community.docker/plugins/modules/docker_container.py
Felix Fontein 1f2817fa20
Prepare 5.0.0 (#1123)
* Bump version to 5.0.0-a1.

* Drop support for ansible-core 2.15 and 2.16.

* Remove Python 2 and early Python 3 compatibility.
2025-10-05 20:22:50 +02:00

1350 lines
53 KiB
Python

#!/usr/bin/python
#
# Copyright 2016 Red Hat | Ansible
# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
# SPDX-License-Identifier: GPL-3.0-or-later
from __future__ import annotations
DOCUMENTATION = r"""
module: docker_container
short_description: manage Docker containers
description:
- Manage the life cycle of Docker containers.
- Supports check mode. Run with C(--check) and C(--diff) to view config difference and list of actions to be taken.
notes:
- For most config changes, the container needs to be recreated. This means that the existing container has to be destroyed
and a new one created. This can cause unexpected data loss and downtime. You can use the O(comparisons) option to prevent
this.
- If the module needs to recreate the container, it will only use the options provided to the module to create the new container
(except O(image)). Therefore, always specify B(all) options relevant to the container.
- When O(restart) is set to V(true), the module will only restart the container if no config changes are detected.
extends_documentation_fragment:
- community.docker.docker.api_documentation
- community.docker.attributes
- community.docker.attributes.actiongroup_docker
attributes:
check_mode:
support: partial
details:
- When trying to pull an image, the module assumes this is never changed in check mode except when the image is not
present on the Docker daemon.
- This behavior can be configured with O(pull_check_mode_behavior).
diff_mode:
support: full
idempotent:
support: partial
details:
- If O(recreate=true) or O(restart=true) the module is not idempotent.
options:
auto_remove:
description:
- Enable auto-removal of the container on daemon side when the container's process exits.
- If O(container_default_behavior=compatibility), this option has a default of V(false).
type: bool
blkio_weight:
description:
- Block IO (relative weight), between 10 and 1000.
type: int
capabilities:
description:
- List of capabilities to add to the container.
- This is equivalent to C(docker run --cap-add), or the docker-compose option C(cap_add).
type: list
elements: str
cap_drop:
description:
- List of capabilities to drop from the container.
type: list
elements: str
cgroupns_mode:
description:
- Specify the cgroup namespace mode for the container.
- The Docker CLI calls this simply C(cgroupns).
type: str
choices:
- host
- private
version_added: 3.0.0
cgroup_parent:
description:
- Specify the parent cgroup for the container.
type: str
version_added: 1.1.0
cleanup:
description:
- Use with O(detach=false) to remove the container after successful execution.
type: bool
default: false
command:
description:
- Command to execute when the container starts. A command may be either a string or a list.
- Prior to version 2.4, strings were split on commas.
- See O(command_handling) for differences in how strings and lists are handled.
type: raw
comparisons:
description:
- Allows to specify how properties of existing containers are compared with module options to decide whether the container
should be recreated / updated or not.
- Only options which correspond to the state of a container as handled by the Docker daemon can be specified, as well
as O(networks).
- Must be a dictionary specifying for an option one of the keys V(strict), V(ignore) and V(allow_more_present).
- If V(strict) is specified, values are tested for equality, and changes always result in updating or restarting. If
V(ignore) is specified, changes are ignored.
- V(allow_more_present) is allowed only for lists, sets and dicts. If it is specified for lists or sets, the container
will only be updated or restarted if the module option contains a value which is not present in the container's options.
If the option is specified for a dict, the container will only be updated or restarted if the module option contains
a key which is not present in the container's option, or if the value of a key present differs.
- The wildcard option C(*) can be used to set one of the default values V(strict) or V(ignore) to I(all) comparisons
which are not explicitly set to other values.
- See the examples for details.
type: dict
container_default_behavior:
description:
- In older versions of this module, various module options used to have default values. This caused problems with containers
which use different values for these options.
- The default value is now V(no_defaults). To restore the old behavior, set it to V(compatibility), which will ensure
that the default values are used when the values are not explicitly specified by the user.
- This affects the O(auto_remove), O(detach), O(init), O(interactive), O(memory), O(paused), O(privileged), O(read_only),
and O(tty) options.
type: str
choices:
- compatibility
- no_defaults
default: no_defaults
command_handling:
description:
- The default behavior for O(command) (when provided as a list) and O(entrypoint) is to convert them to strings without
considering shell quoting rules. (For comparing idempotency, the resulting string is split considering shell quoting
rules).
- Also, setting O(command) to an empty list of string, and setting O(entrypoint) to an empty list will be handled as
if these options are not specified. This is different from idempotency handling for other container-config related
options.
- When this is set to V(compatibility), which was the default until community.docker 3.0.0, the current behavior will
be kept.
- When this is set to V(correct), these options are kept as lists, and an empty value or empty list will be handled
correctly for idempotency checks. This has been the default since community.docker 3.0.0.
type: str
choices:
- compatibility
- correct
version_added: 1.9.0
default: correct
cpu_period:
description:
- Limit CPU CFS (Completely Fair Scheduler) period.
- See O(cpus) for an easier to use alternative.
type: int
cpu_quota:
description:
- Limit CPU CFS (Completely Fair Scheduler) quota.
- See O(cpus) for an easier to use alternative.
type: int
cpus:
description:
- Specify how much of the available CPU resources a container can use.
