Meta tiddeċiedi li tikteb ir-rota tiegħek stess biex taqbad il-ganċijiet mid-docker hub jew mir-reġistru biex taġġorna/tħaddem awtomatikament il-kontenituri fuq is-server, tista 'ssib id-Docker Cli utli, li tgħin biex timmaniġġja d-daemon Docker fis-sistema tiegħek.
Biex taħdem ser ikollok bżonn Go verżjoni mhux inqas minn 1.9.4
Jekk għadek ma bdiltx għal moduli, installa Cli bil-kmand li ġej:
go get github.com/docker/docker/client
Tmexxi kontenitur
L-eżempju li ġej juri kif tħaddem kontenitur bl-użu tal-API Docker. Fuq il-linja tal-kmand inti tuża l-kmand docker run
, iżda nistgħu faċilment ilaħħqu ma 'dan il-kompitu fis-servizz tagħna.
Dan l-eżempju huwa ekwivalenti għat-tħaddim tal-kmand docker run alpine echo hello world
package main {
ctx := context.Background()
cli, err := client.NewEnvClient()
if err != nil {
panic(err)
}
// Делаем docker pull
reader, err := cli.ImagePull(ctx, "docker.io/library/alpine", types.ImagePullOptions{})
if err != nil {
panic(err)
}
io.Copy(os.Stdout, reader)
hostBinding := nat.PortBinding{
HostIP: "0.0.0.0",
HostPort: "8000",
}
containerPort, err := nat.NewPort("tcp", "80")
if err != nil {
panic("Unable to get the port")
}
portBinding := nat.PortMap{containerPort: []nat.PortBinding{hostBinding}}
// Создаем контейнер с заданной конфигурацией
resp, err := cli.ContainerCreate(ctx, &container.Config{
Image: "alpine",
Cmd: []string{"echo", "hello world"},
Tty: true,
}, &container.HostConfig{
PortBindings: portBinding,
}, nil, "")
if err != nil {
panic(err)
}
// Запускаем контейнер
if err := cli.ContainerStart(ctx, resp.ID, types.ContainerStartOptions{}); err != nil {
panic(err)
}
// Получаем логи контейнера
out, err := cli.ContainerLogs(ctx, resp.ID, types.ContainerLogsOptions{ShowStdout: true})
if err != nil {
panic(err)
}
io.Copy(os.Stdout, out)
}
Jkollna lista ta 'kontenituri li qed jaħdmu
Dan l-eżempju huwa ekwivalenti għat-tħaddim tal-kmand docker ps
package main
import (
"context"
"fmt"
"github.com/docker/docker/api/types"
"github.com/docker/docker/client"
)
func main() {
cli, err := client.NewEnvClient()
if err != nil {
panic(err)
}
// Получение списка запуцщенных контейнеров(docker ps)
containers, err := cli.ContainerList(context.Background(), types.ContainerListOptions{})
if err != nil {
panic(err)
}
// Вывод всех идентификаторов контейнеров
for _, container := range containers {
fmt.Println(container.ID)
}
}
Twaqqaf il-kontenituri kollha li qed jaħdmu
Ladarba tkun tgħallimt kif toħloq u tħaddem kontenituri, wasal iż-żmien li titgħallem kif timmaniġġjahom. L-eżempju li ġej se jwaqqaf il-kontenituri kollha li qed jaħdmu.
Tħaddimx dan il-kodiċi fuq server ta' produzzjoni!
package main
import (
"context"
"fmt"
"github.com/docker/docker/api/types"
"github.com/docker/docker/client"
)
func main() {
ctx := context.Background()
cli, err := client.NewEnvClient()
if err != nil {
panic(err)
}
// Получение списка запуцщенных контейнеров(docker ps)
containers, err := cli.ContainerList(ctx, types.ContainerListOptions{})
if err != nil {
panic(err)
}
for _, c := range containers {
fmt.Print("Stopping container ", c.ID[:10], "... ")
if err := cli.ContainerStop(ctx, c.ID, nil); err != nil {
panic(err)
}
fmt.Println("Success")
}
}
Wiri taz-zkuk għal kontenitur wieħed
Tista 'taħdem ma' kontenituri individwali. L-eżempju li ġej juri zkuk tal-kontenituri bl-identifikatur speċifikat. Qabel ma tibda, trid tibdel l-ID tal-kontenitur li z-zkuk tiegħu trid tirċievi.
package main
import (
"context"
"io"
"os"
"github.com/docker/docker/api/types"
"github.com/docker/docker/client"
)
func main() {
ctx := context.Background()
cli, err := client.NewEnvClient()
if err != nil {
panic(err)
}
options := types.ContainerLogsOptions{ShowStdout: true}
// Измените id контейнера здесь
out, err := cli.ContainerLogs(ctx, "f1064a8a4c82", options)
if err != nil {
panic(err)
}
io.Copy(os.Stdout, out)
}
Getting lista ta 'immaġini
Dan l-eżempju huwa ekwivalenti għat-tħaddim tal-kmand docker image ls
package main
import (
"context"
"fmt"
"github.com/docker/docker/api/types"
"github.com/docker/docker/client"
)
func main() {
cli, err := client.NewEnvClient()
if err != nil {
panic(err)
}
// Получение списка образов
images, err := cli.ImageList(context.Background(), types.ImageListOptions{})
if err != nil {
panic(err)
}
for _, image := range images {
fmt.Println(image.ID)
}
}
Iġbed
Dan l-eżempju huwa ekwivalenti għat-tħaddim tal-kmand docker pull
package main
import (
"context"
"io"
"os"
"github.com/docker/docker/api/types"
"github.com/docker/docker/client"
)
func main() {
ctx := context.Background()
cli, err := client.NewEnvClient()
if err != nil {
panic(err)
}
// docker pull alpine
out, err := cli.ImagePull(ctx, "docker.io/library/alpine", types.ImagePullOptions{})
if err != nil {
panic(err)
}
defer out.Close()
io.Copy(os.Stdout, out)
}
Tniżżil ta' immaġni bl-awtentikazzjoni tal-utent
Dan l-eżempju huwa ekwivalenti għat-tħaddim tal-kmand docker pull
, bl-awtentikazzjoni.
Id-dejta tal-awtentikazzjoni tintbagħat f'test ċar. Ir-reġistru uffiċjali tad-docker juża HTTPS,
reġistri privati jridu jiġu kkonfigurati wkoll biex jittrasferixxu data bl-użu ta' HTTPS.
package main
import (
"context"
"encoding/base64"
"encoding/json"
"io"
"os"
"github.com/docker/docker/api/types"
"github.com/docker/docker/client"
)
func main() {
ctx := context.Background()
cli, err := client.NewEnvClient()
if err != nil {
panic(err)
}
// Создание конфига с данными для аутентификации
authConfig := types.AuthConfig{
Username: "username",
Password: "password",
}
encodedJSON, err := json.Marshal(authConfig)
if err != nil {
panic(err)
}
authStr := base64.URLEncoding.EncodeToString(encodedJSON)
out, err := cli.ImagePull(ctx, "docker.io/library/alpine", types.ImagePullOptions{RegistryAuth: authStr})
if err != nil {
panic(err)
}
defer out.Close()
io.Copy(os.Stdout, out)
}
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