Add `ContainerManager` annotation to created containers

This change adds the following annotation to every container created by
podman:

```json
"Annotations": {
    "io.containers.manager": "libpod"
}
```

Target of this annotaions is to indicate which project in the containers
ecosystem is the major manager of a container when applications share
the same storage paths. This way projects can decide if they want to
manipulate the container or not. For example, since CRI-O and podman are
not using the same container library (libpod), CRI-O can skip podman
containers and provide the end user more useful information.

A corresponding end-to-end test has been adapted as well.

Relates to: https://github.com/cri-o/cri-o/pull/2761

Signed-off-by: Sascha Grunert <sgrunert@suse.com>

1 files changed, 45 insertions, 0 deletions

diff --git a/test/e2e/container_inspect_test.go b/test/e2e/container_inspect_test.go
new file mode 100644
index 000000000..91c025197
--- /dev/null
+++ b/test/e2e/container_inspect_test.go
@@ -0,0 +1,45 @@
+package integration
+
+import (
+	"os"
+
+	"github.com/containers/libpod/pkg/annotations"
+	. "github.com/containers/libpod/test/utils"
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+var _ = Describe("Podman container inspect", func() {
+	var (
+		tempdir    string
+		err        error
+		podmanTest *PodmanTestIntegration
+	)
+
+	BeforeEach(func() {
+		tempdir, err = CreateTempDirInTempDir()
+		if err != nil {
+			os.Exit(1)
+		}
+		podmanTest = PodmanTestCreate(tempdir)
+		podmanTest.Setup()
+		podmanTest.SeedImages()
+	})
+
+	AfterEach(func() {
+		podmanTest.CleanupPod()
+		f := CurrentGinkgoTestDescription()
+		processTestResult(f)
+	})
+
+	It("podman inspect a container for the container manager annotation", func() {
+		const testContainer = "container-inspect-test-1"
+		setup := podmanTest.RunTopContainer(testContainer)
+		setup.WaitWithDefaultTimeout()
+		Expect(setup.ExitCode()).To(Equal(0))
+
+		data := podmanTest.InspectContainer(testContainer)
+		Expect(data[0].Config.Annotations[annotations.ContainerManager]).
+			To(Equal(annotations.ContainerManagerLibpod))
+	})
+})