- A value of V(1.5) means that at most one and a half CPU (core) will be used.
type: float
cpuset_cpus:
description:
- CPUs in which to allow execution.
- For example V(1,3) or V(1-3).
type: str
cpuset_mems:
description:
- Memory nodes (MEMs) in which to allow execution V(0-3) or V(0,1).
type: str
cpu_shares:
description:
- CPU shares (relative weight).
type: int
default_host_ip:
description:
- Define the default host IP to use.
- Must be an empty string, an IPv4 address, or an IPv6 address.
- With Docker 20.10.2 or newer, this should be set to an empty string (V("")) to avoid the port bindings without an
explicit IP address to only bind to IPv4. See U(https://github.com/ansible-collections/community.docker/issues/70)
for details.
- By default, the module will try to auto-detect this value from the C(bridge) network's C(com.docker.network.bridge.host_binding_ipv4)
option. If it cannot auto-detect it, it will fall back to V(0.0.0.0).
type: str
version_added: 1.2.0
detach:
description:
- Enable detached mode to leave the container running in background.
- If disabled, the task will reflect the status of the container run (failed if the command failed).
- If O(container_default_behavior=compatibility), this option has a default of V(true).
type: bool
devices:
description:
- List of host device bindings to add to the container.
- Each binding is a mapping expressed in the format C(<path_on_host>:<path_in_container>:<cgroup_permissions>).
type: list
elements: str
device_read_bps:
description:
- List of device path and read rate (bytes per second) from device.
type: list
elements: dict
suboptions:
path:
description:
- Device path in the container.
type: str
required: true
rate:
description:
- Device read limit in format C(<number>[<unit>]).
- Number is a positive integer. Unit can be one of V(B) (byte), V(K) (kibibyte, 1024B), V(M) (mebibyte), V(G) (gibibyte),
V(T) (tebibyte), or V(P) (pebibyte).
- Omitting the unit defaults to bytes.
type: str
required: true
device_write_bps:
description:
- List of device and write rate (bytes per second) to device.
type: list
elements: dict
suboptions:
path:
description:
- Device path in the container.
type: str
required: true
rate:
description:
- Device read limit in format C(<number>[<unit>]).
- Number is a positive integer. Unit can be one of V(B) (byte), V(K) (kibibyte, 1024B), V(M) (mebibyte), V(G) (gibibyte),
V(T) (tebibyte), or V(P) (pebibyte).
- Omitting the unit defaults to bytes.
type: str
required: true
device_read_iops:
description:
- List of device and read rate (IO per second) from device.
type: list
elements: dict
suboptions:
path:
description:
- Device path in the container.
type: str
required: true
rate:
description:
- Device read limit.
- Must be a positive integer.
type: int
required: true
device_write_iops:
description:
- List of device and write rate (IO per second) to device.
type: list
elements: dict
suboptions:
path:
description:
- Device path in the container.
type: str
required: true
rate:
description:
- Device read limit.
- Must be a positive integer.
type: int
required: true
device_requests:
description:
- Allows to request additional resources, such as GPUs.
type: list
elements: dict
suboptions:
capabilities:
description:
- List of lists of strings to request capabilities.
- The top-level list entries are combined by OR, and for every list entry, the entries in the list it contains are
combined by AND.
- The driver tries to satisfy one of the sub-lists.
- Available capabilities for the C(nvidia) driver can be found at U(https://github.com/NVIDIA/nvidia-container-runtime).
type: list
elements: list
count:
description:
- Number or devices to request.
- Set to V(-1) to request all available devices.
type: int
device_ids:
description:
- List of device IDs.
type: list
elements: str
driver:
description:
- Which driver to use for this device.
type: str
options:
description:
- Driver-specific options.
type: dict
version_added: 0.1.0
device_cgroup_rules:
description:
- List of cgroup rules to apply to the container.
type: list
elements: str
version_added: 3.11.0
dns_opts:
description:
- List of DNS options.
type: list
elements: str
dns_servers:
description:
- List of custom DNS servers.
type: list
elements: str
dns_search_domains:
description:
- List of custom DNS search domains.
type: list
elements: str
domainname:
description:
- Container domainname.
type: str
env:
description:
- Dictionary of key,value pairs.
- Values which might be parsed as numbers, booleans or other types by the YAML parser must be quoted (for example V("true"))
in order to avoid data loss.
- Please note that if you are passing values in with Jinja2 templates, like V("{{ value }}"), you need to add V(| string)
to prevent Ansible to convert strings such as V("true") back to booleans. The correct way is to use V("{{ value |
string }}").
type: dict
env_file:
description:
- Path to a file, present on the target, containing environment variables C(FOO=BAR).
- If variable also present in O(env), then the O(env) value will override.
type: path
entrypoint:
description:
- Command that overwrites the default C(ENTRYPOINT) of the image.
- See O(command_handling) for differences in how strings and lists are handled.
type: list
elements: str
etc_hosts:
description:
- Dict of host-to-IP mappings, where each host name is a key in the dictionary. Each host name will be added to the
container's C(/etc/hosts) file.
- Instead of an IP address, the special value V(host-gateway) can also be used, which resolves to the host's gateway
IP and allows containers to connect to services running on the host.
type: dict
exposed_ports:
description:
- List of additional container ports which informs Docker that the container listens on the specified network ports
at runtime.
