-------------------
``ganeti-rapi`` reads users and passwords from a file (usually
-``/var/lib/ganeti/rapi_users``) on startup. After modifying the password
-file, ``ganeti-rapi`` must be restarted.
+``/var/lib/ganeti/rapi/users``) on startup. Changes to the file will be
+read automatically.
Each line consists of two or three fields separated by whitespace. The
first two fields are for username and password. The third field is
.. [#pwhash] Using the MD5 hash of username, realm and password is
- described in RFC2617_ ("HTTP Authentication"), sections 3.2.2.2 and
- 3.3. The reason for using it over another algorithm is forward
+ 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
--------
The protocol used is JSON_ over HTTP designed after the REST_ principle.
-HTTP Basic authentication as per RFC2617_ is supported.
+HTTP Basic authentication as per :rfc:`2617` is supported.
.. _JSON: http://www.json.org/
.. _REST: http://en.wikipedia.org/wiki/Representational_State_Transfer
-.. _RFC2617: http://tools.ietf.org/rfc/rfc2617.txt
+
+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.
+
+.. highlight:: ruby
+
+Unlike Python's `JSON encoder and decoder
+<http://docs.python.org/library/json.html>`_, 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
------------------
``dry-run``
+++++++++++
-The optional *dry-run* argument, if provided and set to a positive
-integer value (e.g. ``?dry-run=1``), signals to Ganeti that the job
-should not be executed, only the pre-execution checks will be done.
+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
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.
+
+.. _rapi-ipolicy:
+
+``ipolicy``
++++++++++++
+
+The instance policy specification is a dict with the following fields:
+
+.. pyassert::
+
+ constants.IPOLICY_ALL_KEYS == set([constants.ISPECS_MIN,
+ constants.ISPECS_MAX,
+ constants.ISPECS_STD,
+ constants.IPOLICY_DTS,
+ constants.IPOLICY_VCPU_RATIO,
+ constants.IPOLICY_SPINDLE_RATIO])
+
+
+.. pyassert::
+
+ (set(constants.ISPECS_PARAMETER_TYPES.keys()) ==
+ set([constants.ISPEC_MEM_SIZE,
+ constants.ISPEC_DISK_SIZE,
+ constants.ISPEC_DISK_COUNT,
+ constants.ISPEC_CPU_COUNT,
+ constants.ISPEC_NIC_COUNT]))
+
+.. |ispec-min| replace:: :pyeval:`constants.ISPECS_MIN`
+.. |ispec-max| replace:: :pyeval:`constants.ISPECS_MAX`
+.. |ispec-std| replace:: :pyeval:`constants.ISPECS_STD`
+
+
+|ispec-min|, |ispec-max|, |ispec-std|
+ A sub- `dict` with the following fields, which sets the limit and standard
+ values of the instances:
+
+ :pyeval:`constants.ISPEC_MEM_SIZE`
+ The size in MiB of the memory used
+ :pyeval:`constants.ISPEC_DISK_SIZE`
+ The size in MiB of the disk used
+ :pyeval:`constants.ISPEC_DISK_COUNT`
+ The numbers of disks used
+ :pyeval:`constants.ISPEC_CPU_COUNT`
+ The numbers of cpus used
+ :pyeval:`constants.ISPEC_NIC_COUNT`
+ The numbers of nics used
+:pyeval:`constants.IPOLICY_DTS`
+ A `list` of disk templates allowed for instances using this policy
+:pyeval:`constants.IPOLICY_VCPU_RATIO`
+ Maximum ratio of virtual to physical CPUs (`float`)
+:pyeval:`constants.IPOLICY_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
+++++
``/``
+++++
-The root resource.
-
-It supports the following commands: ``GET``.
-
-``GET``
-~~~~~~~
-
-Shows the list of mapped resources.
-
-Returns: a dictionary with 'name' and 'uri' keys for each of them.
+The root resource. Has no function, but for legacy reasons the ``GET``
+method is supported.
``/2``
++++++
-The ``/2`` resource, the root of the version 2 API.
-
-It supports the following commands: ``GET``.
-
-``GET``
-~~~~~~~
-
-Show the list of mapped resources.
-
-Returns: a dictionary with ``name`` and ``uri`` keys for each of them.
+Has no function, but for legacy reasons the ``GET`` method is supported.
``/2/info``
+++++++++++
Redistribute configuration to all nodes. The result will be a job id.
