updates-notification.yml

name: Send update notification

on:
  workflow_call:
    inputs:
      tag:
        required: true
        type: string
      version:
        required: true
        type: string
      image_digest:
        required: true
        type: string
      slack_webhook_url:
        required: true
        type: string

defaults:
  run:
    shell: bash

permissions:
  contents: read

jobs:
  send-notifications:
    name: Send Notifications
    runs-on: ubuntu-22.04
    permissions:
      contents: read
      actions: read # for 8398a7/action-slack
    steps:
      - name: Checkout Repository
        uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
        with:
          ref: refs/tags/v${{ inputs.tag }}

      - name: Get variables for Slack
        id: slack
        run: |
          echo "message=$(git log -1 --pretty=%s)" >> $GITHUB_OUTPUT
          echo "date=$(date +%s)" >> $GITHUB_OUTPUT
          echo "sha_short=$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT
          echo "sha_long=$(git rev-parse HEAD)" >> $GITHUB_OUTPUT

      - name: Send Notification
        uses: 8398a7/action-slack@28ba43ae48961b90635b50953d216767a6bea486 # v3.16.2
        with:
          status: custom
          custom_payload: |
            {
              username: "Docker",
              icon_emoji: ":docker:",
              mention: "here",
              attachments: [{
                title: `New Docker image was pushed to DockerHub for ${process.env.AS_REPO}`,
                color: "good",
                fields: [{
                  title: "Docker Image",
                  value: `<https://hub.docker.com/r/nginx/nginx-ingress/tags?page=1&ordering=last_updated&name=${{ inputs.tag }}|nginx/nginx-ingress:${{ inputs.version }}>`,
                  short: true
                },
                {
                  title: "Image digest",
                  value: "${{ inputs.image_digest }}",
                  short: true
                },
                {
                  title: "Commit Message",
                  value: `${{ steps.slack.outputs.message }}`,
                  short: true
                },
                {
                  title: "Commit Hash",
                  value: `<https://github.com/${{ github.repository }}/commit/${{ steps.slack.outputs.sha_long }}|${{ steps.slack.outputs.sha_short }}>`,
                  short: true
                }],
                footer: "Update DockerHub Image",
                footer_icon: "https://raw.githubusercontent.com/docker-library/docs/c350af05d3fac7b5c3f6327ac82fe4d990d8729c/docker/logo.png",
                ts: ${{ steps.slack.outputs.date }}
              }]
            }
        env:
          SLACK_WEBHOOK_URL: ${{ inputs.slack_webhook_url }}