title | shortTitle | intro | redirect_from | versions | |||||||||||||
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Workflow syntax for GitHub Actions |
Workflow syntax |
A workflow is a configurable automated process made up of one or more jobs. You must create a YAML file to define your workflow configuration. |
|
|
{% data reusables.actions.enterprise-github-hosted-runners %}
Workflow files use YAML syntax, and must have either a .yml
or .yaml
file extension. {% data reusables.actions.learn-more-about-yaml %}
You must store workflow files in the .github/workflows
directory of your repository.
{% data reusables.actions.workflows.workflow-syntax-name %}
{% ifversion actions-run-name %}
The name for workflow runs generated from the workflow. {% data variables.product.prodname_dotcom %} displays the workflow run name in the list of workflow runs on your repository's "Actions" tab. If run-name
is omitted or is only whitespace, then the run name is set to event-specific information for the workflow run. For example, for a workflow triggered by a push
or pull_request
event, it is set as the commit message.
This value can include expressions and can reference the github
and inputs
contexts.
{% raw %}
run-name: Deploy to ${{ inputs.deploy_target }} by @${{ github.actor }}
{% endraw %} {% endif %}
{% data reusables.actions.workflows.section-triggering-a-workflow %}
{% data reusables.actions.workflows.section-triggering-a-workflow-types %}
{% data reusables.actions.workflows.section-triggering-a-workflow-branches %}
{% data reusables.actions.workflows.section-run-on-specific-branches-or-tags %}
{% data reusables.actions.workflows.section-triggering-a-workflow-paths %}
{% data reusables.actions.workflows.section-triggering-a-workflow-schedule %}
Use on.workflow_call
to define the inputs and outputs for a reusable workflow. You can also map the secrets that are available to the called workflow. For more information on reusable workflows, see "AUTOTITLE."
When using the workflow_call
keyword, you can optionally specify inputs that are passed to the called workflow from the caller workflow. For more information about the workflow_call
keyword, see "AUTOTITLE."
In addition to the standard input parameters that are available, on.workflow_call.inputs
requires a type
parameter. For more information, see on.workflow_call.inputs.<input_id>.type
.
If a default
parameter is not set, the default value of the input is false
for a boolean, 0
for a number, and ""
for a string.
Within the called workflow, you can use the inputs
context to refer to an input. For more information, see "AUTOTITLE."
If a caller workflow passes an input that is not specified in the called workflow, this results in an error.
{% raw %}
on:
workflow_call:
inputs:
username:
description: 'A username passed from the caller workflow'
default: 'john-doe'
required: false
type: string
jobs:
print-username:
runs-on: ubuntu-latest
steps:
- name: Print the input name to STDOUT
run: echo The username is ${{ inputs.username }}
{% endraw %}
For more information, see "AUTOTITLE."
Required if input is defined for the on.workflow_call
keyword. The value of this parameter is a string specifying the data type of the input. This must be one of: boolean
, number
, or string
.
A map of outputs for a called workflow. Called workflow outputs are available to all downstream jobs in the caller workflow. Each output has an identifier, an optional description,
and a value.
The value
must be set to the value of an output from a job within the called workflow.
In the example below, two outputs are defined for this reusable workflow: workflow_output1
and workflow_output2
. These are mapped to outputs called job_output1
and job_output2
, both from a job called my_job
.
{% raw %}
on:
workflow_call:
# Map the workflow outputs to job outputs
outputs:
workflow_output1:
description: "The first job output"
value: ${{ jobs.my_job.outputs.job_output1 }}
workflow_output2:
description: "The second job output"
value: ${{ jobs.my_job.outputs.job_output2 }}
{% endraw %}
For information on how to reference a job output, see jobs.<job_id>.outputs
. For more information, see "AUTOTITLE."
A map of the secrets that can be used in the called workflow.
Within the called workflow, you can use the secrets
context to refer to a secret.
{% note %}
Note: If you are passing the secret to a nested reusable workflow, then you must use jobs.<job_id>.secrets
again to pass the secret. For more information, see "AUTOTITLE."
{% endnote %}
If a caller workflow passes a secret that is not specified in the called workflow, this results in an error.
{% raw %}
on:
workflow_call:
secrets:
access-token:
description: 'A token passed from the caller workflow'
required: false
jobs:
pass-secret-to-action:
runs-on: ubuntu-latest
steps:
# passing the secret to an action
- name: Pass the received secret to an action
uses: ./.github/actions/my-action
with:
token: ${{ secrets.access-token }}
# passing the secret to a nested reusable workflow
pass-secret-to-workflow:
uses: ./.github/workflows/my-workflow
secrets:
token: ${{ secrets.access-token }}
{% endraw %}
A string identifier to associate with the secret.
