CI: migrate test-colima.sh to colima.bats

Also updated to:
- use the latest Colima
- test port forwarding

Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>

Author: AkihiroSuda

.github/workflows/test.yml

@@ -383,55 +383,23 @@ jobs:
       run: ./hack/bats/lib/bats-core/bin/bats --timing ./hack/bats/extras/k8s.bats
       env:
         LIMA_BATS_ALL_TESTS_RETRIES: 3
-
-  colima:
-    name: "Colima tests (QEMU, Linux host)"
-    runs-on: ubuntu-24.04
-    timeout-minutes: 120
-    strategy:
-      matrix:
-        colima-version: ["v0.6.5"]
-    steps:
-    - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8  # v6.0.1
-      with:
-        # fetch-depth is set to 0 to let `limactl --version` print semver-ish version
-        # fetch-depth: 0 is required for Colima integration test because Colima
-        # checks Lima's version and requires proper semantic version format
-        fetch-depth: 0
-        ref: ${{ github.event.pull_request.head.sha }}
-    - uses: actions/setup-go@4dc6199c7b1a012772edbd06daecab0f50c9053c  # v6.1.0
-      with:
-        go-version: 1.25.x
-    - uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830  # v4.3.0
-      with:
-        path: ~/.cache/lima/download
-        key: ${{ runner.os }}-colima-${{ matrix.colima-version }}
-    - name: Make
-      run: make
-    - name: Install
-      run: sudo make install
-    - name: Install colima
+    - name: "Install colima"
+      id: install-colima
       run: |
         git clone https://github.com/abiosoft/colima
         cd colima
-        git checkout ${{ matrix.colima-version }}
+        latest="$(git tag --sort=-v:refname | head -n1)"
+        git checkout "$latest"
         make
         sudo make install
-    - name: Install test dependencies
-      run: |
-        sudo apt-get update
-        sudo ./hack/install-qemu.sh
-    - name: "Show cache"
-      run: ./hack/debug-cache.sh
-    - name: "Test"
-      uses: nick-fields/retry@ce71cc2ab81d554ebbe88c79ab5975992d79ba08  # v3.0.2
-      with:
-        timeout_minutes: 30
-        retry_on: error
-        max_attempts: 3
-        command: ./hack/test-colima.sh
-    - name: "Show cache"
-      run: ./hack/debug-cache.sh
+        echo "version=$latest" >>$GITHUB_OUTPUT
+    - name: "Cache colima"
+      uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830  # v4.3.0
+      with:
+        path: ~/.cache/colima
+        key: colima-${{ steps.install-colima.outputs.version }}
+    - name: "Run BATS colima tests"
+      run: ./hack/bats/lib/bats-core/bin/bats --timing ./hack/bats/extras/colima.bats
 
   vmnet:
     name: "VMNet tests (QEMU)"

hack/bats/extras/colima.bats

@@ -0,0 +1,16 @@
+# SPDX-FileCopyrightText: Copyright The Lima Authors
+# SPDX-License-Identifier: Apache-2.0
+
+load "../helpers/load"
+
+@test 'Docker' {
+    colima start
+    docker run -p 8080:80 -d --name nginx "${TEST_CONTAINER_IMAGES[nginx]}"
+    sleep 5
+    run curl -sSI http://localhost:8080
+    [ "$status" -eq 0 ]
+    [[ "$output" == *"200 OK"* ]]
+    docker rm -f nginx
+    colima stop
+    colima delete -f
+}