- If the port is already exposed using C(EXPOSE) in a Dockerfile, it does not need to be exposed again.
type: list
elements: str
aliases:
- exposed
- expose
force_kill:
description:
- Use the kill command when stopping a running container.
type: bool
default: false
aliases:
- forcekill
groups:
description:
- List of additional group names and/or IDs that the container process will run as.
type: list
elements: str
healthcheck:
description:
- Configure a check that is run to determine whether or not containers for this service are "healthy".
- See the docs for the L(HEALTHCHECK Dockerfile instruction,https://docs.docker.com/engine/reference/builder/#healthcheck)
for details on how healthchecks work.
- 'O(healthcheck.interval), O(healthcheck.timeout), O(healthcheck.start_period), and O(healthcheck.start_interval) are
specified as durations. They accept duration as a string in a format that look like: V(5h34m56s), V(1m30s), and so
on. The supported units are V(us), V(ms), V(s), V(m) and V(h).'
- See also O(state=healthy).
type: dict
suboptions:
test:
description:
- Command to run to check health.
- Must be either a string or a list. If it is a list, the first item must be one of V(NONE), V(CMD) or V(CMD-SHELL).
type: raw
test_cli_compatible:
description:
- If set to V(true), omitting O(healthcheck.test) while providing O(healthcheck) does not disable healthchecks,
but simply overwrites the image's values by the ones specified in O(healthcheck). This is the behavior used by
the Docker CLI.
- If set to V(false), omitting O(healthcheck.test) will disable the container's health check. This is the classical
behavior of the module and currently the default behavior.
default: false
type: bool
version_added: 3.10.0
interval:
description:
- Time between running the check.
- The default used by the Docker daemon is V(30s).
type: str
timeout:
description:
- Maximum time to allow one check to run.
- The default used by the Docker daemon is V(30s).
type: str
retries:
description:
- Consecutive number of failures needed to report unhealthy.
- The default used by the Docker daemon is V(3).
type: int
start_period:
description:
- Start period for the container to initialize before starting health-retries countdown.
- The default used by the Docker daemon is V(0s).
type: str
start_interval:
description:
- Time between health checks during the start period. This option requires Docker Engine version 25.0 or later.
- The default used by the Docker daemon is V(5s).
type: str
version_added: 3.10.0
hostname:
description:
- The container's hostname.
type: str
image:
description:
- Repository path and tag used to create the container. If an image is not found or pull is true, the image will be
pulled from the registry. If no tag is included, V(latest) will be used.
- Can also be an image ID. If this is the case, the image is assumed to be available locally. The O(pull) option is
ignored for this case.
type: str
image_comparison:
description:
- Determines which image to use for idempotency checks that depend on image parameters.
- The default, V(desired-image), will use the image that is provided to the module with the O(image) parameter.
- V(current-image) will use the image that the container is currently using, if the container exists. It falls back
to the image that is provided in case the container does not yet exist.
- This affects the O(env), O(env_file), O(exposed_ports), O(labels), and O(volumes) options.
type: str
choices:
- desired-image
- current-image
default: desired-image
version_added: 3.0.0
image_label_mismatch:
description:
- How to handle labels inherited from the image that are not set explicitly.
- When V(ignore), labels that are present in the image but not specified in O(labels) will be ignored. This is useful
to avoid having to specify the image labels in O(labels) while keeping labels O(comparisons) V(strict).
- When V(fail), if there are labels present in the image which are not set from O(labels), the module will fail. This
prevents introducing unexpected labels from the base image.
- 'B(Warning:) This option is ignored unless C(labels: strict) or C(*: strict) is specified in the O(comparisons) option.'
type: str
choices:
- 'ignore'
- 'fail'
default: ignore
version_added: 2.6.0
image_name_mismatch:
description:
- Determines what the module does if the image matches, but the image name in the container's configuration does not
match the image name provided to the module.
- 'This is ignored if C(image: ignore) is set in O(comparisons).'
- If set to V(recreate) (default) the container will be recreated.
- If set to V(ignore) the container will not be recreated because of this. It might still get recreated for other reasons.
This has been the default behavior of the module for a long time, but might not be what users expect.
- The default changed from V(ignore) to V(recreate) in community.docker 4.0.0.
type: str
choices:
- recreate
- ignore
default: recreate
version_added: 3.2.0
init:
description:
- Run an init inside the container that forwards signals and reaps processes.
- If O(container_default_behavior=compatibility), this option has a default of V(false).
type: bool
interactive:
description:
- Keep stdin open after a container is launched, even if not attached.
- If O(container_default_behavior=compatibility), this option has a default of V(false).
type: bool
ipc_mode:
description:
- Set the IPC mode for the container.
- Can be one of V(container:<name|id>) to reuse another container's IPC namespace or V(host) to use the host's IPC namespace
within the container.
type: str
keep_volumes:
description:
- Retain anonymous volumes associated with a removed container.
type: bool
default: true
kill_signal:
description:
- Override default signal used to kill a running container.
type: str
kernel_memory:
description:
- Kernel memory limit in format C(<number>[<unit>]). Number is a positive integer. Unit can be V(B) (byte), V(K) (kibibyte,
1024B), V(M) (mebibyte), V(G) (gibibyte), V(T) (tebibyte), or V(P) (pebibyte). Minimum is V(4M).
- Omitting the unit defaults to bytes.
type: str
labels:
description:
- Dictionary of key value pairs.
type: dict
links:
description:
- List of name aliases for linked containers in the format C(container_name:alias).
