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79
README.md
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@ -6,9 +6,10 @@
## About ## About
GitHub Action to build and push Docker images with [Buildx](https://github.com/docker/buildx) with full support of the GitHub Action to build and push Docker images with [Buildx](https://github.com/docker/buildx)
features provided by [Moby BuildKit](https://github.com/moby/buildkit) builder toolkit. This includes multi-platform with full support of the features provided by [Moby BuildKit](https://github.com/moby/buildkit)
build, secrets, remote cache, etc. and different builder deployment/namespacing options. builder toolkit. This includes multi-platform build, secrets, remote cache, etc.
and different builder deployment/namespacing options.
![Screenshot](.github/build-push-action.png) ![Screenshot](.github/build-push-action.png)
@ -35,18 +36,21 @@ ___
* [inputs](#inputs) * [inputs](#inputs)
* [outputs](#outputs) * [outputs](#outputs)
* [Troubleshooting](#troubleshooting) * [Troubleshooting](#troubleshooting)
* [Keep up-to-date with GitHub Dependabot](#keep-up-to-date-with-github-dependabot) * [Contributing](#contributing)
## Usage ## Usage
In the examples below we are also using 3 other actions: In the examples below we are also using 3 other actions:
* [`setup-buildx`](https://github.com/docker/setup-buildx-action) action will create and boot a builder using by * [`setup-buildx`](https://github.com/docker/setup-buildx-action) action will
default the `docker-container` [builder driver](https://github.com/docker/buildx/blob/master/docs/reference/buildx_create.md#driver). create and boot a builder using by default the [`docker-container` driver](https://docs.docker.com/build/building/drivers/docker-container/).
This is **not required but recommended** using it to be able to build multi-platform images, export cache, etc. This is **not required but recommended** using it to be able to build
* [`setup-qemu`](https://github.com/docker/setup-qemu-action) action can be useful if you want multi-platform images, export cache, etc.
to add emulation support with QEMU to be able to build against more platforms. * [`setup-qemu`](https://github.com/docker/setup-qemu-action) action can be
* [`login`](https://github.com/docker/login-action) action will take care to log in against a Docker registry. useful if you want to add emulation support with QEMU to be able to build
against more platforms.
* [`login`](https://github.com/docker/login-action) action will take care to
log in against a Docker registry.
### Git context ### Git context
@ -54,7 +58,7 @@ By default, this action uses the [Git context](https://docs.docker.com/engine/re
so you don't need to use the [`actions/checkout`](https://github.com/actions/checkout/) so you don't need to use the [`actions/checkout`](https://github.com/actions/checkout/)
action to check out the repository as this will be done directly by [BuildKit](https://github.com/moby/buildkit). action to check out the repository as this will be done directly by [BuildKit](https://github.com/moby/buildkit).
The git reference will be based on the [event that triggered your workflow](https://docs.github.com/en/actions/reference/events-that-trigger-workflows) The git reference will be based on the [event that triggered your workflow](https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows)
and will result in the following context: `https://github.com/<owner>/<repo>.git#<ref>`. and will result in the following context: `https://github.com/<owner>/<repo>.git#<ref>`.
```yaml ```yaml
@ -123,10 +127,10 @@ to the default Git context:
> Buildkit 0.8.2 at the moment, it does not support this feature. It's therefore > Buildkit 0.8.2 at the moment, it does not support this feature. It's therefore
> required to use the `setup-buildx-action` at the moment. > required to use the `setup-buildx-action` at the moment.
