters named name and os. These have been replaced by instance_name and os_type to match the underlying opcode. The old names can still be used.

Job result:

List of NonEmptyString

/2/instances/[instance_name]

Instance-specific resource.

Method Required permissions
DELETE write
GET (none)

GET

Returns information about an instance, similar to the bulk output from the instance list.

Returned fields: admin_state, beparams, ctime, custom_beparams, custom_hvparams, custom_nicparams, disk.names, disk.sizes, disk.spindles, disk.uuids, disk_template, disk_usage, hvparams, mtime, name, network_port, nic.bridges, nic.ips, nic.links, nic.macs, nic.modes, nic.names, nic.networks, nic.networks.names, nic.uuids, oper_ram, oper_state, oper_vcpus, os, pnode, serial_no, snodes, status, tags, uuid.

DELETE

Deletes an instance.

It supports the dry-run argument.

Job result:

None

/2/instances/[instance_name]/info

Method Required permissions
GET (none)

GET

Requests detailed information about the instance. An optional parameter, static (bool), can be set to return only static information from the configuration without querying the instance’s nodes. The result will be a job id.

Job result:

Dictionary with keys of Anything and values of (Dictionary with keys of Anything and values of Anything)

/2/instances/[instance_name]/reboot

Reboots URI for an instance.

Method Required permissions
POST write

POST

Reboots the instance.

The URI takes optional type=soft|hard|full and ignore_secondaries=0|1 parameters.

type defines the reboot type. soft is just a normal reboot, without terminating the hypervisor. hard means full shutdown (including terminating the hypervisor process) and startup again. full is like hard but also recreates the configuration from ground up as if you would have done a gnt-instance shutdown and gnt-instance start on it.

ignore_secondaries is a bool argument indicating if we start the instance even if secondary disks are failing.

It supports the dry-run argument.

Job result:

None

/2/instances/[instance_name]/shutdown

Instance shutdown URI.

Method Required permissions
PUT write

PUT

Shutdowns an instance.

It supports the dry-run argument.

admin_state_source (defaults to None, must be None or (OneOf admin, user))

Who last changed the instance admin state

depends (defaults to None, must be None or (List of (((List of Anything) or Tuple) and (Length 2) and (Item 0 is (JobId or RelativeJobId), item 1 is (List of (OneOf canceled, success, error))))))

Job dependencies; if used through SubmitManyJobs relative (negative) job IDs can be used; see design document for details

force (defaults to False, must be Boolean)

Whether to force the operation

ignore_offline_nodes (defaults to False, must be Boolean)

Whether to ignore offline nodes

instance_uuid (defaults to None, must be None or NonEmptyString)

An instance UUID (for single-instance LUs)

no_remember (defaults to False, must be Boolean)

Do not remember instance state changes

timeout (defaults to 120, must be EqualOrGreaterThanZero)

How long to wait for instance to shut down

Job result:

None

/2/instances/[instance_name]/startup

Instance startup URI.

Method Required permissions
PUT write

PUT

Startup an instance.

The URI takes an optional force=1|0 parameter to start the instance even if secondary disks are failing.

It supports the dry-run argument.

Job result:

None

/2/instances/[instance_name]/reinstall

Installs the operating system again.

Method Required permissions
POST write

POST

Returns a job ID.

Body parameters:

os (string, required)
Instance operating system.
start (bool, defaults to true)
Whether to start instance after reinstallation.
osparams (dict)
Dictionary with (temporary) OS parameters.

For backwards compatbility, this resource also takes the query parameters os (OS template name) and nostartup (bool). New clients should use the body parameters.

/2/instances/[instance_name]/replace-disks

Replaces disks on an instance.

Method Required permissions
POST write

POST

Returns a job ID.

Body parameters:

depends (defaults to None, must be None or (List of (((List of Anything) or Tuple) and (Length 2) and (Item 0 is (JobId or RelativeJobId), item 1 is (List of (OneOf canceled, success, error))))))

Job dependencies; if used through SubmitManyJobs relative (negative) job IDs can be used; see design document for details

disks (defaults to [], must be List of (EqualOrGreaterThanZero and (<function <lambda> at 0x337be60>)))

List of disk indices

early_release (defaults to False, must be Boolean)

Whether to release locks as soon as possible

iallocator (defaults to None, must be None or NonEmptyString)

Iallocator for deciding the target node for shared-storage instances

ignore_ipolicy (defaults to False, must be Boolean)

Whether to ignore ipolicy violations

instance_uuid (defaults to None, must be None or NonEmptyString)

An instance UUID (for single-instance LUs)

mode (defaults to None, must be OneOf replace_new_secondary, replace_on_secondary, replace_auto, replace_on_primary)

Replacement mode

remote_node (defaults to None, must be None or NonEmptyString)

New secondary node

remote_node_uuid (defaults to None, must be None or NonEmptyString)

New secondary node UUID

Ganeti 2.4 and below used query parameters. Those are deprecated and should no longer be used.

