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package compat
import (
"encoding/json"
"net/http"
"time"
"github.com/containers/libpod/libpod"
"github.com/containers/libpod/libpod/define"
"github.com/containers/libpod/pkg/api/handlers/utils"
"github.com/containers/libpod/pkg/domain/filters"
"github.com/containers/libpod/pkg/domain/infra/abi/parse"
docker_api_types "github.com/docker/docker/api/types"
docker_api_types_volume "github.com/docker/docker/api/types/volume"
"github.com/gorilla/schema"
"github.com/pkg/errors"
)
func ListVolumes(w http.ResponseWriter, r *http.Request) {
var (
decoder = r.Context().Value("decoder").(*schema.Decoder)
runtime = r.Context().Value("runtime").(*libpod.Runtime)
)
query := struct {
Filters map[string][]string `schema:"filters"`
}{
// override any golang type defaults
}
if err := decoder.Decode(&query, r.URL.Query()); err != nil {
utils.Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest,
errors.Wrapf(err, "Failed to parse parameters for %s", r.URL.String()))
return
}
// Reject any libpod specific filters since `GenerateVolumeFilters()` will
// happily parse them for us.
for filter := range query.Filters {
if filter == "opts" {
utils.Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest,
errors.Errorf("unsupported libpod filters passed to docker endpoint"))
return
}
}
volumeFilters, err := filters.GenerateVolumeFilters(query.Filters)
if err != nil {
utils.InternalServerError(w, err)
return
}
vols, err := runtime.Volumes(volumeFilters...)
if err != nil {
utils.InternalServerError(w, err)
return
}
volumeConfigs := make([]*docker_api_types.Volume, 0, len(vols))
for _, v := range vols {
config := docker_api_types.Volume{
Name: v.Name(),
Driver: v.Driver(),
Mountpoint: v.MountPoint(),
CreatedAt: v.CreatedTime().Format(time.RFC3339),
Labels: v.Labels(),
Scope: v.Scope(),
Options: v.Options(),
}
volumeConfigs = append(volumeConfigs, &config)
}
response := docker_api_types_volume.VolumeListOKBody{
Volumes: volumeConfigs,
Warnings: []string{},
}
utils.WriteResponse(w, http.StatusOK, response)
}
func CreateVolume(w http.ResponseWriter, r *http.Request) {
var (
volumeOptions []libpod.VolumeCreateOption
runtime = r.Context().Value("runtime").(*libpod.Runtime)
decoder = r.Context().Value("decoder").(*schema.Decoder)
)
/* No query string data*/
query := struct{}{}
if err := decoder.Decode(&query, r.URL.Query()); err != nil {
utils.Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest,
errors.Wrapf(err, "Failed to parse parameters for %s", r.URL.String()))
return
}
// decode params from body
input := docker_api_types_volume.VolumeCreateBody{}
if err := json.NewDecoder(r.Body).Decode(&input); err != nil {
utils.Error(w, "Something went wrong.", http.StatusInternalServerError, errors.Wrap(err, "Decode()"))
return
}
if len(input.Name) > 0 {
volumeOptions = append(volumeOptions, libpod.WithVolumeName(input.Name))
}
if len(input.Driver) > 0 {
volumeOptions = append(volumeOptions, libpod.WithVolumeDriver(input.Driver))
}
if len(input.Labels) > 0 {
volumeOptions = append(volumeOptions, libpod.WithVolumeLabels(input.Labels))
}
if len(input.DriverOpts) > 0 {
parsedOptions, err := parse.VolumeOptions(input.DriverOpts)
if err != nil {
utils.InternalServerError(w, err)
return
}
volumeOptions = append(volumeOptions, parsedOptions...)
