chore: Update Slack announcement GH Action.

Signed-off-by: Paulo Vital <paulo.vital@ibm.com>

Author: pvital

.github/scripts/announce_release_on_slack.py

@@ -0,0 +1,92 @@
+#!/usr/bin/env python3
+
+import logging
+import os
+import sys
+
+import httpx
+from github import Github
+
+
+def ensure_environment_variables_are_present() -> None:
+    required_env_vars = (
+        "GITHUB_RELEASE_TAG",
+        "GITHUB_TOKEN",
+        "SLACK_TOKEN",
+        "SLACK_SERVICE",
+        "SLACK_TEAM",
+    )
+
+    for env_var in required_env_vars:
+        if env_var not in os.environ:
+            logging.fatal(f"❌ A required environment variable is missing: {env_var}")
+            sys.exit(1)
+
+
+def get_gh_release_info_text_with_token(release_tag: str, access_token: str) -> str:
+    gh = Github(access_token)
+    repo_name = "instana/python-sensor"
+    repo = gh.get_repo(repo_name)
+    release = repo.get_release(release_tag)
+
+    logging.info("GH Release fetched successfully %s", release)
+
+    msg = (
+        f":mega: Oyez! Oyez! Oyez!\n"
+        f":package: A new version of the Python Tracer has been released.\n"
+        f"Name: Instana Python Tracer {release.title}\n"
+        f"Tag: {release.tag_name}\n"
+        f"Created at: {release.created_at}\n"
+        f"Published at: {release.published_at}\n"
+        f"{release.body}\n"
+    )
+
+    logging.info(msg)
+    return msg
+
+
+def post_on_slack_channel(
+    slack_team: str, slack_service: str, slack_token: str, message_text: str
+) -> None:
+    """Send a message to Slack channel."""
+
+    url = (
+        f"https://hooks.slack.com/services/T{slack_team}/B{slack_service}/{slack_token}"
+    )
+
+    headers = {
+        "Content-Type": "application/json",
+    }
+    body = {"text": message_text}
+
+    with httpx.Client() as client:
+        response = client.post(url, headers=headers, json=body)
+        response.raise_for_status()
+
+        result = response.text
+        if "ok" in result:
+            print("✅ Slack message sent successfully")
+        else:
+            print(f"❌ Slack API error: {result}")
+
+
+def main() -> None:
+    # Setting this globally to DEBUG will also debug PyGithub,
+    # which will produce even more log output
+    logging.basicConfig(level=logging.INFO)
+    ensure_environment_variables_are_present()
+
+    msg = get_gh_release_info_text_with_token(
+        os.environ["GITHUB_RELEASE_TAG"], os.environ["GITHUB_TOKEN"]
+    )
+
+    post_on_slack_channel(
+        os.environ["SLACK_TEAM"],
+        os.environ["SLACK_SERVICE"],
+        os.environ["SLACK_TOKEN"],
+        msg,
+    )
+
+
+if __name__ == "__main__":
+    main()

.github/workflows/release-notification-on-slack.yml

@@ -9,26 +9,57 @@ on:
 
   # https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows#release
   release:
-    types: [published]
+    types: [published, released]
 jobs:
-  build:
-    name: Slack Post
+  notify-slack:
     runs-on: ubuntu-latest
+
     steps:
-      - name: 'Checkout the needed file only ./bin/announce_release_on_slack.py'
-        uses: actions/checkout@v3
-      - run: |
-          if [[ ${{ github.event_name == 'workflow_dispatch' }} == true ]]; then
-            export GITHUB_RELEASE_TAG=${{ inputs.github_ref }}
-          else # release event
-            export GITHUB_RELEASE_TAG=$(basename ${GITHUB_REF})
-          fi
-          echo "New release published ${GITHUB_RELEASE_TAG}"
-          pip3 install PyGithub
-          echo $PWD
-          ls -lah
-          ./bin/announce_release_on_slack.py
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          SLACK_BOT_TOKEN: ${{ secrets.SLACK_BOT_TOKEN }}
-          SLACK_CHANNEL_ID_RELEASES: ${{ secrets.SLACK_CHANNEL_ID_RELEASES }}
+    - name: Checkout code
+      uses: actions/checkout@v4
+      with:
+        fetch-depth: 0  # Fetch all history to access commit messages
+
+    - name: Set up Python
+      uses: actions/setup-python@v4
+      with:
+        python-version: '3.13'
+
+    - name: Install dependencies
+      run: |
+        pip install httpx PyGithub
+
+    # Set environment variables safely
+    - name: Set event name
+      id: set-event-name
+      env:
+        EVENT_NAME: ${{ github.event_name }}
+      run: echo "EVENT_NAME=$EVENT_NAME" >> $GITHUB_ENV
+
+    # Handle workflow_dispatch event
+    - name: Set GitHub ref for workflow dispatch
+      if: ${{ github.event_name == 'workflow_dispatch' }}
+      env:
+        INPUT_REF: ${{ inputs.github_ref }}
+      run: echo "GITHUB_RELEASE_TAG=$INPUT_REF" >> $GITHUB_ENV
+
+    # Handle release event
+    - name: Set GitHub ref for release event
+      if: ${{ github.event_name != 'workflow_dispatch' }}
+      env:
+        GH_REF: ${{ github.ref }}
+      run: |
+        REF_NAME=$(basename "$GH_REF")
+        echo "GITHUB_RELEASE_TAG=$REF_NAME" >> $GITHUB_ENV
+
+    # Send notification using the safely set environment variables
+    - name: Send Slack notification
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        SLACK_TOKEN: ${{ secrets.RUPY_TRACER_RELEASES_TOKEN }}
+        SLACK_SERVICE: ${{ secrets.RUPY_TRACER_RELEASES_CHANNEL_ID }}
+        SLACK_TEAM: ${{ secrets.RUPY_TOWN_CRIER_SERVICE_ID }}
+      run: |
+        echo "New release published ${GITHUB_RELEASE_TAG}"
+        python .github/scripts/announce_release_on_slack.py
+