Job result:

None

/2/instances/[instance_name]/activate-disks

Activate disks on an instance.

Method Required permissions
PUT write

PUT

Takes the bool parameter ignore_size. When set ignore the recorded size (useful for forcing activation when recorded size is wrong).

Job result:

List of (Tuple of ((<NonEmptyString <String and EvalToTrue <function fn at 0x337ec80>>>, <NonEmptyString <String and EvalToTrue <function fn at 0x337ec80>>>, <NonEmptyString <String and EvalToTrue <function fn at 0x337ec80>>>)))

/2/instances/[instance_name]/deactivate-disks

Deactivate disks on an instance.

Method Required permissions
PUT write

PUT

Takes no parameters.

Job result:

None

/2/instances/[instance_name]/recreate-disks

Recreate disks of an instance.

Method Required permissions
POST write

POST

Returns a job ID.

Body parameters:

depends (defaults to None, must be None or (List of (((List of Anything) or Tuple) and (Length 2) and (Item 0 is (JobId or RelativeJobId), item 1 is (List of (OneOf canceled, success, error))))))

Job dependencies; if used through SubmitManyJobs relative (negative) job IDs can be used; see design document for details

disks (defaults to [], must be (List of EqualOrGreaterThanZero) or (List of ((Length 2) and (Item 0 is (EqualOrGreaterThanZero [Disk index]), item 1 is (Dictionary with keys of NonEmptyString and values of (NonEmptyString or Integer) [Disk parameters] [Parameters])))))

Disk list for recreate disks

iallocator (defaults to None, must be None or NonEmptyString)

Iallocator for deciding the target node for shared-storage instances

instance_uuid (defaults to None, must be None or NonEmptyString)

An instance UUID (for single-instance LUs)

node_uuids (defaults to None, must be None or (List of NonEmptyString))

New instance node UUIDs, if relocation is desired

nodes (defaults to [], must be List of NonEmptyString)

New instance nodes, if relocation is desired

Job result:

None

/2/instances/[instance_name]/disk/[disk_index]/grow

Grows one disk of an instance.

Method Required permissions
POST write

POST

Returns a job ID.

Body parameters:

absolute (defaults to False, must be Boolean)

Whether the amount parameter is an absolute target or a relative one

amount (defaults to None, must be EqualOrGreaterThanZero)

Disk amount to add or grow to

depends (defaults to None, must be None or (List of (((List of Anything) or Tuple) and (Length 2) and (Item 0 is (JobId or RelativeJobId), item 1 is (List of (OneOf canceled, success, error))))))

Job dependencies; if used through SubmitManyJobs relative (negative) job IDs can be used; see design document for details

instance_uuid (defaults to None, must be None or NonEmptyString)

An instance UUID (for single-instance LUs)

wait_for_sync (defaults to True, must be Boolean)

Whether to wait for the disk to synchronize

Job result:

None

/2/instances/[instance_name]/prepare-export

Prepares an export of an instance.

Method Required permissions
PUT write

PUT

Takes one parameter, mode, for the export mode. Returns a job ID.

Job result:

None or (Dictionary with keys of Anything and values of Anything)

/2/instances/[instance_name]/export

Exports an instance.

Method Required permissions
PUT write

PUT

Returns a job ID.

Body parameters:

compress (defaults to none, must be String)

Compression mode to use for moves during backups/imports

depends (defaults to None, must be None or (List of (((List of Anything) or Tuple) and (Length 2) and (Item 0 is (JobId or RelativeJobId), item 1 is (List of (OneOf canceled, success, error))))))

Job dependencies; if used through SubmitManyJobs relative (negative) job IDs can be used; see design document for details

destination (defaults to None, must be NonEmptyString or List)

Target node (depends on export mode)

destination_x509_ca (defaults to None, must be None or NonEmptyString)

Destination X509 CA (remote export only)

ignore_remove_failures (defaults to False, must be Boolean)

Whether to ignore failures while removing instances

instance_uuid (defaults to None, must be None or NonEmptyString)

An instance UUID (for single-instance LUs)

mode (defaults to local, must be OneOf remote, local)

Export mode

remove_instance (defaults to False, must be Boolean)

