operator: Add bootstrap arg --machine-config-oscontent-image

This will allow the installer to render the payload's osImageURL
ConfigMap in the initial MachineConfig as well.

Closes: #334

Author: cgwalters

cmd/machine-config-operator/bootstrap.go

@@ -29,6 +29,7 @@ var (
 		rootCAFile          string
 		pullSecretFile      string
 		configFile          string
+		oscontentImage      string
 		imagesConfigMapFile string
 		mccImage            string
 		mcsImage            string
@@ -49,6 +50,7 @@ func init() {
 	bootstrapCmd.PersistentFlags().StringVar(&bootstrapOpts.mccImage, "machine-config-controller-image", "", "Image for Machine Config Controller. (this overrides the image from --images-json-configmap)")
 	bootstrapCmd.PersistentFlags().StringVar(&bootstrapOpts.mcsImage, "machine-config-server-image", "", "Image for Machine Config Server. (this overrides the image from --images-json-configmap)")
 	bootstrapCmd.PersistentFlags().StringVar(&bootstrapOpts.mcdImage, "machine-config-daemon-image", "", "Image for Machine Config Daemon. (this overrides the image from --images-json-configmap)")
+	bootstrapCmd.PersistentFlags().StringVar(&bootstrapOpts.oscontentImage, "machine-config-oscontent-image", "", "Image for osImageURL")
 	bootstrapCmd.PersistentFlags().StringVar(&bootstrapOpts.etcdImage, "etcd-image", "", "Image for Etcd. (this overrides the image from --images-json-configmap)")
 	bootstrapCmd.PersistentFlags().StringVar(&bootstrapOpts.setupEtcdEnvImage, "setup-etcd-env-image", "", "Image for Setup Etcd Environment. (this overrides the image from --images-json-configmap)")
 	bootstrapCmd.PersistentFlags().StringVar(&bootstrapOpts.configFile, "config-file", "", "ClusterConfig ConfigMap file.")
@@ -94,6 +96,10 @@ func runBootstrapCmd(cmd *cobra.Command, args []string) {
 	if bootstrapOpts.setupEtcdEnvImage != "" {
 		imgs.SetupEtcdEnv = bootstrapOpts.setupEtcdEnvImage
 	}
+	if bootstrapOpts.oscontentImage != "" {
+		imgs.MachineOSContent = bootstrapOpts.oscontentImage
+	}
+
 	if err := operator.RenderBootstrap(
 		bootstrapOpts.configFile,
 		bootstrapOpts.etcdCAFile, bootstrapOpts.rootCAFile, bootstrapOpts.pullSecretFile,

pkg/operator/bootstrap.go

@@ -42,7 +42,7 @@ func RenderBootstrap(
 		return fmt.Errorf("error discovering MCOConfig from %q: %v", clusterConfigConfigMapFile, err)
 	}
 
-	config := getRenderConfig(mcoconfig, filesData[etcdCAFile], filesData[rootCAFile], nil, imgs, "")
+	config := getRenderConfig(mcoconfig, filesData[etcdCAFile], filesData[rootCAFile], nil, imgs)
 
 	manifests := []struct {
 		name     string

pkg/operator/images.go

@@ -5,6 +5,7 @@ type Images struct {
 	MachineConfigController string `json:"machineConfigController"`
 	MachineConfigDaemon     string `json:"machineConfigDaemon"`
 	MachineConfigServer     string `json:"machineConfigServer"`
+	MachineOSContent        string `json:"machineOSContent"`
 	Etcd                    string `json:"etcd"`
 	SetupEtcdEnv            string `json:"setupEtcdEnv"`
 }
@@ -15,6 +16,7 @@ func DefaultImages() Images {
 		MachineConfigController: "docker.io/openshift/origin-machine-config-controller:v4.0.0",
 		MachineConfigDaemon:     "docker.io/openshift/origin-machine-config-daemon:v4.0.0",
 		MachineConfigServer:     "docker.io/openshift/origin-machine-config-server:v4.0.0",
+		MachineOSContent:        "",
 		Etcd:                    "quay.io/coreos/etcd:v3.3.10",
 		SetupEtcdEnv:            "registry.svc.ci.openshift.org/openshift/origin-v4.0:setup-etcd-environment",
 	}

pkg/operator/operator.go

@@ -274,8 +274,9 @@ func (optr *Operator) sync(key string) error {
 	if err != nil {
 		return err
 	}
+	imgs.MachineOSContent = osimageurl
 
-	rc := getRenderConfig(mcoconfig, etcdCA, rootCA, &v1.ObjectReference{Namespace: "kube-system", Name: "coreos-pull-secret"}, imgs, osimageurl)
+	rc := getRenderConfig(mcoconfig, etcdCA, rootCA, &v1.ObjectReference{Namespace: "kube-system", Name: "coreos-pull-secret"}, imgs)
 	return optr.syncAll(rc)
 }
 
@@ -335,7 +336,7 @@ func icFromClusterConfig(cm *v1.ConfigMap) (installertypes.InstallConfig, error)
 	return ic, nil
 }
 
-func getRenderConfig(mc *mcfgv1.MCOConfig, etcdCAData, rootCAData []byte, ps *v1.ObjectReference, imgs Images, osimageurl string) renderConfig {
+func getRenderConfig(mc *mcfgv1.MCOConfig, etcdCAData, rootCAData []byte, ps *v1.ObjectReference, imgs Images) renderConfig {
 	controllerconfig := mcfgv1.ControllerConfigSpec{
 		ClusterDNSIP:        mc.Spec.ClusterDNSIP,
 		CloudProviderConfig: mc.Spec.CloudProviderConfig,
@@ -346,7 +347,7 @@ func getRenderConfig(mc *mcfgv1.MCOConfig, etcdCAData, rootCAData []byte, ps *v1
 		RootCAData:          rootCAData,
 		PullSecret:          ps,
 		SSHKey:              mc.Spec.SSHKey,
-		OSImageURL:          osimageurl,
+		OSImageURL:          imgs.MachineOSContent,
 		Images: map[string]string{
 			templatectrl.EtcdImageKey:    imgs.Etcd,
 			templatectrl.SetupEtcdEnvKey: imgs.SetupEtcdEnv,