diff options
Diffstat (limited to 'vendor/github.com')
| -rw-r--r-- | vendor/github.com/containers/common/libimage/pull.go | 66 |
1 files changed, 30 insertions, 36 deletions
diff --git a/vendor/github.com/containers/common/libimage/pull.go b/vendor/github.com/containers/common/libimage/pull.go index 84ce107ee..ff93b6ed8 100644 --- a/vendor/github.com/containers/common/libimage/pull.go +++ b/vendor/github.com/containers/common/libimage/pull.go @@ -4,6 +4,7 @@ import ( "context" "fmt" "io" + "runtime" "strings" "time" @@ -446,12 +447,18 @@ func (r *Runtime) copySingleImageFromRegistry(ctx context.Context, imageName str // If there's already a local image "localhost/foo", then we should // attempt pulling that instead of doing the full short-name dance. // - // NOTE: we must ignore the platform of a local image when doing - // lookups here, even if arch/os/variant is set. Some images set an - // incorrect or even invalid platform (see containers/podman/issues/10682). - // Doing the lookup while ignoring the platform checks prevents - // redundantly downloading the same image. - localImage, resolvedImageName, err = r.LookupImage(imageName, nil) + // NOTE that we only do platform checks if the specified values differ + // from the local platform. Unfortunately, there are many images used + // in the wild which don't set the correct value(s) in the config + // causing various issues such as containers/podman/issues/10682. + lookupImageOptions := &LookupImageOptions{Variant: options.Variant} + if options.Architecture != runtime.GOARCH { + lookupImageOptions.Architecture = options.Architecture + } + if options.OS != runtime.GOOS { + lookupImageOptions.OS = options.OS + } + localImage, resolvedImageName, err = r.LookupImage(imageName, lookupImageOptions) if err != nil && errors.Cause(err) != storage.ErrImageUnknown { logrus.Errorf("Looking up %s in local storage: %v", imageName, err) } @@ -464,37 +471,18 @@ func (r *Runtime) copySingleImageFromRegistry(ctx context.Context, imageName str } } - customPlatform := false - if len(options.Architecture)+len(options.OS)+len(options.Variant) > 0 { - customPlatform = true - // Unless the pull policy is "always", we must pessimistically assume - // that the local image has an invalid architecture (see - // containers/podman/issues/10682). Hence, whenever the user requests - // a custom platform, set the pull policy to "always" to make sure - // we're pulling down the image. + customPlatform := len(options.Architecture)+len(options.OS)+len(options.Variant) > 0 + if customPlatform && pullPolicy != config.PullPolicyAlways && pullPolicy != config.PullPolicyNever { + // Unless the pull policy is always/never, we must + // pessimistically assume that the local image has an invalid + // architecture (see containers/podman/issues/10682). Hence, + // whenever the user requests a custom platform, set the pull + // policy to "newer" to make sure we're pulling down the + // correct image. // - // NOTE that this is will even override --pull={false,never}. This is - // very likely a bug but a consistent one in Podman/Buildah and should - // be addressed at a later point. - if pullPolicy != config.PullPolicyAlways && pullPolicy != config.PullPolicyNever { - switch { - // User input clearly refer to a local image. - case strings.HasPrefix(imageName, "localhost/"): - logrus.Debugf("Enforcing pull policy to %q to support custom platform (arch: %q, os: %q, variant: %q)", "never", options.Architecture, options.OS, options.Variant) - pullPolicy = config.PullPolicyNever - - // Image resolved to a local one, so let's still have a - // look at the registries or aliases but use it - // otherwise. - case strings.HasPrefix(resolvedImageName, "localhost/"): - logrus.Debugf("Enforcing pull policy to %q to support custom platform (arch: %q, os: %q, variant: %q)", "newer", options.Architecture, options.OS, options.Variant) - pullPolicy = config.PullPolicyNewer - - default: - logrus.Debugf("Enforcing pull policy to %q to support custom platform (arch: %q, os: %q, variant: %q)", "always", options.Architecture, options.OS, options.Variant) - pullPolicy = config.PullPolicyAlways - } - } + // NOTE that this is will even override --pull={false,never}. + pullPolicy = config.PullPolicyNewer + logrus.Debugf("Enforcing pull policy to %q to pull custom platform (arch: %q, os: %q, variant: %q) - local image may mistakenly specify wrong platform", pullPolicy, options.Architecture, options.OS, options.Variant) } if pullPolicy == config.PullPolicyNever { @@ -540,6 +528,12 @@ func (r *Runtime) copySingleImageFromRegistry(ctx context.Context, imageName str sys := r.systemContextCopy() resolved, err := shortnames.Resolve(sys, imageName) if err != nil { + // TODO: that is a too big of a hammer since we should only + // ignore errors that indicate that there's no alias and no + // USRs. Must be addressed in c/image first. + if localImage != nil && pullPolicy == config.PullPolicyNewer { + return []string{resolvedImageName}, nil + } return nil, err } |