From 9556311bb369493f71e76519f7e2e17bd43d6bca Mon Sep 17 00:00:00 2001
From: Chenyang Ji <cyji@amazon.com>
Date: Tue, 5 Nov 2024 13:40:02 -0800
Subject: [PATCH] add github workflow for backport

Signed-off-by: Chenyang Ji <cyji@amazon.com>
---
 .github/workflows/add-untriaged.yml          |  3 ++
 .github/workflows/backport.yml               | 40 ++++++++++++++++++++
 .github/workflows/build-and-test.yml         |  1 +
 .github/workflows/delete-backport-branch.yml | 15 ++++++++
 4 files changed, 59 insertions(+)
 create mode 100644 .github/workflows/backport.yml
 create mode 100644 .github/workflows/delete-backport-branch.yml

diff --git a/.github/workflows/add-untriaged.yml b/.github/workflows/add-untriaged.yml
index 9dcc702..95cd4bf 100644
--- a/.github/workflows/add-untriaged.yml
+++ b/.github/workflows/add-untriaged.yml
@@ -4,6 +4,9 @@ on:
   issues:
     types: [opened, reopened, transferred]
 
+env:
+  ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION: true
+
 jobs:
   apply-label:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/backport.yml b/.github/workflows/backport.yml
new file mode 100644
index 0000000..2a95177
--- /dev/null
+++ b/.github/workflows/backport.yml
@@ -0,0 +1,40 @@
+name: Backport
+on:
+  pull_request_target:
+    types:
+      - closed
+      - labeled
+
+jobs:
+  backport:
+    name: Backport
+    runs-on: ubuntu-latest
+    # Only react to merged PRs for security reasons.
+    # See https://docs.github.com/en/actions/using-workflows/events-that-trigger-workflows#pull_request_target.
+    if: >
+      github.event.pull_request.merged
+      && (
+        github.event.action == 'closed'
+        || (
+          github.event.action == 'labeled'
+          && contains(github.event.label.name, 'backport')
+        )
+      )
+    permissions:
+      contents: write
+      pull-requests: write
+    steps:
+      - name: GitHub App token
+        id: github_app_token
+        uses: tibdex/github-app-token@v2.1.0
+        with:
+          app_id: ${{ secrets.APP_ID }}
+          private_key: ${{ secrets.APP_PRIVATE_KEY }}
+          installation_id: 22958780
+
+      - name: Backport
+        uses: VachaShah/backport@v2.2.0
+        with:
+          github_token: ${{ steps.github_app_token.outputs.token }}
+          head_template: backport/backport-<%= number %>-to-<%= base %>
+          failure_labels: backport-failed
diff --git a/.github/workflows/build-and-test.yml b/.github/workflows/build-and-test.yml
index 44852bd..0c33441 100644
--- a/.github/workflows/build-and-test.yml
+++ b/.github/workflows/build-and-test.yml
@@ -8,6 +8,7 @@ on:
       - "*"
 env:
   OPENSEARCH_DASHBOARDS_VERSION: 'main'
+  ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION: true
 
 jobs:
   Get-CI-Image-Tag:
diff --git a/.github/workflows/delete-backport-branch.yml b/.github/workflows/delete-backport-branch.yml
new file mode 100644
index 0000000..f24f022
--- /dev/null
+++ b/.github/workflows/delete-backport-branch.yml
@@ -0,0 +1,15 @@
+name: Delete merged branch of the backport PRs
+on:
+  pull_request:
+    types:
+      - closed
+
+jobs:
+  delete-branch:
+    runs-on: ubuntu-latest
+    if: startsWith(github.event.pull_request.head.ref,'backport/')
+    steps:
+      - name: Delete merged branch
+        uses: SvanBoxel/delete-merged-branch@main
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}