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cli.go
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cli.go
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package cli
import (
"fmt"
"io"
"os"
"runtime"
"strings"
"github.com/golang/glog"
"github.com/spf13/cobra"
"github.com/spf13/pflag"
kubecmd "k8s.io/kubernetes/pkg/kubectl/cmd"
"github.com/openshift/origin/pkg/cmd/cli/cmd"
"github.com/openshift/origin/pkg/cmd/cli/cmd/rsync"
"github.com/openshift/origin/pkg/cmd/cli/policy"
"github.com/openshift/origin/pkg/cmd/cli/secrets"
"github.com/openshift/origin/pkg/cmd/flagtypes"
"github.com/openshift/origin/pkg/cmd/templates"
cmdutil "github.com/openshift/origin/pkg/cmd/util"
"github.com/openshift/origin/pkg/cmd/util/clientcmd"
"github.com/openshift/origin/pkg/version"
)
const cliLong = `
Developer and Administrator Client
This client exposes commands for managing your applications, as well as lower level
tools to interact with each component of your system.
To create a new application, you can use the example app source. Login to your server and then
run new-app:
$ %[1]s login
$ %[1]s new-app openshift/ruby-20-centos7~https://github.com/openshift/ruby-hello-world.git
This will create an application based on the Docker image 'openshift/ruby-20-centos7' that builds
the source code at 'github.com/openshift/ruby-hello-world.git'. A build will start automatically and
a deployment will start as soon as the build finishes.
Once your application is deployed, use the status, get, and describe commands to see more about
the created components:
$ %[1]s status
$ %[1]s describe deploymentconfig ruby-hello-world
$ %[1]s get pods
You'll be able to view the deployed application on the IP and port of the service that new-app
created for you.
You can easily switch between multiple projects using '%[1]s project <projectname>'.`
func NewCommandCLI(name, fullName string, in io.Reader, out, errout io.Writer) *cobra.Command {
// Main command
cmds := &cobra.Command{
Use: name,
Short: "Command line tools for managing applications",
Long: fmt.Sprintf(cliLong, fullName),
Run: cmdutil.DefaultSubCommandRun(out),
BashCompletionFunction: bashCompletionFunc,
}
f := clientcmd.New(cmds.PersistentFlags())
loginCmd := cmd.NewCmdLogin(fullName, f, in, out)
groups := templates.CommandGroups{
{
Message: "Basic Commands:",
Commands: []*cobra.Command{
cmd.NewCmdTypes(fullName, f, out),
loginCmd,
cmd.NewCmdRequestProject("new-project", fullName+" new-project", fullName+" login", fullName+" project", f, out),
cmd.NewCmdNewApplication(fullName, f, out),
cmd.NewCmdStatus(cmd.StatusRecommendedName, fullName+" "+cmd.StatusRecommendedName, f, out),
cmd.NewCmdProject(fullName+" project", f, out),
},
},
{
Message: "Build and Deploy Commands:",
Commands: []*cobra.Command{
cmd.NewCmdStartBuild(fullName, f, in, out),
cmd.NewCmdBuildLogs(fullName, f, out),
cmd.NewCmdDeploy(fullName, f, out),
cmd.NewCmdRollback(fullName, f, out),
cmd.NewCmdNewBuild(fullName, f, in, out),
cmd.NewCmdCancelBuild(fullName, f, out),
cmd.NewCmdImportImage(fullName, f, out),
cmd.NewCmdScale(fullName, f, out),
cmd.NewCmdTag(fullName, f, out),
},
},
{
Message: "Application Modification Commands:",
Commands: []*cobra.Command{
cmd.NewCmdGet(fullName, f, out),
cmd.NewCmdDescribe(fullName, f, out),
cmd.NewCmdEdit(fullName, f, out),
cmd.NewCmdEnv(fullName, f, in, out),
cmd.NewCmdVolume(fullName, f, out, errout),
cmd.NewCmdLabel(fullName, f, out),
cmd.NewCmdAnnotate(fullName, f, out),
cmd.NewCmdExpose(fullName, f, out),
cmd.NewCmdStop(fullName, f, out),
cmd.NewCmdDelete(fullName, f, out),
},
},
{
Message: "Troubleshooting and Debugging Commands:",
Commands: []*cobra.Command{
cmd.NewCmdExplain(fullName, f, out),
cmd.NewCmdLogs(cmd.LogsRecommendedName, fullName, f, out),
cmd.NewCmdRsh(cmd.RshRecommendedName, fullName, f, in, out, errout),
