zuul-jobs/roles/build-container-image/common.rst
vass 2cb9f249a8 Rename install-podman to ensure-podman for consistency
The old role will be kept and include ensure-podman for backwards-compatability.

Change-Id: I21cfdfef4a88f66f51d139abed04f70b3228a22d
2020-04-04 15:41:29 -04:00

148 lines
4.7 KiB
ReStructuredText

This is one of a collection of roles which are designed to work
together to build, upload, and promote container images in a gating
context:
* :zuul:role:`build-container-image`: Build the images.
.. note:: Build and upload roles are forthcoming.
The :zuul:role:`build-container-image` role is designed to be used in
`check` and `gate` pipelines and simply builds the images. It can be
used to verify that the build functions, or it can be followed by the
use of subsequent roles to upload the images to a registry.
They all accept the same input data, principally a list of
dictionaries representing the images to build. YAML anchors_ can be
used to supply the same data to all three jobs.
Use the :zuul:role:`ensure-docker` or :zuul:role:`ensure-podman`
role to install Docker or Podman before using these roles.
**Role Variables**
.. zuul:rolevar:: zuul_work_dir
:default: {{ zuul.project.src_dir }}
The project directory. Serves as the base for
:zuul:rolevar:`build-container-image.container_images.context`.
.. zuul:rolevar:: container_filename
The default container filename name to use. Serves as the base for
:zuul:rolevar:`build-container-image.container_images.container_filename`.
This allows a global overriding of the container filename name, for
example when building all images from different folders with
similarily named containerfiles.
If omitted, the default depends on the container command used.
Typically, this is ``Dockerfile`` for ``docker`` and
``Containerfile`` (with a fallback on ``Dockerfile``) for
``podman``.
.. zuul:rolevar:: container_command
:default: podman
The command to use when building the image (E.g., ``docker``).
.. zuul:rolevar:: container_registry_credentials
:type: dict
This is only required for the upload and promote roles. This is
expected to be a Zuul Secret in dictionary form. Each key is the
name of a registry, and its value a dictionary with information
about that registry.
Example:
.. code-block:: yaml
container_registry_credentials:
quay.io:
username: foo
password: bar
.. zuul:rolevar:: [registry name]
:type: dict
Information about a registry. The key is the registry name, and
its value a dict as follows:
.. zuul:rolevar:: username
The registry username.
.. zuul:rolevar:: password
The registry password.
.. zuul:rolevar:: repository
Optional; if supplied this is a regular expression which
restricts to what repositories the image may be uploaded. The
following example allows projects to upload images to
repositories within an organization based on their own names::
repository: "^myorgname/{{ zuul.project.short_name }}.*"
.. zuul:rolevar:: container_images
:type: list
A list of images to build. Each item in the list should have:
.. zuul:rolevar:: context
The build context; this should be a directory underneath
:zuul:rolevar:`build-container-image.zuul_work_dir`.
.. zuul:rolevar:: container_filename
The filename of the container file, present in the context
folder, used for building the image. Provide this if you are
using a non-standard filename for a specific image.
.. zuul:rolevar:: registry
The name of the target registry (E.g., ``quay.io``). Used by
the upload and promote roles.
.. zuul:rolevar:: repository
The name of the target repository in the registry for the image.
Supply this even if the image is not going to be uploaded (it
will be tagged with this in the local registry).
.. zuul:rolevar:: path
Optional: the directory that should be passed to the build
command. Useful for building images with a container file in
the context directory but a source repository elsewhere.
.. zuul:rolevar:: build_args
:type: list
Optional: a list of values to pass to the ``--build-arg``
parameter.
.. zuul:rolevar:: target
Optional: the target for a multi-stage build.
.. zuul:rolevar:: tags
:type: list
:default: ['latest']
A list of tags to be added to the image when promoted.
.. zuul:rolevar:: siblings
:type: list
:default: []
A list of sibling projects to be copied into
``{{zuul_work_dir}}/.zuul-siblings``. This can be useful to
collect multiple projects to be installed within the same Docker
context. A ``-build-arg`` called ``ZUUL_SIBLINGS`` will be
added with each sibling project. Note that projects here must
be listed in ``required-projects``.
.. _anchors: https://yaml.org/spec/1.2/spec.html#&%20anchor//