Files
fx-serverless/infra/docker/deployer.go
2020-02-21 17:26:39 +08:00

96 lines
2.4 KiB
Go

package docker
import (
"context"
"strconv"
dockerTypes "github.com/docker/docker/api/types"
containerruntimes "github.com/metrue/fx/container_runtimes"
"github.com/metrue/fx/infra"
"github.com/metrue/fx/pkg/spinner"
"github.com/metrue/fx/types"
)
// Deployer manage container
type Deployer struct {
cli containerruntimes.ContainerRuntime
}
// CreateClient create a docker instance
func CreateClient(client containerruntimes.ContainerRuntime) (d *Deployer, err error) {
return &Deployer{cli: client}, nil
}
// Deploy create a Docker container from given image, and bind the constants.FxContainerExposePort to given port
func (d *Deployer) Deploy(ctx context.Context, fn string, name string, image string, ports []types.PortBinding) (err error) {
spinner.Start("deploying " + name)
defer func() {
spinner.Stop("deploying "+name, err)
}()
return d.cli.StartContainer(ctx, name, image, ports)
}
// Update a container
func (d *Deployer) Update(ctx context.Context, name string) error {
return nil
}
// Destroy stop and remove container
func (d *Deployer) Destroy(ctx context.Context, name string) (err error) {
spinner.Start("destroying " + name)
defer func() {
spinner.Stop("destroying "+name, err)
}()
return d.cli.StopContainer(ctx, name)
}
// GetStatus get a service status
func (d *Deployer) GetStatus(ctx context.Context, name string) (types.Service, error) {
var container dockerTypes.ContainerJSON
if err := d.cli.InspectContainer(ctx, name, &container); err != nil {
return types.Service{}, err
}
service := types.Service{
ID: container.ID,
Name: container.Name,
}
for _, bindings := range container.NetworkSettings.Ports {
if len(bindings) > 0 {
binding := bindings[0]
port, err := strconv.Atoi(binding.HostPort)
if err != nil {
return service, err
}
service.Port = port
service.Host = binding.HostIP
service.State = container.State.Status
service.Image = container.Image
break
}
if service.Port != 0 && service.Host != "" {
break
}
}
return service, nil
}
// Ping check healty status of infra
func (d *Deployer) Ping(ctx context.Context) error {
if _, err := d.cli.Version(ctx); err != nil {
return err
}
return nil
}
// List services
func (d *Deployer) List(ctx context.Context, name string) (svcs []types.Service, err error) {
// FIXME support remote host
return d.cli.ListContainer(ctx, name)
}
var (
_ infra.Deployer = &Deployer{}
)