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package handlers
import (
"fmt"
"github.com/docker/docker/api/types"
"net/http"
"github.com/containers/libpod/libpod"
"github.com/containers/libpod/libpod/define"
"github.com/containers/libpod/pkg/api/handlers/utils"
"github.com/gorilla/schema"
"github.com/pkg/errors"
)
func StopContainer(w http.ResponseWriter, r *http.Request) {
runtime := r.Context().Value("runtime").(*libpod.Runtime)
decoder := r.Context().Value("decoder").(*schema.Decoder)
// /{version}/containers/(name)/stop
query := struct {
Timeout int `schema:"t"`
}{
// 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)
con, err := runtime.LookupContainer(name)
if err != nil {
utils.ContainerNotFound(w, name, err)
return
}
state, err := con.State()
if err != nil {
utils.InternalServerError(w, errors.Wrapf(err, "unable to get state for Container %s", name))
return
}
// If the Container is stopped already, send a 304
if state == define.ContainerStateStopped || state == define.ContainerStateExited {
utils.WriteResponse(w, http.StatusNotModified, "")
return
}
var stopError error
if query.Timeout > 0 {
stopError = con.StopWithTimeout(uint(query.Timeout))
} else {
stopError = con.Stop()
}
if stopError != nil {
utils.InternalServerError(w, errors.Wrapf(stopError, "failed to stop %s", name))
return
}
// Success
utils.WriteResponse(w, http.StatusNoContent, "")
}
func UnpauseContainer(w http.ResponseWriter, r *http.Request) {
runtime := r.Context().Value("runtime").(*libpod.Runtime)
// /{version}/containers/(name)/unpause
name := utils.GetName(r)
con, err := runtime.LookupContainer(name)
if err != nil {
utils.ContainerNotFound(w, name, err)
return
}
// the api does not error if the Container is already paused, so just into it
if err := con.Unpause(); err != nil {
utils.InternalServerError(w, err)
return
}
// Success
utils.WriteResponse(w, http.StatusNoContent, "")
}
func PauseContainer(w http.ResponseWriter, r *http.Request) {
runtime := r.Context().Value("runtime").(*libpod.Runtime)
// /{version}/containers/(name)/pause
name := utils.GetName(r)
con, err := runtime.LookupContainer(name)
if err != nil {
utils.ContainerNotFound(w, name, err)
return
}
// the api does not error if the Container is already paused, so just into it
if err := con.Pause(); err != nil {
utils.InternalServerError(w, err)
return
}
// Success
utils.WriteResponse(w, http.StatusNoContent, "")
}
func StartContainer(w http.ResponseWriter, r *http.Request) {
decoder := r.Context().Value("decoder").(*schema.Decoder)
query := struct {
DetachKeys string `schema:"detachKeys"`
}{
// Override golang default values for types
}
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
}
if len(query.DetachKeys) > 0 {
// TODO - start does not support adding detach keys
utils.Error(w, "Something went wrong", http.StatusBadRequest, errors.New("the detachKeys parameter is not supported yet"))
return
}
runtime := r.Context().Value("runtime").(*libpod.Runtime)
name := utils.GetName(r)
con, err := runtime.LookupContainer(name)
if err != nil {
utils.ContainerNotFound(w, name, err)
return
}
state, err := con.State()
if err != nil {
utils.InternalServerError(w, err)
return
}
if state == define.ContainerStateRunning {
utils.WriteResponse(w, http.StatusNotModified, "")
return
}
if err := con.Start(r.Context(), false); err != nil {
utils.InternalServerError(w, err)
return
}
utils.WriteResponse(w, http.StatusNoContent, "")
}
func RestartContainer(w http.ResponseWriter, r *http.Request) {
runtime := r.Context().Value("runtime").(*libpod.Runtime)
decoder := r.Context().Value("decoder").(*schema.Decoder)
// /{version}/containers/(name)/restart
query := struct {
Timeout int `schema:"t"`
}{
// Override golang default values for types
}
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
}
name := utils.GetName(r)
con, err := runtime.LookupContainer(name)
if err != nil {
utils.ContainerNotFound(w, name, err)
return
}
state, err := con.State()
if err != nil {
utils.InternalServerError(w, err)
return
}
// FIXME: This is not in the swagger.yml...
// If the Container is stopped already, send a 409
if state == define.ContainerStateStopped || state == define.ContainerStateExited {
msg := fmt.Sprintf("Container %s is not running", name)
utils.Error(w, msg, http.StatusConflict, errors.New(msg))
return
}
timeout := con.StopTimeout()
if _, found := r.URL.Query()["t"]; found {
timeout = uint(query.Timeout)
}
if err := con.RestartWithTimeout(r.Context(), timeout); err != nil {
utils.InternalServerError(w, err)
return
}
// Success
utils.WriteResponse(w, http.StatusNoContent, "")
}
func PruneContainers(w http.ResponseWriter, r *http.Request) {
var (
delContainers []string
space int64
)
runtime := r.Context().Value("runtime").(*libpod.Runtime)
decoder := r.Context().Value("decoder").(*schema.Decoder)
query := struct {
Filters map[string][]string `schema:"filter"`
}{}
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
}
filterFuncs, err := utils.GenerateFilterFuncsFromMap(runtime, query.Filters)
if err != nil {
utils.InternalServerError(w, err)
return
}
prunedContainers, pruneErrors, err := runtime.PruneContainers(filterFuncs)
if err != nil {
utils.InternalServerError(w, err)
return
}
// Libpod response differs
if utils.IsLibpodRequest(r) {
var response []LibpodContainersPruneReport
for ctrID, size := range prunedContainers {
response = append(response, LibpodContainersPruneReport{ID: ctrID, SpaceReclaimed: size})
}
for ctrID, err := range pruneErrors {
response = append(response, LibpodContainersPruneReport{ID: ctrID, PruneError: err.Error()})
}
utils.WriteResponse(w, http.StatusOK, response)
return
}
for ctrID, size := range prunedContainers {
if pruneErrors[ctrID] == nil {
space += size
delContainers = append(delContainers, ctrID)
}
}
report := types.ContainersPruneReport{
ContainersDeleted: delContainers,
SpaceReclaimed: uint64(space),
}
utils.WriteResponse(w, http.StatusOK, report)
}
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