Add e2e test into CI

.github/workflows/test-e2e.yml

@@ -0,0 +1,35 @@
+name: Test E2E
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  test-sandbox:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y make
+
+          sudo apt install -y skopeo
+
+          sudo apt install -y curl tar
+          curl -L https://github.com/opencontainers/umoci/releases/download/v0.5.1/umoci.linux.amd64 -o umoci
+          chmod +x umoci
+          sudo mv umoci /usr/local/bin/umoci
+
+          wget https://go.dev/dl/go1.25.1.linux-amd64.tar.gz
+          sudo tar -C /usr/local -xzf go1.25.1.linux-amd64.tar.gz
+          export PATH=$PATH:/usr/local/go/bin
+          go version
+
+      - name: Run e2e tests
+        run: make test-e2e

Makefile

@@ -23,17 +23,8 @@ test-job: make-rootfs
 	@echo "Running job tests..."
 	sudo env "PATH=$$PATH:/usr/local/go/bin" go test github.com/joshjms/castletown/job -v
 
-
-.PHONY: build
-build:
-	bash scripts/build.sh
-
-.PHONY: dev
-dev:
-	sudo env "PATH=$$PATH:/usr/local/go/bin" go run main.go server
-
-.PHONY: e2e
-e2e: prepare-dirs make-rootfs
+.PHONY: test-e2e
+test-e2e: prepare-dirs make-rootfs
 	@echo "Running end-to-end tests..."
 	@echo "Building castletown..."
 	@sudo env "PATH=$$PATH:/usr/local/go/bin" go build -o tmp/castletown main.go
@@ -44,3 +35,11 @@ e2e: prepare-dirs make-rootfs
 	@sudo pkill castletown
 	@sudo rm -rf tmp
 
+.PHONY: build
+build:
+	bash scripts/build.sh
+
+.PHONY: dev
+dev:
+	sudo env "PATH=$$PATH:/usr/local/go/bin" go run main.go server
+