mirror of
https://github.com/ansible-collections/community.docker.git
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be000755fc
* Use to_text instead of to_native. * Remove no longer needed pylint ignores. * Remove another pylint ignore. * Remove no longer needed ignore. * Address redefined-outer-name. * Address consider-using-with.
647 lines
24 KiB
Python
647 lines
24 KiB
Python
#!/usr/bin/python
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#
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# Copyright (c) 2023, Felix Fontein <felix@fontein.de>
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# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
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# SPDX-License-Identifier: GPL-3.0-or-later
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from __future__ import annotations
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DOCUMENTATION = r"""
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module: docker_image_build
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short_description: Build Docker images using Docker buildx
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version_added: 3.6.0
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description:
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- This module allows you to build Docker images using Docker's buildx plugin (BuildKit).
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- Note that the module is B(not idempotent) in the sense of classical Ansible modules. The only idempotence check is whether
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the built image already exists. This check can be disabled with the O(rebuild) option.
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extends_documentation_fragment:
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- community.docker._docker.cli_documentation
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- community.docker._attributes
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- community.docker._attributes.actiongroup_docker
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attributes:
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check_mode:
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support: full
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diff_mode:
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support: none
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idempotent:
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support: partial
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details:
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- If O(rebuild=always) the module is not idempotent.
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options:
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name:
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description:
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- 'Image name. Name format will be one of: C(name), C(repository/name), C(registry_server:port/name). When pushing or
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pulling an image the name can optionally include the tag by appending C(:tag_name).'
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- Note that image IDs (hashes) and names with digest cannot be used.
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type: str
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required: true
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tag:
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description:
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- Tag for the image name O(name) that is to be tagged.
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- If O(name)'s format is C(name:tag), then the tag value from O(name) will take precedence.
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type: str
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default: latest
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path:
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description:
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- The path for the build environment.
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type: path
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required: true
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dockerfile:
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description:
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- Provide an alternate name for the Dockerfile to use when building an image.
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- This can also include a relative path (relative to O(path)).
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type: str
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cache_from:
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description:
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- List of image names to consider as cache source.
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type: list
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elements: str
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pull:
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description:
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- When building an image downloads any updates to the FROM image in Dockerfile.
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type: bool
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default: false
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network:
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description:
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- The network to use for C(RUN) build instructions.
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type: str
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nocache:
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description:
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- Do not use cache when building an image.
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type: bool
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default: false
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etc_hosts:
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description:
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- Extra hosts to add to C(/etc/hosts) in building containers, as a mapping of hostname to IP address.
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- Instead of an IP address, the special value V(host-gateway) can also be used, which resolves to the host's gateway
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IP and allows building containers to connect to services running on the host.
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type: dict
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args:
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description:
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- Provide a dictionary of C(key:value) build arguments that map to Dockerfile ARG directive.
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- Docker expects the value to be a string. For convenience any non-string values will be converted to strings.
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type: dict
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target:
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description:
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- When building an image specifies an intermediate build stage by name as a final stage for the resulting image.
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type: str
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platform:
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description:
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- Platforms in the format C(os[/arch[/variant]]).
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- Since community.docker 3.10.0 this can be a list of platforms, instead of just a single platform.
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type: list
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elements: str
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shm_size:
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description:
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- Size of C(/dev/shm) in format C(<number>[<unit>]). Number is positive integer. Unit can be V(B) (byte), V(K) (kibibyte,
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1024B), V(M) (mebibyte), V(G) (gibibyte), V(T) (tebibyte), or V(P) (pebibyte).
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- Omitting the unit defaults to bytes. If you omit the size entirely, Docker daemon uses V(64M).
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type: str
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labels:
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description:
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- Dictionary of key value pairs.
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type: dict
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rebuild:
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description:
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- Defines the behavior of the module if the image to build (as specified in O(name) and O(tag)) already exists.
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type: str
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choices:
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- never
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- always
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default: never
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secrets:
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description:
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- Secrets to expose to the build.
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type: list
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elements: dict
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version_added: 3.10.0
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suboptions:
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id:
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description:
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- The secret identifier.
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- The secret will be made available as a file in the container under C(/run/secrets/<id>).
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type: str
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required: true
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type:
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description:
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- Type of the secret.
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type: str
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choices:
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file:
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- Reads the secret from a file on the target.
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- The file must be specified in O(secrets[].src).
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env:
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- Reads the secret from an environment variable on the target.
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- The environment variable must be named in O(secrets[].env).