A boolean specifying whether the secret must be supplied.
{% data reusables.actions.workflows.section-specifying-branches %}
{% data reusables.actions.workflow-dispatch %}
{% data reusables.actions.workflow-dispatch-inputs %}
{% data reusables.actions.workflow-dispatch-inputs-example %}
A boolean specifying whether the input must be supplied.
The value of this parameter is a string specifying the data type of the input. This must be one of: boolean
, choice
, number
, or string
.
{% data reusables.actions.jobs.section-assigning-permissions-to-jobs %}
{% data reusables.actions.github-token-available-permissions %}
{% data reusables.actions.forked-write-permission %}
You can specify permissions
at the top level of a workflow, so that the setting applies to all jobs in the workflow.
{% data reusables.actions.jobs.setting-permissions-all-jobs-example %}
A map
of variables that are available to the steps of all jobs in the workflow. You can also set variables that are only available to the steps of a single job or to a single step. For more information, see jobs.<job_id>.env
and jobs.<job_id>.steps[*].env
.
Variables in the env
map cannot be defined in terms of other variables in the map.
{% data reusables.repositories.actions-env-var-note %}
env:
SERVER: production
{% data reusables.actions.jobs.setting-default-values-for-jobs-defaults %}
{% data reusables.actions.jobs.setting-default-values-for-jobs-defaults-run %}
{% data reusables.actions.jobs.section-using-concurrency %}
{% data reusables.actions.jobs.section-using-jobs-in-a-workflow %}
{% data reusables.actions.jobs.section-using-jobs-in-a-workflow-id %}
{% data reusables.actions.jobs.section-using-jobs-in-a-workflow-name %}
{% data reusables.actions.jobs.section-assigning-permissions-to-jobs-specific %}
{% data reusables.actions.github-token-scope-descriptions %}
{% data reusables.actions.github-token-available-permissions %}
{% data reusables.actions.forked-write-permission %}
{% data reusables.actions.jobs.setting-permissions-specific-jobs-example %}
{% data reusables.actions.jobs.section-using-jobs-in-a-workflow-needs %}
{% data reusables.actions.jobs.section-using-conditions-to-control-job-execution %}
{% data reusables.actions.jobs.section-choosing-the-runner-for-a-job %}
{% data reusables.actions.jobs.section-using-environments-for-jobs %}
{% data reusables.actions.jobs.section-using-concurrency-jobs %}
{% data reusables.actions.jobs.section-defining-outputs-for-jobs %}
A map
of variables that are available to all steps in the job. You can set variables for the entire workflow or an individual step. For more information, see env
and jobs.<job_id>.steps[*].env
.
{% data reusables.repositories.actions-env-var-note %}
jobs:
job1:
env:
FIRST_NAME: Mona
{% data reusables.actions.jobs.setting-default-values-for-jobs-defaults-job %}
{% data reusables.actions.jobs.setting-default-values-for-jobs-defaults-job-run %}
{% data reusables.actions.jobs.setting-default-run-value-for-job-example %}
A job contains a sequence of tasks called steps
. Steps can run commands, run setup tasks, or run an action in your repository, a public repository, or an action published in a Docker registry. Not all steps run actions, but all actions run as a step. Each step runs in its own process in the runner environment and has access to the workspace and filesystem. Because steps run in their own process, changes to environment variables are not preserved between steps. {% data variables.product.prodname_dotcom %} provides built-in steps to set up and complete a job.
{% data variables.product.prodname_dotcom %} only displays the first 1,000 checks, however, you can run an unlimited number of steps as long as you are within the workflow usage limits. For more information, see {% ifversion fpt or ghec or ghes %}"AUTOTITLE" for {% data variables.product.prodname_dotcom %}-hosted runners and {% endif %}"AUTOTITLE{% ifversion fpt or ghec or ghes %}" for self-hosted runner usage limits.{% elsif ghae %}."{% endif %}
{% raw %}
name: Greeting from Mona
on: push
jobs:
my-job:
name: My Job
runs-on: ubuntu-latest
steps:
- name: Print a greeting
env:
MY_VAR: Hi there! My name is
FIRST_NAME: Mona
MIDDLE_NAME: The
LAST_NAME: Octocat
run: |
echo $MY_VAR $FIRST_NAME $MIDDLE_NAME $LAST_NAME.
