ci: run jobs on the on-prem self-hosted-linux ARC pool

.github/workflows/cli.yml

@@ -13,7 +13,7 @@ on:
 jobs:
   test:
     name: Test CLI
-    runs-on: ubuntu-latest
+    runs-on: self-hosted-linux
     steps:
       - name: Checkout code
         uses: actions/checkout@v4
@@ -24,7 +24,8 @@ jobs:
         uses: actions/setup-go@v4
         with:
           go-version: '1.24'
-          cache: true
+          # GOCACHE/GOMODCACHE already live on the runner's persistent shared /cache; setup-go's cache step only re-archives it
+          cache: false
 
       - name: Run Go fmt and vet
         run: |
@@ -42,7 +43,7 @@ jobs:
   build:
     name: Build and Release CLI
     needs: test
-    runs-on: ubuntu-latest
+    runs-on: self-hosted-linux
     strategy:
       matrix:
         include:
@@ -72,7 +73,8 @@ jobs:
         uses: actions/setup-go@v4
         with:
           go-version: '1.24'
-          cache: true
+          # GOCACHE/GOMODCACHE already live on the runner's persistent shared /cache; setup-go's cache step only re-archives it
+          cache: false
 
       - name: Set VERSION env
         run: echo "VERSION=$(git describe --tags --always --dirty)" >> $GITHUB_ENV
@@ -96,6 +98,8 @@ jobs:
       - name: Compress binary
         run: |
           if [ "${{ matrix.goos }}" = "windows" ]; then
+            # zip is not baked into the on-prem runner image (GitHub-hosted preinstalls it).
+            command -v zip >/dev/null || { sudo apt-get update -qq && sudo apt-get install -y -qq zip; }
             cd dist && zip dr-syncer-cli-${{ matrix.goos }}-${{ matrix.goarch }}.zip dr-syncer-cli-${{ matrix.goos }}-${{ matrix.goarch }}${{ matrix.suffix }}
           else
             cd dist && tar -czvf dr-syncer-cli-${{ matrix.goos }}-${{ matrix.goarch }}.tar.gz dr-syncer-cli-${{ matrix.goos }}-${{ matrix.goarch }}
@@ -111,7 +115,7 @@ jobs:
 
   release:
     name: Create GitHub Release
-    runs-on: ubuntu-latest
+    runs-on: self-hosted-linux
     needs: build
     if: startsWith(github.ref, 'refs/tags/')
     steps:

.github/workflows/controller.yml

@@ -29,6 +29,8 @@ jobs:
         uses: actions/setup-go@v5
         with:
           go-version: '1.24'
+          # GOCACHE/GOMODCACHE already live on the runner's persistent shared /cache; setup-go's cache step only re-archives it
+          cache: false
 
       - name: Set up kubectl
         uses: azure/setup-kubectl@v4
@@ -140,6 +142,8 @@ jobs:
         uses: actions/setup-go@v5
         with:
           go-version: '1.24'
+          # GOCACHE/GOMODCACHE already live on the runner's persistent shared /cache; setup-go's cache step only re-archives it
+          cache: false
 
       - name: Install dependencies
         run: |

.github/workflows/docs.yml

@@ -20,7 +20,7 @@ concurrency:
 jobs:
   build:
     name: Build Docusaurus
-    runs-on: ubuntu-latest
+    runs-on: self-hosted-linux
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -68,7 +68,7 @@ jobs:
 
   deploy:
     name: Deploy to GitHub Pages
-    runs-on: ubuntu-latest
+    runs-on: self-hosted-linux
     needs: build
 
     # Deploy to the github-pages environment

.github/workflows/e2e-tests.yml

@@ -46,7 +46,7 @@ concurrency:
 
 jobs:
   e2e-tests:
-    runs-on: ubuntu-latest
+    runs-on: self-hosted-linux
     timeout-minutes: 60
 
     steps:
@@ -57,7 +57,8 @@ jobs:
         uses: actions/setup-go@v5
         with:
           go-version: '1.24'
-          cache: true
+          # GOCACHE/GOMODCACHE already live on the runner's persistent shared /cache; setup-go's cache step only re-archives it
+          cache: false
 
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v3