+Job result:
+
+.. opcode_result:: OP_CLUSTER_REDIST_CONF
+
+
+``/2/features``
++++++++++++++++
+
+``GET``
+~~~~~~~
+
+Returns a list of features supported by the RAPI server. Available
+features:
+
+.. pyassert::
+
+ rlib2.ALL_FEATURES == set([rlib2._INST_CREATE_REQV1,
+ rlib2._INST_REINSTALL_REQV1,
+ rlib2._NODE_MIGRATE_REQV1,
+ rlib2._NODE_EVAC_RES1])
+
+:pyeval:`rlib2._INST_CREATE_REQV1`
+ Instance creation request data version 1 supported.
+:pyeval:`rlib2._INST_REINSTALL_REQV1`
+ Instance reinstall supports body parameters.
+:pyeval:`rlib2._NODE_MIGRATE_REQV1`
+ Whether migrating a node (``/2/nodes/[node_name]/migrate``) supports
+ request body parameters.
+:pyeval:`rlib2._NODE_EVAC_RES1`
+ Whether evacuating a node (``/2/nodes/[node_name]/evacuate``) returns
+ a new-style result (see resource description)
+
+
+``/2/modify``
+++++++++++++++++++++++++++++++++++++++++
+
+Modifies cluster parameters.
+
+Supports the following commands: ``PUT``.
+
+``PUT``
+~~~~~~~
+
+Returns a job ID.
+
+Body parameters:
+
+.. opcode_params:: OP_CLUSTER_SET_PARAMS
+
+Job result:
+
+.. opcode_result:: OP_CLUSTER_SET_PARAMS
+
+
+``/2/groups``
++++++++++++++
+
+The groups resource.
+
+It supports the following commands: ``GET``, ``POST``.
+
+``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: :pyeval:`utils.CommaJoin(sorted(rlib2.G_FIELDS))`
+
+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:
+
+.. opcode_params:: OP_GROUP_ADD
+
+Earlier versions used a parameter named ``name`` which, while still
+supported, has been renamed to ``group_name``.
+
+Job result:
+
+.. opcode_result:: OP_GROUP_ADD
+
+
+``/2/groups/[group_name]``
+++++++++++++++++++++++++++
+
+Returns information about a node group.
+
+It supports the following commands: ``GET``, ``DELETE``.
+
+``GET``
+~~~~~~~
+
+Returns information about a node group, similar to the bulk output from
+the node group list.
+
+Returned fields: :pyeval:`utils.CommaJoin(sorted(rlib2.G_FIELDS))`
+
+``DELETE``
+~~~~~~~~~~
+
+Deletes a node group.
+
+It supports the ``dry-run`` argument.
+
+Job result:
+
+.. opcode_result:: OP_GROUP_REMOVE
+
+
+``/2/groups/[group_name]/modify``
++++++++++++++++++++++++++++++++++
+
+Modifies the parameters of a node group.
+
+Supports the following commands: ``PUT``.
+
+``PUT``
+~~~~~~~
+
+Returns a job ID.
+
+Body parameters:
+
+.. opcode_params:: OP_GROUP_SET_PARAMS
+ :exclude: group_name
+
+Job result:
+
+.. opcode_result:: OP_GROUP_SET_PARAMS
+
+
+``/2/groups/[group_name]/rename``
++++++++++++++++++++++++++++++++++
+
+Renames a node group.
+
+Supports the following commands: ``PUT``.
+
+``PUT``
+~~~~~~~
+
+Returns a job ID.
+
+Body parameters:
+
+.. opcode_params:: OP_GROUP_RENAME
+ :exclude: group_name
+
+Job result:
+
+.. opcode_result:: OP_GROUP_RENAME
+
+
+``/2/groups/[group_name]/assign-nodes``
++++++++++++++++++++++++++++++++++++++++
+
+Assigns nodes to a group.
+
+Supports the following commands: ``PUT``.
+
+``PUT``
+~~~~~~~
+
+Returns a job ID. It supports the ``dry-run`` and ``force`` arguments.
+
+Body parameters:
+
+.. opcode_params:: OP_GROUP_ASSIGN_NODES
+ :exclude: group_name, force, dry_run
+
+Job result:
+
+.. opcode_result:: OP_GROUP_ASSIGN_NODES
+
+
+``/2/groups/[group_name]/tags``
++++++++++++++++++++++++++++++++
+
+Manages per-nodegroup tags.