{% endraw %}
A unique identifier for the step. You can use the id
to reference the step in contexts. For more information, see "AUTOTITLE."
You can use the if
conditional to prevent a step from running unless a condition is met. {% data reusables.actions.if-supported-contexts %}
{% data reusables.actions.expression-syntax-if %} For more information, see "AUTOTITLE."
This step only runs when the event type is a pull_request
and the event action is unassigned
.
steps:
- name: My first step
if: {% raw %}${{ github.event_name == 'pull_request' && github.event.action == 'unassigned' }}{% endraw %}
run: echo This event is a pull request that had an assignee removed.
The my backup step
only runs when the previous step of a job fails. For more information, see "AUTOTITLE."
steps:
- name: My first step
uses: octo-org/action-name@main
- name: My backup step
if: {% raw %}${{ failure() }}{% endraw %}
uses: actions/heroku@1.0.0
Secrets cannot be directly referenced in if:
conditionals. Instead, consider setting secrets as job-level environment variables, then referencing the environment variables to conditionally run steps in the job.
If a secret has not been set, the return value of an expression referencing the secret (such as {% raw %}${{ secrets.SuperSecret }}
{% endraw %} in the example) will be an empty string.
{% raw %}
name: Run a step if a secret has been set
on: push
jobs:
my-jobname:
runs-on: ubuntu-latest
env:
super_secret: ${{ secrets.SuperSecret }}
steps:
- if: ${{ env.super_secret != '' }}
run: echo 'This step will only run if the secret has a value set.'
- if: ${{ env.super_secret == '' }}
run: echo 'This step will only run if the secret does not have a value set.'
{% endraw %}
For more information, see "AUTOTITLE" and "AUTOTITLE."
A name for your step to display on {% data variables.product.prodname_dotcom %}.
Selects an action to run as part of a step in your job. An action is a reusable unit of code. You can use an action defined in the same repository as the workflow, a public repository, or in a published Docker container image.
We strongly recommend that you include the version of the action you are using by specifying a Git ref, SHA, or Docker tag. If you don't specify a version, it could break your workflows or cause unexpected behavior when the action owner publishes an update.
- Using the commit SHA of a released action version is the safest for stability and security.
- If the action publishes major version tags, you should expect to receive critical fixes and security patches while still retaining compatibility. Note that this behavior is at the discretion of the action's author.
- Using the default branch of an action may be convenient, but if someone releases a new major version with a breaking change, your workflow could break.
Some actions require inputs that you must set using the with
keyword. Review the action's README file to determine the inputs required.
Actions are either JavaScript files or Docker containers. If the action you're using is a Docker container you must run the job in a Linux environment. For more details, see runs-on
.
steps:
# Reference a specific commit
- uses: actions/checkout@8f4b7f84864484a7bf31766abe9204da3cbe65b3
# Reference the major version of a release
- uses: {% data reusables.actions.action-checkout %}
# Reference a specific version
- uses: {% data reusables.actions.action-checkout %}.2.0
# Reference a branch
- uses: actions/checkout@main
{owner}/{repo}@{ref}
You can specify a branch, ref, or SHA in a public {% data variables.product.prodname_dotcom %} repository.
jobs:
my_first_job:
steps:
- name: My first step
# Uses the default branch of a public repository
uses: actions/heroku@main
- name: My second step
# Uses a specific version tag of a public repository
uses: actions/aws@v2.0.1
{owner}/{repo}/{path}@{ref}
A subdirectory in a public {% data variables.product.prodname_dotcom %} repository at a specific branch, ref, or SHA.
jobs:
my_first_job:
steps:
- name: My first step
uses: actions/aws/ec2@main
./path/to/dir
The path to the directory that contains the action in your workflow's repository. You must check out your repository before using the action.
jobs:
my_first_job:
steps:
- name: Check out repository
uses: {% data reusables.actions.action-checkout %}
- name: Use local my-action
uses: ./.github/actions/my-action
docker://{image}:{tag}
A Docker image published on Docker Hub.
jobs:
my_first_job:
steps:
- name: My first step
uses: docker://alpine:3.8
{% ifversion fpt or ghec %}
Example: Using the {% data variables.product.prodname_registry %} {% data variables.product.prodname_container_registry %}
docker://{host}/{image}:{tag}
A public Docker image in the {% data variables.product.prodname_registry %} {% data variables.product.prodname_container_registry %}.