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- Note that this requires the Buildkit plugin to have version 0.6.0 or newer.
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value:
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- Provides the secret from a given value O(secrets[].value).
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- B(Note) that the secret will be passed as an environment variable to C(docker compose). Use another mean of
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transport if you consider this not safe enough.
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- Note that this requires the Buildkit plugin to have version 0.6.0 or newer.
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required: true
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src:
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description:
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- Source path of the secret.
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- Only supported and required for O(secrets[].type=file).
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type: path
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env:
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description:
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- Environment value of the secret.
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- Only supported and required for O(secrets[].type=env).
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type: str
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value:
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description:
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- Value of the secret.
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- B(Note) that the secret will be passed as an environment variable to C(docker compose). Use another mean of transport
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if you consider this not safe enough.
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- Only supported and required for O(secrets[].type=value).
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type: str
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outputs:
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description:
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- Output destinations.
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- You can provide a list of exporters to export the built image in various places. Note that not all exporters might
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be supported by the build driver used.
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- Note that depending on how this option is used, no image with name O(name) and tag O(tag) might be created, which
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can cause the basic idempotency this module offers to not work.
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- Providing an empty list to this option is equivalent to not specifying it at all. The default behavior is a single
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entry with O(outputs[].type=image).
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- B(Note) that since community.docker 4.2.0, an entry for O(name)/O(tag) is added if O(outputs) has at least one entry
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and no entry has type O(outputs[].type=image) and includes O(name)/O(tag) in O(outputs[].name). This is because the
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module would otherwise pass C(--tag name:image) to the buildx plugin, which for some reason overwrites all images
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in O(outputs) by the C(name:image) provided in O(name)/O(tag).
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type: list
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elements: dict
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version_added: 3.10.0
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suboptions:
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type:
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description:
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- The type of exporter to use.
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type: str
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choices:
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local:
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- This export type writes all result files to a directory on the client. The new files will be owned by the current
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user. On multi-platform builds, all results will be put in subdirectories by their platform.
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- The destination has to be provided in O(outputs[].dest).
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tar:
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- This export type export type writes all result files as a single tarball on the client. On multi-platform builds,
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all results will be put in subdirectories by their platform.
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- The destination has to be provided in O(outputs[].dest).
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oci:
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- This export type writes the result image or manifest list as an L(OCI image layout,
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https://github.com/opencontainers/image-spec/blob/v1.0.1/image-layout.md)
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tarball on the client.
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- The destination has to be provided in O(outputs[].dest).
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docker:
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- This export type writes the single-platform result image as a Docker image specification tarball on the client.
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Tarballs created by this exporter are also OCI compatible.
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- The destination can be provided in O(outputs[].dest). If not specified, the tar will be loaded automatically
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to the local image store.
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- The Docker context where to import the result can be provided in O(outputs[].context).
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image:
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- This exporter writes the build result as an image or a manifest list. When using this driver, the image will
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appear in C(docker images).
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- The image name can be provided in O(outputs[].name). If it is not provided, O(name) and O(tag) will be used.
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- Optionally, image can be automatically pushed to a registry by setting O(outputs[].push=true).
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required: true
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dest:
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description:
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- The destination path.
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- Required for O(outputs[].type=local), O(outputs[].type=tar), O(outputs[].type=oci).
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- Optional for O(outputs[].type=docker).
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type: path
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context:
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description:
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- Name for the Docker context where to import the result.
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- Optional for O(outputs[].type=docker).
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type: str
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name:
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description:
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- Name(s) under which the image is stored under.
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- If not provided, O(name) and O(tag) will be used.
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- Optional for O(outputs[].type=image).
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- This can be a list of strings since community.docker 4.2.0.
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type: list
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elements: str
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push:
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description:
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- Whether to push the built image to a registry.
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- Only used for O(outputs[].type=image).
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type: bool
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default: false
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requirements:
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- "Docker CLI with Docker buildx plugin"
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author:
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- Felix Fontein (@felixfontein)
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seealso:
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- module: community.docker.docker_image_push
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- module: community.docker.docker_image_tag
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"""
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EXAMPLES = r"""
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---
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- name: Build Python 3.12 image
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community.docker.docker_image_build:
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name: localhost/python/3.12:latest
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path: /home/user/images/python
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dockerfile: Dockerfile-3.12
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- name: Build multi-platform image
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community.docker.docker_image_build:
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name: multi-platform-image
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tag: "1.5.2"
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path: /home/user/images/multi-platform
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platform:
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- linux/amd64
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- linux/arm64/v8
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"""
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RETURN = r"""
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image:
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description: Image inspection results for the affected image.