Building from the current repository automatically uses the [GitHub Token](https://help.github.com/en/actions/configuring-and-managing-workflows/authenticating-with-the-github_token), Building from the current repository automatically uses the [GitHub Token](https://docs.github.com/en/actions/security-guides/automatic-token-authentication),
so it does not need to be passed. If you want to authenticate against another so it does not need to be passed. If you want to authenticate against another
private repository, you have to use a [secret](docs/advanced/secrets.md) named private repository, you have to use a [secret](docs/advanced/secrets.md) named
`GIT_AUTH_TOKEN` to be able to authenticate against it with buildx: `GIT_AUTH_TOKEN` to be able to authenticate against it with Buildx:
```yaml ```yaml
- -
@ -212,33 +216,33 @@ Following inputs can be used as `step.with` keys
> ``` > ```
| Name | Type | Description | | Name | Type | Description |
|--------------------|----------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| |--------------------|----------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `add-hosts` | List/CSV | List of [customs host-to-IP mapping](https://docs.docker.com/engine/reference/commandline/build/#add-entries-to-container-hosts-file---add-host) (e.g., `docker:10.180.0.1`) | | `add-hosts` | List/CSV | List of [customs host-to-IP mapping](https://docs.docker.com/engine/reference/commandline/build/#add-entries-to-container-hosts-file---add-host) (e.g., `docker:10.180.0.1`) |
| `allow` | List/CSV | List of [extra privileged entitlement](https://github.com/docker/buildx/blob/master/docs/reference/buildx_build.md#allow) (e.g., `network.host,security.insecure`) | | `allow` | List/CSV | List of [extra privileged entitlement](https://docs.docker.com/engine/reference/commandline/buildx_build/#allow) (e.g., `network.host,security.insecure`) |
| `builder` | String | Builder instance (see [setup-buildx](https://github.com/docker/setup-buildx-action) action) | | `builder` | String | Builder instance (see [setup-buildx](https://github.com/docker/setup-buildx-action) action) |
| `build-args` | List | List of [build-time variables](https://github.com/docker/buildx/blob/master/docs/reference/buildx_build.md#build-arg) | | `build-args` | List | List of [build-time variables](https://docs.docker.com/engine/reference/commandline/buildx_build/#build-arg) |
| `build-contexts` | List | List of additional [build contexts](https://github.com/docker/buildx/blob/master/docs/reference/buildx_build.md#build-context) (e.g., `name=path`) | | `build-contexts` | List | List of additional [build contexts](https://docs.docker.com/engine/reference/commandline/buildx_build/#build-context) (e.g., `name=path`) |
| `cache-from` | List | List of [external cache sources](https://github.com/docker/buildx/blob/master/docs/reference/buildx_build.md#cache-from) (e.g., `type=local,src=path/to/dir`) | | `cache-from` | List | List of [external cache sources](https://docs.docker.com/engine/reference/commandline/buildx_build/#cache-from) (e.g., `type=local,src=path/to/dir`) |
| `cache-to` | List | List of [cache export destinations](https://github.com/docker/buildx/blob/master/docs/reference/buildx_build.md#cache-to) (e.g., `type=local,dest=path/to/dir`) | | `cache-to` | List | List of [cache export destinations](https://docs.docker.com/engine/reference/commandline/buildx_build/#cache-to) (e.g., `type=local,dest=path/to/dir`) |
| `cgroup-parent` | String | Optional [parent cgroup](https://docs.docker.com/engine/reference/commandline/build/#use-a-custom-parent-cgroup---cgroup-parent) for the container used in the build | | `cgroup-parent` | String | Optional [parent cgroup](https://docs.docker.com/engine/reference/commandline/build/#use-a-custom-parent-cgroup---cgroup-parent) for the container used in the build |
| `context` | String | Build's context is the set of files located in the specified [`PATH` or `URL`](https://docs.docker.com/engine/reference/commandline/build/) (default [Git context](#git-context)) | | `context` | String | Build's context is the set of files located in the specified [`PATH` or `URL`](https://docs.docker.com/engine/reference/commandline/build/) (default [Git context](#git-context)) |
