/
svc_delete.go
343 lines (302 loc) · 8.99 KB
/
svc_delete.go
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// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
package cli
import (
"errors"
"fmt"
"github.com/aws/amazon-ecs-cli-v2/internal/pkg/aws/ecr"
"github.com/aws/amazon-ecs-cli-v2/internal/pkg/aws/session"
"github.com/aws/amazon-ecs-cli-v2/internal/pkg/config"
"github.com/aws/amazon-ecs-cli-v2/internal/pkg/deploy"
"github.com/aws/amazon-ecs-cli-v2/internal/pkg/deploy/cloudformation"
"github.com/aws/amazon-ecs-cli-v2/internal/pkg/term/color"
"github.com/aws/amazon-ecs-cli-v2/internal/pkg/term/log"
termprogress "github.com/aws/amazon-ecs-cli-v2/internal/pkg/term/progress"
awssession "github.com/aws/aws-sdk-go/aws/session"
"github.com/spf13/cobra"
)
const (
svcDeleteNamePrompt = "Which service would you like to delete?"
fmtSvcDeleteConfirmPrompt = "Are you sure you want to delete %s from application %s?"
svcDeleteConfirmHelp = "This will remove the service from all environments, delete the local workspace file, and remove ECR repositories."
)
const (
fmtSvcDeleteStart = "Deleting service %s from environment %s."
fmtSvcDeleteFailed = "Failed to delete service %s from environment %s: %v."
fmtSvcDeleteComplete = "Deleted service %s from environment %s."
fmtSvcDeleteResourcesStart = "Deleting service %s resources from application %s."
fmtSvcDeleteResourcesComplete = "Deleted service %s resources from application %s."
)
var (
errSvcDeleteCancelled = errors.New("svc delete cancelled - no changes made")
)
type deleteSvcVars struct {
*GlobalOpts
SkipConfirmation bool
Name string
EnvName string
}
type deleteSvcOpts struct {
deleteSvcVars
// Interfaces to dependencies.
store store
sess sessionProvider
spinner progress
appCFN svcRemoverFromApp
getSvcCFN func(session *awssession.Session) svcDeleter
getECR func(session *awssession.Session) imageRemover
// Internal state.
environments []*config.Environment
}
func newDeleteSvcOpts(vars deleteSvcVars) (*deleteSvcOpts, error) {
store, err := config.NewStore()
if err != nil {
return nil, fmt.Errorf("new config store: %w", err)
}
provider := session.NewProvider()
defaultSession, err := provider.Default()
if err != nil {
return nil, err
}
return &deleteSvcOpts{
deleteSvcVars: vars,
store: store,
spinner: termprogress.NewSpinner(),
sess: provider,
appCFN: cloudformation.New(defaultSession),
getSvcCFN: func(session *awssession.Session) svcDeleter {
return cloudformation.New(session)
},
getECR: func(session *awssession.Session) imageRemover {
return ecr.New(session)
},
}, nil
}
// Validate returns an error if the user inputs are invalid.
func (o *deleteSvcOpts) Validate() error {
if o.AppName() == "" {
return errNoAppInWorkspace
}
if o.Name != "" {
if _, err := o.store.GetService(o.AppName(), o.Name); err != nil {
return err
}
}
if o.EnvName != "" {
if err := o.validateEnvName(); err != nil {
return err
}
}
return nil
}
// Ask prompts the user for any required flags.
func (o *deleteSvcOpts) Ask() error {
if err := o.askSvcName(); err != nil {
return err
}
if o.SkipConfirmation {
return nil
}
deleteConfirmed, err := o.prompt.Confirm(
fmt.Sprintf(fmtSvcDeleteConfirmPrompt, o.Name, o.appName),
svcDeleteConfirmHelp)
if err != nil {
return fmt.Errorf("svc delete confirmation prompt: %w", err)
}
if !deleteConfirmed {
return errSvcDeleteCancelled
}
return nil
}
// Execute deletes the application's CloudFormation stack, ECR repository, SSM parameter, and local file.
