Add ability to prune containers and images

Allow user to prune unused/unnamed images, the layer images from building,
via podman rmi --prune.

Allow user to prune stopped/exiuted containers via podman rm --prune.

This should resolve #1910

Signed-off-by: baude <bbaude@redhat.com>

1 files changed, 88 insertions, 0 deletions

diff --git a/test/e2e/prune_test.go b/test/e2e/prune_test.go
new file mode 100644
index 000000000..6679a676c
--- /dev/null
+++ b/test/e2e/prune_test.go
@@ -0,0 +1,88 @@
+package integration
+
+import (
+	"fmt"
+	"os"
+
+	. "github.com/containers/libpod/test/utils"
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+var pruneImage = `
+FROM  alpine:latest
+LABEL RUN podman --version
+RUN apk update
+RUN apk add bash`
+
+var _ = Describe("Podman rm", func() {
+	var (
+		tempdir    string
+		err        error
+		podmanTest *PodmanTestIntegration
+	)
+
+	BeforeEach(func() {
+		tempdir, err = CreateTempDirInTempDir()
+		if err != nil {
+			os.Exit(1)
+		}
+		podmanTest = PodmanTestCreate(tempdir)
+		podmanTest.RestoreAllArtifacts()
+	})
+
+	AfterEach(func() {
+		podmanTest.Cleanup()
+		f := CurrentGinkgoTestDescription()
+		timedResult := fmt.Sprintf("Test: %s completed in %f seconds", f.TestText, f.Duration.Seconds())
+		GinkgoWriter.Write([]byte(timedResult))
+	})
+
+	It("podman container prune containers", func() {
+		top := podmanTest.RunTopContainer("")
+		top.WaitWithDefaultTimeout()
+		Expect(top.ExitCode()).To(Equal(0))
+
+		session := podmanTest.Podman([]string{"run", ALPINE, "ls"})
+		session.WaitWithDefaultTimeout()
+		Expect(session.ExitCode()).To(Equal(0))
+
+		prune := podmanTest.Podman([]string{"container", "prune"})
+		prune.WaitWithDefaultTimeout()
+		Expect(prune.ExitCode()).To(Equal(0))
+
+		Expect(podmanTest.NumberOfContainers()).To(Equal(1))
+	})
+
+	It("podman image prune none images", func() {
+		podmanTest.BuildImage(pruneImage, "alpine_bash:latest", "true")
+
+		none := podmanTest.Podman([]string{"images", "-a"})
+		none.WaitWithDefaultTimeout()
+		Expect(none.ExitCode()).To(Equal(0))
+		hasNone, _ := none.GrepString("<none>")
+		Expect(hasNone).To(BeTrue())
+
+		prune := podmanTest.Podman([]string{"image", "prune"})
+		prune.WaitWithDefaultTimeout()
+		Expect(prune.ExitCode()).To(Equal(0))
+
+		after := podmanTest.Podman([]string{"images", "-a"})
+		after.WaitWithDefaultTimeout()
+		Expect(none.ExitCode()).To(Equal(0))
+		hasNoneAfter, _ := after.GrepString("<none>")
+		Expect(hasNoneAfter).To(BeFalse())
+	})
+
+	It("podman image prune unused images", func() {
+		prune := podmanTest.Podman([]string{"image", "prune"})
+		prune.WaitWithDefaultTimeout()
+		Expect(prune.ExitCode()).To(Equal(0))
+
+		images := podmanTest.Podman([]string{"images", "-a"})
+		images.WaitWithDefaultTimeout()
+		// all images are unused, so they all should be deleted!
+		Expect(len(images.OutputToStringArray())).To(Equal(0))
+	})
+
+})