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returned: success
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type: dict
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sample: {}
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command:
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description: The command executed.
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returned: success and for some failures
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type: list
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elements: str
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version_added: 4.2.0
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"""
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import base64
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import os
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import traceback
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import typing as t
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from ansible.module_utils.common.text.converters import to_text
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from ansible.module_utils.common.text.formatters import human_to_bytes
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from ansible_collections.community.docker.plugins.module_utils._api.utils.utils import (
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parse_repository_tag,
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)
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from ansible_collections.community.docker.plugins.module_utils._common_cli import (
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AnsibleModuleDockerClient,
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DockerException,
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)
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from ansible_collections.community.docker.plugins.module_utils._util import (
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DockerBaseClass,
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clean_dict_booleans_for_docker_api,
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is_image_name_id,
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is_valid_tag,
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)
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from ansible_collections.community.docker.plugins.module_utils._version import (
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LooseVersion,
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)
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if t.TYPE_CHECKING:
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from ansible.module_utils.basic import AnsibleModule
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def convert_to_bytes(
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value: str | None,
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module: AnsibleModule,
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name: str,
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unlimited_value: int | None = None,
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) -> int | None:
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if value is None:
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return value
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try:
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if unlimited_value is not None and value in ("unlimited", str(unlimited_value)):
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return unlimited_value
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return human_to_bytes(value)
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except ValueError as exc:
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module.fail_json(msg=f"Failed to convert {name} to bytes: {exc}")
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def dict_to_list(dictionary: dict[str, t.Any], concat: str = "=") -> list[str]:
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return [f"{k}{concat}{v}" for k, v in sorted(dictionary.items())]
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def _quote_csv(text: str) -> str:
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if text.strip() == text and all(i not in text for i in '",\r\n'):
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return text
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text = text.replace('"', '""')
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return f'"{text}"'
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class ImageBuilder(DockerBaseClass):
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def __init__(self, client: AnsibleModuleDockerClient) -> None:
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super().__init__()
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self.client = client
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self.check_mode = self.client.check_mode
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parameters = self.client.module.params
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self.cache_from = parameters["cache_from"]
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self.pull = parameters["pull"]
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self.network = parameters["network"]
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self.nocache = parameters["nocache"]
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self.etc_hosts = clean_dict_booleans_for_docker_api(parameters["etc_hosts"])
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self.args = clean_dict_booleans_for_docker_api(parameters["args"])
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self.target = parameters["target"]
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self.platform = parameters["platform"]
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self.shm_size = convert_to_bytes(
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parameters["shm_size"], self.client.module, "shm_size"
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)
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self.labels = clean_dict_booleans_for_docker_api(parameters["labels"])
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self.rebuild = parameters["rebuild"]
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self.secrets = parameters["secrets"]
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self.outputs = parameters["outputs"]
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buildx = self.client.get_client_plugin_info("buildx")
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if buildx is None:
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self.fail(
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f"Docker CLI {self.client.get_cli()} does not have the buildx plugin installed"
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)
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buildx_version = buildx["Version"].lstrip("v")
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if self.secrets:
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for secret in self.secrets:
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if secret["type"] in ("env", "value"):
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if LooseVersion(buildx_version) < LooseVersion("0.6.0"):
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self.fail(
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f"The Docker buildx plugin has version {buildx_version}, but 0.6.0 is needed for secrets of type=env and type=value"
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)
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if self.outputs and len(self.outputs) > 1:
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if LooseVersion(buildx_version) < LooseVersion("0.13.0"):
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self.fail(
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f"The Docker buildx plugin has version {buildx_version}, but 0.13.0 is needed to specify more than one output"
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)
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self.path = parameters["path"]
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if not os.path.isdir(self.path):
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self.fail(f'"{self.path}" is not an existing directory')
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self.dockerfile = parameters["dockerfile"]
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if self.dockerfile and not os.path.isfile(
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os.path.join(self.path, self.dockerfile)
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):
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self.fail(
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f'"{os.path.join(self.path, self.dockerfile)}" is not an existing file'
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)
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self.name = parameters["name"]
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self.tag = parameters["tag"]
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if not is_valid_tag(self.tag, allow_empty=True):
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self.fail(f'"{self.tag}" is not a valid docker tag')
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if is_image_name_id(self.name):
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self.fail("Image name must not be a digest")
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# If name contains a tag, it takes precedence over tag parameter.