jobs:
my_first_job:
steps:
- name: My first step
uses: docker://ghcr.io/OWNER/IMAGE_NAME
{% endif %}
docker://{host}/{image}:{tag}
A Docker image in a public registry. This example uses the Google Container Registry at gcr.io
.
jobs:
my_first_job:
steps:
- name: My first step
uses: docker://gcr.io/cloud-builders/gradle
Your workflow must checkout the private repository and reference the action locally. Generate a {% data variables.product.pat_generic %} and add the token as a secret. For more information, see "AUTOTITLE" and "AUTOTITLE."
Replace PERSONAL_ACCESS_TOKEN
in the example with the name of your secret.
jobs:
my_first_job:
steps:
- name: Check out repository
uses: {% data reusables.actions.action-checkout %}
with:
repository: octocat/my-private-repo
ref: v1.0
token: {% raw %}${{ secrets.PERSONAL_ACCESS_TOKEN }}{% endraw %}
path: ./.github/actions/my-private-repo
- name: Run my action
uses: ./.github/actions/my-private-repo/my-action
Alternatively, use a {% data variables.product.prodname_github_app %} instead of a {% data variables.product.pat_generic %} in order to ensure your workflow continues to run even if the {% data variables.product.pat_generic %} owner leaves. For more information, see "AUTOTITLE."
Runs command-line programs using the operating system's shell. If you do not provide a name
, the step name will default to the text specified in the run
command.
Commands run using non-login shells by default. You can choose a different shell and customize the shell used to run commands. For more information, see jobs.<job_id>.steps[*].shell
.
Each run
keyword represents a new process and shell in the runner environment. When you provide multi-line commands, each line runs in the same shell. For example:
-
A single-line command:
- name: Install Dependencies run: npm install
-
A multi-line command:
- name: Clean install dependencies and build run: | npm ci npm run build
Using the working-directory
keyword, you can specify the working directory of where to run the command.
- name: Clean temp directory
run: rm -rf *
working-directory: ./temp
Alternatively, you can specify a default working directory for all run
steps in a job, or for all run
steps in the entire workflow. For more information, see "defaults.run
" and "jobs.<job_id>.defaults.run
."
You can also use a run
step to run a script. For more information, see "AUTOTITLE."
You can override the default shell settings in the runner's operating system using the shell
keyword. You can use built-in shell
keywords, or you can define a custom set of shell options. The shell command that is run internally executes a temporary file that contains the commands specified in the run
keyword.
Supported platform | shell parameter |
Description | Command run internally |
---|---|---|---|
Linux / macOS | unspecified | The default shell on non-Windows platforms. Note that this runs a different command to when bash is specified explicitly. If bash is not found in the path, this is treated as sh . |
bash -e {0} |
All | bash |
The default shell on non-Windows platforms with a fallback to sh . When specifying a bash shell on Windows, the bash shell included with Git for Windows is used. |
bash --noprofile --norc -eo pipefail {0} |
All | pwsh |
The PowerShell Core. {% data variables.product.prodname_dotcom %} appends the extension .ps1 to your script name. |
pwsh -command ". '{0}'" |
All | python |
Executes the python command. | python {0} |
Linux / macOS | sh |
The fallback behavior for non-Windows platforms if no shell is provided and bash is not found in the path. |
sh -e {0} |
Windows | cmd |
{% data variables.product.prodname_dotcom %} appends the extension .cmd to your script name and substitutes for {0} . |
%ComSpec% /D /E:ON /V:OFF /S /C "CALL "{0}"" . |
Windows | pwsh |
This is the default shell used on Windows. The PowerShell Core. {% data variables.product.prodname_dotcom %} appends the extension .ps1 to your script name. If your self-hosted Windows runner does not have PowerShell Core installed, then PowerShell Desktop is used instead. |
pwsh -command ". '{0}'" . |
Windows | powershell |
The PowerShell Desktop. {% data variables.product.prodname_dotcom %} appends the extension .ps1 to your script name. |
powershell -command ". '{0}'" . |
steps:
- name: Display the path
shell: bash
run: echo $PATH
steps:
- name: Display the path
shell: cmd
run: echo %PATH%
steps:
- name: Display the path
shell: pwsh
run: echo ${env:PATH}
steps:
- name: Display the path
shell: powershell
run: echo ${env:PATH}
steps:
- name: Display the path
shell: python
run: |
import os
print(os.environ['PATH'])
You can set the shell
value to a template string using command [options] {0} [more_options]
. {% data variables.product.prodname_dotcom %} interprets the first whitespace-delimited word of the string as the command, and inserts the file name for the temporary script at {0}
.
