feat: add external-images-syncer workflow (#133)

* add external-images-syncer workflow

* ignore changes to external-images.yml in build job

Author: friedrichwilken

.github/workflows/build.yml

@@ -7,8 +7,12 @@ on:
   push:
     branches: [ "main" ]
     tags: [ '*.*.*' ]
+    paths-ignores:
+      - 'external-images.yml'
   pull_request:
     branches: [ "main" ]
+    paths-ignores:
+      - 'external-images.yml'
 
 env:
   # Use docker.io for Docker Hub if empty

.github/workflows/sync-external-images.yml

@@ -0,0 +1,25 @@
+
+name: sync-external-images
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - "external-images.yml"
+  pull_request_target:
+    types: [ opened, edited, synchronize, reopened, ready_for_review ]
+    branches:
+      - main
+    paths:
+      - "external-images.yml"
+
+permissions:
+  id-token: write # This is required for requesting the JWT token
+  contents: read # This is required for actions/checkout
+
+jobs:
+  sync-external-images:
+    uses: kyma-project/test-infra/.github/workflows/image-syncer.yml@main
+    with:
+      debug: true

external-images.yml

@@ -0,0 +1,5 @@
+
+images:
+  - source: golang@sha256:2d40d4fc278dad38be0777d5e2a88a2c6dee51b0b29c97a764fc6c6a11ca893c
+    tag: 1.24.0-alpine3.2
+    amd64Only: true