diff options
Diffstat (limited to 'libpod/buildah/config.go')
| -rw-r--r-- | libpod/buildah/config.go | 607 |
1 files changed, 0 insertions, 607 deletions
diff --git a/libpod/buildah/config.go b/libpod/buildah/config.go deleted file mode 100644 index 0759ca9da..000000000 --- a/libpod/buildah/config.go +++ /dev/null @@ -1,607 +0,0 @@ -package buildah - -import ( - "encoding/json" - "path/filepath" - "runtime" - "strings" - "time" - - "github.com/opencontainers/go-digest" - ociv1 "github.com/opencontainers/image-spec/specs-go/v1" - "github.com/pkg/errors" - "github.com/projectatomic/libpod/cmd/podman/docker" -) - -// makeOCIv1Image builds the best OCIv1 image structure we can from the -// contents of the docker image structure. -func makeOCIv1Image(dimage *docker.V2Image) (ociv1.Image, error) { - config := dimage.Config - if config == nil { - config = &dimage.ContainerConfig - } - dcreated := dimage.Created.UTC() - image := ociv1.Image{ - Created: &dcreated, - Author: dimage.Author, - Architecture: dimage.Architecture, - OS: dimage.OS, - Config: ociv1.ImageConfig{ - User: config.User, - ExposedPorts: map[string]struct{}{}, - Env: config.Env, - Entrypoint: config.Entrypoint, - Cmd: config.Cmd, - Volumes: config.Volumes, - WorkingDir: config.WorkingDir, - Labels: config.Labels, - }, - RootFS: ociv1.RootFS{ - Type: "", - DiffIDs: []digest.Digest{}, - }, - History: []ociv1.History{}, - } - for port, what := range config.ExposedPorts { - image.Config.ExposedPorts[string(port)] = what - } - RootFS := docker.V2S2RootFS{} - if dimage.RootFS != nil { - RootFS = *dimage.RootFS - } - if RootFS.Type == docker.TypeLayers { - image.RootFS.Type = docker.TypeLayers - image.RootFS.DiffIDs = append(image.RootFS.DiffIDs, RootFS.DiffIDs...) - } - for _, history := range dimage.History { - hcreated := history.Created.UTC() - ohistory := ociv1.History{ - Created: &hcreated, - CreatedBy: history.CreatedBy, - Author: history.Author, - Comment: history.Comment, - EmptyLayer: history.EmptyLayer, - } - image.History = append(image.History, ohistory) - } - return image, nil -} - -// makeDockerV2S2Image builds the best docker image structure we can from the -// contents of the OCI image structure. -func makeDockerV2S2Image(oimage *ociv1.Image) (docker.V2Image, error) { - image := docker.V2Image{ - V1Image: docker.V1Image{Created: oimage.Created.UTC(), - Author: oimage.Author, - Architecture: oimage.Architecture, - OS: oimage.OS, - ContainerConfig: docker.Config{ - User: oimage.Config.User, - ExposedPorts: docker.PortSet{}, - Env: oimage.Config.Env, - Entrypoint: oimage.Config.Entrypoint, - Cmd: oimage.Config.Cmd, - Volumes: oimage.Config.Volumes, - WorkingDir: oimage.Config.WorkingDir, - Labels: oimage.Config.Labels, - }, - }, - RootFS: &docker.V2S2RootFS{ - Type: "", - DiffIDs: []digest.Digest{}, - }, - History: []docker.V2S2History{}, - } - for port, what := range oimage.Config.ExposedPorts { - image.ContainerConfig.ExposedPorts[docker.Port(port)] = what - } - if oimage.RootFS.Type == docker.TypeLayers { - image.RootFS.Type = docker.TypeLayers - image.RootFS.DiffIDs = append(image.RootFS.DiffIDs, oimage.RootFS.DiffIDs...) - } - for _, history := range oimage.History { - dhistory := docker.V2S2History{ - Created: history.Created.UTC(), - CreatedBy: history.CreatedBy, - Author: history.Author, - Comment: history.Comment, - EmptyLayer: history.EmptyLayer, - } - image.History = append(image.History, dhistory) - } - image.Config = &image.ContainerConfig - return image, nil -} - -// makeDockerV2S1Image builds the best docker image structure we can from the -// contents of the V2S1 image structure. -func makeDockerV2S1Image(manifest docker.V2S1Manifest) (docker.V2Image, error) { - // Treat the most recent (first) item in the history as a description of the image. - if len(manifest.History) == 0 { - return docker.V2Image{}, errors.Errorf("error parsing image configuration from manifest") - } - dimage := docker.V2Image{} - err := json.Unmarshal([]byte(manifest.History[0].V1Compatibility), &dimage) - if err != nil { - return docker.V2Image{}, err - } - if dimage.DockerVersion == "" { - return