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repo, repo_tag = parse_repository_tag(self.name)
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if repo_tag:
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self.name = repo
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self.tag = repo_tag
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if is_image_name_id(self.tag):
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self.fail("Image name must not contain a digest, but have a tag")
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if self.outputs:
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found = False
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name_tag = f"{self.name}:{self.tag}"
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for output in self.outputs:
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if output["type"] == "image":
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if not output["name"]:
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# Since we no longer pass --tag if --output is provided, we need to set this manually
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output["name"] = [name_tag]
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if output["name"] and name_tag in output["name"]:
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found = True
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if not found:
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self.outputs.append(
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{
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"type": "image",
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"name": [name_tag],
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"push": False,
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}
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)
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if LooseVersion(buildx_version) < LooseVersion("0.13.0"):
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self.fail(
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f"The output does not include an image with name {name_tag}, and the Docker"
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f" buildx plugin has version {buildx_version} which only supports one output."
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)
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def fail(self, msg: str, **kwargs: t.Any) -> t.NoReturn:
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self.client.fail(msg, **kwargs)
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def add_list_arg(self, args: list[str], option: str, values: list[str]) -> None:
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for value in values:
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args.extend([option, value])
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def add_args(self, args: list[str]) -> dict[str, t.Any]:
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environ_update = {}
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if not self.outputs:
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args.extend(["--tag", f"{self.name}:{self.tag}"])
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if self.dockerfile:
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args.extend(["--file", os.path.join(self.path, self.dockerfile)])
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if self.cache_from:
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self.add_list_arg(args, "--cache-from", self.cache_from)
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if self.pull:
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args.append("--pull")
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if self.network:
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args.extend(["--network", self.network])
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if self.nocache:
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args.append("--no-cache")
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if self.etc_hosts:
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self.add_list_arg(args, "--add-host", dict_to_list(self.etc_hosts, ":"))
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if self.args:
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self.add_list_arg(args, "--build-arg", dict_to_list(self.args))
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if self.target:
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args.extend(["--target", self.target])
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if self.platform:
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for platform in self.platform:
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args.extend(["--platform", platform])
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if self.shm_size:
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args.extend(["--shm-size", str(self.shm_size)])
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if self.labels:
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self.add_list_arg(args, "--label", dict_to_list(self.labels))
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if self.secrets:
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random_prefix = None
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for index, secret in enumerate(self.secrets):
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sid = secret["id"]
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if secret["type"] == "file":
