DockerCLI/cli/command/stack/kubernetes/services.go

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package kubernetes
import (
"fmt"
"github.com/docker/cli/cli/command/formatter"
"github.com/docker/cli/cli/command/stack/options"
"github.com/docker/cli/kubernetes/labels"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)
// RunServices is the kubernetes implementation of docker stack services
func RunServices(dockerCli *KubeCli, opts options.Services) error {
// Initialize clients
client, err := dockerCli.composeClient()
if err != nil {
return nil
}
stacks, err := client.Stacks(false)
if err != nil {
return err
}
replicas := client.ReplicaSets()
if _, err := stacks.Get(opts.Namespace); err != nil {
fmt.Fprintf(dockerCli.Err(), "Nothing found in stack: %s\n", opts.Namespace)
return nil
}
replicasList, err := replicas.List(metav1.ListOptions{LabelSelector: labels.SelectorForStack(opts.Namespace)})
if err != nil {
return err
}
servicesList, err := client.Services().List(metav1.ListOptions{LabelSelector: labels.SelectorForStack(opts.Namespace)})
if err != nil {
return err
}
// Convert Replicas sets and kubernetes services to swam services and formatter informations
services, info, err := replicasToServices(replicasList, servicesList)
if err != nil {
return err
}
if opts.Quiet {
info = map[string]formatter.ServiceListInfo{}
}
format := opts.Format
if len(format) == 0 {
if len(dockerCli.ConfigFile().ServicesFormat) > 0 && !opts.Quiet {
format = dockerCli.ConfigFile().ServicesFormat
} else {
format = formatter.TableFormatKey
}
}
servicesCtx := formatter.Context{
Output: dockerCli.Out(),
Format: formatter.NewServiceListFormat(format, opts.Quiet),
}
return formatter.ServiceListWrite(servicesCtx, services, info)
}