Whether to remove instance after export

shutdown (defaults to True, must be Boolean)

Whether to shutdown the instance before export

shutdown_timeout (defaults to 120, must be EqualOrGreaterThanZero)

How long to wait for instance to shut down

target_node_uuid (defaults to None, must be None or NonEmptyString)

Target node UUID (if local export)

x509_key_name (defaults to None, must be None or (List of Anything))

Name of X509 key (remote export only)

zero_free_space (defaults to False, must be Boolean)

Whether to zero the free space on the disks of the instance

zeroing_timeout_fixed (defaults to None, must be None or Integer)

The fixed part of time to wait before declaring the zeroing operation to have failed

zeroing_timeout_per_mib (defaults to None, must be None or Float)

The variable part of time to wait before declaring the zeroing operation to have failed, dependent on total size of disks

Job result:

Tuple of ((<Boolean <function TBool at 0x337e500>>, <List of Boolean <List and (<function <lambda> at 0x33f2aa0>) <function fn at 0x33f2b18>>>))

/2/instances/[instance_name]/migrate

Migrates an instance.

Method Required permissions
PUT write

PUT

Returns a job ID.

Body parameters:

allow_failover (defaults to False, must be Boolean)

Whether we can fallback to failover if migration is not possible

allow_runtime_changes (defaults to True, must be Boolean)

Whether to allow runtime changes while migrating

cleanup (defaults to False, must be Boolean)

Whether a previously failed migration should be cleaned up

depends (defaults to None, must be None or (List of (((List of Anything) or Tuple) and (Length 2) and (Item 0 is (JobId or RelativeJobId), item 1 is (List of (OneOf canceled, success, error))))))

Job dependencies; if used through SubmitManyJobs relative (negative) job IDs can be used; see design document for details

iallocator (defaults to None, must be None or NonEmptyString)

Iallocator for deciding the target node for shared-storage instances

ignore_hvversions (defaults to False, must be Boolean)

Whether to ignore incompatible Hypervisor versions

ignore_ipolicy (defaults to False, must be Boolean)

Whether to ignore ipolicy violations

instance_uuid (defaults to None, must be None or NonEmptyString)

An instance UUID (for single-instance LUs)

mode (defaults to None, must be None or (OneOf non-live, live))

Migration type (live/non-live)

target_node (defaults to None, must be None or NonEmptyString)

Target node for instance migration/failover

target_node_uuid (defaults to None, must be None or NonEmptyString)

Target node UUID for instance migration/failover

Job result:

None

/2/instances/[instance_name]/failover

Does a failover of an instance.

Method Required permissions
PUT write

PUT

Returns a job ID.

Body parameters:

cleanup (defaults to False, must be Boolean)

Whether a previously failed migration should be cleaned up

depends (defaults to None, must be None or (List of (((List of Anything) or Tuple) and (Length 2) and (Item 0 is (JobId or RelativeJobId), item 1 is (List of (OneOf canceled, success, error))))))

Job dependencies; if used through SubmitManyJobs relative (negative) job IDs can be used; see design document for details

iallocator (defaults to None, must be None or NonEmptyString)

Iallocator for deciding the target node for shared-storage instances

ignore_consistency (defaults to False, must be Boolean)

Whether to ignore disk consistency

ignore_ipolicy (defaults to False, must be Boolean)

Whether to ignore ipolicy violations

instance_uuid (defaults to None, must be None or NonEmptyString)

An instance UUID (for single-instance LUs)

shutdown_timeout (defaults to 120, must be EqualOrGreaterThanZero)

How long to wait for instance to shut down

target_node (defaults to None, must be None or NonEmptyString)

Target node for instance migration/failover

target_node_uuid (defaults to None, must be None or NonEmptyString)

Target node UUID for instance migration/failover

Job result:

None

/2/instances/[instance_name]/rename

Renames an instance.

Method Required permissions
PUT write

PUT

Returns a job ID.

Body parameters:

depends (defaults to None, must be None or (List of (((List of Anything) or Tuple) and (Length 2) and (Item 0 is (JobId or RelativeJobId), item 1 is (List of (OneOf canceled, success, error))))))

Job dependencies; if used through SubmitManyJobs relative (negative) job IDs can be used; see design document for details

instance_uuid (defaults to None, must be None or NonEmptyString)

An instance UUID (for single-instance LUs)

ip_check (defaults to True, must be Boolean)

Whether to ensure instance’s IP address is inactive

name_check (defaults to True, must be Boolean)

Whether to check name

new_name (defaults to None, must be NonEmptyString)

New instance name

Job result:

NonEmptyString

/2/instances/[instance_name]/modify

Modifies an instance.

