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0d48a93f57
This wasn't always getting passed, so adding it to the wrapper function where it'll pass the `WithContext()` loader method at the last moment. Signed-off-by: Milas Bowman <milas.bowman@docker.com>
103 lines
2.7 KiB
Go
103 lines
2.7 KiB
Go
/*
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Copyright 2020 Docker Compose CLI authors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package compose
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import (
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"context"
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"fmt"
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"strconv"
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"strings"
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"github.com/docker/cli/cli/command"
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"github.com/compose-spec/compose-go/v2/types"
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"golang.org/x/exp/maps"
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"github.com/docker/compose/v2/pkg/api"
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"github.com/spf13/cobra"
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)
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type scaleOptions struct {
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*ProjectOptions
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noDeps bool
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}
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func scaleCommand(p *ProjectOptions, dockerCli command.Cli, backend api.Service) *cobra.Command {
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opts := scaleOptions{
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ProjectOptions: p,
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}
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scaleCmd := &cobra.Command{
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Use: "scale [SERVICE=REPLICAS...]",
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Short: "Scale services ",
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Args: cobra.MinimumNArgs(1),
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RunE: Adapt(func(ctx context.Context, args []string) error {
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serviceTuples, err := parseServicesReplicasArgs(args)
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if err != nil {
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return err
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}
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return runScale(ctx, dockerCli, backend, opts, serviceTuples)
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}),
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ValidArgsFunction: completeServiceNames(dockerCli, p),
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}
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flags := scaleCmd.Flags()
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flags.BoolVar(&opts.noDeps, "no-deps", false, "Don't start linked services.")
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return scaleCmd
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}
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func runScale(ctx context.Context, dockerCli command.Cli, backend api.Service, opts scaleOptions, serviceReplicaTuples map[string]int) error {
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services := maps.Keys(serviceReplicaTuples)
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project, err := opts.ToProject(ctx, dockerCli, services)
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if err != nil {
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return err
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}
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if opts.noDeps {
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if project, err = project.WithSelectedServices(services, types.IgnoreDependencies); err != nil {
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return err
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}
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}
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for key, value := range serviceReplicaTuples {
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service, err := project.GetService(key)
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if err != nil {
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return err
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}
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service.SetScale(value)
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project.Services[key] = service
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}
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return backend.Scale(ctx, project, api.ScaleOptions{Services: services})
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}
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func parseServicesReplicasArgs(args []string) (map[string]int, error) {
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serviceReplicaTuples := map[string]int{}
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for _, arg := range args {
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key, val, ok := strings.Cut(arg, "=")
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if !ok || key == "" || val == "" {
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return nil, fmt.Errorf("invalid scale specifier: %s", arg)
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}
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intValue, err := strconv.Atoi(val)
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if err != nil {
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return nil, fmt.Errorf("invalid scale specifier: can't parse replica value as int: %v", arg)
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}
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serviceReplicaTuples[key] = intValue
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}
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return serviceReplicaTuples, nil
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}
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