| `file` | String | Path to the Dockerfile. (default `{context}/Dockerfile`) | | `file` | String | Path to the Dockerfile. (default `{context}/Dockerfile`) |
| `labels` | List | List of metadata for an image | | `labels` | List | List of metadata for an image |
| `load` | Bool | [Load](https://github.com/docker/buildx/blob/master/docs/reference/buildx_build.md#load) is a shorthand for `--output=type=docker` (default `false`) | | `load` | Bool | [Load](https://docs.docker.com/engine/reference/commandline/buildx_build/#load) is a shorthand for `--output=type=docker` (default `false`) |
| `network` | String | Set the networking mode for the `RUN` instructions during build | | `network` | String | Set the networking mode for the `RUN` instructions during build |
| `no-cache` | Bool | Do not use cache when building the image (default `false`) | | `no-cache` | Bool | Do not use cache when building the image (default `false`) |
| `no-cache-filters` | List/CSV | Do not cache specified stages | | `no-cache-filters` | List/CSV | Do not cache specified stages |
| `outputs`¹ | List | List of [output destinations](https://github.com/docker/buildx/blob/master/docs/reference/buildx_build.md#output) (format: `type=local,dest=path`) | | `outputs`¹ | List | List of [output destinations](https://docs.docker.com/engine/reference/commandline/buildx_build/#output) (format: `type=local,dest=path`) |
| `platforms` | List/CSV | List of [target platforms](https://github.com/docker/buildx/blob/master/docs/reference/buildx_build.md#platform) for build | | `platforms` | List/CSV | List of [target platforms](https://docs.docker.com/engine/reference/commandline/buildx_build/#platform) for build |
| `pull` | Bool | Always attempt to pull all referenced images (default `false`) | | `pull` | Bool | Always attempt to pull all referenced images (default `false`) |
| `push` | Bool | [Push](https://github.com/docker/buildx/blob/master/docs/reference/buildx_build.md#push) is a shorthand for `--output=type=registry` (default `false`) | | `push` | Bool | [Push](https://docs.docker.com/engine/reference/commandline/buildx_build/#push) is a shorthand for `--output=type=registry` (default `false`) |
| `secrets` | List | List of [secrets](https://github.com/docker/buildx/blob/master/docs/reference/buildx_build.md#secret) to expose to the build (e.g., `key=string`, `GIT_AUTH_TOKEN=mytoken`) | | `secrets` | List | List of [secrets](https://docs.docker.com/engine/reference/commandline/buildx_build/#secret) to expose to the build (e.g., `key=string`, `GIT_AUTH_TOKEN=mytoken`) |
| `secret-files` | List | List of [secret files](https://github.com/docker/buildx/blob/master/docs/reference/buildx_build.md#secret) to expose to the build (e.g., `key=filename`, `MY_SECRET=./secret.txt`) | | `secret-files` | List | List of [secret files](https://docs.docker.com/engine/reference/commandline/buildx_build/#secret) to expose to the build (e.g., `key=filename`, `MY_SECRET=./secret.txt`) |
| `shm-size` | String | Size of [`/dev/shm`](https://github.com/docker/buildx/blob/master/docs/reference/buildx_build.md#-size-of-devshm---shm-size) (e.g., `2g`) | | `shm-size` | String | Size of [`/dev/shm`](https://docs.docker.com/engine/reference/commandline/buildx_build/#shm-size) (e.g., `2g`) |
| `ssh` | List | List of [SSH agent socket or keys](https://github.com/docker/buildx/blob/master/docs/reference/buildx_build.md#ssh) to expose to the build | | `ssh` | List | List of [SSH agent socket or keys](https://docs.docker.com/engine/reference/commandline/buildx_build/#ssh) to expose to the build |
| `tags` | List/CSV | List of tags | | `tags` | List/CSV | List of tags |
| `target` | String | Sets the target stage to build | | `target` | String | Sets the target stage to build |
| `ulimit` | List | [Ulimit](https://github.com/docker/buildx/blob/master/docs/reference/buildx_build.md#-set-ulimits---ulimit) options (e.g., `nofile=1024:1024`) | | `ulimit` | List | [Ulimit](https://docs.docker.com/engine/reference/commandline/buildx_build/#ulimit) options (e.g., `nofile=1024:1024`) |
| `github-token` | String | GitHub Token used to authenticate against a repository for [Git context](#git-context) (default `${{ github.token }}`) | | `github-token` | String | GitHub Token used to authenticate against a repository for [Git context](#git-context) (default `${{ github.token }}`) |
