community.docker.docker_container_copy_into module – Copy a file into a Docker container

Note

This module is part of the community.docker collection (version 3.4.7).

You might already have this collection installed if you are using the ansible package. It is not included in ansible-core. To check whether it is installed, run ansible-galaxy collection list.

To install it, use: ansible-galaxy collection install community.docker. You need further requirements to be able to use this module, see Requirements for details.

To use it in a playbook, specify: community.docker.docker_container_copy_into.

New in community.docker 3.4.0

Synopsis

  • Copy a file into a Docker container.

  • Similar to docker cp.

  • To copy files in a non-running container, you must provide the owner_id and group_id options. This is also necessary if the container does not contain a /bin/sh shell with an id tool.

Note

This module has a corresponding action plugin.

Requirements

The below requirements are needed on the host that executes this module.

  • Docker API >= 1.25

  • backports.ssl_match_hostname (when using TLS on Python 2)

  • paramiko (when using SSH with use_ssh_client=false)

  • pyOpenSSL (when using TLS)

  • pywin32 (when using named pipes on Windows 32)

  • requests

Parameters

Parameter

Comments

api_version

aliases: docker_api_version

string

The version of the Docker API running on the Docker Host.

Defaults to the latest version of the API supported by this collection and the docker daemon.

If the value is not specified in the task, the value of environment variable DOCKER_API_VERSION will be used instead. If the environment variable is not set, the default value will be used.

Default: "auto"

ca_cert

aliases: tls_ca_cert, cacert_path

path

Use a CA certificate when performing server verification by providing the path to a CA certificate file.

If the value is not specified in the task and the environment variable DOCKER_CERT_PATH is set, the file ca.pem from the directory specified in the environment variable DOCKER_CERT_PATH will be used.

client_cert

aliases: tls_client_cert, cert_path

path

Path to the client’s TLS certificate file.

If the value is not specified in the task and the environment variable DOCKER_CERT_PATH is set, the file cert.pem from the directory specified in the environment variable DOCKER_CERT_PATH will be used.

client_key

aliases: tls_client_key, key_path

path

Path to the client’s TLS key file.

If the value is not specified in the task and the environment variable DOCKER_CERT_PATH is set, the file key.pem from the directory specified in the environment variable DOCKER_CERT_PATH will be used.

container

string / required

The name of the container to copy files to.

container_path

string / required

Path to a file inside the Docker container.

Must be an absolute path.

content

string

The file’s content.

If you plan to provide binary data, provide it pre-encoded to base64, and set content_is_b64=true.

Mutually exclusive with path. One of content and path is required.

content_is_b64

boolean

If set to true, the content in content is assumed to be Base64 encoded and will be decoded before being used.

To use binary content, it is better to keep it Base64 encoded and let it be decoded by this option. Otherwise you risk the data to be interpreted as UTF-8 and corrupted.

Choices:

  • false ← (default)

  • true

debug

boolean

Debug mode

Choices:

  • false ← (default)

  • true

docker_host

aliases: docker_url

string

The URL or Unix socket path used to connect to the Docker API. To connect to a remote host, provide the TCP connection string. For example, tcp://192.0.2.23:2376. If TLS is used to encrypt the connection, the module will automatically replace tcp in the connection URL with https.

If the value is not specified in the task, the value of environment variable DOCKER_HOST will be used instead. If the environment variable is not set, the default value will be used.

Default: "unix://var/run/docker.sock"

follow

boolean

This flag indicates that filesystem links in the Docker container, if they exist, should be followed.

Choices:

  • false ← (default)

  • true

force

boolean

If set to true, force writing the file (without performing any idempotency checks).

If set to false, only write the file if it does not exist on the target. If a filesystem object exists at the destination, the module will not do any change.

If this option is not specified, the module will be idempotent. To verify idempotency, it will try to get information on the filesystem object in the container, and if everything seems to match will download the file from the container to compare it to the file to upload.

Choices:

  • false

  • true

group_id

integer

The group ID to use when writing the file to disk.

If provided, owner_id must also be provided.