+
+Supports the following commands: ``GET``, ``PUT``, ``DELETE``.
+
+``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``
++++++++++++++++
}
]
-If the optional *bulk* argument is provided and set to a true value (i.e
-``?bulk=1``), the output contains detailed information about instances
-as a list.
+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: :pyeval:`utils.CommaJoin(sorted(rlib2.I_FIELDS))`
Example::
Creates an instance.
-If the optional *dry-run* argument is provided and set to a positive
-integer valu (e.g. ``?dry-run=1``), 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.
+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)
+
+.. opcode_params:: OP_INSTANCE_CREATE
+
+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:
+
+.. opcode_result:: OP_INSTANCE_CREATE
+
+
``/2/instances/[instance_name]``
++++++++++++++++++++++++++++++++
Returns information about an instance, similar to the bulk output from
the instance list.
+Returned fields: :pyeval:`utils.CommaJoin(sorted(rlib2.I_FIELDS))`
+
``DELETE``
~~~~~~~~~~
It supports the ``dry-run`` argument.
+Job result:
+
+.. opcode_result:: OP_INSTANCE_REMOVE
+
``/2/instances/[instance_name]/info``
+++++++++++++++++++++++++++++++++++++++
configuration without querying the instance's nodes. The result will be
a job id.
+Job result:
+
+.. opcode_result:: OP_INSTANCE_QUERY_DATA
+
``/2/instances/[instance_name]/reboot``
+++++++++++++++++++++++++++++++++++++++
Reboots the instance.
-The URI takes optional ``type=hard|soft|full`` and
-``ignore_secondaries=False|True`` parameters.
+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:
+
+.. opcode_result:: OP_INSTANCE_REBOOT
+
``/2/instances/[instance_name]/shutdown``
+++++++++++++++++++++++++++++++++++++++++
It supports the ``dry-run`` argument.
+.. opcode_params:: OP_INSTANCE_SHUTDOWN
+ :exclude: instance_name, dry_run
+
+Job result:
+
+.. opcode_result:: OP_INSTANCE_SHUTDOWN
+
``/2/instances/[instance_name]/startup``
++++++++++++++++++++++++++++++++++++++++
Startup an instance.
-The URI takes an optional ``force=False|True`` parameter to start the
-instance if even if secondary disks are failing.
+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:
+
+.. opcode_result:: OP_INSTANCE_STARTUP
+
+
``/2/instances/[instance_name]/reinstall``
++++++++++++++++++++++++++++++++++++++++++++++
``POST``
~~~~~~~~
-Takes the parameters ``os`` (OS template name) and ``nostartup`` (bool).
+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``
``POST``
~~~~~~~~
-Takes the parameters ``mode`` (one of ``replace_on_primary``,
-``replace_on_secondary``, ``replace_new_secondary`` or
-``replace_auto``), ``disks`` (comma separated list of disk indexes),
-``remote_node`` and ``iallocator``.
+Returns a job ID.
+
+Body parameters:
+
+.. opcode_params:: OP_INSTANCE_REPLACE_DISKS
+ :exclude: instance_name
+
+Ganeti 2.4 and below used query parameters. Those are deprecated and
+should no longer be used.
+
+Job result:
+
+.. opcode_result:: OP_INSTANCE_REPLACE_DISKS
+
+
+``/2/instances/[instance_name]/activate-disks``
++++++++++++++++++++++++++++++++++++++++++++++++
+
+Activate disks on an instance.
+
+It supports the following commands: ``PUT``.
+
+``PUT``
+~~~~~~~
+
+Takes the bool parameter ``ignore_size``. When set ignore the recorded
+size (useful for forcing activation when recorded size is wrong).
+
+Job result:
+
+.. opcode_result:: OP_INSTANCE_ACTIVATE_DISKS
+
+
+``/2/instances/[instance_name]/deactivate-disks``
++++++++++++++++++++++++++++++++++++++++++++++++++
+
+Deactivate disks on an instance.
+
+It supports the following commands: ``PUT``.
+
+``PUT``
+~~~~~~~
+
+Takes no parameters.
+
+Job result:
+
+.. opcode_result:: OP_INSTANCE_DEACTIVATE_DISKS
+
+
+``/2/instances/[instance_name]/recreate-disks``
++++++++++++++++++++++++++++++++++++++++++++++++++
+
+Recreate disks of an instance. Supports the following commands:
+``POST``.
