tests: add config.jsonnet

Use a jsonnet config that make creating matrix build and tests a breeze

.agola/config.jsonnet

@@ -0,0 +1,85 @@
+local go_runtime(version, arch) = {
+  type: 'pod',
+  arch: arch,
+  containers: [
+    {
+      image: 'golang:' + version + '-stretch',
+    },
+  ],
+};
+
+local dind_runtime(arch) = {
+  type: 'pod',
+  arch: arch,
+  containers: [
+    {
+      image: 'docker:stable-dind',
+      privileged: true,
+      entrypoint: 'dockerd',
+    },
+  ],
+};
+
+local task_build_go(version, arch) = {
+  name: 'build go ' + version + ' ' + arch,
+  runtime: go_runtime(version, arch),
+  environment: {
+    GO111MODULE: 'on',
+    VAR01: {
+      from_variable: 'var01',
+    },
+  },
+  steps: [
+    { type: 'run', command: 'env' },
+    { type: 'clone' },
+    { type: 'restore_cache', keys: ['cache-sum-{{ md5sum "go.sum" }}', 'cache-date-'], dest_dir: '/go/pkg/mod/cache' },
+    { type: 'run', command: 'make' },
+    { type: 'run', command: 'SKIP_DOCKER_TESTS=1 go test -v -count 1 ./...' },
+    { type: 'save_cache', key: 'cache-sum-{{ md5sum "go.sum" }}', contents: [{ source_dir: '/go/pkg/mod/cache' }] },
+    { type: 'save_cache', key: 'cache-date-{{ year }}-{{ month }}-{{ day }}', contents: [{ source_dir: '/go/pkg/mod/cache' }] },
+  ],
+};
+
+local task_build_docker_tests(version, arch) = {
+  name: 'build docker tests go ' + version + ' ' + arch,
+  runtime: go_runtime(version, arch),
+  environment: {
+    GO111MODULE: 'on',
+  },
+  steps: [
+    { type: 'run', command: 'env' },
+    { type: 'clone' },
+    { type: 'restore_cache', keys: ['cache-sum-{{ md5sum "go.sum" }}', 'cache-date-'], dest_dir: '/go/pkg/mod/cache' },
+    { type: 'run', name: 'build docker tests binary', command: 'CGO_ENABLED=0 go test -c ./internal/services/runservice/executor/driver -o ./bin/docker-tests' },
+    { type: 'save_to_workspace', contents: [{ source_dir: './bin', dest_dir: '/bin/', paths: ['*'] }] },
+  ],
+};
+
+{
+  runs: [
+    {
+      name: 'agola build/test',
+      tasks: std.flattenArrays([
+        [
+          task_build_go(version, arch),
+          task_build_docker_tests(version, arch),
+        ]
+        for version in ['1.11', '1.12']
+        for arch in ['amd64' /*, 'arm64' */]
+      ]) + [
+        {
+          name: 'test docker driver',
+          runtime: dind_runtime('amd64'),
+          steps: [
+            { type: 'run', command: 'env' },
+            { type: 'restore_workspace', dest_dir: '.' },
+            { type: 'run', command: './bin/docker-tests -test.parallel 1 -test.v' },
+          ],
+          depends: [
+            'build docker tests go 1.12 amd64',
+          ],
+        },
+      ],
+    },
+  ],
+}