> **Note** > **Note**
@ -250,7 +254,7 @@ Following inputs can be used as `step.with` keys
Following outputs are available Following outputs are available
| Name | Type | Description | | Name | Type | Description |
|------------|---------|-----------------------------------------| |------------|---------|-----------------------|
| `imageid` | String | Image ID | | `imageid` | String | Image ID |
| `digest` | String | Image digest | | `digest` | String | Image digest |
| `metadata` | JSON | Build result metadata | | `metadata` | JSON | Build result metadata |
@ -259,18 +263,7 @@ Following outputs are available
See [TROUBLESHOOTING.md](TROUBLESHOOTING.md) See [TROUBLESHOOTING.md](TROUBLESHOOTING.md)
## Keep up-to-date with GitHub Dependabot ## Contributing
Since [Dependabot](https://docs.github.com/en/github/administering-a-repository/keeping-your-actions-up-to-date-with-github-dependabot) Want to contribute? Awesome! You can find information about contributing to
has [native GitHub Actions support](https://docs.github.com/en/github/administering-a-repository/configuration-options-for-dependency-updates#package-ecosystem), this project in the [CONTRIBUTING.md](/.github/CONTRIBUTING.md)
to enable it on your GitHub repo all you need to do is add the `.github/dependabot.yml` file:
```yaml
version: 2
updates:
# Maintain dependencies for GitHub Actions
- package-ecosystem: "github-actions"
directory: "/"
schedule:
interval: "daily"
```

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TROUBLESHOOTING.md
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@ -16,7 +16,7 @@ While pushing to a registry, you may encounter these kinds of issues:
* `unexpected response: 401 Unauthorized` * `unexpected response: 401 Unauthorized`
These issues are not directly related to this action but are rather linked to These issues are not directly related to this action but are rather linked to
[buildx](https://github.com/docker/buildx), [buildkit](https://github.com/moby/buildkit), [Buildx](https://github.com/docker/buildx), [BuildKit](https://github.com/moby/buildkit),
[containerd](https://github.com/containerd/containerd) or the registry on which [containerd](https://github.com/containerd/containerd) or the registry on which
you're pushing your image. The quality of error message depends on the registry you're pushing your image. The quality of error message depends on the registry
and are usually not very informative. and are usually not very informative.
@ -29,7 +29,7 @@ action step and attach BuildKit container logs to your issue.
### With containerd ### With containerd
Next you can test pushing with [containerd action](https://github.com/crazy-max/ghaction-setup-containerd) Next you can test pushing with [containerd action](https://github.com/crazy-max/ghaction-setup-containerd)
using the following workflow. If it works then open an issue on [buildkit](https://github.com/moby/buildkit) using the following workflow. If it works then open an issue on [BuildKit](https://github.com/moby/buildkit)
repository. repository.
```yaml ```yaml

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dev.Dockerfile
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@ -1,4 +1,4 @@
# syntax=docker/dockerfile:1.4 # syntax=docker/dockerfile:1
ARG NODE_VERSION=16 ARG NODE_VERSION=16
ARG DOCKER_VERSION=20.10.13 ARG DOCKER_VERSION=20.10.13

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@ -6,11 +6,14 @@
* [Cache backend API](#cache-backend-api) * [Cache backend API](#cache-backend-api)
* [Local cache](#local-cache) * [Local cache](#local-cache)
> More info about cache on [BuildKit](https://github.com/moby/buildkit#export-cache) and [Buildx](https://github.com/docker/buildx/blob/master/docs/reference/buildx_build.md#cache-from) repositories. > **Note**
>
> See [our guide](https://github.com/docker/buildx/blob/master/docs/guides/cache/index.md)
> for more details about cache storage backends.
## Inline cache ## Inline cache
In most cases you want to use the [`type=inline` cache exporter](https://github.com/moby/buildkit#inline-push-image-and-cache-together). In most cases you want to use the [`type=inline` cache exporter](https://github.com/docker/buildx/blob/master/docs/guides/cache/inline.md).