docker.V2Image{}, errors.Errorf("error parsing image configuration from history") - } - // The DiffID list is intended to contain the sums of _uncompressed_ blobs, and these are most - // likely compressed, so leave the list empty to avoid potential confusion later on. We can - // construct a list with the correct values when we prep layers for pushing, so we don't lose. - // information by leaving this part undone. - rootFS := &docker.V2S2RootFS{ - Type: docker.TypeLayers, - DiffIDs: []digest.Digest{}, - } - // Build a filesystem history. - history := []docker.V2S2History{} - lastID := "" - for i := range manifest.History { - // Decode the compatibility field. - dcompat := docker.V1Compatibility{} - if err = json.Unmarshal([]byte(manifest.History[i].V1Compatibility), &dcompat); err != nil { - return docker.V2Image{}, errors.Errorf("error parsing image compatibility data (%q) from history", manifest.History[i].V1Compatibility) - } - // Skip this history item if it shares the ID of the last one - // that we saw, since the image library will do the same. - if i > 0 && dcompat.ID == lastID { - continue - } - lastID = dcompat.ID - // Construct a new history item using the recovered information. - createdBy := "" - if len(dcompat.ContainerConfig.Cmd) > 0 { - createdBy = strings.Join(dcompat.ContainerConfig.Cmd, " ") - } - h := docker.V2S2History{ - Created: dcompat.Created.UTC(), - Author: dcompat.Author, - CreatedBy: createdBy, - Comment: dcompat.Comment, - EmptyLayer: dcompat.ThrowAway, - } - // Prepend this layer to the list, because a v2s1 format manifest's list is in reverse order - // compared to v2s2, which lists earlier layers before later ones. - history = append([]docker.V2S2History{h}, history...) - } - dimage.RootFS = rootFS - dimage.History = history - return dimage, nil -} - -func (b *Builder) initConfig() { - image := ociv1.Image{} - dimage := docker.V2Image{} - if len(b.Config) > 0 { - // Try to parse the image configuration. If we fail start over from scratch. - if err := json.Unmarshal(b.Config, &dimage); err == nil && dimage.DockerVersion != "" { - if image, err = makeOCIv1Image(&dimage); err != nil { - image = ociv1.Image{} - } - } else { - if err := json.Unmarshal(b.Config, &image); err != nil { - if dimage, err = makeDockerV2S2Image(&image); err != nil { - dimage = docker.V2Image{} - } - } - } - b.OCIv1 = image - b.Docker = dimage - } else { - // Try to dig out the image configuration from the manifest. - manifest := docker.V2S1Manifest{} - if err := json.Unmarshal(b.Manifest, &manifest); err == nil && manifest.SchemaVersion == 1 { - if dimage, err = makeDockerV2S1Image(manifest); err == nil { - if image, err = makeOCIv1Image(&dimage); err != nil { - image = ociv1.Image{} - } - } - } - b.OCIv1 = image - b.Docker = dimage - } - if len(b.Manifest) > 0 { - // Attempt to recover format-specific data from the manifest. - v1Manifest := ociv1.Manifest{} - if json.Unmarshal(b.Manifest, &v1Manifest) == nil { - b.ImageAnnotations = v1Manifest.Annotations - } - } - b.fixupConfig() -} - -func (b *Builder) fixupConfig() { - if b.Docker.Config != nil { - // Prefer image-level settings over those from the container it was built from. - b.Docker.ContainerConfig = *b.Docker.Config - } - b.Docker.Config = &b.Docker.ContainerConfig - b.Docker.DockerVersion = "" - now := time.Now().UTC() - if b.Docker.Created.IsZero() { - b.Docker.Created = now - } - if b.OCIv1.Created == nil || b.OCIv1.Created.IsZero() { - b.OCIv1.Created = &now - } - if b.OS() == "" { - b.SetOS(runtime.GOOS) - } - if b.Architecture() == "" { - b.SetArchitecture(runtime.GOARCH) - } - if b.WorkDir() == "" { - b.SetWorkDir(string(filepath.Separator)) - } -} - -// Annotations returns a set of key-value pairs from the image's manifest. -func (b *Builder) Annotations() map[string]string { - return copyStringStringMap(b.ImageAnnotations) -} - -// SetAnnotation adds or overwrites a key's value from the image's manifest. -// Note: this setting is not present in the Docker v2 image format, so it is -// discarded when writing images using Docker v2 formats. -func (b *Builder) SetAnnotation(key, value string) { - if b.ImageAnnotations == nil { - b.ImageAnnotations = map[string]string{} - } - b.ImageAnnotations[key] = value -} - -// UnsetAnnotation removes a key and its value from the image's manifest, if -// it's present. -func (b *Builder) UnsetAnnotation(key string) { - delete(b.ImageAnnotations, key) -} - -// ClearAnnotations removes all keys and their values from the image's -// manifest. -func (b *Builder) ClearAnnotations() { - b.ImageAnnotations = map[string]string{} -} - -// CreatedBy returns a description of how this image was built. -func (b *Builder) CreatedBy() string { - return b.ImageCreatedBy -} - -// SetCreatedBy sets the description of how this image was built. -func (b *Builder) SetCreatedBy(how string) { - b.ImageCreatedBy = how -} - -// OS returns a name of the OS on which the container, or a container built -// using an image built from this container, is intended to be run. -func (b *Builder) OS() string { - return b.OCIv1.OS -} - -// SetOS sets the name of the OS on which the container, or a container built -// using an image built from this container, is intended to be run. -func (b *Builder) SetOS(os string) { - b.OCIv1.OS = os - b.Docker.OS = os -} - -// Architecture returns a name of the architecture on which the container, or a -// container built using an image built from this container, is intended to be -// run. -func (b *Builder) Architecture() string { - return b.OCIv1.Architecture -} - -// SetArchitecture sets the name of the architecture on which the container, or -// a container built using an image built from this container, is intended to -// be run. -func (b *Builder) SetArchitecture(arch string) { - b.OCIv1.Architecture = arch - b.Docker.Architecture = arch -} - -// Maintainer returns contact information for the person who built the image. -func (b *Builder) Maintainer() string { - return b.OCIv1.Author -} - -// SetMaintainer sets contact information for the person who built the image. -func (b *Builder) SetMaintainer(who string) { - b.OCIv1.Author = who - b.Docker.Author = who -} - -// User returns information about the user as whom the container, or a -// container built using an image built from this container, should be run. -func (b *Builder) User() string { - return b.OCIv1.Config.User -} - -// SetUser sets information about the user as whom the container, or a -// container built using an image built from this container, should be run. -// Acceptable forms are a user name or ID, optionally followed by a colon and a -// group name or ID. -func (b *Builder) SetUser(spec string) { - b.OCIv1.Config.User = spec - b.Docker.Config.User = spec -} - -// WorkDir returns the default working directory for running commands in the -// container, or in a container built using an image built from this container. -func (b *Builder) WorkDir() string { - return b.OCIv1.Config.WorkingDir -} - -// SetWorkDir sets the location of the default working directory for running -// commands in the container, or in a container built using an image built from -// this container. -func (b *Builder) SetWorkDir(there string) { - b.OCIv1.Config.WorkingDir = there - b.Docker.Config.WorkingDir = there -} - -// Shell returns the default shell for running commands in the -// container, or in a container built using an image built from this container. -func (b *Builder) Shell() []string { - return b.Docker.Config.Shell -} - -// SetShell sets the default shell for running -// commands in the container, or in a container built using an image built from -// this container. -// Note: this setting is not present in the OCIv1 image format, so it is -// discarded when writing images using OCIv1 formats. -func (b *Builder) SetShell(shell []string) { - b.Docker.Config.Shell = shell -} - -// Env returns a list of key-value pairs to be set when running commands in the -// container, or in a container built using an image built from this container. -func (b *Builder) Env() []string { - return copyStringSlice(b.OCIv1.Config.Env) -} - -// SetEnv adds or overwrites a value to the set of environment strings which -// should be set when running commands in the container, or in a container -// built using an