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operator-init.go
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/
operator-init.go
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// Copyright Istio Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package mesh
import (
"github.com/fatih/color"
"github.com/spf13/cobra"
"istio.io/api/operator/v1alpha1"
iopv1alpha1 "istio.io/istio/operator/pkg/apis/istio/v1alpha1"
"istio.io/istio/operator/pkg/name"
"istio.io/istio/operator/pkg/translate"
"istio.io/istio/operator/pkg/util/clog"
buildversion "istio.io/pkg/version"
)
type operatorInitArgs struct {
// inFilenames is the path to the input IstioOperator CR.
inFilename string
// kubeConfigPath is the path to kube config file.
kubeConfigPath string
// context is the cluster context in the kube config.
context string
// common is shared operator args
common operatorCommonArgs
}
func addOperatorInitFlags(cmd *cobra.Command, args *operatorInitArgs) {
hub, tag := buildversion.DockerInfo.Hub, buildversion.DockerInfo.Tag
if hub == "" {
hub = "gcr.io/istio-testing"
}
if tag == "" {
tag = "latest"
}
cmd.PersistentFlags().StringVarP(&args.inFilename, "filename", "f", "", filenameFlagHelpStr)
cmd.PersistentFlags().StringVarP(&args.kubeConfigPath, "kubeconfig", "c", "", KubeConfigFlagHelpStr)
cmd.PersistentFlags().StringVar(&args.context, "context", "", ContextFlagHelpStr)
cmd.PersistentFlags().StringVar(&args.common.hub, "hub", hub, HubFlagHelpStr)
cmd.PersistentFlags().StringVar(&args.common.tag, "tag", tag, TagFlagHelpStr)
cmd.PersistentFlags().StringVar(&args.common.operatorNamespace, "operatorNamespace", operatorDefaultNamespace, OperatorNamespaceHelpstr)
cmd.PersistentFlags().StringVar(&args.common.istioNamespace, "istioNamespace", istioDefaultNamespace,
"The namespace Istio is installed into. Deprecated, use '--watchedNamespaces' instead.")
cmd.PersistentFlags().StringVar(&args.common.watchedNamespaces, "watchedNamespaces", istioDefaultNamespace,
"The namespaces the operator controller watches, could be namespace list separated by comma, eg. 'ns1,ns2'")
cmd.PersistentFlags().StringVarP(&args.common.manifestsPath, "charts", "", "", ChartsDeprecatedStr)
cmd.PersistentFlags().StringVarP(&args.common.manifestsPath, "manifests", "d", "", ManifestsFlagHelpStr)
cmd.PersistentFlags().StringVarP(&args.common.revision, "revision", "r", "",
revisionFlagHelpStr)
}
func operatorInitCmd(rootArgs *rootArgs, oiArgs *operatorInitArgs) *cobra.Command {
return &cobra.Command{
Use: "init",
Short: "Installs the Istio operator controller in the cluster.",
Long: "The init subcommand installs the Istio operator controller in the cluster.",
Args: cobra.ExactArgs(0),
Run: func(cmd *cobra.Command, args []string) {
l := clog.NewConsoleLogger(cmd.OutOrStdout(), cmd.ErrOrStderr(), installerScope)
operatorInit(rootArgs, oiArgs, l)
}}
}
// operatorInit installs the Istio operator controller into the cluster.
func operatorInit(args *rootArgs, oiArgs *operatorInitArgs, l clog.Logger) {
initLogsOrExit(args)
restConfig, clientset, client, err := K8sConfig(oiArgs.kubeConfigPath, oiArgs.context)
if err != nil {
l.LogAndFatal(err)
}
// Error here likely indicates Deployment is missing. If some other K8s error, we will hit it again later.
already, _ := isControllerInstalled(clientset, oiArgs.common.operatorNamespace, oiArgs.common.revision)
if already {
l.LogAndPrintf("Operator controller is already installed in %s namespace, updating.", oiArgs.common.operatorNamespace)
}
l.LogAndPrintf("Using operator Deployment image: %s/operator:%s", oiArgs.common.hub, oiArgs.common.tag)
vals, mstr, err := renderOperatorManifest(args, &oiArgs.common)
if err != nil {
l.LogAndFatal(err)
}
installerScope.Debugf("Installing operator charts with the following values:\n%s", vals)
installerScope.Debugf("Using the following manifest to install operator:\n%s\n", mstr)
opts := &applyOptions{
DryRun: args.dryRun,
Kubeconfig: oiArgs.kubeConfigPath,
Context: oiArgs.context,
}
// If CR was passed, we must create a namespace for it and install CR into it.
customResource, istioNamespace, err := getCRAndNamespaceFromFile(oiArgs.inFilename, l)
if err != nil {
l.LogAndFatal(err)
}
var iop *iopv1alpha1.IstioOperator
if oiArgs.common.revision != "" {
emptyiops := &v1alpha1.IstioOperatorSpec{Profile: "empty", Revision: oiArgs.common.revision}
iop, err = translate.IOPStoIOP(emptyiops, "", "")
if err != nil {
l.LogAndFatal(err)
}
}
if err := applyManifest(restConfig, client, mstr, name.IstioOperatorComponentName, opts, iop, l); err != nil {
l.LogAndFatal(err)
}
if customResource != "" {
if err := createNamespace(clientset, istioNamespace); err != nil {
l.LogAndFatal(err)
}
if err := applyManifest(restConfig, client, customResource, name.IstioOperatorComponentName, opts, iop, l); err != nil {
l.LogAndFatal(err)
}
}
l.LogAndPrint(color.New(color.FgGreen).Sprint("✔ ") + installationCompleteStr)
}