mirror of
https://github.com/containers/podman.git
synced 2025-09-20 19:24:58 +08:00
d01ae436ee
Make sure that the directory formats are not just substituted with their archive counterparts but actually tar'ed up directories. Also make sure that the clients don't get chown errors by setting rootless user and group ID instead of O when running in the user namespace. Fixes: #15897 Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>
646 lines
20 KiB
Go
646 lines
20 KiB
Go
package libpod
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import (
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"errors"
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"fmt"
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"io"
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"net/http"
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"os"
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"strconv"
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"strings"
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"github.com/containers/buildah"
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"github.com/containers/common/libimage"
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"github.com/containers/common/pkg/ssh"
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"github.com/containers/image/v5/manifest"
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"github.com/containers/podman/v4/libpod"
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"github.com/containers/podman/v4/libpod/define"
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"github.com/containers/podman/v4/pkg/api/handlers"
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"github.com/containers/podman/v4/pkg/api/handlers/utils"
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api "github.com/containers/podman/v4/pkg/api/types"
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"github.com/containers/podman/v4/pkg/domain/entities"
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"github.com/containers/podman/v4/pkg/domain/entities/reports"
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"github.com/containers/podman/v4/pkg/domain/infra/abi"
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domainUtils "github.com/containers/podman/v4/pkg/domain/utils"
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"github.com/containers/podman/v4/pkg/errorhandling"
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"github.com/containers/podman/v4/pkg/rootless"
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"github.com/containers/podman/v4/pkg/util"
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utils2 "github.com/containers/podman/v4/utils"
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"github.com/containers/storage"
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"github.com/containers/storage/pkg/archive"
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"github.com/containers/storage/pkg/chrootarchive"
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"github.com/containers/storage/pkg/idtools"
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"github.com/gorilla/schema"
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)
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// Commit
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// author string
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// "container"
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// repo string
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// tag string
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// message
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// pause bool
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// changes []string
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// create
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func ImageExists(w http.ResponseWriter, r *http.Request) {
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runtime := r.Context().Value(api.RuntimeKey).(*libpod.Runtime)
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name := utils.GetName(r)
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ir := abi.ImageEngine{Libpod: runtime}
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report, err := ir.Exists(r.Context(), name)
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if err != nil {
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utils.Error(w, http.StatusNotFound, fmt.Errorf("failed to find image %s: %w", name, err))
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return
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}
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if !report.Value {
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utils.Error(w, http.StatusNotFound, fmt.Errorf("failed to find image %s", name))
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return
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}
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utils.WriteResponse(w, http.StatusNoContent, "")
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}
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func ImageTree(w http.ResponseWriter, r *http.Request) {
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runtime := r.Context().Value(api.RuntimeKey).(*libpod.Runtime)
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name := utils.GetName(r)
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decoder := r.Context().Value(api.DecoderKey).(*schema.Decoder)
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query := struct {
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WhatRequires bool `schema:"whatrequires"`
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}{
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WhatRequires: false,
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}
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if err := decoder.Decode(&query, r.URL.Query()); err != nil {
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utils.Error(w, http.StatusBadRequest, fmt.Errorf("failed to parse parameters for %s: %w", r.URL.String(), err))
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return
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}
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ir := abi.ImageEngine{Libpod: runtime}
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options := entities.ImageTreeOptions{WhatRequires: query.WhatRequires}
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report, err := ir.Tree(r.Context(), name, options)
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if err != nil {
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if errors.Is(err, storage.ErrImageUnknown) {
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utils.Error(w, http.StatusNotFound, fmt.Errorf("failed to find image %s: %w", name, err))
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return
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}
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utils.Error(w, http.StatusInternalServerError, fmt.Errorf("failed to generate image tree for %s: %w", name, err))
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return
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}
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utils.WriteResponse(w, http.StatusOK, report)
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}
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func GetImage(w http.ResponseWriter, r *http.Request) {
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name := utils.GetName(r)
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newImage, err := utils.GetImage(r, name)
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if err != nil {
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utils.Error(w, http.StatusNotFound, fmt.Errorf("failed to find image %s: %w", name, err))
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return
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}
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options := &libimage.InspectOptions{WithParent: true, WithSize: true}
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inspect, err := newImage.Inspect(r.Context(), options)
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if err != nil {
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utils.Error(w, http.StatusInternalServerError, fmt.Errorf("failed in inspect image %s: %w", inspect.ID, err))
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return
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}
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utils.WriteResponse(w, http.StatusOK, inspect)
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}
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func PruneImages(w http.ResponseWriter, r *http.Request) {
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var err error
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runtime := r.Context().Value(api.RuntimeKey).(*libpod.Runtime)
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decoder := r.Context().Value(api.DecoderKey).(*schema.Decoder)
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query := struct {
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All bool `schema:"all"`
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External bool `schema:"external"`
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}{
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// override any golang type defaults
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}
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filterMap, err := util.PrepareFilters(r)
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if err != nil {
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utils.Error(w, http.StatusInternalServerError,
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fmt.Errorf("failed to decode filter parameters for %s: %w", r.URL.String(), err))
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return
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}
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if err := decoder.Decode(&query, r.URL.Query()); err != nil {
