DockerCLI/cli/command/stack/swarm/list.go

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package swarm
import (
"context"
"github.com/docker/cli/cli/command"
"github.com/docker/cli/cli/command/formatter"
"github.com/docker/cli/cli/compose/convert"
"github.com/docker/docker/api/types"
"github.com/pkg/errors"
)
// GetStacks lists the swarm stacks.
func GetStacks(dockerCli command.Cli) ([]*formatter.Stack, error) {
services, err := dockerCli.Client().ServiceList(
context.Background(),
types.ServiceListOptions{Filters: getAllStacksFilter()})
if err != nil {
return nil, err
}
m := make(map[string]*formatter.Stack)
for _, service := range services {
labels := service.Spec.Labels
name, ok := labels[convert.LabelNamespace]
if !ok {
return nil, errors.Errorf("cannot get label %s for service %s",
convert.LabelNamespace, service.ID)
}
ztack, ok := m[name]
if !ok {
m[name] = &formatter.Stack{
Name: name,
Services: 1,
Orchestrator: "Swarm",
}
} else {
ztack.Services++
}
}
var stacks []*formatter.Stack
for _, stack := range m {
stacks = append(stacks, stack)
}
return stacks, nil
}