pass environment variables to container clone

the env vars are held in the spec rather than the config, so they need to be mapped manually. They are also of a different format so special handling needed to be added. All env from the parent container will now be passed to the clone.

resolves #15242

Signed-off-by: Charlie Doern <cdoern@redhat.com>

pkg/specgen/generate/container.go

@@ -347,9 +347,21 @@ func ConfigToSpec(rt *libpod.Runtime, specg *specgen.SpecGenerator, contaierID s
 	conf.Systemd = tmpSystemd
 	conf.Mounts = tmpMounts
 
-	if conf.Spec != nil && conf.Spec.Linux != nil && conf.Spec.Linux.Resources != nil {
-		if specg.ResourceLimits == nil {
-			specg.ResourceLimits = conf.Spec.Linux.Resources
+	if conf.Spec != nil {
+		if conf.Spec.Linux != nil && conf.Spec.Linux.Resources != nil {
+			if specg.ResourceLimits == nil {
+				specg.ResourceLimits = conf.Spec.Linux.Resources
+			}
+		}
+		if conf.Spec.Process != nil && conf.Spec.Process.Env != nil {
+			env := make(map[string]string)
+			for _, entry := range conf.Spec.Process.Env {
+				split := strings.Split(entry, "=")
+				if len(split) == 2 {
+					env[split[0]] = split[1]
+				}
+			}
+			specg.Env = env
 		}
 	}
 

test/e2e/container_clone_test.go

@@ -292,4 +292,20 @@ var _ = Describe("Podman container clone", func() {
 		Expect(ok).To(BeTrue())
 
 	})
+
+	It("podman container clone env test", func() {
+		session := podmanTest.Podman([]string{"run", "--name", "env_ctr", "-e", "ENV_TEST=123", ALPINE, "printenv", "ENV_TEST"})
+		session.WaitWithDefaultTimeout()
+		Expect(session).Should(Exit(0))
+
+		session = podmanTest.Podman([]string{"container", "clone", "env_ctr"})
+		session.WaitWithDefaultTimeout()
+		Expect(session).Should(Exit(0))
+
+		session = podmanTest.Podman([]string{"start", "-a", "env_ctr-clone"})
+		session.WaitWithDefaultTimeout()
+		Expect(session).Should(Exit(0))
+		Expect(session.OutputToString()).Should(ContainSubstring("123"))
+
+	})
 })