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chore: internal docker package with handy PullImage and CreateContainerWithImagePull methods

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This commit is contained in:
Pasha Sviderski
2025-09-26 21:24:56 +10:00
parent 20cf98d42e
commit 27bbbe7186
4 changed files with 152 additions and 35 deletions
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pkg/client/container.go
+4 -35
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@@ -4,17 +4,14 @@ import (
"context"
"errors"
"fmt"
"os"
"strings"
dockercommand "github.com/docker/cli/cli/command"
dockerconfig "github.com/docker/cli/cli/config"
"github.com/docker/compose/v2/pkg/progress"
"github.com/docker/docker/api/types/container"
"github.com/docker/docker/api/types/registry"
dockerclient "github.com/docker/docker/client"
"github.com/docker/docker/pkg/jsonmessage"
"github.com/psviderski/uncloud/internal/machine/docker"
"github.com/psviderski/uncloud/internal/docker"
machinedocker "github.com/psviderski/uncloud/internal/machine/docker"
"github.com/psviderski/uncloud/internal/secret"
"github.com/psviderski/uncloud/pkg/api"
"google.golang.org/grpc/status"
@@ -94,9 +91,9 @@ func (cli *Client) pullImageWithProgress(ctx context.Context, image, machineName
StatusText: "Pulling",
})
opts := docker.PullOptions{}
opts := machinedocker.PullOptions{}
// Try to retrieve the authentication token for the image from the default local Docker config file.
if encodedAuth, err := retrieveRegistryAuthFromDocker(image); err == nil && encodedAuth != "" {
if encodedAuth, err := docker.RetrieveLocalDockerRegistryAuth(image); err == nil {
// If RegistryAuth is empty, Uncloud daemon will try to retrieve the credentials from its own Docker config.
opts.RegistryAuth = encodedAuth
}
@@ -155,34 +152,6 @@ func (cli *Client) pullImageWithProgress(ctx context.Context, image, machineName
return nil
}
// retrieveRegistryAuthFromDocker retrieves the authentication token for the specified image from the local Docker
// config file. It returns the encoded authentication token if it contains any credentials, or an empty string if
// no credentials are found.
func retrieveRegistryAuthFromDocker(image string) (string, error) {
// Try to retrieve the authentication token for the image from the default local Docker config file.
dockerConfig := dockerconfig.LoadDefaultConfigFile(os.Stderr)
encodedAuth, err := dockercommand.RetrieveAuthTokenFromImage(dockerConfig, image)
if err != nil {
return "", err
}
// The encodedAuth can be a base64-encoded "{}" (empty JSON object) or include a server address but no credentials.
// Return encodedAuth only if it contains any credentials.
auth, err := registry.DecodeAuthConfig(encodedAuth)
if err != nil {
return "", fmt.Errorf("decode auth config: %w", err)
}
if auth.Username == "" &&
auth.Password == "" &&
auth.Auth == "" &&
auth.IdentityToken == "" &&
auth.RegistryToken == "" {
return "", nil
}
return encodedAuth, nil
}
// toPullProgressEvent converts a JSON progress message from the Docker API to a progress event.
// It's based on toPullProgressEvent from Docker Compose.
func toPullProgressEvent(jm jsonmessage.JSONMessage) *progress.Event {