func (o *deleteSvcOpts) Execute() error {
if err := o.appEnvironments(); err != nil {
return err
}
if err := o.deleteStacks(); err != nil {
return err
}
if err := o.emptyECRRepos(); err != nil {
return err
}
if err := o.removeSvcFromApp(); err != nil {
return err
}
if err := o.deleteSSMParam(); err != nil {
return err
}
log.Successf("Deleted service %s from application %s.\n", o.Name, o.appName)
return nil
}
func (o *deleteSvcOpts) validateEnvName() error {
if _, err := o.targetEnv(); err != nil {
return err
}
return nil
}
func (o *deleteSvcOpts) targetEnv() (*config.Environment, error) {
env, err := o.store.GetEnvironment(o.AppName(), o.EnvName)
if err != nil {
return nil, fmt.Errorf("get environment %s from config store: %w", o.EnvName, err)
}
return env, nil
}
func (o *deleteSvcOpts) askSvcName() error {
if o.Name != "" {
return nil
}
names, err := o.serviceNames()
if err != nil {
return err
}
if len(names) == 0 {
return fmt.Errorf("couldn't find any services in the application %s", o.AppName())
}
if len(names) == 1 {
o.Name = names[0]
log.Infof("Only found one service, defaulting to: %s\n", color.HighlightUserInput(o.Name))
return nil
}
name, err := o.prompt.SelectOne(svcDeleteNamePrompt, "", names)
if err != nil {
return fmt.Errorf("select service to delete: %w", err)
}
o.Name = name
return nil
}
func (o *deleteSvcOpts) serviceNames() ([]string, error) {
services, err := o.store.ListServices(o.AppName())
if err != nil {
return nil, fmt.Errorf("list services for application %s: %w", o.AppName(), err)
}
var names []string
for _, svc := range services {
names = append(names, svc.Name)
}
return names, nil
}
func (o *deleteSvcOpts) appEnvironments() error {
if o.EnvName != "" {
env, err := o.targetEnv()
if err != nil {
return err
}
o.environments = append(o.environments, env)
} else {
envs, err := o.store.ListEnvironments(o.AppName())
if err != nil {
return fmt.Errorf("list environments: %w", err)
}
o.environments = envs
}
return nil
}
func (o *deleteSvcOpts) deleteStacks() error {
for _, env := range o.environments {
sess, err := o.sess.FromRole(env.ManagerRoleARN, env.Region)
if err != nil {
return err
}
cfClient := o.getSvcCFN(sess)
o.spinner.Start(fmt.Sprintf(fmtSvcDeleteStart, o.Name, env.Name))
if err := cfClient.DeleteService(deploy.DeleteServiceInput{
Name: o.Name,
EnvName: env.Name,
AppName: o.appName,
}); err != nil {
o.spinner.Stop(log.Serrorf(fmtSvcDeleteFailed, o.Name, env.Name, err))
return err
}
o.spinner.Stop(log.Ssuccessf(fmtSvcDeleteComplete, o.Name, env.Name))
}
return nil
}
// This is to make mocking easier in unit tests
func (o *deleteSvcOpts) emptyECRRepos() error {
var uniqueRegions []string
for _, env := range o.environments {
if !contains(env.Region, uniqueRegions) {
uniqueRegions = append(uniqueRegions, env.Region)
}
}
// TODO: centralized ECR repo name
repoName := fmt.Sprintf("%s/%s", o.appName, o.Name)
for _, region := range uniqueRegions {
sess, err := o.sess.DefaultWithRegion(region)
if err != nil {
return err
}
client := o.getECR(sess)
if err := client.ClearRepository(repoName); err != nil {
return err
}
}
return nil
}
func (o *deleteSvcOpts) removeSvcFromApp() error {
proj, err := o.store.GetApplication(o.appName)
if err != nil {
return err
}
o.spinner.Start(fmt.Sprintf(fmtSvcDeleteResourcesStart, o.Name, o.appName))
if err := o.appCFN.RemoveServiceFromApp(proj, o.Name); err != nil {
if !isStackSetNotExistsErr(err) {
o.spinner.Stop(log.Serrorf(fmtSvcDeleteResourcesStart, o.Name, o.appName))
return err
}
}
o.spinner.Stop(log.Ssuccessf(fmtSvcDeleteResourcesComplete, o.Name, o.appName))
return nil
}
func (o *deleteSvcOpts) deleteSSMParam() error {
if err := o.store.DeleteService(o.appName, o.Name); err != nil {
return fmt.Errorf("delete service %s in application %s from config store: %w", o.Name, o.appName, err)
}
return nil
}
// RecommendedActions returns follow-up actions the user can take after successfully executing the command.
func (o *deleteSvcOpts) RecommendedActions() []string {
return []string{
fmt.Sprintf("Run %s to update the corresponding pipeline if it exists.",
color.HighlightCode(fmt.Sprintf("copilot pipeline update"))),
}
}
// BuildSvcDeleteCmd builds the command to delete application(s).
func BuildSvcDeleteCmd() *cobra.Command {
vars := deleteSvcVars{
GlobalOpts: NewGlobalOpts(),
}
cmd := &cobra.Command{
Use: "delete",
Short: "Deletes a service from an application.",
Example: `
Delete the "test" service.
/code $ copilot svc delete --name test
Delete the "test" service without confirmation prompt.
/code $ copilot svc delete --name test --yes`,
RunE: runCmdE(func(cmd *cobra.Command, args []string) error {
opts, err := newDeleteSvcOpts(vars)
if err != nil {
return err
}
if err := opts.Validate(); err != nil {
return err
}
if err := opts.Ask(); err != nil {
return err
}
if err := opts.Execute(); err != nil {
return err
}
log.Infoln("Recommended follow-up actions:")
for _, followup := range opts.RecommendedActions() {
log.Infof("- %s\n", followup)
}
return nil
}),
}
cmd.Flags().StringVarP(&vars.Name, nameFlag, nameFlagShort, "", svcFlagDescription)
cmd.Flags().StringVarP(&vars.EnvName, envFlag, envFlagShort, "", envFlagDescription)
cmd.Flags().BoolVar(&vars.SkipConfirmation, yesFlag, false, yesFlagDescription)
return cmd
}