+
+``POST``
+~~~~~~~~
+
+Returns a job ID.
+
+Body parameters:
+
+.. opcode_params:: OP_INSTANCE_RECREATE_DISKS
+ :exclude: instance_name
+
+Job result:
+
+.. opcode_result:: OP_INSTANCE_RECREATE_DISKS
+
+
+``/2/instances/[instance_name]/disk/[disk_index]/grow``
++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+
+Grows one disk of an instance.
+
+Supports the following commands: ``POST``.
+
+``POST``
+~~~~~~~~
+
+Returns a job ID.
+
+Body parameters:
+
+.. opcode_params:: OP_INSTANCE_GROW_DISK
+ :exclude: instance_name, disk
+
+Job result:
+
+.. opcode_result:: OP_INSTANCE_GROW_DISK
+
+
+``/2/instances/[instance_name]/prepare-export``
++++++++++++++++++++++++++++++++++++++++++++++++++
+
+Prepares an export of an instance.
+
+It supports the following commands: ``PUT``.
+
+``PUT``
+~~~~~~~
+
+Takes one parameter, ``mode``, for the export mode. Returns a job ID.
+
+Job result:
+
+.. opcode_result:: OP_BACKUP_PREPARE
+
+
+``/2/instances/[instance_name]/export``
++++++++++++++++++++++++++++++++++++++++++++++++++
+
+Exports an instance.
+
+It supports the following commands: ``PUT``.
+
+``PUT``
+~~~~~~~
+
+Returns a job ID.
+
+Body parameters:
+
+.. opcode_params:: OP_BACKUP_EXPORT
+ :exclude: instance_name
+ :alias: target_node=destination
+
+Job result:
+
+.. opcode_result:: OP_BACKUP_EXPORT
+
+
+``/2/instances/[instance_name]/migrate``
+++++++++++++++++++++++++++++++++++++++++
+
+Migrates an instance.
+
+Supports the following commands: ``PUT``.
+
+``PUT``
+~~~~~~~
+
+Returns a job ID.
+
+Body parameters:
+
+.. opcode_params:: OP_INSTANCE_MIGRATE
+ :exclude: instance_name, live
+
+Job result:
+
+.. opcode_result:: OP_INSTANCE_MIGRATE
+
+
+``/2/instances/[instance_name]/failover``
++++++++++++++++++++++++++++++++++++++++++
+
+Does a failover of an instance.
+
+Supports the following commands: ``PUT``.
+
+``PUT``
+~~~~~~~
+
+Returns a job ID.
+
+Body parameters:
+
+.. opcode_params:: OP_INSTANCE_FAILOVER
+ :exclude: instance_name
+
+Job result:
+
+.. opcode_result:: OP_INSTANCE_FAILOVER
+
+
+``/2/instances/[instance_name]/rename``
+++++++++++++++++++++++++++++++++++++++++
+
+Renames an instance.
+
+Supports the following commands: ``PUT``.
+
+``PUT``
+~~~~~~~
+
+Returns a job ID.
+
+Body parameters:
+
+.. opcode_params:: OP_INSTANCE_RENAME
+ :exclude: instance_name
+
+Job result:
+
+.. opcode_result:: OP_INSTANCE_RENAME
+
+
+``/2/instances/[instance_name]/modify``
+++++++++++++++++++++++++++++++++++++++++
+
+Modifies an instance.
+
+Supports the following commands: ``PUT``.
+
+``PUT``
+~~~~~~~
+
+Returns a job ID.
+
+Body parameters:
+
+.. opcode_params:: OP_INSTANCE_SET_PARAMS
+ :exclude: instance_name
+
+Job result:
+
+.. opcode_result:: OP_INSTANCE_SET_PARAMS
+
+
+``/2/instances/[instance_name]/console``
+++++++++++++++++++++++++++++++++++++++++
+
+Request information for connecting to instance's console.
+
+Supports the following commands: ``GET``.
+
+``GET``
+~~~~~~~
+
+Returns a dictionary containing information about the instance's
+console. Contained keys:
+
+.. pyassert::
+
+ constants.CONS_ALL == frozenset([
+ constants.CONS_MESSAGE,
+ constants.CONS_SSH,
+ constants.CONS_VNC,
+ constants.CONS_SPICE,
+ ])
+
+``instance``
+ Instance name.