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utils.Error(w, http.StatusInternalServerError,
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fmt.Errorf("failed to parse parameters for %s: %w", r.URL.String(), err))
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return
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}
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libpodFilters := []string{}
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if _, found := r.URL.Query()["filters"]; found {
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dangling := (*filterMap)["all"]
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if len(dangling) > 0 {
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query.All, err = strconv.ParseBool((*filterMap)["all"][0])
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if err != nil {
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utils.InternalServerError(w, err)
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return
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}
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}
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// dangling is special and not implemented in the libpod side of things
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delete(*filterMap, "dangling")
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for k, v := range *filterMap {
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libpodFilters = append(libpodFilters, fmt.Sprintf("%s=%s", k, v[0]))
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}
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}
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imageEngine := abi.ImageEngine{Libpod: runtime}
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pruneOptions := entities.ImagePruneOptions{
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All: query.All,
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External: query.External,
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Filter: libpodFilters,
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}
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imagePruneReports, err := imageEngine.Prune(r.Context(), pruneOptions)
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if err != nil {
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utils.Error(w, http.StatusInternalServerError, err)
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return
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}
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utils.WriteResponse(w, http.StatusOK, imagePruneReports)
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}
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func ExportImage(w http.ResponseWriter, r *http.Request) {
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var output string
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runtime := r.Context().Value(api.RuntimeKey).(*libpod.Runtime)
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decoder := r.Context().Value(api.DecoderKey).(*schema.Decoder)
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query := struct {
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Compress bool `schema:"compress"`
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Format string `schema:"format"`
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}{
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Format: define.OCIArchive,
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}
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if err := decoder.Decode(&query, r.URL.Query()); err != nil {
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utils.Error(w, http.StatusBadRequest,
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fmt.Errorf("failed to parse parameters for %s: %w", r.URL.String(), err))
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return
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}
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name := utils.GetName(r)
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if _, _, err := runtime.LibimageRuntime().LookupImage(name, nil); err != nil {
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utils.ImageNotFound(w, name, err)
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return
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}
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switch query.Format {
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case define.OCIArchive, define.V2s2Archive:
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tmpfile, err := os.CreateTemp("", "api.tar")
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if err != nil {
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utils.Error(w, http.StatusInternalServerError, fmt.Errorf("unable to create tempfile: %w", err))
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return
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}
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output = tmpfile.Name()
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if err := tmpfile.Close(); err != nil {
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utils.Error(w, http.StatusInternalServerError, fmt.Errorf("unable to close tempfile: %w", err))
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return
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}
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case define.OCIManifestDir, define.V2s2ManifestDir:
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tmpdir, err := os.MkdirTemp("", "save")
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if err != nil {
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utils.Error(w, http.StatusInternalServerError, fmt.Errorf("unable to create tempdir: %w", err))
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return
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}
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output = tmpdir
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default:
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utils.Error(w, http.StatusInternalServerError, fmt.Errorf("unknown format %q", query.Format))
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return
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}
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imageEngine := abi.ImageEngine{Libpod: runtime}
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saveOptions := entities.ImageSaveOptions{
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Compress: query.Compress,
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Format: query.Format,
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Output: output,
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}
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if err := imageEngine.Save(r.Context(), name, nil, saveOptions); err != nil {
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utils.Error(w, http.StatusBadRequest, err)
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return
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}
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defer os.RemoveAll(output)
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// if dir format, we need to tar it
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if query.Format == "oci-dir" || query.Format == "docker-dir" {
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rdr, err := utils2.Tar(output)
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if err != nil {
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utils.InternalServerError(w, err)
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return
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}
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defer rdr.Close()
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utils.WriteResponse(w, http.StatusOK, rdr)
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return
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}
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rdr, err := os.Open(output)
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if err != nil {
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utils.Error(w, http.StatusInternalServerError, fmt.Errorf("failed to read the exported tarfile: %w", err))
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return
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}
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defer rdr.Close()
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utils.WriteResponse(w, http.StatusOK, rdr)
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}
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func ExportImages(w http.ResponseWriter, r *http.Request) {
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var output string
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runtime := r.Context().Value(api.RuntimeKey).(*libpod.Runtime)
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decoder := r.Context().Value(api.DecoderKey).(*schema.Decoder)
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query := struct {
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Compress bool `schema:"compress"`
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Format string `schema:"format"`
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OciAcceptUncompressedLayers bool `schema:"ociAcceptUncompressedLayers"`
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References []string `schema:"references"`
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}{
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Format: define.OCIArchive,
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}
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if err := decoder.Decode(&query, r.URL.Query()); err != nil {
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utils.Error(w, http.StatusBadRequest, fmt.Errorf("failed to parse parameters for %s: %w", r.URL.String(), err))
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return
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}
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// References are mandatory!
