podman/pkg/api/handlers/libpod/pods.go

452 lines
13 KiB
Go

package libpod
import (
"encoding/json"
"fmt"
"net/http"
"strings"
"github.com/containers/libpod/cmd/podman/shared"
"github.com/containers/libpod/cmd/podman/shared/parse"
"github.com/containers/libpod/libpod"
"github.com/containers/libpod/libpod/define"
"github.com/containers/libpod/pkg/api/handlers"
"github.com/containers/libpod/pkg/api/handlers/utils"
"github.com/containers/libpod/pkg/util"
"github.com/gorilla/mux"
"github.com/gorilla/schema"
"github.com/pkg/errors"
)
func PodCreate(w http.ResponseWriter, r *http.Request) {
// 200 ok
// 500 internal
var (
runtime = r.Context().Value("runtime").(*libpod.Runtime)
options []libpod.PodCreateOption
err error
)
labels := make(map[string]string)
input := handlers.PodCreateConfig{}
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.InfraCommand) > 0 || len(input.InfraImage) > 0 {
utils.Error(w, "Something went wrong.", http.StatusInternalServerError,
errors.New("infra-command and infra-image are not implemented yet"))
return
}
// TODO long term we should break the following out of adapter and into libpod proper
// so that the cli and api can share the creation of a pod with the same options
if len(input.CGroupParent) > 0 {
options = append(options, libpod.WithPodCgroupParent(input.CGroupParent))
}
if len(input.Labels) > 0 {
if err := parse.ReadKVStrings(labels, []string{}, input.Labels); err != nil {
utils.Error(w, "Something went wrong.", http.StatusInternalServerError, err)
return
}
}
if len(labels) != 0 {
options = append(options, libpod.WithPodLabels(labels))
}
if len(input.Name) > 0 {
options = append(options, libpod.WithPodName(input.Name))
}
if len(input.Hostname) > 0 {
options = append(options, libpod.WithPodHostname(input.Hostname))
}
if input.Infra {
// TODO infra-image and infra-command are not supported in the libpod API yet. Will fix
// when implemented in libpod
options = append(options, libpod.WithInfraContainer())
sharedNamespaces := shared.DefaultKernelNamespaces
if len(input.Share) > 0 {
sharedNamespaces = input.Share
}
nsOptions, err := shared.GetNamespaceOptions(strings.Split(sharedNamespaces, ","))
if err != nil {
utils.Error(w, "Something went wrong.", http.StatusInternalServerError, err)
return
}
options = append(options, nsOptions...)
}
if len(input.Publish) > 0 {
portBindings, err := shared.CreatePortBindings(input.Publish)
if err != nil {
utils.Error(w, "Something went wrong.", http.StatusInternalServerError, err)
return
}
options = append(options, libpod.WithInfraContainerPorts(portBindings))
}
// always have containers use pod cgroups
// User Opt out is not yet supported
options = append(options, libpod.WithPodCgroups())
pod, err := runtime.NewPod(r.Context(), options...)