+``kind``
+ Console type, one of :pyeval:`constants.CONS_SSH`,
+ :pyeval:`constants.CONS_VNC`, :pyeval:`constants.CONS_SPICE`
+ or :pyeval:`constants.CONS_MESSAGE`.
+``message``
+ Message to display (:pyeval:`constants.CONS_MESSAGE` type only).
+``host``
+ Host to connect to (:pyeval:`constants.CONS_SSH`,
+ :pyeval:`constants.CONS_VNC` or :pyeval:`constants.CONS_SPICE` only).
+``port``
+ TCP port to connect to (:pyeval:`constants.CONS_VNC` or
+ :pyeval:`constants.CONS_SPICE` only).
+``user``
+ Username to use (:pyeval:`constants.CONS_SSH` only).
+``command``
+ Command to execute on machine (:pyeval:`constants.CONS_SSH` only)
+``display``
+ VNC display number (:pyeval:`constants.CONS_VNC` only).
``/2/instances/[instance_name]/tags``
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):
+:pyeval:`utils.CommaJoin(sorted(rlib2.J_FIELDS_BULK))`
+
``/2/jobs/[job_id]``
++++++++++++++++++++
``GET``
~~~~~~~
-Returns a job status.
-
-Returns: a dictionary with job parameters.
+Returns a dictionary with job parameters, containing the fields
+:pyeval:`utils.CommaJoin(sorted(rlib2.J_FIELDS))`.
The result includes:
effects. But whether it make sense to retry depends on the error
classification:
-``resolver_error``
+.. pyassert::
+
+ errors.ECODE_ALL == set([errors.ECODE_RESOLVER, errors.ECODE_NORES,
+ errors.ECODE_INVAL, errors.ECODE_STATE, errors.ECODE_NOENT,
+ errors.ECODE_EXISTS, errors.ECODE_NOTUNIQUE, errors.ECODE_FAULT,
+ errors.ECODE_ENVIRON])
+
+:pyeval:`errors.ECODE_RESOLVER`
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``
+:pyeval:`errors.ECODE_NORES`
Not enough resources (iallocator failure, disk space, memory,
etc.). If the resources on the cluster increase, the operation might
succeed.
-``wrong_input``
+:pyeval:`errors.ECODE_INVAL`
Wrong arguments (at syntax level). The operation will not ever be
accepted unless the arguments change.
-``wrong_state``
+:pyeval:`errors.ECODE_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``
+:pyeval:`errors.ECODE_NOENT`
Entity not found. For example, information has been requested for an
unknown instance.
-``already_exists``
+:pyeval:`errors.ECODE_EXISTS`
Entity already exists. For example, instance creation has been
requested for an already-existing instance.
-``resource_not_unique``
+:pyeval:`errors.ECODE_NOTUNIQUE`
Resource not unique (e.g. MAC or IP duplication).
-``internal_error``
+:pyeval:`errors.ECODE_FAULT`
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``
+:pyeval:`errors.ECODE_ENVIRON`
Environment error (e.g. node disk error). A ``gnt-cluster verify``
should be run.
Cancel a not-yet-started job.
+
+``/2/jobs/[job_id]/wait``
++++++++++++++++++++++++++
+
+``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``
++++++++++++
}
]
-If the optional 'bulk' argument is provided and set to 'true' value (i.e
-'?bulk=1'), the output contains detailed information about nodes as a
-list.
+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: :pyeval:`utils.CommaJoin(sorted(rlib2.N_FIELDS))`
Example::
It supports the following commands: ``GET``.
+Returned fields: :pyeval:`utils.CommaJoin(sorted(rlib2.N_FIELDS))`
+
+``/2/nodes/[node_name]/powercycle``
++++++++++++++++++++++++++++++++++++
+
+Powercycles a node. Supports the following commands: ``POST``.
+
+``POST``
+~~~~~~~~
+
+Returns a job ID.
+
+Job result:
+
+.. opcode_result:: OP_NODE_POWERCYCLE
+
+
``/2/nodes/[node_name]/evacuate``
+++++++++++++++++++++++++++++++++
-Evacuates all secondary instances off a node.
+Evacuates instances off a node.
It supports the following commands: ``POST``.
``POST``
~~~~~~~~
-To evacuate a node, either one of the ``iallocator`` or ``remote_node``
-parameters must be passed:
+Returns a job ID. The result of the job will contain the IDs of the
+individual jobs submitted to evacuate the node.