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if len(query.References) == 0 {
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utils.Error(w, http.StatusBadRequest, errors.New("no references"))
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return
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}
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// Format is mandatory! Currently, we only support multi-image docker
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// archives.
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if len(query.References) > 1 && query.Format != define.V2s2Archive {
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utils.Error(w, http.StatusInternalServerError, fmt.Errorf("multi-image archives must use format of %s", define.V2s2Archive))
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return
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}
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switch query.Format {
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case define.V2s2Archive, define.OCIArchive:
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tmpfile, err := os.CreateTemp("", "api.tar")
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if err != nil {
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utils.Error(w, http.StatusInternalServerError, fmt.Errorf("unable to create tempfile: %w", err))
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return
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}
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output = tmpfile.Name()
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if err := tmpfile.Close(); err != nil {
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utils.Error(w, http.StatusInternalServerError, fmt.Errorf("unable to close tempfile: %w", err))
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return
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}
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case define.OCIManifestDir, define.V2s2ManifestDir:
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tmpdir, err := os.MkdirTemp("", "save")
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if err != nil {
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utils.Error(w, http.StatusInternalServerError, fmt.Errorf("unable to create tmpdir: %w", err))
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return
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}
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output = tmpdir
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default:
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utils.Error(w, http.StatusInternalServerError, fmt.Errorf("unsupported format %q", query.Format))
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return
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}
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defer os.RemoveAll(output)
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// Use the ABI image engine to share as much code as possible.
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opts := entities.ImageSaveOptions{
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Compress: query.Compress,
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Format: query.Format,
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MultiImageArchive: len(query.References) > 1,
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OciAcceptUncompressedLayers: query.OciAcceptUncompressedLayers,
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Output: output,
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}
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imageEngine := abi.ImageEngine{Libpod: runtime}
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if err := imageEngine.Save(r.Context(), query.References[0], query.References[1:], opts); err != nil {
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utils.Error(w, http.StatusBadRequest, err)
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return
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}
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// If we already produced a tar archive, let's stream that directly.
