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kapp.go
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kapp.go
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// Copyright 2020 VMware, Inc.
// SPDX-License-Identifier: Apache-2.0
package cmd
import (
"io"
"github.com/cppforlife/cobrautil"
"github.com/cppforlife/go-cli-ui/ui"
"github.com/spf13/cobra"
cmdapp "github.com/vmware-tanzu/carvel-kapp/pkg/kapp/cmd/app"
cmdac "github.com/vmware-tanzu/carvel-kapp/pkg/kapp/cmd/appchange"
cmdag "github.com/vmware-tanzu/carvel-kapp/pkg/kapp/cmd/appgroup"
cmdcm "github.com/vmware-tanzu/carvel-kapp/pkg/kapp/cmd/configmap"
cmdcore "github.com/vmware-tanzu/carvel-kapp/pkg/kapp/cmd/core"
cmdsa "github.com/vmware-tanzu/carvel-kapp/pkg/kapp/cmd/serviceaccount"
cmdtools "github.com/vmware-tanzu/carvel-kapp/pkg/kapp/cmd/tools"
"github.com/vmware-tanzu/carvel-kapp/pkg/kapp/logger"
"github.com/vmware-tanzu/carvel-kapp/pkg/kapp/version"
)
type KappOptions struct {
ui *ui.ConfUI
logger *logger.UILogger
configFactory cmdcore.ConfigFactory
depsFactory cmdcore.DepsFactory
UIFlags UIFlags
LoggerFlags LoggerFlags
KubeAPIFlags cmdcore.KubeAPIFlags
KubeconfigFlags cmdcore.KubeconfigFlags
WarningFlags WarningFlags
}
func NewKappOptions(ui *ui.ConfUI, configFactory cmdcore.ConfigFactory,
depsFactory cmdcore.DepsFactory) *KappOptions {
return &KappOptions{ui: ui, logger: logger.NewUILogger(ui),
configFactory: configFactory, depsFactory: depsFactory}
}
func NewDefaultKappCmd(ui *ui.ConfUI) *cobra.Command {
configFactory := cmdcore.NewConfigFactoryImpl()
depsFactory := cmdcore.NewDepsFactoryImpl(configFactory, ui)
options := NewKappOptions(ui, configFactory, depsFactory)
flagsFactory := cmdcore.NewFlagsFactory(configFactory, depsFactory)
return NewKappCmd(options, flagsFactory)
}
func NewKappCmd(o *KappOptions, flagsFactory cmdcore.FlagsFactory) *cobra.Command {
cmd := &cobra.Command{
Use: "kapp",
Short: "kapp helps to manage applications on your Kubernetes cluster",
RunE: cobrautil.ShowHelp,
// Affects children as well
SilenceErrors: true,
SilenceUsage: true,
// Disable docs header
DisableAutoGenTag: true,
Version: version.Version,
// TODO bash completion
}
cmd.SetOut(uiBlockWriter{o.ui}) // setting output for cmd.Help()
cmd.SetUsageTemplate(cobrautil.HelpSectionsUsageTemplate([]cobrautil.HelpSection{
cmdcore.AppHelpGroup,
cmdcore.AppSupportHelpGroup,
cmdcore.MiscHelpGroup,
cmdcore.RestOfCommandsHelpGroup,
}))
o.UIFlags.Set(cmd, flagsFactory)
o.LoggerFlags.Set(cmd, flagsFactory)
o.KubeAPIFlags.Set(cmd, flagsFactory)
o.KubeconfigFlags.Set(cmd, flagsFactory)
o.WarningFlags.Set(cmd, flagsFactory)
o.configFactory.ConfigurePathResolver(o.KubeconfigFlags.Path.Value)
o.configFactory.ConfigureContextResolver(o.KubeconfigFlags.Context.Value)
o.configFactory.ConfigureYAMLResolver(o.KubeconfigFlags.YAML.Value)
cmd.AddCommand(NewVersionCmd(NewVersionOptions(o.ui), flagsFactory))
cmd.AddCommand(cmdapp.NewListCmd(cmdapp.NewListOptions(o.ui, o.depsFactory, o.logger), flagsFactory))
cmd.AddCommand(cmdapp.NewInspectCmd(cmdapp.NewInspectOptions(o.ui, o.depsFactory, o.logger), flagsFactory))
cmd.AddCommand(cmdapp.NewDeployCmd(cmdapp.NewDeployOptions(o.ui, o.depsFactory, o.logger), flagsFactory))
cmd.AddCommand(cmdapp.NewDeployConfigCmd(cmdapp.NewDeployConfigOptions(o.ui, o.depsFactory), flagsFactory))