Method Required permissions
PUT write

PUT

Returns a job ID.

Body parameters:

beparams (defaults to {}, must be Dictionary with keys of Anything and values of Anything)

Backend parameters for instance

conflicts_check (defaults to True, must be Boolean)

Whether to check for conflicting IP addresses

depends (defaults to None, must be None or (List of (((List of Anything) or Tuple) and (Length 2) and (Item 0 is (JobId or RelativeJobId), item 1 is (List of (OneOf canceled, success, error))))))

Job dependencies; if used through SubmitManyJobs relative (negative) job IDs can be used; see design document for details

disk_template (defaults to None, must be None or (OneOf sharedfile, diskless, plain, gluster, blockdev, drbd, ext, file, rbd))

Instance disk template

disks (defaults to [], must be (List of ((Length 3) and (Item 0 is (OneOf add, modify, remove), item 1 is (Integer or String [Device index, can be negative, e.g. -1 for last disk]), item 2 is (Dictionary with keys of NonEmptyString and values of (NonEmptyString or Integer) [Disk parameters]))) [Recommended]) or (List of ((Length 2) and (Item 0 is ((OneOf add, remove) or EqualOrGreaterThanZero), item 1 is (Dictionary with keys of NonEmptyString and values of (NonEmptyString or Integer) [Disk parameters]))) [Deprecated]))

List of disk changes

ext_params (defaults to {}, must be Dictionary with keys of Anything and values of Anything)

List of ExtStorage parameters

file_driver (defaults to None, must be None or (OneOf blktap2, blktap, loop))

Driver for file-backed disks

file_storage_dir (defaults to None, must be None or NonEmptyString)

Directory for storing file-backed disks

force (defaults to False, must be Boolean)

Whether to force the operation

force_variant (defaults to False, must be Boolean)

Whether to force an unknown OS variant

hotplug (defaults to False, must be Boolean)

hotplug_if_possible (defaults to False, must be Boolean)

hvparams (defaults to {}, must be Dictionary with keys of Anything and values of Anything)

Hypervisor parameters for instance, hypervisor-dependent

ignore_ipolicy (defaults to False, must be Boolean)

Whether to ignore ipolicy violations

instance_communication (defaults to None, must be None or Boolean)

Enable or disable the communication mechanism for an instance

instance_uuid (defaults to None, must be None or NonEmptyString)

An instance UUID (for single-instance LUs)

nics (defaults to [], must be (List of ((Length 3) and (Item 0 is (OneOf add, modify, remove), item 1 is (Integer or String [Device index, can be negative, e.g. -1 for last disk]), item 2 is (Dictionary with keys of (OneOf bridge, name, ip, vlan, mac, link, mode, network) and values of (None or String) [NIC parameters]))) [Recommended]) or (List of ((Length 2) and (Item 0 is ((OneOf add, remove) or EqualOrGreaterThanZero), item 1 is (Dictionary with keys of (OneOf bridge, name, ip, vlan, mac, link, mode, network) and values of (None or String) [NIC parameters]))) [Deprecated]))

List of NIC changes

offline (defaults to None, must be None or Boolean)

Whether to mark the instance as offline

os_name (defaults to None, must be None or NonEmptyString)

Change the instance’s OS without reinstalling the instance

osparams (defaults to {}, must be Dictionary with keys of Anything and values of Anything)

OS parameters for instance

osparams_private (defaults to None, must be None or (Dictionary with keys of Anything and values of (Private Anything)))

Private OS parameters for instance

pnode (defaults to None, must be None or NonEmptyString)

Primary node for an instance

pnode_uuid (defaults to None, must be None or NonEmptyString)

Primary node UUID for an instance

remote_node (defaults to None, must be None or NonEmptyString)

Secondary node (used when changing disk template)

remote_node_uuid (defaults to None, must be None or NonEmptyString)

Secondary node UUID (used when changing disk template)

runtime_mem (defaults to None, must be None or GreaterThanZero)

New runtime memory

wait_for_sync (defaults to True, must be Boolean)

Whether to wait for the disk to synchronize

Job result:

List of (Tuple of ((<NonEmptyString <String and EvalToTrue <function fn at 0x337ec80>>>, <Anything <function TAny at 0x337e320>>)))

/2/instances/[instance_name]/console

Request information for connecting to instance’s console.