However, note that the `inline` cache exporter only supports `min` cache mode. To enable `max` cache mode, push the However, note that the `inline` cache exporter only supports `min` cache mode. To enable `max` cache mode, push the
image and the cache separately by using the `registry` cache exporter as shown in the [next example](#registry-cache). image and the cache separately by using the `registry` cache exporter as shown in the [next example](#registry-cache).
@ -52,7 +55,7 @@ jobs:
## Registry cache ## Registry cache
You can import/export cache from a cache manifest or (special) image configuration on the registry with the You can import/export cache from a cache manifest or (special) image configuration on the registry with the
[`type=registry` cache exporter](https://github.com/moby/buildkit/tree/master#registry-push-image-and-cache-separately). [`type=registry` cache exporter](https://github.com/docker/buildx/blob/master/docs/guides/cache/registry.md).
```yaml ```yaml
name: ci name: ci
@ -93,15 +96,17 @@ jobs:
### Cache backend API ### Cache backend API
> :test_tube: This cache exporter is considered EXPERIMENTAL until further notice. Please provide feedback on > **Warning**
> [BuildKit repository](https://github.com/moby/buildkit) if you encounter any issues. >
> This cache exporter is considered EXPERIMENTAL until further notice. Please
> provide feedback on [BuildKit repository](https://github.com/moby/buildkit)
> if you encounter any issues.
Since [buildx 0.6.0](https://github.com/docker/buildx/releases/tag/v0.6.0) and [BuildKit 0.9.0](https://github.com/moby/buildkit/releases/tag/v0.9.0), [GitHub Actions cache exporter](https://github.com/docker/buildx/blob/master/docs/guides/cache/gha.md)
you can use the [`type=gha` cache exporter](https://github.com/moby/buildkit/tree/master#github-actions-cache-experimental). backend uses the [GitHub Cache API](https://github.com/tonistiigi/go-actions-cache/blob/master/api.md)
to fetch and upload cache blobs. That's why this type of cache should be
GitHub Actions cache exporter backend uses the [GitHub Cache API](https://github.com/tonistiigi/go-actions-cache/blob/master/api.md) exclusively used in a GitHub Action workflow as the `url` (`$ACTIONS_CACHE_URL`)
to fetch and upload cache blobs. That's why this type of cache should be exclusively used in a GitHub Action workflow and `token` (`$ACTIONS_RUNTIME_TOKEN`) attributes are populated when a workflow
as the `url` (`$ACTIONS_CACHE_URL`) and `token` (`$ACTIONS_RUNTIME_TOKEN`) attributes are populated when a workflow
is started. is started.
```yaml ```yaml
@ -141,11 +146,13 @@ jobs:
### Local cache ### Local cache
> :warning: At the moment caches are copied over the existing cache so it [keeps growing](https://github.com/docker/build-push-action/issues/252). > **Warning**
> The `Move cache` step is used as a temporary fix (see https://github.com/moby/buildkit/issues/1896). >
> At the moment caches are copied over the existing cache, so it [keeps growing](https://github.com/docker/build-push-action/issues/252).
> The `Move cache` step is used as a workaround (see [moby/buildkit#1896](https://github.com/moby/buildkit/issues/1896) for more info).