For example:
steps:
- name: Display the environment variables and their values
shell: perl {0}
run: |
print %ENV
The command used, perl
in this example, must be installed on the runner.
{% ifversion ghae %} {% data reusables.actions.self-hosted-runners-software %} {% elsif fpt or ghec %} For information about the software included on GitHub-hosted runners, see "AUTOTITLE." {% endif %}
For built-in shell keywords, we provide the following defaults that are executed by {% data variables.product.prodname_dotcom %}-hosted runners. You should use these guidelines when running shell scripts.
-
bash
/sh
:- By default, fail-fast behavior is enforced using
set -e
for bothsh
andbash
. Whenshell: bash
is specified,-o pipefail
is also applied to enforce early exit from pipelines that generate a non-zero exit status. - You can take full control over shell parameters by providing a template string to the shell options. For example,
bash {0}
. sh
-like shells exit with the exit code of the last command executed in a script, which is also the default behavior for actions. The runner will report the status of the step as fail/succeed based on this exit code.
- By default, fail-fast behavior is enforced using
-
powershell
/pwsh
- Fail-fast behavior when possible. For
pwsh
andpowershell
built-in shell, we will prepend$ErrorActionPreference = 'stop'
to script contents. - We append
if ((Test-Path -LiteralPath variable:\LASTEXITCODE)) { exit $LASTEXITCODE }
to powershell scripts so action statuses reflect the script's last exit code. - Users can always opt out by not using the built-in shell, and providing a custom shell option like:
pwsh -File {0}
, orpowershell -Command "& '{0}'"
, depending on need.
- Fail-fast behavior when possible. For
-
cmd
- There doesn't seem to be a way to fully opt into fail-fast behavior other than writing your script to check each error code and respond accordingly. Because we can't actually provide that behavior by default, you need to write this behavior into your script.
cmd.exe
will exit with the error level of the last program it executed, and it will return the error code to the runner. This behavior is internally consistent with the previoussh
andpwsh
default behavior and is thecmd.exe
default, so this behavior remains intact.
A map
of the input parameters defined by the action. Each input parameter is a key/value pair. Input parameters are set as environment variables. The variable is prefixed with INPUT_
and converted to upper case.
Input parameters defined for a Docker container must use args
. For more information, see "jobs.<job_id>.steps[*].with.args
."
Defines the three input parameters (first_name
, middle_name
, and last_name
) defined by the hello_world
action. These input variables will be accessible to the hello-world
action as INPUT_FIRST_NAME
, INPUT_MIDDLE_NAME
, and INPUT_LAST_NAME
environment variables.
jobs:
my_first_job:
steps:
- name: My first step
uses: actions/hello_world@main
with:
first_name: Mona
middle_name: The
last_name: Octocat
A string
that defines the inputs for a Docker container. {% data variables.product.prodname_dotcom %} passes the args
to the container's ENTRYPOINT
when the container starts up. An array of strings
is not supported by this parameter. A single argument that includes spaces should be surrounded by double quotes ""
.
{% raw %}
steps:
- name: Explain why this job ran
uses: octo-org/action-name@main
with:
entrypoint: /bin/echo
args: The ${{ github.event_name }} event triggered this step.
{% endraw %}
The args
are used in place of the CMD
instruction in a Dockerfile
. If you use CMD
in your Dockerfile
, use the guidelines ordered by preference:
- Document required arguments in the action's README and omit them from the
CMD
instruction. - Use defaults that allow using the action without specifying any
args
. - If the action exposes a
--help
flag, or something similar, use that as the default to make your action self-documenting.
Overrides the Docker ENTRYPOINT
in the Dockerfile
, or sets it if one wasn't already specified. Unlike the Docker ENTRYPOINT
instruction which has a shell and exec form, entrypoint
keyword accepts only a single string defining the executable to be run.
steps:
- name: Run a custom command
uses: octo-org/action-name@main
with:
entrypoint: /a/different/executable
The entrypoint
keyword is meant to be used with Docker container actions, but you can also use it with JavaScript actions that don't define any inputs.
Sets variables for steps to use in the runner environment. You can also set variables for the entire workflow or a job. For more information, see env
and jobs.<job_id>.env
.
