149 lines
3.3 KiB
Go
149 lines
3.3 KiB
Go
/*
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Copyright 2017 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package commands
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import (
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"fmt"
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"io"
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"path"
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"github.com/spf13/cobra"
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"k8s.io/kubectl/pkg/kinflate"
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"k8s.io/kubectl/pkg/kinflate/util/fs"
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)
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const appname = "helloworld"
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const manifestTemplate = `apiVersion: manifest.k8s.io/v1alpha1
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kind: Manifest
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metadata:
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name: helloworld
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description: helloworld does useful stuff.
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namePrefix: some-prefix
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# Labels to add to all objects and selectors.
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# These labels would also be used to form the selector for apply --prune
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# Named differently than “labels” to avoid confusion with metadata for this object
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objectLabels:
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app: helloworld
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objectAnnotations:
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note: This is a example annotation
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resources:
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- deployment.yaml
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- service.yaml
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# There could also be configmaps in Base, which would make these overlays
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configmaps: []
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# There could be secrets in Base, if just using a fork/rebase workflow
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secrets: []
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recursive: true
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`
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const deploymentTemplate = `apiVersion: extensions/v1beta1
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kind: Deployment
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metadata:
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name: helloworld
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spec:
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template:
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spec:
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containers:
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- name: nginx
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image: nginx
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`
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const serviceTemplate = `apiVersion: v1
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kind: Service
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metadata:
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name: helloworld
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labels:
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app: helloworld
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spec:
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ports:
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- port: 8888
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selector:
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app: helloworld
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`
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type initOptions struct {
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}
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// NewCmdInit make the init command.
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func NewCmdInit(out, errOut io.Writer, fs fs.FileSystem) *cobra.Command {
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var o initOptions
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cmd := &cobra.Command{
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Use: "init",
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Short: "TDB",
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Long: "TBD",
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Example: `
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TBD`,
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RunE: func(cmd *cobra.Command, args []string) error {
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err := o.Validate(cmd, args)
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if err != nil {
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return err
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}
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err = o.Complete(cmd, args)
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if err != nil {
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return err
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}
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return o.RunInit(cmd, out, errOut, fs)
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},
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}
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return cmd
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}
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// Validate validates init command.
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func (o *initOptions) Validate(cmd *cobra.Command, args []string) error {
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return nil
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}
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// Complete completes init command.
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func (o *initOptions) Complete(cmd *cobra.Command, args []string) error {
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return nil
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}
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// RunKinflate runs init command (do real work).
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func (o *initOptions) RunInit(cmd *cobra.Command, out, errOut io.Writer, fs fs.FileSystem) error {
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if _, err := fs.Stat("helloworld"); err == nil {
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return fmt.Errorf("%q already exists", appname)
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}
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err := fs.Mkdir(appname, 0744)
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if err != nil {
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return err
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}
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err = writefile(kinflate.KubeManifestFileName, []byte(manifestTemplate), fs)
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if err != nil {
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return err
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}
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err = writefile("deployment.yaml", []byte(deploymentTemplate), fs)
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if err != nil {
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return err
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}
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err = writefile("service.yaml", []byte(serviceTemplate), fs)
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return err
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}
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func writefile(name string, content []byte, fs fs.FileSystem) error {
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f, err := fs.Create(path.Join(appname, name))
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if err != nil {
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return err
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}
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defer f.Close()
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_, err = f.Write(content)
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return err
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}
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