/
show.go
152 lines (134 loc) · 3.81 KB
/
show.go
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// Copyright 2016 Canonical Ltd.
// Licensed under the AGPLv3, see LICENCE file for infos.
package model
import (
"time"
"github.com/juju/cmd/v3"
"github.com/juju/errors"
"github.com/juju/gnuflag"
"github.com/juju/names/v5"
"github.com/juju/juju/api"
"github.com/juju/juju/api/client/modelmanager"
jujucmd "github.com/juju/juju/cmd"
"github.com/juju/juju/cmd/juju/common"
"github.com/juju/juju/cmd/modelcmd"
"github.com/juju/juju/cmd/output"
"github.com/juju/juju/rpc/params"
)
const showModelCommandDoc = `Show information about the current or specified model.`
func NewShowCommand() cmd.Command {
showCmd := &showModelCommand{}
return modelcmd.Wrap(showCmd,
modelcmd.WrapSkipModelFlags,
)
}
// showModelCommand shows all the users with access to the current model.
type showModelCommand struct {
modelcmd.ModelCommandBase
out cmd.Output
api ShowModelAPI
}
// ShowModelAPI defines the methods on the client API that the
// users command calls.
type ShowModelAPI interface {
Close() error
ModelInfo([]names.ModelTag) ([]params.ModelInfoResult, error)
}
func (c *showModelCommand) getAPI() (ShowModelAPI, error) {
if c.api != nil {
return c.api, nil
}
api, err := c.NewControllerAPIRoot()
if err != nil {
return nil, errors.Trace(err)
}
return modelmanager.NewClient(api), nil
}
// Info implements Command.Info.
func (c *showModelCommand) Info() *cmd.Info {
return jujucmd.Info(&cmd.Info{
Name: "show-model",
Args: "<model name>",
Purpose: "Shows information about the current or specified model.",
Doc: showModelCommandDoc,
})
}
// SetFlags implements Command.SetFlags.
func (c *showModelCommand) SetFlags(f *gnuflag.FlagSet) {
c.ModelCommandBase.SetFlags(f)
c.out.AddFlags(f, "yaml", output.DefaultFormatters)
}
// Init implements Command.Init.
func (c *showModelCommand) Init(args []string) error {
modelName := ""
if len(args) > 0 {
modelName = args[0]
args = args[1:]
}
if err := c.SetModelIdentifier(modelName, true); err != nil {
return errors.Trace(err)
}
if err := c.ModelCommandBase.Init(args); err != nil {
return err
}
return nil
}
// Run implements Command.Run.
func (c *showModelCommand) Run(ctx *cmd.Context) error {
controllerName, err := c.ControllerName()
if err != nil {
return errors.Trace(err)
}
_, modelDetails, err := c.ModelDetails()
if err != nil {
return errors.Trace(err)
}
modelTag := names.NewModelTag(modelDetails.ModelUUID)
api, err := c.getAPI()
if err != nil {
return err
}
defer api.Close()
results, err := api.ModelInfo([]names.ModelTag{modelTag})
if err != nil {
return err
}
if results[0].Error != nil {
return maybeEmitRedirectError(results[0].Error)
}
infoMap, err := c.apiModelInfoToModelInfoMap([]params.ModelInfo{*results[0].Result}, controllerName)
if err != nil {
return errors.Trace(err)
}
return c.out.Write(ctx, infoMap)
}
func (c *showModelCommand) apiModelInfoToModelInfoMap(modelInfo []params.ModelInfo, controllerName string) (map[string]common.ModelInfo, error) {
// TODO(perrito666) 2016-05-02 lp:1558657
now := time.Now()
output := make(map[string]common.ModelInfo)
for _, info := range modelInfo {
out, err := common.ModelInfoFromParams(info, now)
if err != nil {
return nil, errors.Trace(err)
}
out.ControllerName = controllerName
output[out.ShortName] = out
}
return output, nil
}
func maybeEmitRedirectError(err error) error {
pErr, ok := errors.Cause(err).(*params.Error)
if !ok {
return err
}
var redirInfo params.RedirectErrorInfo
if err := pErr.UnmarshalInfo(&redirInfo); err == nil && redirInfo.CACert != "" && len(redirInfo.Servers) != 0 {
return &api.RedirectError{
Servers: params.ToMachineHostsPorts(redirInfo.Servers),
CACert: redirInfo.CACert,
ControllerAlias: redirInfo.ControllerAlias,
FollowRedirect: false, // user-action required
}
}
return err
}