image built from this container. -func (b *Builder) SetEnv(k string, v string) { - reset := func(s *[]string) { - n := []string{} - for i := range *s { - if !strings.HasPrefix((*s)[i], k+"=") { - n = append(n, (*s)[i]) - } - } - n = append(n, k+"="+v) - *s = n - } - reset(&b.OCIv1.Config.Env) - reset(&b.Docker.Config.Env) -} - -// UnsetEnv removes a value from the set of environment strings which should be -// set when running commands in this container, or in a container built using -// an image built from this container. -func (b *Builder) UnsetEnv(k string) { - unset := func(s *[]string) { - n := []string{} - for i := range *s { - if !strings.HasPrefix((*s)[i], k+"=") { - n = append(n, (*s)[i]) - } - } - *s = n - } - unset(&b.OCIv1.Config.Env) - unset(&b.Docker.Config.Env) -} - -// ClearEnv removes all values from the set of environment strings which should -// be set when running commands in this container, or in a container built -// using an image built from this container. -func (b *Builder) ClearEnv() { - b.OCIv1.Config.Env = []string{} - b.Docker.Config.Env = []string{} -} - -// Cmd returns the default command, or command parameters if an Entrypoint is -// set, to use when running a container built from an image built from this -// container. -func (b *Builder) Cmd() []string { - return copyStringSlice(b.OCIv1.Config.Cmd) -} - -// SetCmd sets the default command, or command parameters if an Entrypoint is -// set, to use when running a container built from an image built from this -// container. -func (b *Builder) SetCmd(cmd []string) { - b.OCIv1.Config.Cmd = copyStringSlice(cmd) - b.Docker.Config.Cmd = copyStringSlice(cmd) -} - -// Entrypoint returns the command to be run for containers built from images -// built from this container. -func (b *Builder) Entrypoint() []string { - return copyStringSlice(b.OCIv1.Config.Entrypoint) -} - -// SetEntrypoint sets the command to be run for in containers built from images -// built from this container. -func (b *Builder) SetEntrypoint(ep []string) { - b.OCIv1.Config.Entrypoint = copyStringSlice(ep) - b.Docker.Config.Entrypoint = copyStringSlice(ep) -} - -// Labels returns a set of key-value pairs from the image's runtime -// configuration. -func (b *Builder) Labels() map[string]string { - return copyStringStringMap(b.OCIv1.Config.Labels) -} - -// SetLabel adds or overwrites a key's value from the image's runtime -// configuration. -func (b *Builder) SetLabel(k string, v string) { - if b.OCIv1.Config.Labels == nil { - b.OCIv1.Config.Labels = map[string]string{} - } - b.OCIv1.Config.Labels[k] = v - if b.Docker.Config.Labels == nil { - b.Docker.Config.Labels = map[string]string{} - } - b.Docker.Config.Labels[k] = v -} - -// UnsetLabel removes a key and its value from the image's runtime -// configuration, if it's present. -func (b *Builder) UnsetLabel(k string) { - delete(b.OCIv1.Config.Labels, k) - delete(b.Docker.Config.Labels, k) -} - -// ClearLabels removes all keys and their values from the image's runtime -// configuration. -func (b *Builder) ClearLabels() { - b.OCIv1.Config.Labels = map[string]string{} - b.Docker.Config.Labels = map[string]string{} -} - -// Ports returns the set of ports which should be exposed when a container -// based on an image built from this container is run. -func (b *Builder) Ports() []string { - p := []string{} - for k := range b.OCIv1.Config.ExposedPorts { - p = append(p, k) - } - return p -} - -// SetPort adds or overwrites an exported port in the set of ports which should -// be exposed when a container based on an image built from this container is -// run. -func (b *Builder) SetPort(p string) { - if b.OCIv1.Config.ExposedPorts == nil { - b.OCIv1.Config.ExposedPorts = map[string]struct{}{} - } - b.OCIv1.Config.ExposedPorts[p] = struct{}{} - if b.Docker.Config.ExposedPorts == nil { - b.Docker.Config.ExposedPorts = make(docker.PortSet) - } - b.Docker.Config.ExposedPorts[docker.Port(p)] = struct{}{} -} - -// UnsetPort removes an exposed port from the set of ports which should be -// exposed when a container based on an image built from this container is run. -func (b *Builder) UnsetPort(p