You can also leverage [GitHub cache](https://docs.github.com/en/actions/configuring-and-managing-workflows/caching-dependencies-to-speed-up-workflows) You can also leverage [GitHub cache](https://docs.github.com/en/actions/using-workflows/caching-dependencies-to-speed-up-workflows)
using [actions/cache](https://github.com/actions/cache) and [`type=local` cache exporter](https://github.com/moby/buildkit#local-directory-1) using the [actions/cache](https://github.com/actions/cache) and [`type=local` cache exporter](https://github.com/docker/buildx/blob/master/docs/guides/cache/local.md)
with this action: with this action:
```yaml ```yaml

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@ -1,7 +1,7 @@
# Update Docker Hub repo description # Update Docker Hub repo description
You can update the [DockerHub repository description](https://docs.docker.com/docker-hub/repos/) using You can update the [Docker Hub repository description](https://docs.docker.com/docker-hub/repos/)
a third party action called [DockerHub Description](https://github.com/peter-evans/dockerhub-description) using a third party action called [Docker Hub Description](https://github.com/peter-evans/dockerhub-description)
with this action: with this action:
```yaml ```yaml

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docs/advanced/local-registry.md
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@ -1,6 +1,7 @@
# Local registry # Local registry
For testing purposes you may need to create a [local registry](https://hub.docker.com/_/registry) to push images into: For testing purposes you may need to create a [local registry](https://hub.docker.com/_/registry)
to push images into:
```yaml ```yaml
name: ci name: ci

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docs/advanced/multi-platform.md
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@ -1,10 +1,14 @@
# Multi-platform image # Multi-platform image
You can build multi-platform images using the [`platforms` input](../../README.md#inputs) as described below. You can build [multi-platform images](https://docs.docker.com/build/building/multi-platform/)
using the [`platforms` input](../../README.md#inputs) as described below.
> :bulb: List of available platforms will be displayed and available through our [setup-buildx](https://github.com/docker/setup-buildx-action#about) action. > **Note**
>
> :bulb: If you want support for more platforms, you can use QEMU with our [setup-qemu](https://github.com/docker/setup-qemu-action) action. > * List of available platforms will be displayed and available through our
> [setup-buildx](https://github.com/docker/setup-buildx-action#about) action.
> * If you want support for more platforms, you can use QEMU with our
> [setup-qemu](https://github.com/docker/setup-qemu-action) action.
```yaml ```yaml
name: ci name: ci

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docs/advanced/named-contexts.md
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@ -7,6 +7,9 @@ Dockerfile defines a stage with the same name it is overwritten.
This can be useful with GitHub Actions to reuse results from other builds or This can be useful with GitHub Actions to reuse results from other builds or
pin an image to a spcific tag in your workflow. pin an image to a spcific tag in your workflow.
* [Pin image to a specific tag](#pin-image-to-a-specific-tag)
* [Usage of the built image in other build steps](#usage-of-the-built-image-in-other-build-steps)
## Pin image to a specific tag ## Pin image to a specific tag
Replace `alpine:latest` with a pinned one: Replace `alpine:latest` with a pinned one:

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@ -1,12 +1,8 @@
# Push to multi-registries # Push to multi-registries
* [Docker Hub and GHCR](#docker-hub-and-ghcr)
## Docker Hub and GHCR
The following workflow will connect you to [Docker Hub](https://github.com/docker/login-action#dockerhub) The following workflow will connect you to [Docker Hub](https://github.com/docker/login-action#dockerhub)
and [GitHub Container Registry](https://github.com/docker/login-action#github-container-registry) and push the and [GitHub Container Registry](https://github.com/docker/login-action#github-container-registry)
image to these registries. and push the image to these registries:
```yaml ```yaml
name: ci name: ci

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docs/advanced/secrets.md
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@ -1,20 +1,19 @@
# Secrets # Secrets
In the following example we will expose and use the [GITHUB_TOKEN secret](https://docs.github.com/en/actions/reference/authentication-in-a-workflow#about-the-github_token-secret) In the following example we will expose and use the [GITHUB_TOKEN secret](https://docs.github.com/en/actions/security-guides/automatic-token-authentication#about-the-github_token-secret)
as provided by GitHub in your workflow. as provided by GitHub in your workflow.