Method Required permissions
GET read, write

GET

Returns a dictionary containing information about the instance’s console. Contained keys:

instance
Instance name
kind
Console type, one of ssh, vnc, spice or msg
message
Message to display (msg type only)
host
Host to connect to (ssh, vnc or spice only)
port
TCP port to connect to (vnc or spice only)
user
Username to use (ssh only)
command
Command to execute on machine (ssh only)
display
VNC display number (vnc only)

/2/instances/[instance_name]/tags

Manages per-instance tags.

Method Required permissions
DELETE write
GET (none)
PUT write

GET

Returns a list of tags.

Example:

["tag1", "tag2", "tag3"]

PUT

Add a set of tags.

The request as a list of strings should be PUT to this URI. The result will be a job id.

It supports the dry-run argument.

DELETE

Delete a tag.

In order to delete a set of tags, the DELETE request should be addressed to URI like:

/tags?tag=[tag]&tag=[tag]

It supports the dry-run argument.

/2/jobs

The /2/jobs resource.

Method Required permissions
GET (none)

GET

Returns a dictionary of jobs.

Returns: a dictionary with jobs id and uri.

If the optional bool bulk argument is provided and set to a true value (i.e. ?bulk=1), the output contains detailed information about jobs as a list.

Returned fields for bulk requests (unlike other bulk requests, these fields are not the same as for per-job requests): end_ts, id, ops, opstatus, received_ts, start_ts, status, summary.

/2/jobs/[job_id]

Individual job URI.

Method Required permissions
DELETE write
GET (none)

GET

Returns a dictionary with job parameters, containing the fields end_ts, id, oplog, opresult, ops, opstatus, received_ts, start_ts, status, summary.

The result includes:

  • id: job ID as a number
  • status: current job status as a string
  • ops: involved OpCodes as a list of dictionaries for each opcodes in the job
  • opstatus: OpCodes status as a list
  • opresult: OpCodes results as a list

For a successful opcode, the opresult field corresponding to it will contain the raw result from its LogicalUnit. In case an opcode has failed, its element in the opresult list will be a list of two elements:

  • first element the error type (the Ganeti internal error name)
  • second element a list of either one or two elements:
    • the first element is the textual error description
    • the second element, if any, will hold an error classification

The error classification is most useful for the OpPrereqError error type - these errors happen before the OpCode has started executing, so it’s possible to retry the OpCode without side effects. But whether it make sense to retry depends on the error classification:

resolver_error
Resolver errors. This usually means that a name doesn’t exist in DNS, so if it’s a case of slow DNS propagation the operation can be retried later.
insufficient_resources
Not enough resources (iallocator failure, disk space, memory, etc.). If the resources on the cluster increase, the operation might succeed.
temp_insufficient_resources
Simliar to insufficient_resources, but indicating the operation should be attempted again after some time.
wrong_input
Wrong arguments (at syntax level). The operation will not ever be accepted unless the arguments change.
wrong_state
Wrong entity state. For example, live migration has been requested for a down instance, or instance creation on an offline node. The operation can be retried once the resource has changed state.
unknown_entity
Entity not found. For example, information has been requested for an unknown instance.
already_exists
Entity already exists. For example, instance creation has been requested for an already-existing instance.
resource_not_unique
Resource not unique (e.g. MAC or IP duplication).
internal_error
Internal cluster error. For example, a node is unreachable but not set offline, or the ganeti node daemons are not working, etc. A gnt-cluster verify should be run.
environment_error
Environment error (e.g. node disk error). A gnt-cluster verify should be run.

Note that in the above list, by entity we refer to a node or instance, while by a resource we refer to an instance’s disk, or NIC, etc.

DELETE

Cancel a not-yet-started job.

/2/jobs/[job_id]/wait

Method Required permissions
GET write

GET

Waits for changes on a job. Takes the following body parameters in a dict:

fields
The job fields on which to watch for changes
previous_job_info
Previously received field values or None if not yet available
previous_log_serial
Highest log serial number received so far or None if not yet available

Returns None if no changes have been detected and a dict with two keys, job_info and log_entries otherwise.

/2/nodes

Nodes resource.

Method Required permissions
GET (none)

GET

Returns a list of all nodes.

Example:

[
  {
    "id": "node1.example.com",
    "uri": "\/nodes\/node1.example.com"
  },
  {
    "id": "node2.example.com",
    "uri": "\/nodes\/node2.example.com"
  }
]

If the optional bool bulk argument is provided and set to a true value (i.e ?bulk=1), the output contains detailed information about nodes as a list.