cmd.AddCommand(cmdapp.NewDeleteCmd(cmdapp.NewDeleteOptions(o.ui, o.depsFactory, o.logger), flagsFactory))
cmd.AddCommand(cmdapp.NewRenameCmd(cmdapp.NewRenameOptions(o.ui, o.depsFactory, o.logger), flagsFactory))
cmd.AddCommand(cmdapp.NewLogsCmd(cmdapp.NewLogsOptions(o.ui, o.depsFactory, o.logger), flagsFactory))
cmd.AddCommand(cmdapp.NewLabelCmd(cmdapp.NewLabelOptions(o.ui, o.depsFactory, o.logger), flagsFactory))
agCmd := cmdag.NewCmd()
agCmd.AddCommand(cmdag.NewDeployCmd(cmdag.NewDeployOptions(o.ui, o.depsFactory, o.logger), flagsFactory))
agCmd.AddCommand(cmdag.NewDeleteCmd(cmdag.NewDeleteOptions(o.ui, o.depsFactory, o.logger), flagsFactory))
cmd.AddCommand(agCmd)
cmCmd := cmdcm.NewCmd()
cmCmd.AddCommand(cmdcm.NewListCmd(cmdcm.NewListOptions(o.ui, o.depsFactory, o.logger), flagsFactory))
cmd.AddCommand(cmCmd)
acCmd := cmdac.NewCmd()
acCmd.AddCommand(cmdac.NewListCmd(cmdac.NewListOptions(o.ui, o.depsFactory, o.logger), flagsFactory))
acCmd.AddCommand(cmdac.NewGCCmd(cmdac.NewGCOptions(o.ui, o.depsFactory, o.logger), flagsFactory))
cmd.AddCommand(acCmd)
saCmd := cmdsa.NewCmd()
saCmd.AddCommand(cmdsa.NewListCmd(cmdsa.NewListOptions(o.ui, o.depsFactory, o.logger), flagsFactory))
cmd.AddCommand(saCmd)
appCmd := cmdtools.NewCmd()
appCmd.AddCommand(cmdtools.NewInspectCmd(cmdtools.NewInspectOptions(o.ui, o.depsFactory), flagsFactory))
appCmd.AddCommand(cmdtools.NewDiffCmd(cmdtools.NewDiffOptions(o.ui, o.depsFactory), flagsFactory))
appCmd.AddCommand(cmdtools.NewListLabelsCmd(cmdtools.NewListLabelsOptions(o.ui, o.depsFactory, o.logger), flagsFactory))
cmd.AddCommand(appCmd)
finishDebugLog := func(cmd *cobra.Command) {
origRunE := cmd.RunE
if origRunE != nil {
cmd.RunE = func(cmd2 *cobra.Command, args []string) error {
defer o.logger.DebugFunc("CommandRun").Finish()
return origRunE(cmd2, args)
}
}
}
configureGlobal := cobrautil.WrapRunEForCmd(func(*cobra.Command, []string) error {
o.UIFlags.ConfigureUI(o.ui)
o.LoggerFlags.Configure(o.logger)
o.KubeAPIFlags.Configure(o.configFactory)
o.WarningFlags.Configure(o.depsFactory)
return nil
})
configureTTYFlag := func(cmd *cobra.Command) {
var forceTTY bool
// Default tty to true for deploy and delete commands: https://github.com/vmware-tanzu/carvel-kapp/issues/28
_, defaultTTY := cmd.Annotations[cmdapp.TTYByDefaultKey]
cmd.Flags().BoolVar(&forceTTY, "tty", defaultTTY, "Force TTY-like output")
cobrautil.VisitCommands(cmd, cobrautil.WrapRunEForCmd(func(*cobra.Command, []string) error {
o.ui.EnableTTY(forceTTY)
return nil
}))
}
cobrautil.VisitCommands(cmd, cobrautil.ReconfigureLeafCmds(cobrautil.DisallowExtraArgs))
// Completion command have to be added after the cobrautil.DisallowExtraArgs.
// This due to the ReconfigureLeafCmds that we do not want to have enforced for the completion
// This configurations forces all nodes to do not accept extra args, but the completion requires 1 extra arg
cmd.AddCommand(NewCmdCompletion())
// Last one runs first
cobrautil.VisitCommands(cmd, finishDebugLog, cobrautil.ReconfigureCmdWithSubcmd, configureGlobal,
cobrautil.WrapRunEForCmd(cobrautil.ResolveFlagsForCmd), cobrautil.ReconfigureLeafCmds(configureTTYFlag))
return cmd
}
type uiBlockWriter struct {
ui ui.UI
}
var _ io.Writer = uiBlockWriter{}
func (w uiBlockWriter) Write(p []byte) (n int, err error) {
w.ui.PrintBlock(p)
return len(p), nil
}