- Setting this will force container to be restarted.
type: list
elements: str
log_driver:
description:
- Specify the logging driver. Docker uses V(json-file) by default.
- See L(the Docker logging configuration documentation,https://docs.docker.com/config/containers/logging/configure/)
for possible choices.
type: str
log_options:
description:
- Dictionary of options specific to the chosen O(log_driver).
- See U(https://docs.docker.com/engine/admin/logging/overview/) for details.
- O(log_driver) needs to be specified for O(log_options) to take effect, even if using the default V(json-file) driver.
type: dict
aliases:
- log_opt
mac_address:
description:
- Container MAC address (for example, V(92:d0:c6:0a:29:33)).
- Note that the global container-wide MAC address is deprecated and no longer used since Docker API version 1.44.
- Use O(networks[].mac_address) instead.
type: str
memory:
description:
- Memory limit in format C(<number>[<unit>]). Number is a positive integer. Unit can be V(B) (byte), V(K) (kibibyte,
1024B), V(M) (mebibyte), V(G) (gibibyte), V(T) (tebibyte), or V(P) (pebibyte).
- Omitting the unit defaults to bytes.
- If O(container_default_behavior=compatibility), this option has a default of V("0").
type: str
memory_reservation:
description:
- Memory soft limit in format C(<number>[<unit>]). Number is a positive integer. Unit can be V(B) (byte), V(K) (kibibyte,
1024B), V(M) (mebibyte), V(G) (gibibyte), V(T) (tebibyte), or V(P) (pebibyte).
- Omitting the unit defaults to bytes.
type: str
memory_swap:
description:
- Total memory limit (memory + swap) in format C(<number>[<unit>]), or the special values V(unlimited) or V(-1) for
unlimited swap usage. Number is a positive integer. Unit can be V(B) (byte), V(K) (kibibyte, 1024B), V(M) (mebibyte),
V(G) (gibibyte), V(T) (tebibyte), or V(P) (pebibyte).
- Omitting the unit defaults to bytes.
type: str
memory_swappiness:
description:
- Tune a container's memory swappiness behavior. Accepts an integer between 0 and 100.
- If not set, the value will be remain the same if container exists and will be inherited from the host machine if it
is (re-)created.
type: int
mounts:
type: list
elements: dict
description:
- Specification for mounts to be added to the container. More powerful alternative to O(volumes).
suboptions:
target:
description:
- Path inside the container.
type: str
required: true
source:
description:
- Mount source.
- For example, this can be a volume name or a host path.
- If not supplied when O(mounts[].type=volume) an anonymous volume will be created.
type: str
type:
description:
- The mount type.
- Note that V(npipe) is only supported by Docker for Windows.
- V(cluster) requires Docker API 1.42+ and has been added in community.docker 4.8.0.
- V(image) requires Docker API 1.47+ and has been added in community.docker 4.8.0.
type: str
choices:
- bind
- npipe
- tmpfs
- volume
- cluster
- image
default: volume
read_only:
description:
- Whether the mount should be read-only.
type: bool
consistency:
description:
- The consistency requirement for the mount.
type: str
choices:
- cached
- consistent
- default
- delegated
create_mountpoint:
description:
- Create mount point on host if missing.
- Requires Docker API 1.42+.
- Only valid for O(mounts[].type=bind).
type: bool
version_added: 4.8.0
propagation:
description:
- Propagation mode. Only valid for the V(bind) type.
type: str
choices:
- private
- rprivate
- shared
- rshared
- slave
- rslave
no_copy:
description:
- False if the volume should be populated with the data from the target. Only valid for the V(volume) type.
- The default value is V(false).
type: bool
non_recursive:
description:
- Disable recursive bind mount.
- Requires Docker API 1.40+.
- Only valid for O(mounts[].type=bind).
type: bool
version_added: 4.8.0
read_only_non_recursive:
description:
- Make the mount non-recursively read-only, but still leave the mount recursive (unless NonRecursive is set to true in conjunction).
- Requires Docker API 1.44+.
- Only valid for O(mounts[].type=bind).
type: bool
version_added: 4.8.0
read_only_force_recursive:
description:
- Raise an error if the mount cannot be made recursively read-only.
- Requires Docker API 1.44+.
- Only valid for O(mounts[].type=bind).
type: bool
version_added: 4.8.0
labels:
description:
- User-defined name and labels for the volume. Only valid for the V(volume) type.
type: dict
volume_driver:
description:
- Specify the volume driver. Only valid for the V(volume) type.
- See L(here,https://docs.docker.com/storage/volumes/#use-a-volume-driver) for details.
type: str
volume_options:
description:
- Dictionary of options specific to the chosen volume_driver. See L(here,https://docs.docker.com/storage/volumes/#use-a-volume-driver)
for details.
type: dict
subpath:
type: str
description:
- Source path inside the volume/image. Must be relative without any back traversals.
- Requires Docker API 1.45+.
- Only valid for O(mounts[].type=volume) or O(mounts[].type=image).
version_added: 4.8.0
tmpfs_size:
description:
- The size for the tmpfs mount in bytes in format <number>[<unit>].
- Number is a positive integer. Unit can be one of V(B) (byte), V(K) (kibibyte, 1024B), V(M) (mebibyte), V(G) (gibibyte),
V(T) (tebibyte), or V(P) (pebibyte).
- Omitting the unit defaults to bytes.
type: str
tmpfs_mode:
description:
- The permission mode for the tmpfs mount.
type: str
tmpfs_options:
type: list
elements: dict
description:
- Options to be passed to the tmpfs mount.