Returned fields: cnodes, cnos, csockets, ctime, ctotal, dfree, drained, dtotal, group.uuid, master_candidate, master_capable, mfree, mnode, mtime, mtotal, name, ndparams, offline, pinst_cnt, pinst_list, pip, role, serial_no, sinst_cnt, sinst_list, sip, spfree, sptotal, tags, uuid, vm_capable.

Example:

[
  {
    "pinst_cnt": 1,
    "mfree": 31280,
    "mtotal": 32763,
    "name": "www.example.com",
    "tags": [],
    "mnode": 512,
    "dtotal": 5246208,
    "sinst_cnt": 2,
    "dfree": 5171712,
    "offline": false,
    …
  },
  …
]

/2/nodes/[node_name]

Returns information about a node.

Method Required permissions
GET (none)

GET

Returned fields: cnodes, cnos, csockets, ctime, ctotal, dfree, drained, dtotal, group.uuid, master_candidate, master_capable, mfree, mnode, mtime, mtotal, name, ndparams, offline, pinst_cnt, pinst_list, pip, role, serial_no, sinst_cnt, sinst_list, sip, spfree, sptotal, tags, uuid, vm_capable.

/2/nodes/[node_name]/powercycle

Powercycles a node.

Method Required permissions
POST write

POST

Returns a job ID.

Job result:

None or NonEmptyString

/2/nodes/[node_name]/evacuate

Evacuates instances off a node.

Method Required permissions
POST write

POST

Returns a job ID. The result of the job will contain the IDs of the individual jobs submitted to evacuate the node.

Body parameters:

depends (defaults to None, must be None or (List of (((List of Anything) or Tuple) and (Length 2) and (Item 0 is (JobId or RelativeJobId), item 1 is (List of (OneOf canceled, success, error))))))

Job dependencies; if used through SubmitManyJobs relative (negative) job IDs can be used; see design document for details

early_release (defaults to False, must be Boolean)

Whether to release locks as soon as possible

iallocator (defaults to None, must be None or NonEmptyString)

Iallocator for deciding the target node for shared-storage instances

mode (defaults to None, must be OneOf all, secondary-only, primary-only)

Node evacuation mode

node_name (defaults to None, must be NonEmptyString)

A required node name (for single-node LUs)

node_uuid (defaults to None, must be None or NonEmptyString)

A node UUID (for single-node LUs)

remote_node (defaults to None, must be None or NonEmptyString)

New secondary node

remote_node_uuid (defaults to None, must be None or NonEmptyString)

New secondary node UUID

Up to and including Ganeti 2.4 query arguments were used. Those are no longer supported. The new request can be detected by the presence of the node-evac-res1 feature string.

Job result:

Dictionary containing none but the required key "jobs" (value List of ((Length 2) and (Item 0 is (Boolean [success]), item 1 is (String or JobId [Job ID if successful, error message otherwise]))) [List of submitted jobs])

/2/nodes/[node_name]/migrate

Migrates all primary instances from a node.

Method Required permissions
POST write

POST

If no mode is explicitly specified, each instances’ hypervisor default migration mode will be used. Body parameters:

allow_runtime_changes (defaults to True, must be Boolean)

Whether to allow runtime changes while migrating

depends (defaults to None, must be None or (List of (((List of Anything) or Tuple) and (Length 2) and (Item 0 is (JobId or RelativeJobId), item 1 is (List of (OneOf canceled, success, error))))))

Job dependencies; if used through SubmitManyJobs relative (negative) job IDs can be used; see design document for details

iallocator (defaults to None, must be None or NonEmptyString)

Iallocator for deciding the target node for shared-storage instances

ignore_ipolicy (defaults to False, must be Boolean)

Whether to ignore ipolicy violations

live (defaults to None, must be None or Boolean)

Obsolete ‘live’ migration mode (do not use)

mode (defaults to None, must be None or (OneOf non-live, live))

Migration type (live/non-live)

node_uuid (defaults to None, must be None or NonEmptyString)

A node UUID (for single-node LUs)

target_node (defaults to None, must be None or NonEmptyString)

Target node for instance migration/failover

target_node_uuid (defaults to None, must be None or NonEmptyString)

Target node UUID for instance migration/failover

The query arguments used up to and including Ganeti 2.4 are deprecated and should no longer be used. The new request format can be detected by the presence of the node-migrate-reqv1 feature string.

Job result:

Dictionary containing none but the required key "jobs" (value List of ((Length 2) and (Item 0 is (Boolean [success]), item 1 is (String or JobId [Job ID if successful, error message otherwise]))) [List of submitted jobs])

/2/nodes/[node_name]/role

Manages node role.

