ci: [torrust#634] run E2E tests in the testing workflow

Author: josecelano

.github/workflows/testing.yaml

@@ -110,3 +110,52 @@ jobs:
       - id: test
         name: Run Unit Tests
         run: cargo test --tests --benches --examples --workspace --all-targets --all-features
+
+  e2e:
+    name: E2E
+    runs-on: ubuntu-latest
+    needs: unit
+
+    strategy:
+      matrix:
+        toolchain: [nightly]
+
+    steps:
+      - id: setup-docker
+        name: Setup Toolchain
+        uses: docker/setup-buildx-action@v3
+
+      - id: build
+        name: Build
+        uses: docker/build-push-action@v5
+        with:
+          file: ./Containerfile
+          push: false
+          load: true
+          target: release
+          tags: torrust-tracker:local
+          cache-from: type=gha
+          cache-to: type=gha
+
+      - id: inspect
+        name: Inspect
+        run: docker image inspect torrust-tracker:local
+
+      - id: setup-rust
+        name: Setup Toolchain
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          toolchain: ${{ matrix.toolchain }}
+          components: llvm-tools-preview
+
+      - id: cache
+        name: Enable Job Cache
+        uses: Swatinem/rust-cache@v2
+
+      - id: checkout
+        name: Checkout Repository
+        uses: actions/checkout@v4        
+
+      - id: test
+        name: Run E2E Tests
+        run: cargo run --bin e2e_tests_runner

src/e2e/runner.rs

@@ -28,7 +28,7 @@ pub fn run() {
 
     */
 
-    //Docker::build("./Containerfile", "local").expect("A tracker local docker image should be built");
+    Docker::build("./Containerfile", "local").expect("A tracker local docker image should be built");
 
     println!(
         "Current dir: {:?}",