- Every list element must be a dictionary with one key and a value.
All keys must be strings, and values can be either a string or V(null)/V(none) for a flag.
- Requires Docker API 1.46+.
- Only valid for O(mounts[].type=tmpfs).
version_added: 4.8.0
name:
description:
- Assign a name to a new container or match an existing container.
- When identifying an existing container name may be a name or a long or short container ID.
type: str
required: true
network_mode:
description:
- Connect the container to a network. Choices are V(bridge), V(host), V(none), C(container:<name|id>), C(<network_name>)
or V(default).
- Since community.docker 2.0.0, if O(networks_cli_compatible=true) and O(networks) contains at least one network, the
default value for O(network_mode) is the name of the first network in the O(networks) list. You can prevent this by
explicitly specifying a value for O(network_mode), like the default value V(default) which will be used by Docker
if O(network_mode) is not specified.
type: str
userns_mode:
description:
- Set the user namespace mode for the container. Currently, the only valid value are V(host) and the empty string (V("")).
type: str
networks:
description:
- List of networks the container belongs to.
- For examples of the data structure and usage see EXAMPLES below.
- 'To remove a container from one or more networks, use C(networks: strict) in the O(comparisons) option.'
- 'If O(networks_cli_compatible=false), this will not remove the default network if O(networks) is specified. This is
different from the behavior of C(docker run ...). You need to explicitly use C(networks: strict) in O(comparisons)
to enforce the removal of the default network (and all other networks not explicitly mentioned in O(networks)) in
that case.'
type: list
elements: dict
suboptions:
name:
description:
- The network's name.
type: str
required: true
ipv4_address:
description:
- The container's IPv4 address in this network.
type: str
ipv6_address:
description:
- The container's IPv6 address in this network.
type: str
links:
description:
- A list of containers to link to.
type: list
elements: str
aliases:
description:
- List of aliases for this container in this network. These names can be used in the network to reach this container.
type: list
elements: str
mac_address:
description:
- Endpoint MAC address (for example, V(92:d0:c6:0a:29:33)).
- This is only available for Docker API version 1.44 and later.
- Please note that when a container is attached to a network after creation, this is currently ignored by the Docker
Daemon at least in some cases. When passed on creation, this seems to work better.
type: str
version_added: 3.6.0
networks_cli_compatible:
description:
- If O(networks_cli_compatible=true) (default), this module will behave as C(docker run --network) and will B(not) add
the default network if O(networks) is specified. If O(networks) is not specified, the default network will be attached.
- 'When O(networks_cli_compatible=false) and networks are provided to the module with the O(networks) option, the module
behaves differently than C(docker run --network): C(docker run --network other) will create a container with network
C(other) attached, but the default network not attached. This module with O(networks) set to C({name: other}) will
create a container with both C(default) and C(other) attached. If C(networks: strict) or C(*: strict) is set in O(comparisons),
the C(default) network will be removed afterwards.'
type: bool
default: true
oom_killer:
description:
- Whether or not to disable OOM Killer for the container.
type: bool
oom_score_adj:
description:
- An integer value containing the score given to the container in order to tune OOM killer preferences.
type: int
output_logs:
description:
- If set to true, output of the container command will be printed.
- Only effective when O(log_driver) is set to V(json-file), V(journald), or V(local).
type: bool
default: false
paused:
description:
- Use with the started state to pause running processes inside the container.
- If O(container_default_behavior=compatibility), this option has a default of V(false).
type: bool
pid_mode:
description:
- Set the PID namespace mode for the container.
type: str
pids_limit:
description:
- Set PIDs limit for the container. It accepts an integer value.
- Set V(-1) for unlimited PIDs.
type: int
platform:
description:
- Platform for the container in the format C(os[/arch[/variant]]).
- "Note that since community.docker 3.5.0, the module uses both the image's metadata and the Docker daemon's information
to normalize platform strings similarly to how Docker itself is doing this. If you notice idempotency problems, L(please
create an issue in the community.docker GitHub repository,
https://github.com/ansible-collections/community.docker/issues/new?assignees=&labels=&projects=&template=bug_report.md).
For older community.docker versions, you can use the O(comparisons) option with C(platform: ignore) to prevent accidental
recreation of the container due to this."
type: str
version_added: 3.0.0
privileged:
description:
- Give extended privileges to the container.
- If O(container_default_behavior=compatibility), this option has a default of V(false).
type: bool
publish_all_ports:
description:
- Publish all ports to the host.
- Any specified port bindings from O(published_ports) will remain intact when V(true).
type: bool
version_added: 1.8.0
published_ports:
description:
- List of ports to publish from the container to the host.
- 'Use docker CLI syntax: V(8000), V(9000:8000), or V(0.0.0.0:9000:8000), where 8000 is a container port, 9000 is a
host port, and 0.0.0.0 is a host interface.'
- Port ranges can be used for source and destination ports. If two ranges with different lengths are specified, the
shorter range will be used. Since community.general 0.2.0, if the source port range has length 1, the port will not
be assigned to the first port of the destination range, but to a free port in that range. This is the same behavior
as for C(docker) command line utility.
- Bind addresses must be either IPv4 or IPv6 addresses. Hostnames are B(not) allowed. This is different from the C(docker)
command line utility. Use the P(community.general.dig#lookup) lookup to resolve hostnames.