Method Required permissions
GET (none)
PUT write

The role is always one of the following:

  • drained
  • master-candidate
  • offline
  • regular

Note that the ‘master’ role is a special, and currently it can’t be modified via RAPI, only via the command line (gnt-cluster master-failover).

GET

Returns the current node role.

Example:

"master-candidate"

PUT

Change the node role.

The request is a string which should be PUT to this URI. The result will be a job id.

It supports the bool force argument.

Job result:

List of (Tuple of ((<NonEmptyString <String and EvalToTrue <function fn at 0x337ec80>>>, <Anything <function TAny at 0x337e320>>)))

/2/nodes/[node_name]/modify

Modifies the parameters of a node.

Method Required permissions
POST write

POST

Returns a job ID.

Body parameters:

auto_promote (defaults to False, must be Boolean)

Whether node(s) should be promoted to master candidate if necessary

depends (defaults to None, must be None or (List of (((List of Anything) or Tuple) and (Length 2) and (Item 0 is (JobId or RelativeJobId), item 1 is (List of (OneOf canceled, success, error))))))

Job dependencies; if used through SubmitManyJobs relative (negative) job IDs can be used; see design document for details

disk_state (defaults to None, must be None or (Dictionary with keys of Anything and values of Anything))

Set disk states

drained (defaults to None, must be None or Boolean)

Whether to mark the node as drained

force (defaults to False, must be Boolean)

Whether to force the operation

hv_state (defaults to None, must be None or (Dictionary with keys of Anything and values of Anything))

Set hypervisor states

master_candidate (defaults to None, must be None or Boolean)

Whether the node should become a master candidate

master_capable (defaults to None, must be None or Boolean)

Whether node can become master or master candidate

ndparams (defaults to None, must be None or (Dictionary with keys of Anything and values of Anything))

Node parameters

node_uuid (defaults to None, must be None or NonEmptyString)

A node UUID (for single-node LUs)

offline (defaults to None, must be None or Boolean)

Whether to mark the node offline

powered (defaults to None, must be None or Boolean)

Whether the node should be marked as powered

secondary_ip (defaults to None, must be None or NonEmptyString)

Secondary IP address

vm_capable (defaults to None, must be None or Boolean)

Whether node can host instances

Job result:

List of (Tuple of ((<NonEmptyString <String and EvalToTrue <function fn at 0x337ec80>>>, <Anything <function TAny at 0x337e320>>)))

/2/nodes/[node_name]/storage

Manages storage units on the node.

Method Required permissions
GET write

GET

Requests a list of storage units on a node. Requires the parameters storage_type for storage types that support space reporting (one of file, lvm-pv or lvm-vg) and output_fields. The result will be a job id, using which the result can be retrieved.

/2/nodes/[node_name]/storage/modify

Modifies storage units on the node.

Method Required permissions
PUT write

PUT

Modifies parameters of storage units on the node. Requires the parameters storage_type (one of file, lvm-pv or lvm-vg) and name (name of the storage unit). Parameters can be passed additionally. Currently only allocatable (bool) is supported. The result will be a job id.

Job result:

None

/2/nodes/[node_name]/storage/repair

Repairs a storage unit on the node.

Method Required permissions
PUT write

PUT

Repairs a storage unit on the node. Requires the parameters storage_type (currently only lvm-vg can be repaired) and name (name of the storage unit). The result will be a job id.

Job result:

None

/2/nodes/[node_name]/tags

Manages per-node tags.

Method Required permissions
DELETE write
GET (none)
PUT write

GET

Returns a list of tags.

Example:

["tag1", "tag2", "tag3"]

PUT

Add a set of tags.

The request as a list of strings should be PUT to this URI. The result will be a job id.

It supports the dry-run argument.

DELETE

Deletes tags.

In order to delete a set of tags, the DELETE request should be addressed to URI like:

/tags?tag=[tag]&tag=[tag]

It supports the dry-run argument.

/2/query/[resource]

Requests resource information. Available fields can be found in man pages and using /2/query/[resource]/fields. The resource is one of node, group, network, lock, filter, instance, job, export. See the query2 design document for more details.

Method Required permissions
GET read, write
PUT read, write

GET

Returns list of included fields and actual data. Takes a query parameter named “fields”, containing a comma-separated list of field names. Does not support filtering.

PUT

Returns list of included fields and actual data. The list of requested fields can either be given as the query parameter “fields” or as a body parameter with the same name. The optional body parameter “filter” can be given and must be either null or a list containing filter operators.

/2/query/[resource]/fields

Request list of available fields for a resource. The resource is one of node, group, network, lock, filter, instance, job, export. See the query2 design document for more details.