{% data reusables.repositories.actions-env-var-note %}
Public actions may specify expected variables in the README file. If you are setting a secret or sensitive value, such as a password or token, you must set secrets using the secrets
context. For more information, see "AUTOTITLE."
{% raw %}
steps:
- name: My first action
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
FIRST_NAME: Mona
LAST_NAME: Octocat
{% endraw %}
Prevents a job from failing when a step fails. Set to true
to allow a job to pass when this step fails.
The maximum number of minutes to run the step before killing the process.
The maximum number of minutes to let a job run before {% data variables.product.prodname_dotcom %} automatically cancels it. Default: 360
If the timeout exceeds the job execution time limit for the runner, the job will be canceled when the execution time limit is met instead. For more information about job execution time limits, see {% ifversion fpt or ghec or ghes %}"AUTOTITLE" for {% data variables.product.prodname_dotcom %}-hosted runners and {% endif %}"AUTOTITLE{% ifversion fpt or ghec or ghes %}" for self-hosted runner usage limits.{% elsif ghae %}."{% endif %}
{% note %}
Note: {% data reusables.actions.github-token-expiration %} For self-hosted runners, the token may be the limiting factor if the job timeout is greater than 24 hours. For more information on the GITHUB_TOKEN
, see "AUTOTITLE."
{% endnote %}
Use jobs.<job_id>.strategy
to use a matrix strategy for your jobs. {% data reusables.actions.jobs.about-matrix-strategy %} For more information, see "AUTOTITLE."
{% data reusables.actions.jobs.using-matrix-strategy %}
{% data reusables.actions.jobs.single-dimension-matrix %}
{% data reusables.actions.jobs.multi-dimension-matrix %}
{% data reusables.actions.jobs.matrix-from-context %}
{% data reusables.actions.jobs.matrix-include %}
{% data reusables.actions.jobs.matrix-expand-with-include %}
{% data reusables.actions.jobs.matrix-add-with-include %}
{% data reusables.actions.jobs.matrix-exclude %}
{% data reusables.actions.jobs.section-using-a-build-matrix-for-your-jobs-failfast %}
{% data reusables.actions.jobs.section-using-a-build-matrix-for-your-jobs-max-parallel %}
Prevents a workflow run from failing when a job fails. Set to true
to allow a workflow run to pass when this job fails.
You can allow specific jobs in a job matrix to fail without failing the workflow run. For example, if you wanted to only allow an experimental job with node
set to 15
to fail without failing the workflow run.
{% raw %}
runs-on: ${{ matrix.os }}
continue-on-error: ${{ matrix.experimental }}
strategy:
fail-fast: false
matrix:
node: [13, 14]
os: [macos-latest, ubuntu-latest]
experimental: [false]
include:
- node: 15
os: ubuntu-latest
experimental: true
{% endraw %}
{% data reusables.actions.docker-container-os-support %}
{% data reusables.actions.jobs.section-running-jobs-in-a-container %}
{% data reusables.actions.jobs.section-running-jobs-in-a-container-image %}
{% data reusables.actions.jobs.section-running-jobs-in-a-container-credentials %}
{% data reusables.actions.jobs.section-running-jobs-in-a-container-env %}
{% data reusables.actions.jobs.section-running-jobs-in-a-container-ports %}
{% data reusables.actions.jobs.section-running-jobs-in-a-container-volumes %}
{% data reusables.actions.jobs.section-running-jobs-in-a-container-options %}
{% data reusables.actions.docker-container-os-support %}
Used to host service containers for a job in a workflow. Service containers are useful for creating databases or cache services like Redis. The runner automatically creates a Docker network and manages the life cycle of the service containers.
If you configure your job to run in a container, or your step uses container actions, you don't need to map ports to access the service or action. Docker automatically exposes all ports between containers on the same Docker user-defined bridge network. You can directly reference the service container by its hostname. The hostname is automatically mapped to the label name you configure for the service in the workflow.
If you configure the job to run directly on the runner machine and your step doesn't use a container action, you must map any required Docker service container ports to the Docker host (the runner machine). You can access the service container using localhost and the mapped port.
For more information about the differences between networking service containers, see "AUTOTITLE."
