Notify Slack Action

Send Github Actions workflow status notifications to Slack regarding failures, warnings or even success. You can read more about the action in our blog post.

Features

Ability to control when to send notification
Custom Notification Title, Message and Footer using template variables
Mention Users and control when to mention them
Mention Users Groups and control when to mention them
Customize icons based on the action status

Example workflows

Minimal workflow

steps:
  - uses: ravsamhq/notify-slack-action@v2
    if: always()
    with:
      status: ${{ job.status }} # required
    env:
      SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }} # required

Running a workflow only on the specified branch

To run the notifier for a specific branch, you can utilize the either github.ref_name for pushes or github.head_ref for pull requests. For example, if you want to run the notifier only on the origin/main branch for pushes the following would constrain the workflow to that branch:

steps:
  - name: Notify Slack Action
    uses: ravsamhq/notify-slack-action@2.3.0
    if: ${{ always() && github.ref_name == 'main' }}
    with:
      status: ${{ job.status }}
      notify_when: "failure"
      notification_title: "{workflow} is failing"
    env:
      SLACK_WEBHOOK_URL: ${{ secrets.ACTION_MONITORING_SLACK }}

Extended Example without User Mentions

steps:
  - uses: ravsamhq/notify-slack-action@v2
    if: always()
    with:
      status: ${{ job.status }}
      token: ${{ secrets.GITHUB_TOKEN }}
      notification_title: "{workflow} has {status_message}"
      message_format: "{emoji} *{workflow}* {status_message} in <{repo_url}|{repo}>"
      footer: "Linked Repo <{repo_url}|{repo}> | <{workflow_url}|View Workflow>"
    env:
      SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}

Extended Example with User Mentions

steps:
  - uses: ravsamhq/notify-slack-action@v2
    if: always()
    with:
      status: ${{ job.status }}
      notification_title: "{workflow} has {status_message}"
      message_format: "{emoji} *{workflow}* {status_message} in <{repo_url}|{repo}>"
      footer: "Linked Repo <{repo_url}|{repo}>"
      notify_when: "failure"
      mention_users: "U0160UUNH8S,U0080UUAA9N"
      mention_users_when: "failure,warnings"
    env:
      SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}

To get the Slack Member IDs, open the User profile you want to mention. Click More and Copy Member ID.

Extended Example with Users Groups Mentions

steps:
  - uses: ravsamhq/notify-slack-action@v2
    if: always()
    with:
      status: ${{ job.status }}
      notification_title: "{workflow} has {status_message}"
      message_format: "{emoji} *{workflow}* {status_message} in <{repo_url}|{repo}>"
      footer: "Linked Repo <{repo_url}|{repo}>"
      notify_when: "failure"
      mention_users: "U0160UUNH8S,U0080UUAA9N"
      mention_users_when: "failure,warnings"
      mention_groups: "SAZ94GDB8"
      mention_groups_when: "failure,warnings"
    env:
      SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}

To mention a channel, you can configure the mention_groups key like:

mention_groups: "SAZ94GDB8,!channel"

The following variables are available for formatting your own strings.

{branch}
{branch_url}
{commit_url}
{commit_sha}
{emoji}
{repo}
{repo_url}
{status_message}
{run_url}
{job}
{workflow}
{workflow_url}

You can use these to construct custom notification_title, message_format and footer.

In order to use {workflow_url}, specify the token input as token: ${{ secrets.GITHUB_TOKEN }}.

The above mentioned strings are available by default. However, you can use the following method to use any kind of data available in GitHub Actions:

Add the following step to get all the information related to your GitHub context

steps:
  - run: echo "${{ toJson(github) }}"

Then you can reference the github object properties:

github.event.head_commit.author.name
github.event.head_commit.message

steps:
  - uses: ravsamhq/notify-slack-action@v2
    if: always()
    with:
      ...
      message_format: '{emoji} ${{ github.event.head_commit.author.name }} ${{ github.event.head_commit.message }}'
    env:
      SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}

Inputs

status:
  description: Job Status
  required: true

token:
  description: Github Token for accessing workflow url
  required: false
  default: ""

notification_title:
  description: Specify on the notification message title
  required: false
  default: "New Github Action Run"

message_format:
  description: Specify on the notification message format
  required: false
  default: "{emoji} *{workflow}* {status_message} in <{repo_url}|{repo}@{branch}> on <{commit_url}|{commit_sha}>"

footer:
  description: Specify the footer of the message
  required: false
  default: "<{run_url}|View Run> | Developed by <https://www.ravsam.in|RavSam>"

notify_when:
  description: Specify on which events a slack notification is sent
  required: false
  default: "success,failure,cancelled,warnings,skipped"

mention_users:
  description: Specify the slack IDs of users you want to mention.
  required: false
  default: ""

mention_users_when:
  description: Specify on which events you want to mention the users
  required: false
  default: "success,failure,cancelled,warnings,skipped"

mention_groups:
  description: Specify the slack IDs of groups you want to mention
  required: false
  default: ""

mention_groups_when:
  description: Specify on which events you want to mention the groups
  required: false
  default: "success,failure,cancelled,warnings,skipped"

icon_success:
  description: Specify on icon to be used when event is success
  required: false
  default: ":heavy_check_mark:"

icon_failure:
  description: Specify on icon to be used when event is failure
  required: false
  default: ":x:"

icon_cancelled:
  description: Specify on icon to be used when event is cancelled
  required: false
  default: ":x:"

icon_warnings:
  description: Specify on icon to be used when event is warnings
  required: false
  default: ":large_orange_diamond:"

icon_skipped:
  description: Specify on icon to be used when event is skipped
  required: false
  default: ":fast_forward:"

Development

Follow these instructions to get the project up and running:

# clone the repo
git clone https://github.com/ravsamhq/notify-slack-action.git

# change directory
cd notify-slack-action

# install dependencies
npm install

Versioning

This project uses SemVer for versioning. For the versions available, see the tags on this repository.

Authors

Ravgeet Dhillon

Contributors

Special shoutout to Vlad Pronsky for porting the original Python based code to Typescript.

Extra

We are open for issues and feature requests.
In case you get stuck at somewhere, feel free to contact at our Mail.