Method Required permissions
GET (none)

GET

Returns a list of field descriptions for available fields. Takes an optional query parameter named “fields”, containing a comma-separated list of field names.

/2/os

OS resource.

Method Required permissions
GET (none)

GET

Return a list of all OSes.

Can return error 500 in case of a problem. Since this is a costly operation for Ganeti 2.0, it is not recommended to execute it too often.

Example:

["debian-etch"]

/2/tags

Manages cluster tags.

Method Required permissions
DELETE write
GET (none)
PUT write

GET

Returns the cluster tags.

Example:

["tag1", "tag2", "tag3"]

PUT

Adds a set of tags.

The request as a list of strings should be PUT to this URI. The result will be a job id.

It supports the dry-run argument.

DELETE

Deletes tags.

In order to delete a set of tags, the DELETE request should be addressed to URI like:

/tags?tag=[tag]&tag=[tag]

It supports the dry-run argument.

/version

The version resource.

This resource should be used to determine the remote API version and to adapt clients accordingly.

Method Required permissions
GET (none)

GET

Returns the remote API version. Ganeti 1.2 returned 1 and Ganeti 2.0 returns 2.

Access permissions

The following list describes the access permissions required for each resource. See Users and passwords for more details.

/2/features
GET: (none)
/2/filters
GET: (none)
POST: write
/2/filters/[filter_uuid]
DELETE: write
GET: (none)
PUT: write
/2/groups
GET: (none)
POST: write
/2/groups/[group_name]
DELETE: write
GET: (none)
/2/groups/[group_name]/assign-nodes
PUT: write
/2/groups/[group_name]/modify
PUT: write
/2/groups/[group_name]/rename
PUT: write
/2/groups/[group_name]/tags
DELETE: write
GET: (none)
PUT: write
/2/info
GET: (none)
/2/instances
GET: (none)
POST: write
/2/instances-multi-alloc
POST: write
/2/instances/[instance_name]
DELETE: write
GET: (none)
/2/instances/[instance_name]/activate-disks
PUT: write
/2/instances/[instance_name]/console
GET: read, write
/2/instances/[instance_name]/deactivate-disks
PUT: write
/2/instances/[instance_name]/disk/[disk_index]/grow
POST: write
/2/instances/[instance_name]/export
PUT: write
/2/instances/[instance_name]/failover
PUT: write
/2/instances/[instance_name]/info
GET: (none)
/2/instances/[instance_name]/migrate
PUT: write
/2/instances/[instance_name]/modify
PUT: write
/2/instances/[instance_name]/prepare-export
PUT: write
/2/instances/[instance_name]/reboot
POST: write
/2/instances/[instance_name]/recreate-disks
POST: write
/2/instances/[instance_name]/reinstall
POST: write
/2/instances/[instance_name]/rename
PUT: write
/2/instances/[instance_name]/replace-disks
POST: write
/2/instances/[instance_name]/shutdown
PUT: write
/2/instances/[instance_name]/startup
PUT: write
/2/instances/[instance_name]/tags
DELETE: write
GET: (none)
PUT: write
/2/jobs
GET: (none)
/2/jobs/[job_id]
DELETE: write
GET: (none)
/2/jobs/[job_id]/wait
GET: write
/2/modify
PUT: write
/2/networks
GET: (none)
POST: write
/2/networks/[network_name]
DELETE: write
GET: (none)
/2/networks/[network_name]/connect
PUT: write
/2/networks/[network_name]/disconnect
PUT: write
/2/networks/[network_name]/modify
PUT: write
/2/networks/[network_name]/tags
DELETE: write
GET: (none)
PUT: write
/2/nodes
GET: (none)
/2/nodes/[node_name]
GET: (none)
/2/nodes/[node_name]/evacuate
POST: write
/2/nodes/[node_name]/migrate
POST: write
/2/nodes/[node_name]/modify
POST: write
/2/nodes/[node_name]/powercycle
POST: write
/2/nodes/[node_name]/role
GET: (none)
PUT: write
/2/nodes/[node_name]/storage
GET: write
/2/nodes/[node_name]/storage/modify
PUT: write
/2/nodes/[node_name]/storage/repair
PUT: write
/2/nodes/[node_name]/tags
DELETE: write
GET: (none)
PUT: write
/2/os
GET: (none)
/2/query/[resource]
GET: read, write
PUT: read, write
/2/query/[resource]/fields
GET: (none)
/2/redistribute-config
PUT: write
/2/tags
DELETE: write
GET: (none)
PUT: write
/version
GET: (none)

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