Kaydet (Commit) 7d5a1eeb authored tarafından Joffrey F's avatar Joffrey F

Add services documentation

Signed-off-by: 's avatarJoffrey F <joffrey@docker.com>
üst f53cdc3a
...@@ -68,26 +68,187 @@ client.remove_service('my_service_name') ...@@ -68,26 +68,187 @@ client.remove_service('my_service_name')
### Client.create_service ### Client.create_service
Create a service.
**Params:**
* task_template (dict): Specification of the task to start as part of the new
service. See the [TaskTemplate class](#TaskTemplate) for details.
* name (string): User-defined name for the service. Optional.
* labels (dict): A map of labels to associate with the service. Optional.
* mode (string): Scheduling mode for the service (`replicated` or `global`).
Defaults to `replicated`.
* update_config (dict): Specification for the update strategy of the service.
See the [UpdateConfig class](#UpdateConfig) for details. Default: `None`.
* networks (list): List of network names or IDs to attach the service to.
Default: `None`.
* endpoint_config (dict): Properties that can be configured to access and load
balance a service. Default: `None`.
**Returns:** A dictionary containing an `ID` key for the newly created service.
### Client.inspect_service ### Client.inspect_service
Return information on a service.
**Params:**
* service (string): A service identifier (either its name or service ID)
**Returns:** `True` if successful. Raises an `APIError` otherwise.
### Client.remove_service ### Client.remove_service
Stop and remove a service.
**Params:**
* service (string): A service identifier (either its name or service ID)
**Returns:** `True` if successful. Raises an `APIError` otherwise.
### Client.services ### Client.services
List services.
**Params:**
* filters (dict): Filters to process on the nodes list. Valid filters:
`id` and `name`. Default: `None`.
**Returns:** A list of dictionaries containing data about each service.
### Client.update_service ### Client.update_service
Update a service.
**Params:**
* service (string): A service identifier (either its name or service ID).
* version (int): The version number of the service object being updated. This
is required to avoid conflicting writes.
* task_template (dict): Specification of the updated task to start as part of
the service. See the [TaskTemplate class](#TaskTemplate) for details.
* name (string): New name for the service. Optional.
* labels (dict): A map of labels to associate with the service. Optional.
* mode (string): Scheduling mode for the service (`replicated` or `global`).
Defaults to `replicated`.
* update_config (dict): Specification for the update strategy of the service.
See the [UpdateConfig class](#UpdateConfig) for details. Default: `None`.
* networks (list): List of network names or IDs to attach the service to.
Default: `None`.
* endpoint_config (dict): Properties that can be configured to access and load
balance a service. Default: `None`.
**Returns:** `True` if successful. Raises an `APIError` otherwise.
### Configuration objects (`docker.types`) ### Configuration objects (`docker.types`)
#### ContainerSpec #### ContainerSpec
#### LogDriver A `ContainerSpec` object describes the behavior of containers that are part
of a task, and is used when declaring a `TaskTemplate`.
**Params:**
* image (string): The image name to use for the container.
* command (string or list): The command to be run in the image.
* args (list): Arguments to the command.
* env (dict): Environment variables.
* dir (string): The working directory for commands to run in.
* user (string): The user inside the container.
* labels (dict): A map of labels to associate with the service.
* mounts (list): A list of specifications for mounts to be added to containers
created as part of the service. See the [Mount class](#Mount) for details.
* stop_grace_period (int): Amount of time to wait for the container to
terminate before forcefully killing it.
#### DriverConfig
A `LogDriver` object indicates which driver to use, as well as its
configuration. It can be used for the `log_driver` in a `ContainerSpec`,
and for the `driver_config` in a volume `Mount`.
**Params:**
* name (string): Name of the logging driver to use.
* options (dict): Driver-specific options. Default: `None`.
#### Mount #### Mount
A `Mount` object describes a mounted folder's configuration inside a
container. A list of `Mount`s would be used as part of a `ContainerSpec`.
* target (string): Container path.
* source (string): Mount source (e.g. a volume name or a host path).
* type (string): The mount type (`bind` or `volume`). Default: `volume`.
* read_only (bool): Whether the mount should be read-only.
* propagation (string): A propagation mode with the value `[r]private`,
`[r]shared`, or `[r]slave`. Only valid for the `bind` type.
* no_copy (bool): False if the volume should be populated with the data from
the target. Default: `False`. Only valid for the `volume` type.
* labels (dict): User-defined name and labels for the volume. Only valid for
the `volume` type.
* driver_config (dict): Volume driver configuration.
See the [DriverConfig class](#DriverConfig) for details. Only valid for the
`volume` type.
#### Resources #### Resources
A `Resources` object configures resource allocation for containers when
made part of a `ContainerSpec`.
**Params:**
* cpu_limit (int): CPU limit in units of 10^9 CPU shares.
* mem_limit (int): Memory limit in Bytes.
* cpu_reservation (int): CPU reservation in units of 10^9 CPU shares.
* mem_reservation (int): Memory reservation in Bytes.
#### RestartPolicy #### RestartPolicy
A `RestartPolicy` object is used when creating a `ContainerSpec`. It dictates
whether a container should restart after stopping or failing.
* condition (string): Condition for restart (`none`, `on-failure`, or `any`).
Default: `none`.
* delay (int): Delay between restart attempts. Default: 0
* attempts (int): Maximum attempts to restart a given container before giving
up. Default value is 0, which is ignored.
* window (int): Time window used to evaluate the restart policy. Default value
is 0, which is unbounded.
#### TaskTemplate #### TaskTemplate
A `TaskTemplate` object can be used to describe the task specification to be
used when creating or updating a service.
**Params:**
* container_spec (dict): Container settings for containers started as part of
this task. See the [ContainerSpec class](#ContainerSpec) for details.
* log_driver (dict): Log configuration for containers created as part of the
service. See the [DriverConfig class](#DriverConfig) for details.
* resources (dict): Resource requirements which apply to each individual
container created as part of the service. See the
[Resources class](#Resources) for details.
* restart_policy (dict): Specification for the restart policy which applies
to containers created as part of this service. See the
[RestartPolicy class](#RestartPolicy) for details.
* placement (list): A list of constraints.
#### UpdateConfig #### UpdateConfig
An `UpdateConfig` object can be used to specify the way container updates
should be performed by a service.
**Params:**
* parallelism (int): Maximum number of tasks to be updated in one iteration
(0 means unlimited parallelism). Default: 0.
* delay (int): Amount of time between updates.
* failure_action (string): Action to take if an updated task fails to run, or
stops running during the update. Acceptable values are `continue` and
`pause`. Default: `continue`
...@@ -93,7 +93,7 @@ class ServiceTest(helpers.BaseTestCase): ...@@ -93,7 +93,7 @@ class ServiceTest(helpers.BaseTestCase):
container_spec = docker.types.ContainerSpec( container_spec = docker.types.ContainerSpec(
'busybox', ['echo', 'hello'] 'busybox', ['echo', 'hello']
) )
log_cfg = docker.types.LogDriver('none') log_cfg = docker.types.DriverConfig('none')
task_tmpl = docker.types.TaskTemplate( task_tmpl = docker.types.TaskTemplate(
container_spec, log_driver=log_cfg container_spec, log_driver=log_cfg
) )
......
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