+
+Body parameters:
+
+.. opcode_params:: OP_NODE_EVACUATE
+ :exclude: nodes
+
+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
+:pyeval:`rlib2._NODE_EVAC_RES1` feature string.
+
+Job result:
+
+.. opcode_result:: OP_NODE_EVACUATE
- evacuate?iallocator=[iallocator]
- evacuate?remote_node=[nodeX.example.com]
``/2/nodes/[node_name]/migrate``
+++++++++++++++++++++++++++++++++
``POST``
~~~~~~~~
-No parameters are required, but ``live`` can be set to a boolean value.
+If no mode is explicitly specified, each instances' hypervisor default
+migration mode will be used. Body parameters:
+
+.. opcode_params:: OP_NODE_MIGRATE
+ :exclude: node_name
+
+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 :pyeval:`rlib2._NODE_MIGRATE_REQV1` feature string.
+
+Job result:
+
+.. opcode_result:: OP_NODE_MIGRATE
- migrate?live=[0|1]
``/2/nodes/[node_name]/role``
+++++++++++++++++++++++++++++
The role is always one of the following:
- drained
- - master
- 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``
~~~~~~~
The request is a string which should be PUT to this URI. The result will
be a job id.
-It supports the ``force`` argument.
+It supports the bool ``force`` argument.
+
+Job result:
+
+.. opcode_result:: OP_NODE_SET_PARAMS
+
+
+``/2/nodes/[node_name]/modify``
++++++++++++++++++++++++++++++++
+
+Modifies the parameters of a node. Supports the following commands:
+``POST``.
+
+``POST``
+~~~~~~~~
+
+Returns a job ID.
+
+Body parameters:
+
+.. opcode_params:: OP_NODE_SET_PARAMS
+ :exclude: node_name
+
+Job result:
+
+.. opcode_result:: OP_NODE_SET_PARAMS
+
``/2/nodes/[node_name]/storage``
++++++++++++++++++++++++++++++++
``GET``
~~~~~~~
+.. pyassert::
+
+ constants.VALID_STORAGE_TYPES == set([constants.ST_FILE,
+ constants.ST_LVM_PV,
+ constants.ST_LVM_VG])
+
Requests a list of storage units on a node. Requires the parameters
-``storage_type`` (one of ``file``, ``lvm-pv`` or ``lvm-vg``) and
+``storage_type`` (one of :pyeval:`constants.ST_FILE`,
+:pyeval:`constants.ST_LVM_PV` or :pyeval:`constants.ST_LVM_VG`) and
``output_fields``. The result will be a job id, using which the result
can be retrieved.
~~~~~~~
Modifies parameters of storage units on the node. Requires the
-parameters ``storage_type`` (one of ``file``, ``lvm-pv`` or ``lvm-vg``)
+parameters ``storage_type`` (one of :pyeval:`constants.ST_FILE`,
+:pyeval:`constants.ST_LVM_PV` or :pyeval:`constants.ST_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.
+additionally. Currently only :pyeval:`constants.SF_ALLOCATABLE` (bool)
+is supported. The result will be a job id.
+
+Job result:
+
+.. opcode_result:: OP_NODE_MODIFY_STORAGE
+
``/2/nodes/[node_name]/storage/repair``
+++++++++++++++++++++++++++++++++++++++
``PUT``
~~~~~~~
+.. pyassert::
+
+ constants.VALID_STORAGE_OPERATIONS == {
+ constants.ST_LVM_VG: set([constants.SO_FIX_CONSISTENCY]),
+ }
+
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.
+``storage_type`` (currently only :pyeval:`constants.ST_LVM_VG` can be
+repaired) and ``name`` (name of the storage unit). The result will be a
+job id.
+
+Job result:
+
+.. opcode_result:: OP_REPAIR_NODE_STORAGE
+
``/2/nodes/[node_name]/tags``
+++++++++++++++++++++++++++++
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
+:pyeval:`utils.CommaJoin(constants.QR_VIA_RAPI)`. See the :doc:`query2
+design document <design-query2>` for more details.
+
+Supports the following commands: ``GET``, ``PUT``.
+
+``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
+:pyeval:`utils.CommaJoin(constants.QR_VIA_RAPI)`. See the
+:doc:`query2 design document <design-query2>` for more details.
+
+Supports the following commands: ``GET``.
+
+``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``
+++++++++
projects / ganeti-local / blobdiff