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switch query.Format {
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case define.V2s2Archive, define.OCIArchive:
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rdr, err := os.Open(output)
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if err != nil {
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utils.Error(w, http.StatusInternalServerError, fmt.Errorf("failed to read the exported tarfile: %w", err))
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return
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}
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defer rdr.Close()
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utils.WriteResponse(w, http.StatusOK, rdr)
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return
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}
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tarOptions := &archive.TarOptions{
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ChownOpts: &idtools.IDPair{
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UID: rootless.GetRootlessUID(),
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GID: rootless.GetRootlessGID(),
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},
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}
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tar, err := chrootarchive.Tar(output, tarOptions, output)
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if err != nil {
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utils.Error(w, http.StatusInternalServerError, fmt.Errorf("failed to read the exported tarfile: %w", err))
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return
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}
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utils.WriteResponse(w, http.StatusOK, tar)
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}
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func ImagesLoad(w http.ResponseWriter, r *http.Request) {
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runtime := r.Context().Value(api.RuntimeKey).(*libpod.Runtime)
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tmpfile, err := os.CreateTemp("", "libpod-images-load.tar")
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if err != nil {
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utils.Error(w, http.StatusInternalServerError, fmt.Errorf("unable to create tempfile: %w", err))
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return
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}
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defer os.Remove(tmpfile.Name())
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_, err = io.Copy(tmpfile, r.Body)
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tmpfile.Close()
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if err != nil && err != io.EOF {
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utils.Error(w, http.StatusInternalServerError, fmt.Errorf("unable to write archive to temporary file: %w", err))
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return
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}
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imageEngine := abi.ImageEngine{Libpod: runtime}
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loadOptions := entities.ImageLoadOptions{Input: tmpfile.Name()}
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loadReport, err := imageEngine.Load(r.Context(), loadOptions)
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if err != nil {
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utils.Error(w, http.StatusInternalServerError, fmt.Errorf("unable to load image: %w", err))
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return
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}
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utils.WriteResponse(w, http.StatusOK, loadReport)
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}
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func ImagesImport(w http.ResponseWriter, r *http.Request) {
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runtime := r.Context().Value(api.RuntimeKey).(*libpod.Runtime)
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decoder := r.Context().Value(api.DecoderKey).(*schema.Decoder)
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query := struct {
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Changes []string `schema:"changes"`
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Message string `schema:"message"`
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Reference string `schema:"reference"`
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URL string `schema:"URL"`
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OS string `schema:"OS"`
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Architecture string `schema:"Architecture"`
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Variant string `schema:"Variant"`
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}{
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// Add defaults here once needed.
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}
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if err := decoder.Decode(&query, r.URL.Query()); err != nil {
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utils.Error(w, http.StatusBadRequest, fmt.Errorf("failed to parse parameters for %s: %w", r.URL.String(), err))
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return
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}
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// Check if we need to load the image from a URL or from the request's body.
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source := query.URL
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if len(query.URL) == 0 {
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tmpfile, err := os.CreateTemp("", "libpod-images-import.tar")
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if err != nil {
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utils.Error(w, http.StatusInternalServerError, fmt.Errorf("unable to create tempfile: %w", err))
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return
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}
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defer os.Remove(tmpfile.Name())
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defer tmpfile.Close()
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if _, err := io.Copy(tmpfile, r.Body); err != nil && err != io.EOF {
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utils.Error(w, http.StatusInternalServerError, fmt.Errorf("unable to write archive to temporary file: %w", err))
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return
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}
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tmpfile.Close()
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source = tmpfile.Name()
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}
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imageEngine := abi.ImageEngine{Libpod: runtime}
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importOptions := entities.ImageImportOptions{
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Changes: query.Changes,
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Message: query.Message,
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Reference: query.Reference,
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OS: query.OS,
