docker-login/README.md
2020-09-01 20:38:53 +02:00

242 lines
8 KiB
Markdown

[![GitHub release](https://img.shields.io/github/release/docker/login-action.svg?style=flat-square)](https://github.com/docker/login-action/releases/latest)
[![GitHub marketplace](https://img.shields.io/badge/marketplace-docker--login-blue?logo=github&style=flat-square)](https://github.com/marketplace/actions/docker-login)
[![CI workflow](https://img.shields.io/github/workflow/status/docker/login-action/test?label=ci&logo=github&style=flat-square)](https://github.com/docker/login-action/actions?workflow=ci)
[![Test workflow](https://img.shields.io/github/workflow/status/docker/login-action/test?label=test&logo=github&style=flat-square)](https://github.com/docker/login-action/actions?workflow=test)
[![Codecov](https://img.shields.io/codecov/c/github/docker/login-action?logo=codecov&style=flat-square)](https://codecov.io/gh/docker/login-action)
## About
GitHub Action to login against a Docker registry.
> :bulb: See also:
> * [setup-buildx](https://github.com/docker/setup-buildx-action) action
> * [setup-qemu](https://github.com/docker/setup-qemu-action) action
> * [build-push](https://github.com/docker/build-push-action) action
![Screenshot](.github/docker-login.png)
___
* [Usage](#usage)
* [DockerHub](#dockerhub)
* [GitHub Packages Docker Registry](#github-packages-docker-registry)
* [GitHub Container Registry](#github-container-registry)
* [GitLab](#gitlab)
* [Azure Container Registry (ACR)](#azure-container-registry-acr)
* [Google Container Registry (GCR)](#google-container-registry-gcr)
* [AWS Elastic Container Registry (ECR)](#aws-elastic-container-registry-ecr)
* [Customizing](#customizing)
* [inputs](#inputs)
* [Keep up-to-date with GitHub Dependabot](#keep-up-to-date-with-github-dependabot)
* [Limitation](#limitation)
## Usage
### DockerHub
```yaml
name: ci
on:
push:
branches: master
jobs:
login:
runs-on: ubuntu-latest
steps:
-
name: Login to DockerHub
uses: docker/login-action@v1
with:
username: ${{ secrets.DOCKERHUB_USERNAME }}
password: ${{ secrets.DOCKERHUB_PASSWORD }}
```
### GitHub Packages Docker Registry
You can configure the Docker client to use [GitHub Packages to publish and retrieve docker images](https://docs.github.com/en/packages/using-github-packages-with-your-projects-ecosystem/configuring-docker-for-use-with-github-packages).
```yaml
name: ci
on:
push:
branches: master
jobs:
login:
runs-on: ubuntu-latest
steps:
-
name: Login to GitHub Packages Docker Registry
uses: docker/login-action@v1
with:
registry: docker.pkg.github.com
username: ${{ github.repository_owner }}
password: ${{ secrets.GITHUB_TOKEN }}
```
### GitHub Container Registry
To authenticate against the [GitHub Container Registry](https://docs.github.com/en/packages/getting-started-with-github-container-registry),
you will need to create a new [personal access token (PAT)](https://docs.github.com/en/github/authenticating-to-github/creating-a-personal-access-token)
with the [appropriate scopes](https://docs.github.com/en/packages/getting-started-with-github-container-registry/migrating-to-github-container-registry-for-docker-images#authenticating-with-the-container-registry).
```yaml
name: ci
on:
push:
branches: master
jobs:
login:
runs-on: ubuntu-latest
steps:
-
name: Login to GitHub Container Registry
uses: docker/login-action@v1
with:
registry: ghcr.io
username: ${{ github.repository_owner }}
password: ${{ secrets.CR_PAT }}
```
### GitLab
```yaml
name: ci
on:
push:
branches: master
jobs:
login:
runs-on: ubuntu-latest
steps:
-
name: Login to GitLab
uses: docker/login-action@v1
with:
registry: registry.gitlab.com
username: ${{ secrets.GITLAB_USERNAME }}
password: ${{ secrets.GITLAB_PASSWORD }}
```
### Azure Container Registry (ACR)
[Create a service principal](https://docs.microsoft.com/en-us/azure/container-registry/container-registry-auth-service-principal#create-a-service-principal)
with access to your container registry through the [Azure CLI](https://docs.microsoft.com/en-us/cli/azure/install-azure-cli)
and take note of the generated service principal's ID (also called _client ID_) and password (also called _client secret_).
```yaml
name: ci
on:
push:
branches: master
jobs:
login:
runs-on: ubuntu-latest
steps:
-
name: Login to ACR
uses: docker/login-action@v1
with:
registry: <registry-name>.azurecr.io
username: ${{ secrets.AZURE_CLIENT_ID }}
password: ${{ secrets.AZURE_CLIENT_SECRET }}
```
> Replace `<registry-name>` with the name of your registry.
### Google Container Registry (GCR)
Use a service account with the ability to push to GCR and [configure access control](https://cloud.google.com/container-registry/docs/access-control).
Then create and download the JSON key for this service account and save content of `.json` file
[as a secret](https://docs.github.com/en/actions/configuring-and-managing-workflows/creating-and-storing-encrypted-secrets#creating-encrypted-secrets-for-a-repository)
called `GCR_JSON_KEY` in your GitHub repo. Ensure you set the username to `_json_key`.
```yaml
name: ci
on:
push:
branches: master
jobs:
login:
runs-on: ubuntu-latest
steps:
-
name: Login to GCR
uses: docker/login-action@v1
with:
registry: gcr.io
username: _json_key
password: ${{ secrets.GCR_JSON_KEY }}
```
### AWS Elastic Container Registry (ECR)
Use an IAM user with the [ability to push to ECR](https://docs.aws.amazon.com/AmazonECR/latest/userguide/ecr_managed_policies.html).
Then create and download access keys and save `AWS_ACCESS_KEY_ID` and `AWS_SECRET_ACCESS_KEY` [as secrets](https://docs.github.com/en/actions/configuring-and-managing-workflows/creating-and-storing-encrypted-secrets#creating-encrypted-secrets-for-a-repository)
in your GitHub repo.
```yaml
name: ci
on:
push:
branches: master
jobs:
login:
runs-on: ubuntu-latest
steps:
-
name: Login to ECR
uses: docker/login-action@v1
with:
registry: <aws-account-number>.dkr.ecr.<region>.amazonaws.com
username: ${{ secrets.AWS_ACCESS_KEY_ID }}
password: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
```
> Replace `<aws-account-number>` and `<region>` with their respective values.
## Customizing
### inputs
Following inputs can be used as `step.with` keys
| Name | Type | Default | Description |
|------------------|---------|-----------------------------|------------------------------------|
| `registry` | String | | Server address of Docker registry. If not set then will default to Docker Hub |
| `username` | String | | Username used to log against the Docker registry |
| `password` | String | | Password or personal access token used to log against the Docker registry |
| `logout` | Bool | `true` | Log out from the Docker registry at the end of a job |
## Keep up-to-date with GitHub Dependabot
Since [Dependabot](https://docs.github.com/en/github/administering-a-repository/keeping-your-actions-up-to-date-with-github-dependabot)
has [native GitHub Actions support](https://docs.github.com/en/github/administering-a-repository/configuration-options-for-dependency-updates#package-ecosystem),
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"
```
## Limitation
This action is only available for Linux [virtual environments](https://help.github.com/en/articles/virtual-environments-for-github-actions#supported-virtual-environments-and-hardware-resources).