- If O(networks) parameter is provided, will inspect each network to see if there exists a bridge network with optional
parameter C(com.docker.network.bridge.host_binding_ipv4). If such a network is found, then published ports where no
host IP address is specified will be bound to the host IP pointed to by C(com.docker.network.bridge.host_binding_ipv4).
Note that the first bridge network with a C(com.docker.network.bridge.host_binding_ipv4) value encountered in the
list of O(networks) is the one that will be used.
- The value V(all) was allowed in earlier versions of this module. Support for it was removed in community.docker 3.0.0.
Use the O(publish_all_ports) option instead.
type: list
elements: str
aliases:
- ports
pull:
description:
- If set to V(never), will never try to pull an image. Will fail if the image is not available on the Docker daemon.
- If set to V(missing) or V(false), only pull the image if it is not available on the Docker daemon. This is the default
behavior.
- If set to V(always) or V(true), always try to pull the latest version of the image.
- B(Note:) images are only pulled when specified by name. If the image is specified as a image ID (hash), it cannot
be pulled, and this option is ignored.
- B(Note:) the values V(never), V(missing), and V(always) are only available since community.docker 3.8.0. Earlier versions
only support V(true) and V(false).
type: raw
choices:
- never
- missing
- always
- true
- false
default: missing
pull_check_mode_behavior:
description:
- Allows to adjust the behavior when O(pull=always) or O(pull=true) in check mode.
- Since the Docker daemon does not expose any functionality to test whether a pull will result in a changed image, the
module by default acts like O(pull=always) only results in a change when the image is not present.
- If set to V(image_not_present) (default), only report changes in check mode when the image is not present.
- If set to V(always), always report changes in check mode.
type: str
default: image_not_present
choices:
- image_not_present
- always
version_added: 3.8.0
read_only:
description:
- Mount the container's root file system as read-only.
- If O(container_default_behavior=compatibility), this option has a default of V(false).
type: bool
recreate:
description:
- Use with present and started states to force the re-creation of an existing container.
type: bool
default: false
removal_wait_timeout:
description:
- When removing an existing container, the docker daemon API call exists after the container is scheduled for removal.
Removal usually is very fast, but it can happen that during high I/O load, removal can take longer. By default, the
module will wait until the container has been removed before trying to (re-)create it, however long this takes.
- By setting this option, the module will wait at most this many seconds for the container to be removed. If the container
is still in the removal phase after this many seconds, the module will fail.
type: float
restart:
description:
- Use with started state to force a matching container to be stopped and restarted.
type: bool
default: false
restart_policy:
description:
- Container restart policy.
- Place quotes around V(no) option.
type: str
choices:
- 'no'
- 'on-failure'
- 'always'
- 'unless-stopped'
restart_retries:
description:
- Use with restart policy to control maximum number of restart attempts.
type: int
runtime:
description:
- Runtime to use for the container.
type: str
shm_size:
description:
- Size of C(/dev/shm) in format C(<number>[<unit>]). Number is positive integer. Unit can be V(B) (byte), V(K) (kibibyte,
1024B), V(M) (mebibyte), V(G) (gibibyte), V(T) (tebibyte), or V(P) (pebibyte).
- Omitting the unit defaults to bytes. If you omit the size entirely, Docker daemon uses V(64M).
type: str
security_opts:
description:
- List of security options in the form of C("label:user:User").
type: list
elements: str
state:
description:
- V(absent) - A container matching the specified name will be stopped and removed. Use O(force_kill) to kill the container
rather than stopping it. Use O(keep_volumes) to retain anonymous volumes associated with the removed container.
- V(present) - Asserts the existence of a container matching the name and any provided configuration parameters. If
no container matches the name, a container will be created. If a container matches the name but the provided configuration
does not match, the container will be updated, if it can be. If it cannot be updated, it will be removed and re-created
with the requested config.
- V(started) - Asserts that the container is first V(present), and then if the container is not running moves it to
a running state. Use O(restart) to force a matching container to be stopped and restarted.
- V(healthy) - Asserts that the container is V(present) and V(started), and is actually healthy as well. This means
that the conditions defined in O(healthcheck) respectively in the image's C(HEALTHCHECK) (L(Docker reference for HEALTHCHECK,
https://docs.docker.com/reference/dockerfile/#healthcheck)) are satisfied. The time waited can be controlled with
O(healthy_wait_timeout). This state has been added in community.docker 3.11.0.
- V(stopped) - Asserts that the container is first V(present), and then if the container is running moves it to a stopped
state.
- 'To control what will be taken into account when comparing configuration, see the O(comparisons) option. To avoid
that the image version will be taken into account, you can also use the V(image: ignore) in the O(comparisons) option.'
- Use the O(recreate) option to always force re-creation of a matching container, even if it is running.
- If the container should be killed instead of stopped in case it needs to be stopped for recreation, or because O(state)
is V(stopped), please use the O(force_kill) option. Use O(keep_volumes) to retain anonymous volumes associated with
a removed container.
- Use O(keep_volumes) to retain anonymous volumes associated with a removed container.
type: str
default: started
choices:
- absent
- present
- healthy
- stopped
- started
stop_signal:
description:
- Override default signal used to stop the container.
type: str
healthy_wait_timeout:
description:
- When waiting for the container to become healthy if O(state=healthy), this option controls how long the module waits
until the container state becomes healthy.
- The timeout is specified in seconds. The default, V(300), is 5 minutes.
