woodpecker-docker-buildx/docs.md
Lauris BH be7d7c0244 Implement option to add image labels and generate automatic labels (#19)
Fixes #16

Results into labels:
![attels](/attachments/3aa6641e-fe50-4e28-be97-64c0afe2c35a)

Co-authored-by: Lauris BH <lauris@nix.lv>
Reviewed-on: https://codeberg.org/woodpecker-plugins/plugin-docker-buildx/pulls/19
Reviewed-by: 6543 <6543@obermui.de>
Co-authored-by: Lauris BH <lafriks@noreply.codeberg.org>
Co-committed-by: Lauris BH <lafriks@noreply.codeberg.org>
2022-09-28 02:16:57 +02:00

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---
name: Docker Buildx
icon: https://woodpecker-ci.org/img/logo.svg
description: plugin to build multiarch Docker images with buildx
authors: Woodpecker Authors
tags: [docker, image, container, build]
containerImage: woodpeckerci/plugin-docker-buildx
containerImageUrl: https://hub.docker.com/r/woodpeckerci/plugin-docker-buildx
url: https://codeberg.org/woodpecker-plugins/plugin-docker-buildx
---
Woodpecker CI plugin to build multiarch Docker images with buildx. This plugin is a fork of [thegeeklab/drone-docker-buildx](https://github.com/thegeeklab/drone-docker-buildx/) which itself is a fork of [drone-plugins/drone-docker](https://github.com/drone-plugins/drone-docker). You can find the full documentation at You can find the full documentation at [woodpecker-plugins.codeberg.page](https://woodpecker-plugins.codeberg.page/plugins/drone-docker-buildx).
## Features
- Build without push
- Use custom registries
- Build based on existing tags when needed
It will automatically generate buildkit configuration to use custom CA certificate if following conditions are met:
- Setting `buildkit_config` is not set
- Custom `registry` value is provided
- File exists `/etc/docker/certs.d/<registry-value>/ca.crt`
> NB! To mount custom CA you can use Woodpecker CI runner configuration environment `WOODPECKER_BACKEND_DOCKER_VOLUMES` with value `/etc/ssl/certs:/etc/ssl/certs:ro,/etc/docker/certs.d:/etc/docker/certs.d:ro`. And have created file `/etc/docker/certs.d/<registry-value>/ca.crt` with CA certificate on runner server host.
## Settings
| Settings Name | Default | Description
| --------------------------| ----------------- | --------------------------------------------
| `dry-run` | `false` | disables docker push
| `repo` | *none* | sets repository name for the image
| `username` | *none* | sets username to authenticates with
| `password` | *none* | sets password / token to authenticates with
| `email` | *none* | sets email address to authenticates with
| `registry` | `https://index.docker.io/v1/` | sets docker registry to authenticate with
| `dockerfile` | `Dockerfile` | sets dockerfile to use for the image build
| `tag`/`tags` | @".tags" | sets repository tags to use for the image
| `platforms` | *none* | sets target platform for build
## Examples
```yml
publish-next-agent:
image: woodpeckerci/plugin-docker-buildx
secrets: [docker_username, docker_password]
settings:
repo: woodpeckerci/woodpecker-agent
dockerfile: docker/Dockerfile.agent.multiarch
platforms: windows/amd64,darwin/amd64,darwin/arm64,freebsd/amd64,linux/amd64,linux/arm64/v8
tag: next
when:
branch: ${CI_REPO_DEFAULT_BRANCH}
event: push
```
```yml
publish:
image: woodpeckerci/plugin-docker-buildx
settings:
platforms: linux/386,linux/amd64,linux/arm/v6,linux/arm64/v8,linux/ppc64le,linux/riscv64,linux/s390x
repo: codeberg.org/${CI_REPO_OWNER}/hello
registry: codeberg.org
tags: latest
username: ${CI_REPO_OWNER}
password:
from_secret: cb_token
```
```yml
docker-build:
image: woodpeckerci/plugin-docker-buildx
settings:
repo: codeberg.org/${CI_REPO_OWNER}/hello
registry: codeberg.org
dry_run: true
output: type=oci,dest=${CI_REPO_OWNER}-hello.tar
```
## Advanced Settings
| Settings Name | Default | Description
| --------------------------| ----------------- | --------------------------------------------
| `mirror` | *none* | sets a registry mirror to pull images
| `storage_driver` | *none* | sets the docker daemon storage driver
| `storage_path` | `/var/lib/docker` | sets the docker daemon storage path
| `bip` | *none* | allows the docker daemon to bride ip address
| `mtu` | *none* | sets docker daemon custom mtu setting
| `custom_dns` | *none* | sets custom docker daemon dns server
| `custom_dns_search` | *none* | sets custom docker daemon dns search domain
| `insecure` | `false` | allows the docker daemon to use insecure registries
| `ipv6` | `false` | enables docker daemon IPv6 support
| `experimental` | `false` | enables docker daemon experimental mode
| `debug` | `false` | enables verbose debug mode for the docker daemon
| `daemon_off` | `false` | disables the startup of the docker daemon
| `buildkit_config` | *none* | sets content of the docker [buildkit TOML config](https://github.com/moby/buildkit/blob/master/docs/buildkitd.toml.md)
| `context` | `.` | sets the path of the build context to use
| `default_tags`/`auto_tag` | `false` | generates tag names automatically based on git branch and git tag
| `default_suffix"`/`auto_tag_suffix`| *none* | generates tag names with the given suffix
| `label`/`labels` | *none* | sets labels to use for the image in format `<name>=<value>`
| `default_labels`/`auto_labels` | `true` | sets docker image labels based on git information
| `build_args` | *none* | sets custom build arguments for the build
| `build_args_from_env` | *none* | forwards environment variables as custom arguments to the build
| `quiet` | `false` | enables suppression of the build output
| `target` | *none* | sets the build target to use
| `cache_from` | *none* | sets images to consider as cache sources
| `pull_image` | `true` | enforces to pull base image at build time
| `compress` | `false` | enables compression of the build context using gzip
| `config` | *none* | sets content of the docker daemon json config
| `purge` | `true` | enables cleanup of the docker environment at the end of a build
| `no_cache` | `false` | disables the usage of cached intermediate containers
| `add_host` | *none* | sets additional host:ip mapping
| `output` | *none* | sets build output in format `type=<type>[,<key>=<value>]`