If not provided, the module will try to determine the user and group ID for the current user in the container. This will only work if /bin/sh is present in the container and the id binary or shell builtin is available. Also the container must be running.

local_follow

boolean

This flag indicates that filesystem links in the source tree (where the module is executed), if they exist, should be followed.

Choices:

  • false

  • true ← (default)

mode

integer

The file mode to use when writing the file to disk.

Will use the file’s mode from the source system if this option is not provided.

owner_id

integer

The owner ID to use when writing the file to disk.

If provided, group_id must also be provided.

If not provided, the module will try to determine the user and group ID for the current user in the container. This will only work if /bin/sh is present in the container and the id binary or shell builtin is available. Also the container must be running.

path

path

Path to a file on the managed node.

Mutually exclusive with content. One of content and path is required.

ssl_version

string

Provide a valid SSL version number. Default value determined by ssl.py module.

If the value is not specified in the task, the value of environment variable DOCKER_SSL_VERSION will be used instead.

timeout

integer

The maximum amount of time in seconds to wait on a response from the API.

If the value is not specified in the task, the value of environment variable DOCKER_TIMEOUT will be used instead. If the environment variable is not set, the default value will be used.

Default: 60

tls

boolean

Secure the connection to the API by using TLS without verifying the authenticity of the Docker host server. Note that if validate_certs is set to true as well, it will take precedence.

If the value is not specified in the task, the value of environment variable DOCKER_TLS will be used instead. If the environment variable is not set, the default value will be used.

Choices:

  • false ← (default)

  • true

tls_hostname

string

When verifying the authenticity of the Docker Host server, provide the expected name of the server.

If the value is not specified in the task, the value of environment variable DOCKER_TLS_HOSTNAME will be used instead. If the environment variable is not set, the default value will be used.

Note that this option had a default value localhost in older versions. It was removed in community.docker 3.0.0.

use_ssh_client

boolean

added in community.docker 1.5.0

For SSH transports, use the ssh CLI tool instead of paramiko.

Choices:

  • false ← (default)

  • true

validate_certs

aliases: tls_verify

boolean

Secure the connection to the API by using TLS and verifying the authenticity of the Docker host server.

If the value is not specified in the task, the value of environment variable DOCKER_TLS_VERIFY will be used instead. If the environment variable is not set, the default value will be used.

Choices:

  • false ← (default)

  • true

Attributes

Attribute

Support

Description

action_group

Action groups: community.docker.docker, docker

Use group/docker or group/community.docker.docker in module_defaults to set defaults for this module.

check_mode

Support: full

Can run in check_mode and return changed status prediction without modifying target.

diff_mode

Support: full

Additional data will need to be transferred to compute diffs.

The module uses the MAX_FILE_SIZE_FOR_DIFF ansible-core configuration to determine for how large files diffs should be computed.

Will return details on what has changed (or possibly needs changing in check_mode), when in diff mode.

Notes

Note

  • Connect to the Docker daemon by providing parameters with each task or by defining environment variables. You can define DOCKER_HOST, DOCKER_TLS_HOSTNAME, DOCKER_API_VERSION, DOCKER_CERT_PATH, DOCKER_SSL_VERSION, DOCKER_TLS, DOCKER_TLS_VERIFY and DOCKER_TIMEOUT. If you are using docker machine, run the script shipped with the product that sets up the environment. It will set these variables for you. See https://docs.docker.com/machine/reference/env/ for more details.

  • This module does not use the Docker SDK for Python to communicate with the Docker daemon. It uses code derived from the Docker SDK or Python that is included in this collection.

Examples

- name: Copy a file into the container
  community.docker.docker_container_copy_into:
    container: mydata
    path: /home/user/data.txt
    container_path: /data/input.txt

- name: Copy a file into the container with owner, group, and mode set
  community.docker.docker_container_copy_into:
    container: mydata
    path: /home/user/bin/runme.o
    container_path: /bin/runme
    owner: 0  # root
    group: 0  # root
    mode: 0o755  # readable and executable by all users, writable by root

Return Values

Common return values are documented here, the following are the fields unique to this module:

Key

Description

container_path

string

The actual path in the container.

Can only be different from container_path when follow=true.

Returned: success

Authors

  • Felix Fontein (@felixfontein)