This example creates two services: nginx and redis. When you specify the Docker host port but not the container port, the container port is randomly assigned to a free port. {% data variables.product.prodname_dotcom %} sets the assigned container port in the {% raw %}${{job.services.<service_name>.ports}}
{% endraw %} context. In this example, you can access the service container ports using the {% raw %}${{ job.services.nginx.ports['8080'] }}
{% endraw %} and {% raw %}${{ job.services.redis.ports['6379'] }}
{% endraw %} contexts.
services:
nginx:
image: nginx
# Map port 8080 on the Docker host to port 80 on the nginx container
ports:
- 8080:80
redis:
image: redis
# Map TCP port 6379 on Docker host to a random free port on the Redis container
ports:
- 6379/tcp
The Docker image to use as the service container to run the action. The value can be the Docker Hub image name or a registry name.
{% data reusables.actions.registry-credentials %}
{% raw %}
services:
myservice1:
image: ghcr.io/owner/myservice1
credentials:
username: ${{ github.actor }}
password: ${{ secrets.github_token }}
myservice2:
image: dockerhub_org/myservice2
credentials:
username: ${{ secrets.DOCKER_USER }}
password: ${{ secrets.DOCKER_PASSWORD }}
{% endraw %}
Sets a map
of environment variables in the service container.
Sets an array
of ports to expose on the service container.
Sets an array
of volumes for the service container to use. You can use volumes to share data between services or other steps in a job. You can specify named Docker volumes, anonymous Docker volumes, or bind mounts on the host.
To specify a volume, you specify the source and destination path:
<source>:<destinationPath>
.
The <source>
is a volume name or an absolute path on the host machine, and <destinationPath>
is an absolute path in the container.
volumes:
- my_docker_volume:/volume_mount
- /data/my_data
- /source/directory:/destination/directory
Additional Docker container resource options. For a list of options, see "docker create
options."
{% warning %}
Warning: The --network
option is not supported.
{% endwarning %}
The location and version of a reusable workflow file to run as a job. Use one of the following syntaxes:
{% data reusables.actions.reusable-workflow-calling-syntax %}
{% data reusables.actions.uses-keyword-example %}
For more information, see "AUTOTITLE."
When a job is used to call a reusable workflow, you can use with
to provide a map of inputs that are passed to the called workflow.
Any inputs that you pass must match the input specifications defined in the called workflow.
Unlike jobs.<job_id>.steps[*].with
, the inputs you pass with jobs.<job_id>.with
are not available as environment variables in the called workflow. Instead, you can reference the inputs by using the inputs
context.
jobs:
call-workflow:
uses: octo-org/example-repo/.github/workflows/called-workflow.yml@main
with:
username: mona
A pair consisting of a string identifier for the input and the value of the input. The identifier must match the name of an input defined by on.workflow_call.inputs.<inputs_id>
in the called workflow. The data type of the value must match the type defined by on.workflow_call.inputs.<input_id>.type
in the called workflow.
Allowed expression contexts: github
, and needs
.
When a job is used to call a reusable workflow, you can use secrets
to provide a map of secrets that are passed to the called workflow.
Any secrets that you pass must match the names defined in the called workflow.
{% raw %}
jobs:
call-workflow:
uses: octo-org/example-repo/.github/workflows/called-workflow.yml@main
secrets:
access-token: ${{ secrets.PERSONAL_ACCESS_TOKEN }}
{% endraw %}
{% ifversion actions-inherit-secrets-reusable-workflows %}
Use the inherit
keyword to pass all the calling workflow's secrets to the called workflow. This includes all secrets the calling workflow has access to, namely organization, repository, and environment secrets. The inherit
keyword can be used to pass secrets across repositories within the same organization, or across organizations within the same enterprise.
{% raw %}
on:
workflow_dispatch:
jobs:
pass-secrets-to-workflow:
uses: ./.github/workflows/called-workflow.yml
secrets: inherit
on:
workflow_call:
jobs:
pass-secret-to-action:
runs-on: ubuntu-latest
steps:
- name: Use a repo or org secret from the calling workflow.
run: echo ${{ secrets.CALLING_WORKFLOW_SECRET }}
{% endraw %}
A pair consisting of a string identifier for the secret and the value of the secret. The identifier must match the name of a secret defined by on.workflow_call.secrets.<secret_id>
in the called workflow.
Allowed expression contexts: github
, needs
, and secrets
.
{% endif %}
You can use special characters in path, branch, and tag filters.
*
: Matches zero or more characters, but does not match the/
character. For example,Octo*
matchesOctocat
.**
: Matches zero or more of any character.?