First let's create our `Dockerfile` to use our secret: First let's create our `Dockerfile` to use our secret:
```Dockerfile ```dockerfile
#syntax=docker/dockerfile:1.2 # syntax=docker/dockerfile:1
FROM alpine FROM alpine
RUN --mount=type=secret,id=github_token \ RUN --mount=type=secret,id=github_token \
cat /run/secrets/github_token cat /run/secrets/github_token
``` ```
As you can see we have named our secret `github_token`. Here is the workflow you can use to expose this secret using As you can see we have named our secret `github_token`. Here is the workflow
the [`secrets` input](../../README.md#inputs): you can use to expose this secret using the [`secrets` input](../../README.md#inputs):
```yaml ```yaml
name: ci name: ci
@ -48,14 +47,17 @@ jobs:
"github_token=${{ secrets.GITHUB_TOKEN }}" "github_token=${{ secrets.GITHUB_TOKEN }}"
``` ```
> :bulb: You can also expose a secret file to the build with [`secret-files`](../../README.md#inputs) input: > **Note**
>
> You can also expose a secret file to the build with the [`secret-files`](../../README.md#inputs) input:
> ```yaml > ```yaml
> secret-files: | > secret-files: |
> "MY_SECRET=./secret.txt" > "MY_SECRET=./secret.txt"
> ``` > ```
If you're using [GitHub secrets](https://docs.github.com/en/actions/reference/encrypted-secrets) and need to handle If you're using [GitHub secrets](https://docs.github.com/en/actions/security-guides/encrypted-secrets)
multi-line value, you will need to place the key-value pair between quotes: and need to handle multi-line value, you will need to place the key-value pair
between quotes:
```yaml ```yaml
secrets: | secrets: |
@ -73,7 +75,7 @@ secrets: |
``` ```
| Key | Value | | Key | Value |
|--------------------|--------------------------------------------------| |--------------------|-------------------------------------|
| `MYSECRET` | `***********************` | | `MYSECRET` | `***********************` |
| `GIT_AUTH_TOKEN` | `abcdefghi,jklmno=0123456789` | | `GIT_AUTH_TOKEN` | `abcdefghi,jklmno=0123456789` |
| `MYSECRET` | `aaaaaaaa\nbbbbbbb\nccccccccc` | | `MYSECRET` | `aaaaaaaa\nbbbbbbb\nccccccccc` |
@ -81,4 +83,6 @@ secrets: |
| `EMPTYLINE` | `aaaa\n\nbbbb\nccc` | | `EMPTYLINE` | `aaaa\n\nbbbb\nccc` |
| `JSON_SECRET` | `{"key1":"value1","key2":"value2"}` | | `JSON_SECRET` | `{"key1":"value1","key2":"value2"}` |
> :bulb: All quote signs need to be doubled for escaping. > **Note**
>
> All quote signs need to be doubled for escaping.

8
docs/advanced/share-image-jobs.md
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@ -1,8 +1,10 @@
# Share built image between jobs # Share built image between jobs
As each job is isolated in its own runner you cannot use your built image between jobs (except for [self-hosted runners](https://docs.github.com/en/actions/hosting-your-own-runners/about-self-hosted-runners)). As each job is isolated in its own runner you cannot use your built image
However, you can [pass data between jobs in a workflow](https://docs.github.com/en/actions/guides/storing-workflow-data-as-artifacts#passing-data-between-jobs-in-a-workflow) between jobs (except for [self-hosted runners](https://docs.github.com/en/actions/hosting-your-own-runners/about-self-hosted-runners)).
