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authorMatthew Heon <matthew.heon@pm.me>2019-06-11 10:28:49 -0400
committerMatthew Heon <matthew.heon@pm.me>2019-06-11 11:26:46 -0400
commitf909b745ec82d6c010e27218bda9524bb1724060 (patch)
tree9095186eb1b8c790a953dfffea9ee6de27185ecd /cmd
parent53435d4d4726250f38054b934246ec4d8b1f7581 (diff)
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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>
Diffstat (limited to 'cmd')
-rw-r--r--cmd/podman/cliconfig/config.go3
-rw-r--r--cmd/podman/generate_kube.go19
2 files changed, 19 insertions, 3 deletions
diff --git a/cmd/podman/cliconfig/config.go b/cmd/podman/cliconfig/config.go
index b8b1648b8..545166d05 100644
--- a/cmd/podman/cliconfig/config.go
+++ b/cmd/podman/cliconfig/config.go
@@ -145,7 +145,8 @@ type ExportValues struct {
}
type GenerateKubeValues struct {
PodmanCommand
- Service bool
+ Service bool
+ Filename string
}
type GenerateSystemdValues struct {
diff --git a/cmd/podman/generate_kube.go b/cmd/podman/generate_kube.go
index 318dd0771..3969e3132 100644
--- a/cmd/podman/generate_kube.go
+++ b/cmd/podman/generate_kube.go
@@ -2,6 +2,9 @@ package main
import (
"fmt"
+ "io/ioutil"
+ "os"
+
"github.com/containers/libpod/cmd/podman/cliconfig"
"github.com/containers/libpod/pkg/adapter"
podmanVersion "github.com/containers/libpod/version"
@@ -37,6 +40,7 @@ func init() {
containerKubeCommand.SetUsageTemplate(UsageTemplate())
flags := containerKubeCommand.Flags()
flags.BoolVarP(&containerKubeCommand.Service, "service", "s", false, "Generate YAML for kubernetes service object")
+ flags.StringVarP(&containerKubeCommand.Filename, "filename", "f", "", "Filename to output to")
}
func generateKubeYAMLCmd(c *cliconfig.GenerateKubeValues) error {
@@ -88,8 +92,19 @@ func generateKubeYAMLCmd(c *cliconfig.GenerateKubeValues) error {
output = append(output, []byte("---\n")...)
output = append(output, marshalledService...)
}
- // Output the v1.Pod with the v1.Container
- fmt.Println(string(output))
+
+ if c.Filename != "" {
+ if _, err := os.Stat(c.Filename); err == nil {
+ return errors.Errorf("cannot write to %q - file exists", c.Filename)
+ }
+
+ if err := ioutil.WriteFile(c.Filename, output, 0644); err != nil {
+ return err
+ }
+ } else {
+ // Output the v1.Pod with the v1.Container
+ fmt.Println(string(output))
+ }
return nil
}