: Matches zero or one of the preceding character.+
: Matches one or more of the preceding character.[]
Matches one character listed in the brackets or included in ranges. Ranges can only includea-z
,A-Z
, and0-9
. For example, the range[0-9a-z]
matches any digit or lowercase letter. For example,[CB]at
matchesCat
orBat
and[1-2]00
matches100
and200
.!
: At the start of a pattern makes it negate previous positive patterns. It has no special meaning if not the first character.
The characters *
, [
, and !
are special characters in YAML. If you start a pattern with *
, [
, or !
, you must enclose the pattern in quotes. Also, if you use a flow sequence with a pattern containing [
and/or ]
, the pattern must be enclosed in quotes.
# Valid
paths:
- '**/README.md'
# Invalid - creates a parse error that
# prevents your workflow from running.
paths:
- **/README.md
# Valid
branches: [ main, 'release/v[0-9].[0-9]' ]
# Invalid - creates a parse error
branches: [ main, release/v[0-9].[0-9] ]
For more information about branch, tag, and path filter syntax, see "on.<push>.<branches|tags>
", "on.<pull_request>.<branches|tags>
", and "on.<push|pull_request>.paths
."
Pattern | Description | Example matches |
---|---|---|
feature/* |
The * wildcard matches any character, but does not match slash (/ ). |
feature/my-branch feature/your-branch |
feature/** |
The ** wildcard matches any character including slash (/ ) in branch and tag names. |
feature/beta-a/my-branch feature/your-branch feature/mona/the/octocat |
main releases/mona-the-octocat |
Matches the exact name of a branch or tag name. | main releases/mona-the-octocat |
'*' |
Matches all branch and tag names that don't contain a slash (/ ). The * character is a special character in YAML. When you start a pattern with * , you must use quotes. |
main releases |
'**' |
Matches all branch and tag names. This is the default behavior when you don't use a branches or tags filter. |
all/the/branches every/tag |
'*feature' |
The * character is a special character in YAML. When you start a pattern with * , you must use quotes. |
mona-feature feature ver-10-feature |
v2* |
Matches branch and tag names that start with v2 . |
v2 v2.0 v2.9 |
v[12].[0-9]+.[0-9]+ |
Matches all semantic versioning branches and tags with major version 1 or 2. | v1.10.1 v2.0.0 |
Path patterns must match the whole path, and start from the repository's root.
Pattern | Description of matches | Example matches |
---|---|---|
'*' |
The * wildcard matches any character, but does not match slash (/ ). The * character is a special character in YAML. When you start a pattern with * , you must use quotes. |
README.md server.rb |
'*.jsx?' |
The ? character matches zero or one of the preceding character. |
page.js page.jsx |
'**' |
The ** wildcard matches any character including slash (/ ). This is the default behavior when you don't use a path filter. |
all/the/files.md |
'*.js' |
The * wildcard matches any character, but does not match slash (/ ). Matches all .js files at the root of the repository. |
app.js index.js |
'**.js' |
Matches all .js files in the repository. |
index.js js/index.js src/js/app.js |
docs/* |
All files within the root of the docs directory, at the root of the repository. |
docs/README.md docs/file.txt |
docs/** |
Any files in the /docs directory at the root of the repository. |
docs/README.md docs/mona/octocat.txt |
docs/**/*.md |
A file with a .md suffix anywhere in the docs directory. |
docs/README.md docs/mona/hello-world.md docs/a/markdown/file.md |
'**/docs/**' |
Any files in a docs directory anywhere in the repository. |
docs/hello.md dir/docs/my-file.txt space/docs/plan/space.doc |
'**/README.md' |
A README.md file anywhere in the repository. | README.md js/README.md |
'**/*src/**' |
Any file in a folder with a src suffix anywhere in the repository. |
a/src/app.js my-src/code/js/app.js |
'**/*-post.md' |
A file with the suffix -post.md anywhere in the repository. |
my-post.md path/their-post.md |
'**/migrate-*.sql' |
A file with the prefix migrate- and suffix .sql anywhere in the repository. |
migrate-10909.sql db/migrate-v1.0.sql db/sept/migrate-v1.sql |
'*.md' '!README.md' |
Using an exclamation mark (! ) in front of a pattern negates it. When a file matches a pattern and also matches a negative pattern defined later in the file, the file will not be included. |
hello.md Does not match README.md docs/hello.md |
'*.md' '!README.md' README* |
Patterns are checked sequentially. A pattern that negates a previous pattern will re-include file paths. | hello.md README.md README.doc |