if err != nil {
utils.Error(w, "Something went wrong.", http.StatusInternalServerError, err)
return
}
utils.WriteResponse(w, http.StatusCreated, handlers.IDResponse{ID: pod.CgroupParent()})
}
func Pods(w http.ResponseWriter, r *http.Request) {
// 200 ok
// 500 internal
var (
runtime = r.Context().Value("runtime").(*libpod.Runtime)
podInspectData []*libpod.PodInspect
)
decoder := r.Context().Value("decoder").(*schema.Decoder)
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
}
if _, found := r.URL.Query()["filters"]; found {
utils.Error(w, "filters are not implemented yet", http.StatusInternalServerError, define.ErrNotImplemented)
return
}
pods, err := runtime.GetAllPods()
if err != nil {
utils.Error(w, "Something went wrong", http.StatusInternalServerError, err)
return
}
for _, pod := range pods {
data, err := pod.Inspect()
if err != nil {
utils.Error(w, "Something went wrong", http.StatusInternalServerError, err)
return
}
podInspectData = append(podInspectData, data)
}
utils.WriteResponse(w, http.StatusOK, podInspectData)
}
func PodInspect(w http.ResponseWriter, r *http.Request) {
runtime := r.Context().Value("runtime").(*libpod.Runtime)
name := mux.Vars(r)["name"]
pod, err := runtime.LookupPod(name)
if err != nil {
utils.PodNotFound(w, name, err)
return
}
podData, err := pod.Inspect()
if err != nil {
utils.Error(w, "Something went wrong", http.StatusInternalServerError, err)
return
}
utils.WriteResponse(w, http.StatusOK, podData)
}
func PodStop(w http.ResponseWriter, r *http.Request) {
// 200
// 304 not modified
// 404 no such
// 500 internal
var (
stopError error
runtime = r.Context().Value("runtime").(*libpod.Runtime)
decoder = r.Context().Value("decoder").(*schema.Decoder)
)
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
}
allContainersStopped := true
name := mux.Vars(r)["name"]
pod, err := runtime.LookupPod(name)
if err != nil {
utils.PodNotFound(w, name, err)
return
}
// TODO we need to implement a pod.State/Status in libpod internal so libpod api
// users dont have to run through all containers.
podContainers, err := pod.AllContainers()
if err != nil {
utils.Error(w, "Something went wrong", http.StatusInternalServerError, err)
return
}
for _, con := range podContainers {
containerState, err := con.State()
if err != nil {
utils.Error(w, "Something went wrong", http.StatusInternalServerError, err)
return
}
if containerState == define.ContainerStateRunning {
allContainersStopped = false
break
}
}
if allContainersStopped {
alreadyStopped := errors.Errorf("pod %s is already stopped", pod.ID())
utils.Error(w, "Something went wrong", http.StatusNotModified, alreadyStopped)
return
}
if query.Timeout > 0 {
_, stopError = pod.StopWithTimeout(r.Context(), false, query.Timeout)
} else {
_, stopError = pod.Stop(r.Context(), false)
}
if stopError != nil {
utils.Error(w, "Something went wrong", http.StatusInternalServerError, err)
return
}
utils.WriteResponse(w, http.StatusOK, "")
}
func PodStart(w http.ResponseWriter, r *http.Request) {
runtime := r.Context().Value("runtime").(*libpod.Runtime)
allContainersRunning := true
name := mux.Vars(r)["name"]
pod, err := runtime.LookupPod(name)
if err != nil {
utils.PodNotFound(w, name, err)
return
}
// TODO we need to implement a pod.State/Status in libpod internal so libpod api
// users dont have to run through all containers.
podContainers, err := pod.AllContainers()
if err != nil {
utils.Error(w, "Something went wrong", http.StatusInternalServerError, err)
return
}
for _, con := range podContainers {
containerState, err := con.State()
if err != nil {
utils.Error(w, "Something went wrong", http.StatusInternalServerError, err)
return
}
if containerState != define.ContainerStateRunning {
allContainersRunning = false
break
}
}
if allContainersRunning {
alreadyRunning := errors.Errorf("pod %s is already running", pod.ID())
utils.Error(w, "Something went wrong", http.StatusNotModified, alreadyRunning)
return
}
if _, err := pod.Start(r.Context()); err != nil {
utils.Error(w, "Something went wrong", http.StatusInternalServerError, err)
return
}
utils.WriteResponse(w, http.StatusOK, "")
}
func PodDelete(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 := mux.Vars(r)["name"]
pod, err := runtime.LookupPod(name)
if err != nil {
utils.PodNotFound(w, name, err)
return
}
if err := runtime.RemovePod(r.Context(), pod, true, query.force); err != nil {
utils.Error(w, "Something went wrong", http.StatusInternalServerError, err)
return
}
utils.WriteResponse(w, http.StatusNoContent, "")
}
func PodRestart(w http.ResponseWriter, r *http.Request) {
runtime := r.Context().Value("runtime").(*libpod.Runtime)
name := mux.Vars(r)["name"]
pod, err := runtime.LookupPod(name)
if err != nil {
utils.PodNotFound(w, name, err)
return
}
_, err = pod.Restart(r.Context())
if err != nil {
utils.Error(w, "Something went wrong", http.StatusInternalServerError, err)
return
}
utils.WriteResponse(w, http.StatusOK, "")
}
func PodPrune(w http.ResponseWriter, r *http.Request) {
var (
err error
pods []*libpod.Pod
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
}
if query.force {
pods, err = runtime.GetAllPods()
if err != nil {
utils.Error(w, "Something went wrong", http.StatusInternalServerError, err)
return
}
} else {
// TODO We need to make a libpod.PruneVolumes or this code will be a mess. Volumes
// already does this right. It will also help clean this code path up with less
// conditionals. We do this when we integrate with libpod again.
