compose/cli/cmd/serve.go

89 lines
1.8 KiB
Go

package cmd
import (
"context"
"net"
cliv1 "github.com/docker/api/cli/v1"
containersv1 "github.com/docker/api/containers/v1"
"github.com/docker/api/context/store"
"github.com/docker/api/server"
"github.com/docker/api/server/proxy"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
"github.com/spf13/cobra"
)
type serveOpts struct {
address string
}
func ServeCommand() *cobra.Command {
var opts serveOpts
cmd := &cobra.Command{
Use: "serve",
Short: "Start an api server",
RunE: func(cmd *cobra.Command, args []string) error {
return runServe(cmd.Context(), opts)
},
}
cmd.Flags().StringVar(&opts.address, "address", "", "The address to listen to")
return cmd
}
func runServe(ctx context.Context, opts serveOpts) error {
s := server.New()
listener, err := net.Listen("unix", opts.address)
if err != nil {
return errors.Wrap(err, "listen unix socket")
}
defer listener.Close()
p := proxy.NewContainerApi()
containersv1.RegisterContainersServer(s, p)
cliv1.RegisterCliServer(s, &cliServer{
ctx,
})
go func() {
<-ctx.Done()
logrus.Info("stopping server")
s.Stop()
}()
logrus.WithField("address", opts.address).Info("serving daemon API")
// start the GRPC server to serve on the listener
return s.Serve(listener)
}
type cliServer struct {
ctx context.Context
}
func (cs *cliServer) Contexts(ctx context.Context, request *cliv1.ContextsRequest) (*cliv1.ContextsResponse, error) {
s, err := store.New()
if err != nil {
logrus.Error(err)
return &cliv1.ContextsResponse{}, err
}
contexts, err := s.List()
if err != nil {
logrus.Error(err)
return &cliv1.ContextsResponse{}, err
}
result := &cliv1.ContextsResponse{}
for _, c := range contexts {
result.Contexts = append(result.Contexts, &cliv1.Context{
Name: c.Name,
ContextType: c.Metadata.Type,
})
}
return result, nil
}