- Set this to 0 or a negative value to wait indefinitely. Note that depending on the container this can result in the
module not terminating.
default: 300
type: float
version_added: 3.11.0
stop_timeout:
description:
- Number of seconds to wait for the container to stop before sending C(SIGKILL). When the container is created by this
module, its C(StopTimeout) configuration will be set to this value.
- When the container is stopped, will be used as a timeout for stopping the container. In case the container has a custom
C(StopTimeout) configuration, the behavior depends on the version of the docker daemon. New versions of the docker
daemon will always use the container's configured C(StopTimeout) value if it has been configured.
type: int
storage_opts:
description:
- Storage driver options for this container as a key-value mapping.
type: dict
version_added: 1.3.0
tmpfs:
description:
- Mount a tmpfs directory.
type: list
elements: str
tty:
description:
- Allocate a pseudo-TTY.
- If O(container_default_behavior=compatibility), this option has a default of V(false).
type: bool
ulimits:
description:
- List of ulimit options. A ulimit is specified as V(nofile:262144:262144).
type: list
elements: str
sysctls:
description:
- Dictionary of key,value pairs.
type: dict
user:
description:
- Sets the username or UID used and optionally the groupname or GID for the specified command.
- Can be of the forms C(user), C(user:group), C(uid), C(uid:gid), C(user:gid) or C(uid:group).
type: str
uts:
description:
- Set the UTS namespace mode for the container.
type: str
volumes:
description:
- List of volumes to mount within the container.
- 'Use docker CLI-style syntax: C(/host:/container[:mode]).'
- Mount modes can be a comma-separated list of various modes such as V(ro), V(rw), V(consistent), V(delegated), V(cached),
V(rprivate), V(private), V(rshared), V(shared), V(rslave), V(slave), and V(nocopy). Note that the docker daemon might
not support all modes and combinations of such modes.
- SELinux hosts can additionally use V(z) or V(Z) to use a shared or private label for the volume.
- Note that Ansible 2.7 and earlier only supported one mode, which had to be one of V(ro), V(rw), V(z), and V(Z).
type: list
elements: str
volume_driver:
description:
- The container volume driver.
type: str
volumes_from:
description:
- List of container names or IDs to get volumes from.
type: list
elements: str
working_dir:
description:
- Path to the working directory.
type: str
author:
- "Cove Schneider (@cove)"
- "Joshua Conner (@joshuaconner)"
- "Pavel Antonov (@softzilla)"
- "Thomas Steinbach (@ThomasSteinbach)"
- "Philippe Jandot (@zfil)"
- "Daan Oosterveld (@dusdanig)"
- "Chris Houseknecht (@chouseknecht)"
- "Kassian Sun (@kassiansun)"
- "Felix Fontein (@felixfontein)"
requirements:
- "Docker API >= 1.25"
"""
EXAMPLES = r"""
---
- name: Create a data container
community.docker.docker_container:
name: mydata
image: busybox
volumes:
- /data
- name: Re-create a redis container
community.docker.docker_container:
name: myredis
image: redis
command: redis-server --appendonly yes
state: present
recreate: true
exposed_ports:
- 6379
volumes_from:
- mydata
- name: Restart a container
community.docker.docker_container:
name: myapplication
image: someuser/appimage
state: started
restart: true
links:
- "myredis:aliasedredis"
devices:
- "/dev/sda:/dev/xvda:rwm"
ports:
# Publish container port 9000 as host port 8080
- "8080:9000"
# Publish container UDP port 9001 as host port 8081 on interface 127.0.0.1
- "127.0.0.1:8081:9001/udp"
# Publish container port 9002 as a random host port
- "9002"
# Publish container port 9003 as a free host port in range 8000-8100
# (the host port will be selected by the Docker daemon)
- "8000-8100:9003"
# Publish container ports 9010-9020 to host ports 7000-7010
- "7000-7010:9010-9020"
env:
SECRET_KEY: "ssssh"
# Values which might be parsed as numbers, booleans or other types by the YAML parser need to be quoted
BOOLEAN_KEY: "yes"
- name: Container present
community.docker.docker_container:
name: mycontainer
state: present
image: ubuntu:14.04
command: sleep infinity
- name: Stop a container
community.docker.docker_container:
name: mycontainer
state: stopped
- name: Start 4 load-balanced containers
community.docker.docker_container:
name: "container{{ item }}"
recreate: true
image: someuser/anotherappimage
command: sleep 1d
with_sequence: count=4
- name: Remove container
community.docker.docker_container:
name: ohno
state: absent
- name: Syslogging output
community.docker.docker_container:
name: myservice
image: busybox
log_driver: syslog
log_options:
syslog-address: tcp://my-syslog-server:514
syslog-facility: daemon
# NOTE: in Docker 1.13+ the "syslog-tag" option was renamed to "tag" for
# older docker installs, use "syslog-tag" instead
tag: myservice
- name: Create db container and connect to network
community.docker.docker_container:
name: db_test
image: "postgres:latest"
networks:
- name: "{{ docker_network_name }}"
- name: Start container, connect to network and link
community.docker.docker_container:
name: sleeper
image: ubuntu:14.04
networks:
- name: TestingNet
ipv4_address: "172.16.1.100"
aliases:
- sleepyzz
links:
- db_test:db
- name: TestingNet2
- name: Start a container with a command
community.docker.docker_container:
name: sleepy
image: ubuntu:14.04
