From f909b745ec82d6c010e27218bda9524bb1724060 Mon Sep 17 00:00:00 2001
From: Matthew Heon <matthew.heon@pm.me>
Date: Tue, 11 Jun 2019 10:28:49 -0400
Subject: 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>
---
cmd/podman/cliconfig/config.go | 3 ++-
cmd/podman/generate_kube.go | 19 +++++++++++++++++--
2 files changed, 19 insertions(+), 3 deletions(-)
(limited to 'cmd/podman')
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
}
--
cgit v1.2.3-54-g00ecf