105 lines
3.1 KiB
Go
105 lines
3.1 KiB
Go
package server
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import (
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"encoding/json"
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"errors"
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"fmt"
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"net/http"
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"github.com/go-zoo/bone"
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"github.com/kubernetes-incubator/cri-o/libkpod/sandbox"
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"github.com/kubernetes-incubator/cri-o/oci"
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"github.com/kubernetes-incubator/cri-o/types"
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"github.com/sirupsen/logrus"
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)
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func (s *Server) getInfo() types.CrioInfo {
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return types.CrioInfo{
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StorageDriver: s.config.Config.Storage,
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StorageRoot: s.config.Config.Root,
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CgroupDriver: s.config.Config.CgroupManager,
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}
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}
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var (
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errCtrNotFound = errors.New("container not found")
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errCtrStateNil = errors.New("container state is nil")
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errSandboxNotFound = errors.New("sandbox for container not found")
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)
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func (s *Server) getContainerInfo(id string, getContainerFunc func(id string) *oci.Container, getInfraContainerFunc func(id string) *oci.Container, getSandboxFunc func(id string) *sandbox.Sandbox) (types.ContainerInfo, error) {
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ctr := getContainerFunc(id)
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if ctr == nil {
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ctr = getInfraContainerFunc(id)
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if ctr == nil {
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return types.ContainerInfo{}, errCtrNotFound
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}
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}
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// TODO(mrunalp): should we call UpdateStatus()?
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ctrState := ctr.State()
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if ctrState == nil {
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return types.ContainerInfo{}, errCtrStateNil
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}
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sb := getSandboxFunc(ctr.Sandbox())
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if sb == nil {
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logrus.Debugf("can't find sandbox %s for container %s", ctr.Sandbox(), id)
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return types.ContainerInfo{}, errSandboxNotFound
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}
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return types.ContainerInfo{
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Name: ctr.Name(),
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Pid: ctrState.Pid,
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Image: ctr.Image(),
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CreatedTime: ctrState.Created.UnixNano(),
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Labels: ctr.Labels(),
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Annotations: ctr.Annotations(),
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Root: ctr.MountPoint(),
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LogPath: ctr.LogPath(),
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Sandbox: ctr.Sandbox(),
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IP: sb.IP(),
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}, nil
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}
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// GetInfoMux returns the mux used to serve info requests
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func (s *Server) GetInfoMux() *bone.Mux {
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mux := bone.New()
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mux.Get("/info", http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
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ci := s.getInfo()
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js, err := json.Marshal(ci)
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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w.Header().Set("Content-Type", "application/json")
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w.Write(js)
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}))
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mux.Get("/containers/:id", http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
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containerID := bone.GetValue(req, "id")
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ci, err := s.getContainerInfo(containerID, s.GetContainer, s.getInfraContainer, s.getSandbox)
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if err != nil {
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switch err {
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case errCtrNotFound:
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http.Error(w, fmt.Sprintf("can't find the container with id %s", containerID), http.StatusNotFound)
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case errCtrStateNil:
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http.Error(w, fmt.Sprintf("can't find container state for container with id %s", containerID), http.StatusInternalServerError)
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case errSandboxNotFound:
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http.Error(w, fmt.Sprintf("can't find the sandbox for container id %s", containerID), http.StatusNotFound)
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default:
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http.Error(w, err.Error(), http.StatusInternalServerError)
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}
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return
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}
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js, err := json.Marshal(ci)
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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w.Header().Set("Content-Type", "application/json")
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w.Write(js)
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}))
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return mux
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}
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