rsync.NewCmdRsync(rsync.RsyncRecommendedName, fullName, f, out, errout),
cmd.NewCmdExec(fullName, f, in, out, errout),
cmd.NewCmdPortForward(fullName, f),
cmd.NewCmdProxy(fullName, f, out),
},
},
{
Message: "Advanced Commands:",
Commands: []*cobra.Command{
cmd.NewCmdCreate(fullName, f, out),
cmd.NewCmdReplace(fullName, f, out),
// TODO decide what to do about apply. Its doing unusual things
// cmd.NewCmdApply(fullName, f, out),
cmd.NewCmdPatch(fullName, f, out),
cmd.NewCmdProcess(fullName, f, out),
cmd.NewCmdExport(fullName, f, in, out),
cmd.NewCmdRun(fullName, f, in, out, errout),
cmd.NewCmdAttach(fullName, f, in, out, errout),
policy.NewCmdPolicy(policy.PolicyRecommendedName, fullName+" "+policy.PolicyRecommendedName, f, out),
secrets.NewCmdSecrets(secrets.SecretsRecommendedName, fullName+" "+secrets.SecretsRecommendedName, f, in, out, fullName+" edit"),
cmd.NewCmdConvert(fullName, f, out),
},
},
{
Message: "Settings Commands:",
Commands: []*cobra.Command{
cmd.NewCmdLogout("logout", fullName+" logout", fullName+" login", f, in, out),
cmd.NewCmdConfig(fullName, "config"),
cmd.NewCmdWhoAmI(cmd.WhoAmIRecommendedCommandName, fullName+" "+cmd.WhoAmIRecommendedCommandName, f, out),
},
},
}
groups.Add(cmds)
changeSharedFlagDefaults(cmds)
templates.ActsAsRootCommand(cmds, groups...).
ExposeFlags(loginCmd, "certificate-authority", "insecure-skip-tls-verify")
if name == fullName {
cmds.AddCommand(version.NewVersionCommand(fullName, false))
}
cmds.AddCommand(cmd.NewCmdOptions(out))
return cmds
}
// changeSharedFlagDefaults changes values of shared flags that we disagree with. This can't be done in godep code because
// that would change behavior in our `kubectl` symlink. Defend each change.
// 1. show-all - the most interesting pods are terminated/failed pods. We don't want to exclude them from printing
func changeSharedFlagDefaults(rootCmd *cobra.Command) {
cmds := []*cobra.Command{rootCmd}
for i := 0; i < len(cmds); i++ {
currCmd := cmds[i]
cmds = append(cmds, currCmd.Commands()...)
if showAllFlag := currCmd.Flags().Lookup("show-all"); showAllFlag != nil {
showAllFlag.DefValue = "true"
showAllFlag.Value.Set("true")
showAllFlag.Changed = false
showAllFlag.Usage = "When printing, show all resources (false means hide terminated pods.)"
}
}
}
// NewCmdKubectl provides exactly the functionality from Kubernetes,
// but with support for OpenShift resources
func NewCmdKubectl(name string, out io.Writer) *cobra.Command {
flags := pflag.NewFlagSet("", pflag.ContinueOnError)
f := clientcmd.New(flags)
cmds := kubecmd.NewKubectlCommand(f.Factory, os.Stdin, out, os.Stderr)
cmds.Aliases = []string{"kubectl"}
cmds.Use = name
cmds.Short = "Kubernetes cluster management via kubectl"
flags.VisitAll(func(flag *pflag.Flag) {
if f := cmds.PersistentFlags().Lookup(flag.Name); f == nil {
cmds.PersistentFlags().AddFlag(flag)
} else {
glog.V(5).Infof("already registered flag %s", flag.Name)
}
})
cmds.PersistentFlags().Var(flags.Lookup("config").Value, "kubeconfig", "Specify a kubeconfig file to define the configuration")
templates.ActsAsRootCommand(cmds)
cmds.AddCommand(cmd.NewCmdOptions(out))
return cmds
}
// CommandFor returns the appropriate command for this base name,
// or the OpenShift CLI command.
func CommandFor(basename string) *cobra.Command {
var cmd *cobra.Command
in, out, errout := os.Stdin, os.Stdout, os.Stderr
// Make case-insensitive and strip executable suffix if present
if runtime.GOOS == "windows" {
basename = strings.ToLower(basename)
basename = strings.TrimSuffix(basename, ".exe")
}
switch basename {
case "kubectl":
cmd = NewCmdKubectl(basename, out)
default:
cmd = NewCommandCLI(basename, basename, in, out, errout)
}
if cmd.UsageFunc() == nil {
templates.ActsAsRootCommand(cmd)
}
flagtypes.GLog(cmd.PersistentFlags())
return cmd
}