Add --filename option to generate kube

This allows writing output directly to a file, instead of STDOUT.
Makes things easier for some scripting tasks. Like the unit tests
for 'play kube'.

Signed-off-by: Matthew Heon <matthew.heon@pm.me>

1 files changed, 2 insertions, 6 deletions

diff --git a/test/e2e/generate_kube_test.go b/test/e2e/generate_kube_test.go
index d4eba31e8..40cc534c2 100644
--- a/test/e2e/generate_kube_test.go
+++ b/test/e2e/generate_kube_test.go
@@ -3,7 +3,6 @@
 package integration
 
 import (
-	"io/ioutil"
 	"os"
 	"path/filepath"
 
@@ -120,14 +119,11 @@ var _ = Describe("Podman generate kube", func() {
 		session2.WaitWithDefaultTimeout()
 		Expect(session2.ExitCode()).To(Equal(0))
 
-		kube := podmanTest.Podman([]string{"generate", "kube", podName})
+		outputFile := filepath.Join(podmanTest.RunRoot, "pod.yaml")
+		kube := podmanTest.Podman([]string{"generate", "kube", "-f", outputFile, podName})
 		kube.WaitWithDefaultTimeout()
 		Expect(kube.ExitCode()).To(Equal(0))
 
-		outputFile := filepath.Join(podmanTest.RunRoot, "pod.yaml")
-		err := ioutil.WriteFile(outputFile, []byte(kube.OutputToString()), 0644)
-		Expect(err).To(BeNil())
-
 		session3 := podmanTest.Podman([]string{"pod", "rm", "-af"})
 		session3.WaitWithDefaultTimeout()
 		Expect(session3.ExitCode()).To(Equal(0))