About
GitHub Action to login against a Docker registry.
Usage
Docker Hub
To authenticate against Docker Hub it's strongly recommended to create a personal access token as an alternative to your password.
name: ci
on:
push:
branches: main
jobs:
login:
runs-on: ubuntu-latest
steps:
-
name: Login to Docker Hub
uses: docker/login-action@v2
with:
username: ${{ secrets.DOCKERHUB_USERNAME }}
password: ${{ secrets.DOCKERHUB_TOKEN }}GitHub Container Registry
To authenticate against the GitHub Container Registry,
use the GITHUB_TOKEN for the best
security and experience.
name: ci
on:
push:
branches: main
jobs:
login:
runs-on: ubuntu-latest
steps:
-
name: Login to GitHub Container Registry
uses: docker/login-action@v2
with:
registry: ghcr.io
username: ${{ github.actor }}
password: ${{ secrets.GITHUB_TOKEN }}You may need to manage write and read access of GitHub Actions for repositories in the container settings.
You can also use a personal access token (PAT) with the appropriate scopes.
GitLab
name: ci
on:
push:
branches: main
jobs:
login:
runs-on: ubuntu-latest
steps:
-
name: Login to GitLab
uses: docker/login-action@v2
with:
registry: registry.gitlab.com
username: ${{ secrets.GITLAB_USERNAME }}
password: ${{ secrets.GITLAB_PASSWORD }}If you have Two-Factor Authentication enabled, use a Personal Access Token instead of a password.
Azure Container Registry (ACR)
Create a service principal with access to your container registry through the Azure CLI and take note of the generated service principal's ID (also called client ID) and password (also called client secret).
name: ci
on:
push:
branches: main
jobs:
login:
runs-on: ubuntu-latest
steps:
-
name: Login to ACR
uses: docker/login-action@v2
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)
Google Artifact Registry is the evolution of Google Container Registry. As a fully-managed service with support for both container images and non-container artifacts. If you currently use Google Container Registry, use the information on this page to learn about transitioning to Google Artifact Registry.
You can use either workload identity federation based keyless authentication or service account based authentication.
Workload identity federation based authentication
Configure the workload identity federation for github actions in gcloud (for steps, refer here). In the steps, your service account should the ability to push to GCR. Then use google-github-actions/auth action for authentication using workload identity like below:
name: ci
on:
push:
branches: main
jobs:
login:
runs-on: ubuntu-latest
steps:
- id: 'auth'
name: 'Authenticate to Google Cloud'
uses: 'google-github-actions/auth@v0'
with:
token_format: 'access_token'
workload_identity_provider: '<workload_identity_provider>'
service_account: '<service_account>'
- name: Login to GCR
uses: docker/login-action@v2
with:
registry: gcr.io
username: oauth2accesstoken
password: ${{ steps.auth.outputs.access_token }}Replace
<workload_identity_provider>with configured workload identity provider. For steps to configure, refer here.
Replace
<service_account>with configured service account in workload identity provider which has access to push to GCR
Service account based authentication
Use a service account with the ability to push to GCR and configure access control.
Then create and download the JSON key for this service account and save content of .json file
as a secret
called GCR_JSON_KEY in your GitHub repo. Ensure you set the username to _json_key,
or _json_key_base64 if you use a base64-encoded key.
name: ci
on:
push:
branches: main
jobs:
login:
runs-on: ubuntu-latest
steps:
-
name: Login to GCR
uses: docker/login-action@v2
with:
registry: gcr.io
username: _json_key
password: ${{ secrets.GCR_JSON_KEY }}Google Artifact Registry (GAR)
You can use either workload identity federation based keyless authentication or service account based authentication.
Workload identity federation based authentication
Configure the workload identity federation for github actions in gcloud (for steps, refer here). In the steps, your service account should the ability to push to GAR. Then use google-github-actions/auth action for authentication using workload identity like below:
name: ci
on:
push:
branches: main
jobs:
login:
runs-on: ubuntu-latest
steps:
- id: 'auth'
name: 'Authenticate to Google Cloud'
uses: 'google-github-actions/auth@v0'
with:
token_format: 'access_token'
workload_identity_provider: '<workload_identity_provider>'
service_account: '<service_account>'
- name: Login to GAR
uses: docker/login-action@v2
with:
registry: <location>-docker.pkg.dev
username: oauth2accesstoken
password: ${{ steps.auth.outputs.access_token }}Replace
<workload_identity_provider>with configured workload identity provider
Replace
<service_account>with configured service account in workload identity provider which has access to push to GCR
Replace
<location>with the regional or multi-regional location of the repository where the image is stored.