}
vol, err := runtime.NewVolume(r.Context(), volumeOptions...)
if err != nil {
utils.InternalServerError(w, err)
return
}
config, err := vol.Config()
if err != nil {
utils.InternalServerError(w, err)
return
}
volResponse := docker_api_types.Volume{
Name: config.Name,
Driver: config.Driver,
Mountpoint: config.MountPoint,
CreatedAt: config.CreatedTime.Format(time.RFC3339),
Labels: config.Labels,
Options: config.Options,
Scope: "local",
// ^^ We don't have volume scoping so we'll just claim it's "local"
// like we do in the `libpod.Volume.Scope()` method
//
// TODO: We don't include the volume `Status` or `UsageData`, but both
// are nullable in the Docker engine API spec so that's fine for now
}
utils.WriteResponse(w, http.StatusCreated, volResponse)
}
func InspectVolume(w http.ResponseWriter, r *http.Request) {
var (
runtime = r.Context().Value("runtime").(*libpod.Runtime)
)
name := utils.GetName(r)
vol, err := runtime.GetVolume(name)
if err != nil {
utils.VolumeNotFound(w, name, err)
return
}
volResponse := docker_api_types.Volume{
Name: vol.Name(),
Driver: vol.Driver(),
Mountpoint: vol.MountPoint(),
CreatedAt: vol.CreatedTime().Format(time.RFC3339),
Labels: vol.Labels(),
Options: vol.Options(),
Scope: vol.Scope(),
// TODO: As above, we don't return `Status` or `UsageData` yet
}
utils.WriteResponse(w, http.StatusOK, volResponse)
}
func RemoveVolume(w http.ResponseWriter, r *http.Request) {
var (
runtime = r.Context().Value("runtime").(*libpod.Runtime)
decoder = r.Context().Value("decoder").(*schema.Decoder)
)
query := struct {
Force bool `schema:"force"`
}{
// override any golang type defaults
}
if err := decoder.Decode(&query, r.URL.Query()); err != nil {
utils.Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest,
errors.Wrapf(err, "Failed to parse parameters for %s", r.URL.String()))
return
}
name := utils.GetName(r)
vol, err := runtime.LookupVolume(name)
if err != nil {
utils.VolumeNotFound(w, name, err)
return
}
if err := runtime.RemoveVolume(r.Context(), vol, query.Force); err != nil {
if errors.Cause(err) == define.ErrVolumeBeingUsed {
utils.Error(w, "volumes being used", http.StatusConflict, err)
return
}
utils.InternalServerError(w, err)
return
}
utils.WriteResponse(w, http.StatusNoContent, "")
}
func PruneVolumes(w http.ResponseWriter, r *http.Request) {
var (
runtime = r.Context().Value("runtime").(*libpod.Runtime)
decoder = r.Context().Value("decoder").(*schema.Decoder)
)
// For some reason the prune filters are query parameters even though this
// is a POST endpoint
query := struct {
Filters map[string][]string `schema:"filters"`
}{
// override any golang type defaults
}
if err := decoder.Decode(&query, r.URL.Query()); err != nil {
utils.Error(w, "Something went wrong.", http.StatusBadRequest, errors.Wrapf(err, "Failed to parse parameters for %s", r.URL.String()))
return
}
// TODO: We have no ability to pass pruning filters to `PruneVolumes()` so
// we'll explicitly reject the request if we see any
if len(query.Filters) > 0 {
utils.InternalServerError(w, errors.New("filters for pruning volumes is not implemented"))
return
}
pruned, err := runtime.PruneVolumes(r.Context())
if err != nil {
utils.InternalServerError(w, err)
return
}
prunedIds := make([]string, 0, len(pruned))
for k := range pruned {
// XXX: This drops any pruning per-volume error messages on the floor
prunedIds = append(prunedIds, k)
}
pruneResponse := docker_api_types.VolumesPruneReport{
VolumesDeleted: prunedIds,
// TODO: We don't have any insight into how much space was reclaimed
// from `PruneVolumes()` but it's not nullable
SpaceReclaimed: 0,
}
utils.WriteResponse(w, http.StatusOK, pruneResponse)
}
|