using the [actions/upload-artifact](https://github.com/actions/upload-artifact) and [actions/download-artifact](https://github.com/actions/download-artifact) However, you can [pass data between jobs in a workflow](https://docs.github.com/en/actions/using-workflows/storing-workflow-data-as-artifacts#passing-data-between-jobs-in-a-workflow)
using the [actions/upload-artifact](https://github.com/actions/upload-artifact)
and [actions/download-artifact](https://github.com/actions/download-artifact)
actions: actions:
```yaml ```yaml

5
docs/advanced/tags-labels.md
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@ -1,8 +1,9 @@
# Handle tags and labels # Handle tags and labels
If you want an "automatic" tag management and [OCI Image Format Specification](https://github.com/opencontainers/image-spec/blob/master/annotations.md) If you want an "automatic" tag management and [OCI Image Format Specification](https://github.com/opencontainers/image-spec/blob/master/annotations.md)
for labels, you can do it in a dedicated step. The following workflow will use the [Docker metadata action](https://github.com/docker/metadata-action) for labels, you can do it in a dedicated step. The following workflow will use
to handle tags and labels based on GitHub actions events and Git metadata. the [Docker metadata action](https://github.com/docker/metadata-action) to
handle tags and labels based on GitHub actions events and Git metadata:
```yaml ```yaml
name: ci name: ci

8
docs/advanced/test-before-push.md
View File

@ -59,6 +59,8 @@ jobs:
tags: ${{ env.TEST_TAG }} tags: ${{ env.TEST_TAG }}
``` ```
> :bulb: Build time will not be increased with this workflow because internal > **Note**
> cache for `linux/amd64` will be used from previous step on `Build and push` >
> step so only `linux/arm64` will be actually built. > Build time will not be increased with this workflow because internal cache
> for `linux/amd64` will be used from previous step on `Build and push` step
> so only `linux/arm64` will be actually built.

2
test/Dockerfile
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@ -1,3 +1,3 @@
# syntax=docker/dockerfile:1
FROM alpine FROM alpine
RUN echo "Hello world!" RUN echo "Hello world!"

1
test/addhost.Dockerfile
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@ -1,2 +1,3 @@
# syntax=docker/dockerfile:1
FROM busybox FROM busybox
RUN cat /etc/hosts RUN cat /etc/hosts

2
test/buildcontext.Dockerfile
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@ -1,3 +1,3 @@
# syntax=docker/dockerfile-upstream:master # syntax=docker/dockerfile:1
FROM alpine FROM alpine
RUN cat /etc/*release RUN cat /etc/*release

1
test/cgroup.Dockerfile
View File

@ -1,2 +1,3 @@
# syntax=docker/dockerfile:1
FROM alpine FROM alpine
RUN cat /proc/self/cgroup RUN cat /proc/self/cgroup

4
test/multi-sudo.Dockerfile
View File

@ -1,9 +1,8 @@
# syntax=docker/dockerfile:1
FROM --platform=$BUILDPLATFORM golang:alpine AS build FROM --platform=$BUILDPLATFORM golang:alpine AS build
ARG TARGETPLATFORM ARG TARGETPLATFORM
ARG BUILDPLATFORM ARG BUILDPLATFORM
RUN echo "I am running on $BUILDPLATFORM, building for $TARGETPLATFORM" > /log RUN echo "I am running on $BUILDPLATFORM, building for $TARGETPLATFORM" > /log
RUN apk --update --no-cache add \ RUN apk --update --no-cache add \
shadow \ shadow \
sudo \ sudo \
@ -17,6 +16,5 @@ RUN sudo chown buildx. /log
USER root USER root
FROM alpine FROM alpine
COPY --from=build /log /log COPY --from=build /log /log
RUN ls -al /log RUN ls -al /log

1
test/multi.Dockerfile
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@ -1,3 +1,4 @@
# syntax=docker/dockerfile:1
FROM --platform=$BUILDPLATFORM golang:alpine AS build FROM --platform=$BUILDPLATFORM golang:alpine AS build
ARG TARGETPLATFORM ARG TARGETPLATFORM

1
test/nocachefilter.Dockerfile
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@ -1,3 +1,4 @@
# syntax=docker/dockerfile:1
FROM busybox AS base FROM busybox AS base
RUN echo "Hello world!" > /hello RUN echo "Hello world!" > /hello

1
test/shmsize.Dockerfile
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@ -1,2 +1,3 @@
# syntax=docker/dockerfile:1
FROM busybox FROM busybox
RUN mount | grep /dev/shm RUN mount | grep /dev/shm

1
test/ulimit.Dockerfile
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@ -1,2 +1,3 @@
# syntax=docker/dockerfile:1
FROM busybox FROM busybox
RUN ulimit -a RUN ulimit -a