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src = secret["src"]
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args.extend(["--secret", f"id={sid},type=file,src={src}"])
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if secret["type"] == "env":
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env = secret["src"]
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args.extend(["--secret", f"id={sid},type=env,env={env}"])
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if secret["type"] == "value":
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# We pass values on using environment variables. The user has been warned in the documentation
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# that they should only use this mechanism when being comfortable with it.
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if random_prefix is None:
|
|
# Use /dev/urandom to generate some entropy to make the environment variable's name unguessable
|
|
random_prefix = (
|
|
base64.b64encode(os.urandom(16))
|
|
.decode("utf-8")
|
|
.replace("=", "")
|
|
)
|
|
env_name = (
|
|
f"ANSIBLE_DOCKER_COMPOSE_ENV_SECRET_{random_prefix}_{index}"
|
|
)
|
|
environ_update[env_name] = secret["value"]
|
|
args.extend(["--secret", f"id={sid},type=env,env={env_name}"])
|
|
if self.outputs:
|
|
for output in self.outputs:
|
|
subargs = []
|
|
if output["type"] == "local":
|
|
dest = output["dest"]
|
|
subargs.extend(["type=local", f"dest={dest}"])
|
|
if output["type"] == "tar":
|
|
dest = output["dest"]
|
|
subargs.extend(["type=tar", f"dest={dest}"])
|
|
if output["type"] == "oci":
|
|
dest = output["dest"]
|
|
subargs.extend(["type=oci", f"dest={dest}"])
|
|
if output["type"] == "docker":
|
|
subargs.append("type=docker")
|
|
dest = output["dest"]
|
|
if output["dest"] is not None:
|
|
subargs.append(f"dest={dest}")
|
|
if output["context"] is not None:
|
|
context = output["context"]
|
|
subargs.append(f"context={context}")
|
|
if output["type"] == "image":
|
|
subargs.append("type=image")
|
|
if output["name"] is not None:
|
|
name = ",".join(output["name"])
|
|
subargs.append(f"name={name}")
|
|
if output["push"]:
|
|
subargs.append("push=true")
|
|
if subargs:
|
|
args.extend(
|
|
["--output", ",".join(_quote_csv(subarg) for subarg in subargs)]
|
|
)
|
|
return environ_update
|
|
|
|
def build_image(self) -> dict[str, t.Any]:
|
|
image = self.client.find_image(self.name, self.tag)
|
|
results: dict[str, t.Any] = {
|
|
"changed": False,
|
|
"actions": [],
|
|
"image": image or {},
|
|
}
|
|
|
|
if image:
|
|
if self.rebuild == "never":
|
|
return results
|
|
|
|
results["changed"] = True
|
|
if not self.check_mode:
|
|
args = ["buildx", "build", "--progress", "plain"]
|
|
environ_update = self.add_args(args)
|
|
args.extend(["--", self.path])
|
|
rc, stdout, stderr = self.client.call_cli(
|
|
*args, environ_update=environ_update
|
|
)
|
|
if rc != 0:
|
|
self.fail(
|
|
f"Building {self.name}:{self.tag} failed",
|
|
stdout=to_text(stdout),
|
|
stderr=to_text(stderr),
|
|
command=args,
|
|
)
|
|
results["stdout"] = to_text(stdout)
|
|
results["stderr"] = to_text(stderr)
|
|
results["image"] = self.client.find_image(self.name, self.tag) or {}
|
|
results["command"] = args
|
|
|
|
return results
|
|
|
|
|
|
def main() -> None:
|
|
argument_spec = {
|
|
"name": {"type": "str", "required": True},
|
|
"tag": {"type": "str", "default": "latest"},
|
|
"path": {"type": "path", "required": True},
|
|
"dockerfile": {"type": "str"},
|
|
"cache_from": {"type": "list", "elements": "str"},
|
|
"pull": {"type": "bool", "default": False},
|
|
"network": {"type": "str"},
|
|
"nocache": {"type": "bool", "default": False},
|
|
"etc_hosts": {"type": "dict"},
|
|
"args": {"type": "dict"},
|
|
"target": {"type": "str"},
|
|
"platform": {"type": "list", "elements": "str"},
|
|
"shm_size": {"type": "str"},
|
|
"labels": {"type": "dict"},
|
|
"rebuild": {"type": "str", "choices": ["never", "always"], "default": "never"},
|
|
"secrets": {
|
|
"type": "list",
|
|
"elements": "dict",
|
|
"options": {
|
|
"id": {"type": "str", "required": True},
|
|
"type": {
|
|
"type": "str",
|
|
"choices": ["file", "env", "value"],
|
|
"required": True,
|
|
},
|
|
"src": {"type": "path"},
|
|
"env": {"type": "str"},
|
|
"value": {"type": "str", "no_log": True},
|
|
},
|
|
"required_if": [
|
|
("type", "file", ["src"]),
|
|
("type", "env", ["env"]),
|
|
("type", "value", ["value"]),
|
|
],
|
|
"mutually_exclusive": [
|
|
("src", "env", "value"),
|
|
],
|
|
"no_log": False,
|
|
},
|
|
"outputs": {
|
|
"type": "list",
|
|
"elements": "dict",
|
|
"options": {
|
|
"type": {
|
|
"type": "str",
|
|
"choices": ["local", "tar", "oci", "docker", "image"],
|
|
"required": True,
|
|
},
|
|
"dest": {"type": "path"},
|
|
"context": {"type": "str"},
|
|
"name": {"type": "list", "elements": "str"},
|
|
"push": {"type": "bool", "default": False},
|
|
},
|
|
"required_if": [
|
|
("type", "local", ["dest"]),
|
|
("type", "tar", ["dest"]),
|
|
("type", "oci", ["dest"]),
|
|
],
|
|
"mutually_exclusive": [
|
|
("dest", "name"),
|
|
("dest", "push"),
|
|
("context", "name"),
|
|
("context", "push"),
|
|
],
|
|
},
|
|
}
|
|
|
|
client = AnsibleModuleDockerClient(
|
|
argument_spec=argument_spec,
|
|
supports_check_mode=True,
|
|
needs_api_version=False,
|
|
)
|
|
|
|
try:
|
|
results = ImageBuilder(client).build_image()
|
|
client.module.exit_json(**results)
|
|
except DockerException as e:
|
|
client.fail(
|
|
f"An unexpected Docker error occurred: {e}",
|
|
exception=traceback.format_exc(),
|
|
)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main()
|