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Architecture: query.Architecture,
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Variant: query.Variant,
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Source: source,
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}
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report, err := imageEngine.Import(r.Context(), importOptions)
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if err != nil {
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utils.Error(w, http.StatusInternalServerError, fmt.Errorf("unable to import tarball: %w", err))
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return
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}
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utils.WriteResponse(w, http.StatusOK, report)
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}
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func CommitContainer(w http.ResponseWriter, r *http.Request) {
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var (
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destImage string
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mimeType string
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)
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decoder := r.Context().Value(api.DecoderKey).(*schema.Decoder)
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runtime := r.Context().Value(api.RuntimeKey).(*libpod.Runtime)
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query := struct {
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Author string `schema:"author"`
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Changes []string `schema:"changes"`
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Comment string `schema:"comment"`
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Container string `schema:"container"`
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Format string `schema:"format"`
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Pause bool `schema:"pause"`
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Squash bool `schema:"squash"`
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Repo string `schema:"repo"`
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Tag string `schema:"tag"`
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}{
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Format: "oci",
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}
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if err := decoder.Decode(&query, r.URL.Query()); err != nil {
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utils.Error(w, http.StatusBadRequest, fmt.Errorf("failed to parse parameters for %s: %w", r.URL.String(), err))
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return
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}
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rtc, err := runtime.GetConfig()
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if err != nil {
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utils.Error(w, http.StatusInternalServerError, fmt.Errorf("failed to get runtime config: %w", err))
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return
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}
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sc := runtime.SystemContext()
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tag := "latest"
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options := libpod.ContainerCommitOptions{
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Pause: true,
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}
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switch query.Format {
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case "oci":
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mimeType = buildah.OCIv1ImageManifest
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if len(query.Comment) > 0 {
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utils.InternalServerError(w, errors.New("messages are only compatible with the docker image format (-f docker)"))
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return
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}
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case "docker":
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mimeType = manifest.DockerV2Schema2MediaType
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default:
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utils.InternalServerError(w, fmt.Errorf("unrecognized image format %q", query.Format))
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return
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}
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options.CommitOptions = buildah.CommitOptions{
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SignaturePolicyPath: rtc.Engine.SignaturePolicyPath,
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ReportWriter: os.Stderr,
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SystemContext: sc,
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PreferredManifestType: mimeType,
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}
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if len(query.Tag) > 0 {
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tag = query.Tag
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}
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options.Message = query.Comment
|
|
options.Author = query.Author
|
|
options.Pause = query.Pause
|
|
options.Squash = query.Squash
|
|
options.Changes = query.Changes
|
|
ctr, err := runtime.LookupContainer(query.Container)
|
|
if err != nil {
|
|
utils.Error(w, http.StatusNotFound, err)
|
|
return
|
|
}
|
|
|
|
if len(query.Repo) > 0 {
|
|
destImage = fmt.Sprintf("%s:%s", query.Repo, tag)
|
|
}
|
|
commitImage, err := ctr.Commit(r.Context(), destImage, options)
|
|
if err != nil && !strings.Contains(err.Error(), "is not running") {
|
|
utils.Error(w, http.StatusInternalServerError, fmt.Errorf("CommitFailure: %w", err))
|
|
return
|
|
}
|
|
utils.WriteResponse(w, http.StatusOK, entities.IDResponse{ID: commitImage.ID()})
|
|
}
|
|
|
|
func UntagImage(w http.ResponseWriter, r *http.Request) {
|
|
runtime := r.Context().Value(api.RuntimeKey).(*libpod.Runtime)
|
|
|
|
tags := []string{} // Note: if empty, all tags will be removed from the image.
|
|
repo := r.Form.Get("repo")
|
|
tag := r.Form.Get("tag")
|
|
|
|
// Do the parameter dance.
|
|
switch {
|
|
// If tag is set, repo must be as well.
|
|
case len(repo) == 0 && len(tag) > 0:
|
|
utils.Error(w, http.StatusBadRequest, errors.New("repo parameter is required to tag an image"))
|
|
return
|
|
|
|
case len(repo) == 0:
|
|
break
|
|
|
|
// If repo is specified, we need to add that to the tags.
|
|
default:
|
|
if len(tag) == 0 {
|
|
// Normalize tag to "latest" if empty.
|
|
tag = "latest"
|
|
}
|
|
tags = append(tags, fmt.Sprintf("%s:%s", repo, tag))
|
|
}
|
|
|
|
// Now use the ABI implementation to prevent us from having duplicate
|
|
// code.
|
|
opts := entities.ImageUntagOptions{}
|
|
imageEngine := abi.ImageEngine{Libpod: runtime}
|
|
|
|
name := utils.GetName(r)
|
|
if err := imageEngine.Untag(r.Context(), name, tags, opts); err != nil {
|
|
if errors.Is(err, storage.ErrImageUnknown) {
|
|
utils.ImageNotFound(w, name, fmt.Errorf("failed to find image %s: %w", name, err))
|
|
} else {
|
|
utils.Error(w, http.StatusInternalServerError, err)
|
|
}
|
|
return
|
|
}
|
|
utils.WriteResponse(w, http.StatusCreated, "")
|
|
}
|
|
|
|
// ImagesBatchRemove is the endpoint for batch image removal.
