Add workflow that autocomments jira link (#1920)

Author: paoloredis

.github/workflows/autocomment_jira_link.yaml

@@ -0,0 +1,54 @@
+name: autocomment_jira_link
+
+on:
+  pull_request:
+    paths:
+    - 'content/**'
+    types:
+      - opened
+permissions:
+  pull-requests: write
+  contents: read
+
+jobs:
+  auto-comment:
+    runs-on: ubuntu-latest
+    steps:
+      - name: 'Checkout'
+        uses: 'actions/checkout@v3'
+
+      - name: Create Comment
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          PR_NUMBER: ${{ github.event.pull_request.number }}
+          REPO: ${{ github.repository }}
+          BRANCH_NAME: ${{ github.event.pull_request.head.ref }}
+        run: |
+          set -e
+
+          CREATE_COMMENT_URL="https://api.github.com/repos/${REPO}/issues/${PR_NUMBER}/comments"
+          
+          JIRA_TICKET=$(grep -Eo '^DOC-[0-9]+' <<< "$BRANCH_NAME")
+          JIRA_LINK="https://redislabs.atlassian.net/browse/${JIRA_TICKET}"
+          COMMENT="[${JIRA_TICKET}](${JIRA_LINK})"
+          
+          generate_post_data()
+          {
+            cat <<EOF
+          {
+            "body": "$COMMENT"
+          EOF
+          }
+
+          if [[ "$BRANCH_NAME" == DOC-* ]]; then
+            # Write comment on pull request
+            curl -Ls \
+              -X POST \
+              -H "Accept: application/vnd.github+json" \
+              -H "X-GitHub-Api-Version: 2022-11-28" \
+              -H "Authorization: token ${GITHUB_TOKEN}" \
+              $CREATE_COMMENT_URL \
+              --data "$(generate_post_data)" 1>/dev/null
+
+            printf '%s\n' 'Comment written!'
+          fi