Service account based authentication
Use a service account with the ability to push to GAR and configure access control.
Then create and download the JSON key for this service account and save content of .json file
as a secret
called GAR_JSON_KEY in your GitHub repo. Ensure you set the username to _json_key,
or _json_key_base64 if you use a base64-encoded key.
name: ci
on:
push:
branches: main
jobs:
login:
runs-on: ubuntu-latest
steps:
-
name: Login to GAR
uses: docker/login-action@v2
with:
registry: <location>-docker.pkg.dev
username: _json_key
password: ${{ secrets.GAR_JSON_KEY }}Replace
<location>with the regional or multi-regional location of the repository where the image is stored.
AWS Elastic Container Registry (ECR)
Use an IAM user with the ability to push to ECR with AmazonEC2ContainerRegistryPowerUser managed policy for example.
Then create and download access keys and save AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY as secrets
in your GitHub repo.
name: ci
on:
push:
branches: main
jobs:
login:
runs-on: ubuntu-latest
steps:
-
name: Login to ECR
uses: docker/login-action@v2
with:
registry: <aws-account-number>.dkr.ecr.<region>.amazonaws.com
username: ${{ secrets.AWS_ACCESS_KEY_ID }}
password: ${{ secrets.AWS_SECRET_ACCESS_KEY }}If you need to log in to Amazon ECR registries associated with other accounts, you can use the AWS_ACCOUNT_IDS
environment variable:
name: ci
on:
push:
branches: main
jobs:
login:
runs-on: ubuntu-latest
steps:
-
name: Login to ECR
uses: docker/login-action@v2
with:
registry: <aws-account-number>.dkr.ecr.<region>.amazonaws.com
username: ${{ secrets.AWS_ACCESS_KEY_ID }}
password: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
env:
AWS_ACCOUNT_IDS: 012345678910,023456789012Only available with AWS CLI version 1
You can also use the Configure AWS Credentials action in combination with this action:
name: ci
on:
push:
branches: main
jobs:
login:
runs-on: ubuntu-latest
steps:
-
name: Configure AWS Credentials
uses: aws-actions/configure-aws-credentials@v1
with:
aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
aws-region: <region>
-
name: Login to ECR
uses: docker/login-action@v2
with:
registry: <aws-account-number>.dkr.ecr.<region>.amazonaws.comReplace
<aws-account-number>and<region>with their respective values.
AWS Public Elastic Container Registry (ECR)
Use an IAM user with the ability to push to ECR Public with AmazonElasticContainerRegistryPublicPowerUser managed policy for example.
Then create and download access keys and save AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY as secrets
in your GitHub repo.
name: ci
on:
push:
branches: main
jobs:
login:
runs-on: ubuntu-latest
steps:
-
name: Login to Public ECR
uses: docker/login-action@v2
with:
registry: public.ecr.aws
username: ${{ secrets.AWS_ACCESS_KEY_ID }}
password: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
env:
AWS_REGION: <region>Replace
<region>with its respective value (defaultus-east-1).
OCI Oracle Cloud Infrastructure Registry (OCIR)
To push into OCIR in specific tenancy the username
must be placed in format <tenancy>/<username> (in case of federated tenancy use the format
<tenancy-namespace>/oracleidentitycloudservice/<username>).
For password create an auth token. Save username and token as a secrets in your GitHub repo.
name: ci
on:
push:
branches: main
jobs:
login:
runs-on: ubuntu-latest
steps:
-
name: Login to OCIR
uses: docker/login-action@v2
with:
registry: <region>.ocir.io
username: ${{ secrets.OCI_USERNAME }}
password: ${{ secrets.OCI_TOKEN }}Replace
<region>with their respective values from availability regions
Quay.io
Use a Robot account with the ability to push to a public/private Quay.io repository.
name: ci
on:
push:
branches: main
jobs:
login:
runs-on: ubuntu-latest
steps:
-
name: Login to Quay.io
uses: docker/login-action@v2
with:
registry: quay.io
username: ${{ secrets.QUAY_USERNAME }}
password: ${{ secrets.QUAY_ROBOT_TOKEN }}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 | |
ecr |
String | auto |
Specifies whether the given registry is ECR (auto, true or false) |
logout |
Bool | true |
Log out from the Docker registry at the end of a job |
Keep up-to-date with GitHub Dependabot
Since Dependabot
has native GitHub Actions support,
to enable it on your GitHub repo all you need to do is add the .github/dependabot.yml file:
version: 2
updates:
# Maintain dependencies for GitHub Actions
- package-ecosystem: "github-actions"
directory: "/"
schedule:
interval: "daily"