|
|
func ImagesBatchRemove(w http.ResponseWriter, r *http.Request) {
|
|
runtime := r.Context().Value(api.RuntimeKey).(*libpod.Runtime)
|
|
decoder := r.Context().Value(api.DecoderKey).(*schema.Decoder)
|
|
query := struct {
|
|
All bool `schema:"all"`
|
|
Force bool `schema:"force"`
|
|
Ignore bool `schema:"ignore"`
|
|
LookupManifest bool `schema:"lookupManifest"`
|
|
Images []string `schema:"images"`
|
|
NoPrune bool `schema:"noprune"`
|
|
}{}
|
|
|
|
if err := decoder.Decode(&query, r.URL.Query()); err != nil {
|
|
utils.Error(w, http.StatusBadRequest, fmt.Errorf("failed to parse parameters for %s: %w", r.URL.String(), err))
|
|
return
|
|
}
|
|
|
|
opts := entities.ImageRemoveOptions{All: query.All, Force: query.Force, Ignore: query.Ignore, LookupManifest: query.LookupManifest, NoPrune: query.NoPrune}
|
|
imageEngine := abi.ImageEngine{Libpod: runtime}
|
|
rmReport, rmErrors := imageEngine.Remove(r.Context(), query.Images, opts)
|
|
strErrs := errorhandling.ErrorsToStrings(rmErrors)
|
|
report := handlers.LibpodImagesRemoveReport{ImageRemoveReport: *rmReport, Errors: strErrs}
|
|
utils.WriteResponse(w, http.StatusOK, report)
|
|
}
|
|
|
|
// ImagesRemove is the endpoint for removing one image.
|
|
func ImagesRemove(w http.ResponseWriter, r *http.Request) {
|
|
runtime := r.Context().Value(api.RuntimeKey).(*libpod.Runtime)
|
|
decoder := r.Context().Value(api.DecoderKey).(*schema.Decoder)
|
|
query := struct {
|
|
Force bool `schema:"force"`
|
|
LookupManifest bool `schema:"lookupManifest"`
|
|
}{
|
|
Force: false,
|
|
}
|
|
|
|
if err := decoder.Decode(&query, r.URL.Query()); err != nil {
|
|
utils.Error(w, http.StatusBadRequest, fmt.Errorf("failed to parse parameters for %s: %w", r.URL.String(), err))
|
|
return
|
|
}
|
|
|
|
opts := entities.ImageRemoveOptions{Force: query.Force, LookupManifest: query.LookupManifest}
|
|
imageEngine := abi.ImageEngine{Libpod: runtime}
|
|
rmReport, rmErrors := imageEngine.Remove(r.Context(), []string{utils.GetName(r)}, opts)
|
|
|
|
// In contrast to batch-removal, where we're only setting the exit
|
|
// code, we need to have another closer look at the errors here and set
|
|
// the appropriate http status code.
|
|
|
|
switch rmReport.ExitCode {
|
|
case 0:
|
|
report := handlers.LibpodImagesRemoveReport{ImageRemoveReport: *rmReport, Errors: []string{}}
|
|
utils.WriteResponse(w, http.StatusOK, report)
|
|
case 1:
|
|
// 404 - no such image
|
|
utils.Error(w, http.StatusNotFound, errorhandling.JoinErrors(rmErrors))
|
|
case 2:
|
|
// 409 - conflict error (in use by containers)
|
|
utils.Error(w, http.StatusConflict, errorhandling.JoinErrors(rmErrors))
|
|
default:
|
|
// 500 - internal error
|
|
utils.Error(w, http.StatusInternalServerError, errorhandling.JoinErrors(rmErrors))
|
|
}
|
|
}
|
|
|
|
func ImageScp(w http.ResponseWriter, r *http.Request) {
|
|
decoder := r.Context().Value(api.DecoderKey).(*schema.Decoder)
|
|
query := struct {
|
|
Destination string `schema:"destination"`
|
|
Quiet bool `schema:"quiet"`
|
|
}{
|
|
// This is where you can override the golang default value for one of fields
|
|
}
|
|
if err := decoder.Decode(&query, r.URL.Query()); err != nil {
|
|
utils.Error(w, http.StatusBadRequest, fmt.Errorf("failed to parse parameters for %s: %w", r.URL.String(), err))
|
|
return
|
|
}
|
|
|
|
sourceArg := utils.GetName(r)
|
|
|
|
rep, source, dest, _, err := domainUtils.ExecuteTransfer(sourceArg, query.Destination, []string{}, query.Quiet, ssh.GolangMode)
|
|
if err != nil {
|
|
utils.Error(w, http.StatusInternalServerError, err)
|
|
return
|
|
}
|
|
|
|
if source != nil || dest != nil {
|
|
utils.Error(w, http.StatusBadRequest, fmt.Errorf("cannot use the user transfer function on the remote client: %w", define.ErrInvalidArg))
|
|
return
|
|
}
|
|
|
|
utils.WriteResponse(w, http.StatusOK, &reports.ScpReport{Id: rep.Names[0]})
|
|
}
|