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Merge pull request #1 from docker/action-definition

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Add action definition
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.github/workflows/main.yml vendored Normal file
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name: CI
on:
push:
branches:
- master
tags:
- '*'
pull_request:
jobs:
build:
name: build
runs-on: ubuntu-latest
timeout-minutes: 3
steps:
- name: Checkout
uses: actions/checkout@v2
- name: Run local registry
run: docker run -d -p 5000:5000 registry:2
- name: Build and push image
uses: ./
env:
DOCKER_BUILDKIT: 1
with:
registry: localhost:5000
repository: temp/workflow
tags: foo
- name: Remove local image
run: docker image rm localhost:5000/temp/workflow:foo
- name: Run image from registry
run: docker run localhost:5000/temp/workflow:foo

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FROM alpine:3
ENTRYPOINT ["echo", "docker github actions"]

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README.md
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# build-push-action
Build+push official Docker GitHub action
Builds and pushes Docker images and will log in to a Docker registry if required
[Inputs](#Inputs)
* [repository](#repository)
* [username](#username)
* [password](#password)
* [registry](#registry)
* [tags](#tags)
* [tag_with_ref](#tag_with_ref)
* [tag_with_sha](#tag_with_sha)
* [path](#path)
* [dockerfile](#dockerfile)
* [target](#target)
* [always_pull](#always_pull)
* [build_args](#build_args)
* [labels](#labels)
* [add_git_labels](#add_git_labels)
* [push](#push)
[Example usage](#Example-usage)
## Inputs
### `repository`
**Required** Docker repository to tag the image with.
### `username`
Username used to log in to a Docker registry. If not set then no login will occur.
### `password`
Password used to log in to a Docker registry. If not set then no login will occur.
### `registry`
Server address of Docker registry. If not set then will default to Docker Hub.
### `tags`
Comma-delimited list of tags. These will be added to the registry/repository to form the image's tags.
Example:
```yaml
tags: tag1,tag2
```
### `tag_with_ref`
Boolean value. Defaults to `false`.
Automatically tags the built image with the git reference. The format of the tag depends on the type of git reference with all forward slashes replaced with `-`.
For pushes to a branch the reference will be `refs/heads/{branch-name}` and the tag will be `{branch-name}`. If `{branch-name}` is master then the tag will be `latest`.
For pull requests the reference will be `refs/pull/{pull-request}` and the tag will be `pr-{pull-request}`.
For git tags the reference will be `refs/tags/{git-tag}` and the tag will be `{git-tag}`.
Examples:
|Git Reference|Image tag|
|---|---|
|`refs/heads/master`|`latest`|
|`refs/heads/my/branch`|`my-branch`|
|`refs/pull/2/merge`|`pr-2-merge`|
|`refs/tags/v1.0.0`|`v1.0.0`|
### `tag_with_sha`
Boolean value. Defaults to `false`.
Automatically tags the built image with the git short SHA prefixed with `sha-`.
Example:
|Git SHA|Image tag|
|---|---|
|`676cae2f85471aeff6776463c72881ebd902dcf9`|`sha-676cae2`|
### `path`
Path to run the docker build from. Defaults to `.`.
### `dockerfile`
Name of the Dockerfile. Defaults to `{path}/Dockerfile`.
### `target`
Sets the target stage to build.
### `always_pull`
Boolean value. Defaults to `false`.
Always attempt to pull a newer version of the image.
### `build_args`
Comma-delmited list of build-time variables.
Example:
```yaml
build_args: arg1=value1,arg2=value2
```
### `labels`
Comma-delimited list of labels to add to the built image.
Example:
```yaml
labels: label_name_1=label_value_1,label_name_2=label_value_2
```
### `add_git_labels`
Boolean value. Defaults to `false`.
Adds labels with git repository information to the built image.
The labels are:
|Label key|Example value|Description|
|---|---|---|
|`com.docker.github-actions-actor`|`my-username`|The actor that kicked off the workflow. For example this could be the username of the user that did the git push.|
|`com.docker.github-actions-sha`|`676cae2f85471aeff6776463c72881ebd902dcf9`|Full git SHA of the current commit.|
### `push`
Boolean value. Defaults to `true`.
Whether to push the built image.
## Example usage
The following will build the root Dockerfile, tag the image as `myorg/myrepository:latest`, log in to Docker Hub using GitHub secrets, and push the image to the Docker Hub repository `myorg/myrepository`:
```yaml
uses: docker/build-push-action@v1
with:
username: ${{ secrets.DOCKER_USERNAME }}
password: ${{ secrets.DOCKER_PASSWORD }}
repository: myorg/myrepository
tags: latest
```
The following will build the root Dockerfile, tag the image with the git reference and SHA as described above, log in to Docker Hub using GitHub secrets, and push the image to the Docker Hub repository `myorg/myrepository`:
```yaml
uses: docker/build-push-action@v1
with:
username: ${{ secrets.DOCKER_USERNAME }}
password: ${{ secrets.DOCKER_PASSWORD }}
repository: myorg/myrepository
tag_with_ref: true
tag_with_sha: true
```
The following will only push the image when the event that kicked off the workflow was a push of a git tag:
```yaml
uses: docker/build-push-action@v1
with:
username: ${{ secrets.DOCKER_USERNAME }}
password: ${{ secrets.DOCKER_PASSWORD }}
repository: myorg/myrepository
tag_with_ref: true
push: ${{ startsWith(github.ref, 'refs/tags/') }}
```
The following builds the `mytarget` stage and pushes that:
```yaml
uses: docker/build-push-action@v1
with:
username: ${{ secrets.DOCKER_USERNAME }}
password: ${{ secrets.DOCKER_PASSWORD }}
repository: myorg/myrepository
tag_with_ref: true
target: mytarget
```

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name: Build and push Docker images
description: Builds and pushes Docker images and will log in to a Docker registry if required
author: Docker
runs:
using: docker
image: docker://docker/github-actions:v0.0.1
args:
- build-push
inputs:
username:
description: Username used to log in to a Docker registry. If not set then no login will occur
required: false
password:
description: Password used to log in to a Docker registry. If not set then no login will occur
required: false
registry:
description: Server address of Docker registry. If not set then will default to Docker Hub
required: false
repository:
description: Docker repository to tag the image with
required: true
tags:
description: Comma-delimited list of tags. These will be added to the registry/repository to form the image's tags
required: false
tag_with_ref:
description: Automatically tags the built image with the git reference as per the readme
required: false
default: false
tag_with_sha:
description: Automatically tags the built image with the git short sha as per the readme
required: false
default: false
path:
description: Path to run docker build from
required: false
default: "."
dockerfile:
description: Name of the Dockerfile (Default is 'path/Dockerfile')
required: false
target:
description: Sets the target stage to build
required: false
always_pull:
description: Always attempt to pull a newer version of the image
required: false
default: false
build_args:
description: Comma-delmited list of build-time variables
required: false
labels:
description: Comma-delimited list of labels to add to the built image
required: false
add_git_labels:
description: Adds labels with git repo info to the built image
required: false
default: false
push:
description: Whether to push the image
required: false
default: true