feat(kube-run): pod and container name can be used in --overrides

%container_name% and %pod_name% now replaced with container/pod name in `kube-run --overrides`.

Signed-off-by: Ilya Lesikov <ilya@lesikov.com>

cmd/werf/kube_run/kube_run.go

@@ -168,7 +168,7 @@ func NewCmd() *cobra.Command {
 	common.SetupPlatform(&commonCmdData, cmd)
 
 	cmd.Flags().StringVarP(&cmdData.Pod, "pod", "", os.Getenv("WERF_POD"), "Set created pod name (default $WERF_POD or autogenerated if not specified)")
-	cmd.Flags().StringVarP(&cmdData.Overrides, "overrides", "", os.Getenv("WERF_OVERRIDES"), "Inline JSON to override/extend any fields in created Pod, e.g. to add imagePullSecrets field (default $WERF_OVERRIDES)")
+	cmd.Flags().StringVarP(&cmdData.Overrides, "overrides", "", os.Getenv("WERF_OVERRIDES"), "Inline JSON to override/extend any fields in created Pod, e.g. to add imagePullSecrets field (default $WERF_OVERRIDES). %pod_name% and %container_name% will be replaced with names of a created pod and a container.")
 	cmd.Flags().StringVarP(&cmdData.ExtraOptions, "extra-options", "", os.Getenv("WERF_EXTRA_OPTIONS"), "Pass extra options to \"kubectl run\" command (default $WERF_EXTRA_OPTIONS)")
 	cmd.Flags().BoolVarP(&cmdData.Rm, "rm", "", common.GetBoolEnvironmentDefaultTrue("WERF_RM"), "Remove pod and other created resources after command completion (default $WERF_RM or true if not specified)")
 	cmd.Flags().BoolVarP(&cmdData.RmWithNamespace, "rm-with-namespace", "", common.GetBoolEnvironmentDefaultFalse("WERF_RM_WITH_NAMESPACE"), "Remove also a namespace after command completion (default $WERF_RM_WITH_NAMESPACE or false if not specified)")
@@ -272,6 +272,8 @@ func runMain(ctx context.Context) error {
 	}
 	secret := pod
 
+	cmdData.Overrides = templateOverrides(cmdData.Overrides, pod, pod)
+
 	_, werfConfig, err := common.GetRequiredWerfConfig(ctx, &commonCmdData, giterminismManager, common.GetWerfConfigOptions(&commonCmdData, false))
 	if err != nil {
 		return fmt.Errorf("unable to load werf config: %w", err)
@@ -698,3 +700,8 @@ func addImagePullSecret(secret string, overrides map[string]interface{}) (map[st
 	overrides["spec"].(map[string]interface{})["imagePullSecrets"] = append(overrides["spec"].(map[string]interface{})["imagePullSecrets"].([]interface{}), newImagePullSecret)
 	return overrides, nil
 }
+
+func templateOverrides(line, podName, containerName string) string {
+	result := strings.ReplaceAll(line, "%container_name%", containerName)
+	return strings.ReplaceAll(result, "%pod_name%", podName)
+}