docker: Run tests in parallel

Most of our docker tests can be executed in parallel.
Use the `ginkgo -p` option to achieve this.
The ones that cannot be run in parallel are now tagged in
the test name as [Serial Test] to run them after we run
the tests that can be run in parallel.

Fixes: #1256.

Signed-off-by: Salvador Fuentes <[email protected]>

Makefile

@@ -50,7 +50,12 @@ docker: ginkgo
 ifeq ($(RUNTIME),)
 	$(error RUNTIME is not set)
 else
-	./ginkgo -v -focus "${FOCUS}" -skip "${SKIP}" ./integration/docker/ -- -runtime=${RUNTIME} -timeout=${TIMEOUT}
+	# Run tests in parallel, skip tests that need to be run serialized
+	./ginkgo -p -v -focus "${FOCUS}" -skip "${SKIP}" -skip "\[Serial Test\]" \
+		./integration/docker/ -- -runtime=${RUNTIME} -timeout=${TIMEOUT}
+	# Now run serialized tests
+	./ginkgo -v -focus "${FOCUS}" -focus "\[Serial Test\]" -skip "${SKIP}" \
+		./integration/docker/ -- -runtime=${RUNTIME} -timeout=${TIMEOUT}
 	bash sanity/check_sanity.sh
 endif
 

integration/docker/cp_test.go

@@ -52,7 +52,7 @@ var _ = Describe("docker cp", func() {
 	})
 })
 
-var _ = Describe("docker cp with volume attached", func() {
+var _ = Describe("[Serial Test] docker cp with volume attached", func() {
 	var (
 		id          string
 		exitCode    int
@@ -102,7 +102,7 @@ var _ = Describe("docker cp with volume attached", func() {
 	})
 })
 
-var _ = Describe("docker cp with volume", func() {
+var _ = Describe("[Serial Test] docker cp with volume", func() {
 	var (
 		id            string
 		exitCode      int

integration/docker/volume_test.go

@@ -15,7 +15,7 @@ import (
 	. "github.com/onsi/gomega"
 )
 
-var _ = Describe("docker volume", func() {
+var _ = Describe("[Serial Test] docker volume", func() {
 	var (
 		args          []string
 		id            string = randomDockerName()