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crd.go
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crd.go
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// Copyright © 2017 The Kubicorn 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 cmd
import (
"errors"
"fmt"
"os"
"github.com/kubicorn/kubicorn/pkg/cli"
"github.com/kubicorn/kubicorn/pkg/initapi"
"github.com/kubicorn/kubicorn/pkg/logger"
"github.com/kubicorn/kubicorn/pkg/state/crd"
"github.com/spf13/cobra"
"github.com/spf13/viper"
)
func CRDCmd() *cobra.Command {
var crdo = &cli.CRDOptions{}
var crdCommand = &cobra.Command{
Use: "crd <NAME>",
Short: "Ensure a CRD for a given cluster",
Long: `Use this command to upsert a CRD based on a given cluster definition.
All normal state store configuration is applicable for READING a state store, and the state store will ALWAYS be saved as a CRD.`,
Run: func(cmd *cobra.Command, args []string) {
switch len(args) {
case 0:
crdo.Name = viper.GetString(keyKubicornName)
case 1:
crdo.Name = args[0]
default:
logger.Critical("Too many arguments.")
os.Exit(1)
}
if err := runCRD(crdo); err != nil {
logger.Critical(err.Error())
os.Exit(1)
}
},
}
fs := crdCommand.Flags()
bindCommonStateStoreFlags(&crdo.StateStoreOptions, fs)
bindCommonAwsFlags(&crdo.AwsOptions, fs)
fs.StringVar(&crdo.GitRemote, keyGitConfig, viper.GetString(keyGitConfig), descGitConfig)
return crdCommand
}
func runCRD(options *cli.CRDOptions) error {
// Ensure we have a name
name := options.Name
if name == "" {
return errors.New("Empty name. Must specify the name of the cluster to get config")
}
// Expand state store path
options.StateStorePath = cli.ExpandPath(options.StateStorePath)
// Register state store
stateStore, err := options.NewStateStore()
if err != nil {
return err
}
cluster, err := stateStore.GetCluster()
if err != nil {
return fmt.Errorf("Unable to get cluster [%s]: %v", name, err)
}
logger.Info("Loaded cluster: %s", cluster.Name)
logger.Info("Init Cluster")
cluster, err = initapi.InitCluster(cluster)
if err != nil {
return err
}
crdStateStore := crd.NewCRDStore(&crd.CRDStoreOptions{
BasePath: options.StateStorePath,
ClusterName: options.Name,
})
err = crdStateStore.Commit(cluster)
if err != nil {
return err
}
logger.Always("CRDs created")
return nil
}