Revert "Migrate slack notifications to GChat"

This reverts commits:
- 5d335ccf8d
- a5b1dec99a

.github/workflows/continuous-integration-workflow.yml

@@ -209,11 +209,26 @@ jobs:
         run: |
           echo "Tagging and publishing $REPO@$VERSION release on GitHub."
           ./gradlew createGitHubRelease -PnextVersion=$VERSION -Pbranch=$BRANCH -PcreateRelease=true -PgitHubAccessToken=$TOKEN
-      - name: Announce Release on GChat
+      - name: Announce Release on Slack
+        id: spring-security-announcing
+        uses: slackapi/slack-github-action@v1.26.0
+        with:
+          payload: |
+            {
+              "text": "spring-security-announcing `${{ env.VERSION }}` is available now",
+              "blocks": [
+                {
+                  "type": "section",
+                  "text": {
+                    "type": "mrkdwn",
+                    "text": "spring-security-announcing `${{ env.VERSION }}` is available now"
+                  }
+                }
+              ]
+            }
         env:
-          WEBHOOK_URL: ${{ secrets.SPRING_RELEASE_GCHAT_WEBHOOK_URL }}
-        run: |
-          curl -X POST '$WEBHOOK_URL' -H 'Content-Type: application/json' -d '{ text: "spring-security-announcing `$VERSION` is available now" }' || true
+          SLACK_WEBHOOK_URL: ${{ secrets.SPRING_RELEASE_SLACK_WEBHOOK_URL }}
+          SLACK_WEBHOOK_TYPE: INCOMING_WEBHOOK
       - name: Setup git config
         run: |
           git config user.name 'github-actions[bot]'
@@ -245,16 +260,20 @@ jobs:
           distribution: 'adopt'
       - name: Schedule next release (if not already scheduled)
         run: ./gradlew scheduleNextRelease -PnextVersion=$VERSION -PgitHubAccessToken=$TOKEN
-  send-notification:
-    name: Send Notification
-    needs: [ perform_release, perform_post_release ]
+  notify_result:
+    name: Check for failures
+    needs: [perform_release, perform_post_release]
     if: failure()
     runs-on: ubuntu-latest
+    permissions:
+      actions: read
     steps:
-      - name: Send Notification
-        uses: spring-io/spring-security-release-tools/.github/actions/send-notification@v1
+      - name: Send Slack message
+        # Workaround while waiting for Gamesight/slack-workflow-status#38 to be fixed
+        # See https://github.com/Gamesight/slack-workflow-status/issues/38
+        uses: sjohnr/slack-workflow-status@v1-beta
         with:
-          webhook-url: ${{ secrets.SPRING_SECURITY_CI_GCHAT_WEBHOOK_URL }}
-          status: ${{ job.status }}
-          build-scan-url: ${{ steps.build-and-publish.outputs.build-scan-url }}
-          run-name: ${{ format('spring-security/{0}', github.ref_name) }}
+          repo_token: ${{ secrets.GITHUB_TOKEN }}
+          slack_webhook_url: ${{ secrets.SLACK_WEBHOOK_URL }}
+          channel: '#spring-security-ci'
+          name: 'CI Notifier'

.github/workflows/milestone-spring-releasetrain.yml

@@ -8,7 +8,7 @@ env:
 permissions:
   contents: read
 jobs:
-  spring-releasetrain-checks:
+  spring-releasetrain-checks:    
     name: Check DueOn is on a Release Date
     runs-on: ubuntu-latest
     if: ${{ github.repository == 'spring-projects/spring-security' }}
@@ -23,16 +23,18 @@ jobs:
         export TOOL_VERSION=0.1.1
         wget "https://repo.maven.apache.org/maven2/io/spring/releasetrain/spring-release-train-tools/$TOOL_VERSION/spring-release-train-tools-$TOOL_VERSION.jar"
         java -cp "spring-release-train-tools-$TOOL_VERSION.jar" io.spring.releasetrain.CheckMilestoneDueOnMain --dueOn "$DUE_ON" --expectedDayOfWeek MONDAY --expectedMondayCount 3
-  send-notification:
-    name: Send Notification
-    needs: [ spring-releasetrain-checks ]
+  notify_result:
+    name: Check for failures
+    needs: [spring-releasetrain-checks]
     if: failure()
     runs-on: ubuntu-latest
+    permissions:
+      actions: read
     steps:
-      - name: Send Notification
-        uses: spring-io/spring-security-release-tools/.github/actions/send-notification@v1
+      - name: Send Slack message
+        uses: Gamesight/slack-workflow-status@v1.3.0
         with:
-          webhook-url: ${{ secrets.SPRING_SECURITY_CI_GCHAT_WEBHOOK_URL }}
-          status: ${{ job.status }}
-          build-scan-url: ${{ steps.build-and-publish.outputs.build-scan-url }}
-          run-name: ${{ format('spring-security/{0}', github.ref_name) }}
+          repo_token: ${{ secrets.GITHUB_TOKEN }}
+          slack_webhook_url: ${{ secrets.SLACK_WEBHOOK_URL }}
+          channel: '#spring-security-ci'
+          name: 'CI Notifier'

.github/workflows/update-scheduled-release-version.yml

@@ -4,6 +4,7 @@ on:
   workflow_dispatch: # Manual trigger only. Triggered by release-scheduler.yml on main.
 
 env:
+  SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
   DEVELOCITY_ACCESS_KEY: ${{ secrets.GRADLE_ENTERPRISE_SECRET_ACCESS_KEY }}
 
 permissions:
@@ -57,11 +58,12 @@ jobs:
           git tag $updatedVersion
           git push
           git push origin $updatedVersion
-      - name: Send Notification
+      - id: send-slack-notification
+        name: Send Slack message
         if: failure()
-        uses: spring-io/spring-security-release-tools/.github/actions/send-notification@v1
+        uses: Gamesight/slack-workflow-status@v1.3.0
         with:
-          webhook-url: ${{ secrets.SPRING_SECURITY_CI_GCHAT_WEBHOOK_URL }}
-          status: ${{ job.status }}
-          build-scan-url: ${{ steps.build-and-publish.outputs.build-scan-url }}
-          run-name: ${{ format('spring-security/{0}', github.ref_name) }}
+          repo_token: ${{ secrets.GITHUB_TOKEN }}
+          slack_webhook_url: ${{ secrets.SLACK_WEBHOOK_URL }}
+          channel: '#spring-security-ci'
+          name: 'CI Notifier'