tests: build arm64 tarball for e2e tests

Signed-off-by: Djalal Harouni <tixxdz@gmail.com>

.github/workflows/packages-e2e-tests.yaml

@@ -12,8 +12,13 @@ jobs:
     strategy:
       matrix:
         include:
+          # We use the native arch build
           - os: ubuntu-22.04
             arch: amd64
+            match_arch: x86-64
+          - os: buildjet-2vcpu-ubuntu-2204-arm
+            arch: arm64
+            match_arch: arm64
 
     steps:
       # https://github.com/docker/setup-buildx-action
@@ -54,6 +59,8 @@ jobs:
           retry_wait_seconds: 5
           retry_on: error
           command: |
+            # Ensure that default native builds work
+            file /usr/local/bin/tetragon | grep ${{ matrix.match_arch }} -
             sudo systemctl is-active tetragon
             sudo tetra status
 
@@ -71,3 +78,30 @@ jobs:
         run: |
           sudo ./tetragon-${{ steps.tag.outputs.tag }}-${{ matrix.arch }}/uninstall.sh
         working-directory: ./build/${{ matrix.arch }}/linux-tarball/
+
+      - name: Generate Tetragon Tarball
+        run: make tarball-release
+
+      - name: Save Tetragon Tarball
+        uses: actions/upload-artifact@a8a3f3ad30e3422c9c7b888a15615d19a852ae32 # v3.1.3
+        with:
+          name: tetragon-${{ steps.tag.outputs.tag }}-${{ matrix.arch }}
+          path: release/
+          retention-days: 1
+
+  check-release:
+    name: Check Release
+    if: github.repository == 'cilium/tetragon'
+    environment: release
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Retrieve tetragon-${{ steps.tag.outputs.tag }}-amd64
+        uses: actions/download-artifact@9bc31d5ccc31df68ecc42ccf4149144866c47d8a # v3.0.2
+        with:
+          name: tetragon-${{ steps.tag.outputs.tag }}-amd64
+          path: release
+
+      - name: Display structure of downloaded files
+        run: ls -lha
+        working-directory: release
+