string) { - delete(b.OCIv1.Config.ExposedPorts, p) - delete(b.Docker.Config.ExposedPorts, docker.Port(p)) -} - -// ClearPorts empties the set of ports which should be exposed when a container -// based on an image built from this container is run. -func (b *Builder) ClearPorts() { - b.OCIv1.Config.ExposedPorts = map[string]struct{}{} - b.Docker.Config.ExposedPorts = docker.PortSet{} -} - -// Volumes returns a list of filesystem locations which should be mounted from -// outside of the container when a container built from an image built from -// this container is run. -func (b *Builder) Volumes() []string { - v := []string{} - for k := range b.OCIv1.Config.Volumes { - v = append(v, k) - } - return v -} - -// AddVolume adds a location to the image's list of locations which should be -// mounted from outside of the container when a container based on an image -// built from this container is run. -func (b *Builder) AddVolume(v string) { - if b.OCIv1.Config.Volumes == nil { - b.OCIv1.Config.Volumes = map[string]struct{}{} - } - b.OCIv1.Config.Volumes[v] = struct{}{} - if b.Docker.Config.Volumes == nil { - b.Docker.Config.Volumes = map[string]struct{}{} - } - b.Docker.Config.Volumes[v] = struct{}{} -} - -// RemoveVolume removes a location from the list of locations which should be -// mounted from outside of the container when a container based on an image -// built from this container is run. -func (b *Builder) RemoveVolume(v string) { - delete(b.OCIv1.Config.Volumes, v) - delete(b.Docker.Config.Volumes, v) -} - -// ClearVolumes removes all locations from the image's list of locations which -// should be mounted from outside of the container when a container based on an -// image built from this container is run. -func (b *Builder) ClearVolumes() { - b.OCIv1.Config.Volumes = map[string]struct{}{} - b.Docker.Config.Volumes = map[string]struct{}{} -} - -// Hostname returns the hostname which will be set in the container and in -// containers built using images built from the container. -func (b *Builder) Hostname() string { - return b.Docker.Config.Hostname -} - -// SetHostname sets the hostname which will be set in the container and in -// containers built using images built from the container. -// Note: this setting is not present in the OCIv1 image format, so it is -// discarded when writing images using OCIv1 formats. -func (b *Builder) SetHostname(name string) { - b.Docker.Config.Hostname = name -} - -// Domainname returns the domainname which will be set in the container and in -// containers built using images built from the container. -func (b *Builder) Domainname() string { - return b.Docker.Config.Domainname -} - -// SetDomainname sets the domainname which will be set in the container and in -// containers built using images built from the container. -// Note: this setting is not present in the OCIv1 image format, so it is -// discarded when writing images using OCIv1 formats. -func (b *Builder) SetDomainname(name string) { - b.Docker.Config.Domainname = name -} - -// SetDefaultMountsFilePath sets the mounts file path for testing purposes -func (b *Builder) SetDefaultMountsFilePath(path string) { - b.DefaultMountsFilePath = path -} - -// Comment returns the comment which will be set in the container and in -//containers built using images buiilt from the container -func (b *Builder) Comment() string { - return b.Docker.Comment -} - -// SetComment sets the Comment which will be set in the container and in -// containers built using images built from the container. -func (b *Builder) SetComment(comment string) { - b.Docker.Comment = comment - b.OCIv1.History[0].Comment = comment -} - -// StopSignal returns the signal which will be set in the container and in -//containers built using images buiilt from the container -func (b *Builder) StopSignal() string { - return b.Docker.Config.StopSignal -} - -// SetStopSignal sets the signal which will be set in the container and in -// containers built using images built from the container. -func (b *Builder) SetStopSignal(stopSignal string) { - b.OCIv1.Config.StopSignal = stopSignal - b.Docker.Config.StopSignal = stopSignal -} |