command: ["sleep", "infinity"]
- name: Add container to networks
community.docker.docker_container:
name: sleepy
networks:
- name: TestingNet
ipv4_address: 172.16.1.18
links:
- sleeper
- name: TestingNet2
ipv4_address: 172.16.10.20
- name: Update network with aliases
community.docker.docker_container:
name: sleepy
networks:
- name: TestingNet
aliases:
- sleepyz
- zzzz
- name: Remove container from one network
community.docker.docker_container:
name: sleepy
networks:
- name: TestingNet2
comparisons:
networks: strict
- name: Remove container from all networks
community.docker.docker_container:
name: sleepy
comparisons:
networks: strict
- name: Start a container and use an env file
community.docker.docker_container:
name: agent
image: jenkinsci/ssh-slave
env_file: /var/tmp/jenkins/agent.env
- name: Create a container with limited capabilities
community.docker.docker_container:
name: sleepy
image: ubuntu:16.04
command: sleep infinity
capabilities:
- sys_time
cap_drop:
- all
- name: Finer container restart/update control
community.docker.docker_container:
name: test
image: ubuntu:18.04
env:
arg1: "true"
arg2: "whatever"
volumes:
- /tmp:/tmp
comparisons:
image: ignore # do not restart containers with older versions of the image
env: strict # we want precisely this environment
volumes: allow_more_present # if there are more volumes, that's ok, as long as `/tmp:/tmp` is there
- name: Finer container restart/update control II
community.docker.docker_container:
name: test
image: ubuntu:18.04
env:
arg1: "true"
arg2: "whatever"
comparisons:
'*': ignore # by default, ignore *all* options (including image)
env: strict # except for environment variables; there, we want to be strict
- name: Start container with healthstatus
community.docker.docker_container:
name: nginx-proxy
image: nginx:1.13
state: started
healthcheck:
# Check if nginx server is healthy by curl'ing the server.
# If this fails or timeouts, the healthcheck fails.
test: ["CMD", "curl", "--fail", "http://nginx.host.com"]
interval: 1m30s
timeout: 10s
retries: 3
start_period: 30s
start_interval: 10s
- name: Remove healthcheck from container
community.docker.docker_container:
name: nginx-proxy
image: nginx:1.13
state: started
healthcheck:
# The "NONE" check needs to be specified
test: ["NONE"]
- name: Create a tmpfs with a size and mode
community.docker.docker_container:
name: tmpfs test
image: ubuntu:22.04
state: started
mounts:
- type: tmpfs
target: /cache
tmpfs_mode: "1700" # only readable to the owner
tmpfs_size: "16G"
- name: Start container with block device read limit
community.docker.docker_container:
name: test
image: ubuntu:18.04
state: started
device_read_bps:
# Limit read rate for /dev/sda to 20 mebibytes per second
- path: /dev/sda
rate: 20M
device_read_iops:
# Limit read rate for /dev/sdb to 300 IO per second
- path: /dev/sdb
rate: 300
- name: Start container with GPUs
community.docker.docker_container:
name: test
image: ubuntu:18.04
state: started
device_requests:
# Add some specific devices to this container
- device_ids:
- '0'
- 'GPU-3a23c669-1f69-c64e-cf85-44e9b07e7a2a'
# Add nVidia GPUs to this container
- driver: nvidia
count: -1 # this means we want all
capabilities:
# We have one OR condition: 'gpu' AND 'utility'
- - gpu
- utility
# See https://github.com/NVIDIA/nvidia-container-runtime#supported-driver-capabilities
# for a list of capabilities supported by the nvidia driver
- name: Start container with storage options
community.docker.docker_container:
name: test
image: ubuntu:18.04
state: started
storage_opts:
# Limit root filesystem to 12 MB - note that this requires special storage backends
# (https://fabianlee.org/2020/01/15/docker-use-overlay2-with-an-xfs-backing-filesystem-to-limit-rootfs-size/)
size: 12m
"""
RETURN = r"""
container:
description:
- Facts representing the current state of the container. Matches the docker inspection output.
- Empty if O(state=absent).
- If O(detach=false), will include C(Output) attribute containing any output from container run.
returned: success; or when O(state=started) and O(detach=false), and when waiting for the container result did not fail
type: dict
sample: '{ "AppArmorProfile": "", "Args": [], "Config": { "AttachStderr": false, "AttachStdin": false, "AttachStdout": false,
"Cmd": [ "/usr/bin/supervisord" ], "Domainname": "", "Entrypoint": null, "Env": [ "PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
], "ExposedPorts": { "443/tcp": {}, "80/tcp": {} }, "Hostname": "8e47bf643eb9", "Image": "lnmp_nginx:v1", "Labels": {},
"OnBuild": null, "OpenStdin": false, "StdinOnce": false, "Tty": false, "User": "", "Volumes": { "/tmp/lnmp/nginx-sites/logs/":
{} }, ... }'
status:
description:
- In case a container is started without detaching, this contains the exit code of the process in the container.
- Before community.docker 1.1.0, this was only returned when non-zero.
returned: when O(state=started) and O(detach=false), and when waiting for the container result did not fail
type: int
sample: 0
"""
from ansible_collections.community.docker.plugins.module_utils.module_container.docker_api import (
DockerAPIEngineDriver,
)
from ansible_collections.community.docker.plugins.module_utils.module_container.module import (
run_module,
)
def main():
engine_driver = DockerAPIEngineDriver()
run_module(engine_driver)
if __name__ == '__main__':
main()