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| Description |
| Implementation of the iallocator interface.
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| Synopsis |
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| type IAllocResult = (String, JSValue, List, List) | | | parseBaseInstance :: String -> JSRecord -> Result (String, Instance) | | | parseInstance :: NameAssoc -> String -> JSRecord -> Result (String, Instance) | | | parseNode :: NameAssoc -> String -> JSRecord -> Result (String, Node) | | | parseGroup :: String -> JSRecord -> Result (String, Group) | | | parseData :: String -> Result ([String], Request) | | | formatResponse :: Bool -> String -> JSValue -> String | | | describeSolution :: AllocSolution -> String | | | formatAllocate :: List -> AllocSolution -> Result IAllocResult | | | formatNodeEvac :: List -> List -> List -> (List, List, EvacSolution) -> Result IAllocResult | | | processRelocate :: List -> List -> List -> Idx -> Int -> [Ndx] -> Result (List, List, [Ndx]) | | | formatRelocate :: (List, List, [Ndx]) -> Result IAllocResult | | | processRequest :: Request -> Result IAllocResult | | | readRequest :: Options -> [String] -> IO Request | | | runIAllocator :: Request -> (Maybe (List, List), String) |
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| Documentation |
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| Type alias for the result of an IAllocator call.
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Parse the basic specifications of an instance.
Instances in the cluster instance list and the instance in an
Allocate request share some common properties, which are read by
this function.
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| :: NameAssoc | The node name-to-index association list
| | -> String | The name of the instance
| | -> JSRecord | The JSON object
| | -> Result (String, Instance) | | | Parses an instance as found in the cluster instance list.
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| :: NameAssoc | The group association
| | -> String | The node's name
| | -> JSRecord | The JSON object
| | -> Result (String, Node) | | | Parses a node as found in the cluster node list.
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| :: String | The group UUID
| | -> JSRecord | The JSON object
| | -> Result (String, Group) | | | Parses a group as found in the cluster group list.
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| :: String | The JSON message as received from Ganeti
| | -> Result ([String], Request) | Result tuple
| Top-level parser.
The result is a tuple of eventual warning messages and the parsed
request; if parsing the input data fails, we'll return a Bad
value.
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| :: Bool | Whether the request was successful
| | -> String | Information text
| | -> JSValue | The JSON encoded result
| | -> String | The full JSON-formatted message
| | Formats the result into a valid IAllocator response message.
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| Flatten the log of a solution into a string.
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| Convert allocation/relocation results into the result format.
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| Convert a node-evacuation/change group result.
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| :: List | The group list
| | -> List | The node list
| | -> List | The instance list
| | -> Idx | The index of the instance to move
| | -> Int | The number of nodes required
| | -> [Ndx] | Nodes which should not be used
| | -> Result (List, List, [Ndx]) | Solution list
| Runs relocate for a single instance.
This is wrapper over the tryNodeEvac function that is run
with a single instance (ours), and further it checks that the
result it got (in the nodes field) is actually consistent, as
tryNodeEvac is designed to output primarily an opcode list, not a
node list.
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| Process a request and return new node lists.
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| Reads the request from the data file(s).
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| Main iallocator pipeline.
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| Produced by Haddock version 2.6.0 |