utils.Error(w, "not implemented", http.StatusInternalServerError, errors.New("not implemented"))
return
}
for _, p := range pods {
if err := runtime.RemovePod(r.Context(), p, true, query.force); err != nil {
utils.Error(w, "Something went wrong", http.StatusInternalServerError, err)
return
}
}
utils.WriteResponse(w, http.StatusNoContent, "")
}
func PodPause(w http.ResponseWriter, r *http.Request) {
runtime := r.Context().Value("runtime").(*libpod.Runtime)
name := mux.Vars(r)["name"]
pod, err := runtime.LookupPod(name)
if err != nil {
utils.PodNotFound(w, name, err)
return
}
_, err = pod.Pause()
if err != nil {
utils.Error(w, "Something went wrong", http.StatusInternalServerError, err)
return
}
utils.WriteResponse(w, http.StatusNoContent, "")
}
func PodUnpause(w http.ResponseWriter, r *http.Request) {
// 200 ok
// 404 no such
// 500 internal
runtime := r.Context().Value("runtime").(*libpod.Runtime)
name := mux.Vars(r)["name"]
pod, err := runtime.LookupPod(name)
if err != nil {
utils.PodNotFound(w, name, err)
return
}
_, err = pod.Unpause()
if err != nil {
utils.Error(w, "Something went wrong", http.StatusInternalServerError, err)
return
}
utils.WriteResponse(w, http.StatusOK, "")
}
func PodKill(w http.ResponseWriter, r *http.Request) {
var (
runtime = r.Context().Value("runtime").(*libpod.Runtime)
decoder = r.Context().Value("decoder").(*schema.Decoder)
signal = "SIGKILL"
)
query := struct {
signal string `schema:"signal"`
}{
// 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
}
muxVars := mux.Vars(r)
if _, found := muxVars["signal"]; found {
signal = query.signal
}
sig, err := util.ParseSignal(signal)
if err != nil {
utils.InternalServerError(w, errors.Wrapf(err, "unable to parse signal value"))
}
name := mux.Vars(r)["name"]
pod, err := runtime.LookupPod(name)
if err != nil {
utils.PodNotFound(w, name, err)
return
}
podStates, err := pod.Status()
if err != nil {
utils.Error(w, "Something went wrong.", http.StatusInternalServerError, err)
return
}
hasRunning := false
for _, s := range podStates {
if s == define.ContainerStateRunning {
hasRunning = true
break
}
}
if !hasRunning {
msg := fmt.Sprintf("Container %s is not running", pod.ID())
utils.Error(w, msg, http.StatusConflict, errors.Errorf("cannot kill a pod with no running containers: %s", pod.ID()))
return
}
_, err = pod.Kill(uint(sig))
if err != nil {
utils.Error(w, "Something went wrong", http.StatusInternalServerError, err)
return
}
utils.WriteResponse(w, http.StatusOK, "")
}
func PodExists(w http.ResponseWriter, r *http.Request) {
runtime := r.Context().Value("runtime").(*libpod.Runtime)
name := mux.Vars(r)["name"]
_, err := runtime.LookupPod(name)
if err != nil {
utils.PodNotFound(w, name, err)
return
}
utils.WriteResponse(w, http.StatusOK, "")
}