adbe229fcb
NetBSD can run Docker CLI and then use Docker on some remote machine via DOCKER_HOST. (This can be probably extended to all other Unix-es capable of running just Docker CLI.) Co-authored-by: ChristopherHX <christopher.homberger@web.de>
127 lines
3.2 KiB
Go
127 lines
3.2 KiB
Go
//go:build !(WITHOUT_DOCKER || !(linux || darwin || windows || netbsd))
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package container
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import (
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"context"
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"encoding/base64"
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"encoding/json"
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"fmt"
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"strings"
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"github.com/docker/distribution/reference"
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"github.com/docker/docker/api/types"
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"github.com/docker/docker/api/types/registry"
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"github.com/nektos/act/pkg/common"
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)
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// NewDockerPullExecutor function to create a run executor for the container
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func NewDockerPullExecutor(input NewDockerPullExecutorInput) common.Executor {
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return func(ctx context.Context) error {
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logger := common.Logger(ctx)
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logger.Debugf("%sdocker pull %v", logPrefix, input.Image)
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if common.Dryrun(ctx) {
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return nil
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}
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pull := input.ForcePull
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if !pull {
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imageExists, err := ImageExistsLocally(ctx, input.Image, input.Platform)
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logger.Debugf("Image exists? %v", imageExists)
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if err != nil {
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return fmt.Errorf("unable to determine if image already exists for image '%s' (%s): %w", input.Image, input.Platform, err)
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}
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if !imageExists {
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pull = true
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}
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}
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if !pull {
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return nil
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}
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imageRef := cleanImage(ctx, input.Image)
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logger.Debugf("pulling image '%v' (%s)", imageRef, input.Platform)
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cli, err := GetDockerClient(ctx)
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if err != nil {
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return err
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}
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defer cli.Close()
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imagePullOptions, err := getImagePullOptions(ctx, input)
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if err != nil {
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return err
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}
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reader, err := cli.ImagePull(ctx, imageRef, imagePullOptions)
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_ = logDockerResponse(logger, reader, err != nil)
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if err != nil {
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if imagePullOptions.RegistryAuth != "" && strings.Contains(err.Error(), "unauthorized") {
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logger.Errorf("pulling image '%v' (%s) failed with credentials %s retrying without them, please check for stale docker config files", imageRef, input.Platform, err.Error())
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imagePullOptions.RegistryAuth = ""
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reader, err = cli.ImagePull(ctx, imageRef, imagePullOptions)
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_ = logDockerResponse(logger, reader, err != nil)
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}
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return err
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}
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return nil
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}
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}
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func getImagePullOptions(ctx context.Context, input NewDockerPullExecutorInput) (types.ImagePullOptions, error) {
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imagePullOptions := types.ImagePullOptions{
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Platform: input.Platform,
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}
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logger := common.Logger(ctx)
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if input.Username != "" && input.Password != "" {
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logger.Debugf("using authentication for docker pull")
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authConfig := registry.AuthConfig{
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Username: input.Username,
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Password: input.Password,
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}
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encodedJSON, err := json.Marshal(authConfig)
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if err != nil {
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return imagePullOptions, err
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}
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imagePullOptions.RegistryAuth = base64.URLEncoding.EncodeToString(encodedJSON)
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} else {
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authConfig, err := LoadDockerAuthConfig(ctx, input.Image)
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if err != nil {
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return imagePullOptions, err
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}
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if authConfig.Username == "" && authConfig.Password == "" {
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return imagePullOptions, nil
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}
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logger.Info("using DockerAuthConfig authentication for docker pull")
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encodedJSON, err := json.Marshal(authConfig)
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if err != nil {
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return imagePullOptions, err
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}
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imagePullOptions.RegistryAuth = base64.URLEncoding.EncodeToString(encodedJSON)
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}
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return imagePullOptions, nil
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}
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func cleanImage(ctx context.Context, image string) string {
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ref, err := reference.ParseAnyReference(image)
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if err != nil {
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common.Logger(ctx).Error(err)
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return ""
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}
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return ref.String()
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}
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