Easily integrate custom Slack notifications into your CircleCI projects. Create custom alert messages for any job or receive status updates.

Learn more about orbs.

Example config:

orbs:
  slack: circleci/[email protected]

jobs:
  build:
    docker:
      - image: <docker image>
    steps:
      - slack/<command>

[email protected] from the circleci namespace is imported into slack which can then be referenced in a step in any job you require.

• Notify

Example:

jobs:
  alertme:
    docker:
      - image: circleci/node
    steps:
      - slack/notify:
            message: "This is a custom message notification" #Enter your own message
            mentions: "USERID1,USERID2" #Enter the Slack IDs of any users who should be alerted to this message.
            color: "#42e2f4" #Assign custom colors for each notification
            webhook: "webhook" #Enter a specific webhook here or the default will use $SLACK_WEBHOOK

See Slack's Basic message formatting documentation for guidance on formatting notification messages.

• Status

Example:

jobs:
  alertme:
    docker:
      - image: circleci/node
    steps:
      - slack/status:
            mentions: "USERID1,USERID2" #Enter the Slack IDs of any users who should be alerted to this message.
            fail_only: "true" #Optional: if set to "true" then only failure messages will occur.
            webhook: "webhook" #Enter a specific webhook here or the default will use $SLACK_WEBHOOK

How to get your Slack Webhook: Full instructions can be found at Slack: https://api.slack.com/incoming-webhooks

1. Create Slack App. This will also be the name of the "user" that posts alerts to Slack. You'll be asked for which Workspace this app belongs to.
2. In the settings for the app, enable Incoming Webhooks
3. In the left hand panel of your Slack app settings, under Features click Incoming Webhooks
4. Click Add New Webhook to Workspace. You will be asked to pick a channel for the webhook here.
5. Done! A webhook URL will be created.

What to do with Slack Webhook: You can implement the Webhook in one of two ways, as an environment variable, or as a parameter.

1. In the settings page for your project on CircleCI, click Environment Variables. From that page you can click the Add Variable button. Finally, enter your webhook as the value, and SLACK_WEBHOOK as the name.
2. You can enter the Webhook for the individual status or alert by entering is at the webhook parameter, as shown above.