/*

Copyright 2020 Docker Compose CLI authors

Licensed under the Apache License, Version 2.0 (the "License");

you may not use this file except in compliance with the License.

You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software

distributed under the License is distributed on an "AS IS" BASIS,

WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

See the License for the specific language governing permissions and

limitations under the License.

*/

package compose

import (

"context"

"fmt"

"slices"

"strconv"

"strings"

"time"

"github.com/compose-spec/compose-go/v2/types"

"github.com/docker/cli/cli/command"

"github.com/sirupsen/logrus"

"github.com/spf13/cobra"

"github.com/spf13/pflag"

"github.com/docker/compose/v5/pkg/api"

"github.com/docker/compose/v5/pkg/compose"

)

type createOptions struct {

Build bool

noBuild bool

Pull string

pullChanged bool

removeOrphans bool

ignoreOrphans bool

forceRecreate bool

noRecreate bool

recreateDeps bool

noInherit bool

timeChanged bool

timeout int

quietPull bool

scale []string

AssumeYes bool

}

func createCommand(p *ProjectOptions, dockerCli command.Cli, backendOptions *BackendOptions) *cobra.Command {

opts := createOptions{}

buildOpts := buildOptions{

ProjectOptions: p,

}

cmd := &cobra.Command{

Use: "create [OPTIONS] [SERVICE...]",

Short: "Creates containers for a service",

PreRunE: AdaptCmd(func(ctx context.Context, cmd *cobra.Command, args []string) error {

opts.pullChanged = cmd.Flags().Changed("pull")

if opts.Build && opts.noBuild {

return fmt.Errorf("--build and --no-build are incompatible")

}

if opts.forceRecreate && opts.noRecreate {

return fmt.Errorf("--force-recreate and --no-recreate are incompatible")

}

return nil

}),

RunE: p.WithServices(dockerCli, func(ctx context.Context, project *types.Project, services []string) error {

return runCreate(ctx, dockerCli, backendOptions, opts, buildOpts, project, services)

}),

ValidArgsFunction: completeServiceNames(dockerCli, p),

}

flags := cmd.Flags()

flags.BoolVar(&opts.Build, "build", false, "Build images before starting containers")

flags.BoolVar(&opts.noBuild, "no-build", false, "Don't build an image, even if it's policy")

flags.StringVar(&opts.Pull, "pull", "policy", `Pull image before running ("always"|"missing"|"never"|"build")`)

flags.BoolVar(&opts.quietPull, "quiet-pull", false, "Pull without printing progress information")

flags.BoolVar(&opts.forceRecreate, "force-recreate", false, "Recreate containers even if their configuration and image haven't changed")

flags.BoolVar(&opts.noRecreate, "no-recreate", false, "If containers already exist, don't recreate them. Incompatible with --force-recreate.")

flags.BoolVar(&opts.removeOrphans, "remove-orphans", false, "Remove containers for services not defined in the Compose file")

flags.StringArrayVar(&opts.scale, "scale", []string{}, "Scale SERVICE to NUM instances. Overrides the `scale` setting in the Compose file if present.")

flags.BoolVarP(&opts.AssumeYes, "yes", "y", false, `Assume "yes" as answer to all prompts and run non-interactively`)

flags.SetNormalizeFunc(func(f *pflag.FlagSet, name string) pflag.NormalizedName {

// assumeYes was introduced by mistake as `--y`

if name == "y" {

logrus.Warn("--y is deprecated, please use --yes instead")

name = "yes"

}

return pflag.NormalizedName(name)

})

return cmd

}

func runCreate(ctx context.Context, dockerCli command.Cli, backendOptions *BackendOptions, createOpts createOptions, buildOpts buildOptions, project *types.Project, services []string) error {

if err := createOpts.Apply(project); err != nil {

return err

}

var build *api.BuildOptions

if !createOpts.noBuild {

bo, err := buildOpts.toAPIBuildOptions(services)

if err != nil {

return err

}

build = &bo

}

if createOpts.AssumeYes {

backendOptions.Options = append(backendOptions.Options, compose.WithPrompt(compose.AlwaysOkPrompt()))

}

backend, err := compose.NewComposeService(dockerCli, backendOptions.Options...)

if err != nil {

return err

}

return backend.Create(ctx, project, api.CreateOptions{

Build: build,

Services: services,

RemoveOrphans: createOpts.removeOrphans,

IgnoreOrphans: createOpts.ignoreOrphans,

Recreate: createOpts.recreateStrategy(),

RecreateDependencies: createOpts.dependenciesRecreateStrategy(),

Inherit: !createOpts.noInherit,

Timeout: createOpts.GetTimeout(),

QuietPull: createOpts.quietPull,

})

}

func (opts createOptions) recreateStrategy() string {

if opts.noRecreate {

return api.RecreateNever

}

if opts.forceRecreate {

return api.RecreateForce

}

if opts.noInherit {

return api.RecreateForce

}

return api.RecreateDiverged

}

func (opts createOptions) dependenciesRecreateStrategy() string {

if opts.noRecreate {

return api.RecreateNever

}

if opts.recreateDeps {

return api.RecreateForce

}

return api.RecreateDiverged

}

func (opts createOptions) GetTimeout() *time.Duration {

if opts.timeChanged {

t := time.Duration(opts.timeout) * time.Second

return &t

}

return nil

}

func (opts createOptions) Apply(project *types.Project) error {

if opts.pullChanged {

if !opts.isPullPolicyValid() {

return fmt.Errorf("invalid --pull option %q", opts.Pull)

}

for i, service := range project.Services {

service.PullPolicy = opts.Pull

project.Services[i] = service

}

}

// N.B. opts.Build means "force build all", but images can still be built

// when this is false

// e.g. if a service has pull_policy: build or its local image is policy

if opts.Build {

for i, service := range project.Services {

if service.Build == nil {

continue

}

service.PullPolicy = types.PullPolicyBuild

project.Services[i] = service

}

}

if err := applyPlatforms(project, true); err != nil {

return err

}

err := applyScaleOpts(project, opts.scale)

if err != nil {

return err

}

return nil

}

func applyScaleOpts(project *types.Project, opts []string) error {

for _, scale := range opts {

name, val, ok := strings.Cut(scale, "=")

if !ok || val == "" {

return fmt.Errorf("invalid --scale option %q. Should be SERVICE=NUM", scale)

}

replicas, err := strconv.Atoi(val)

if err != nil {

return err

}

err = setServiceScale(project, name, replicas)

if err != nil {

return err

}

}

return nil

}

func (opts createOptions) isPullPolicyValid() bool {

pullPolicies := []string{

types.PullPolicyAlways, types.PullPolicyNever, types.PullPolicyBuild,

types.PullPolicyMissing, types.PullPolicyIfNotPresent,

}

return slices.Contains(pullPolicies, opts.Pull)

}