func (self *version1_2) HandleRequest(requestType string, request []string, m manager.Manager, w http.ResponseWriter, r *http.Request) error {
switch requestType {
case dockerApi:
glog.V(4).Infof("Api - Docker(%v)", request)
// Get the query request.
query, err := getContainerInfoRequest(r.Body)
if err != nil {
return err
}
var containers map[string]info.ContainerInfo
// map requests for "docker/" to "docker"
if len(request) == 1 && len(request[0]) == 0 {
request = request[:0]
}
switch len(request) {
case 0:
// Get all Docker containers.
containers, err = m.AllDockerContainers(query)
if err != nil {
return fmt.Errorf("failed to get all Docker containers with error: %v", err)
}
case 1:
// Get one Docker container.
var cont info.ContainerInfo
cont, err = m.DockerContainer(request[0], query)
if err != nil {
return fmt.Errorf("failed to get Docker container %q with error: %v", request[0], err)
}
containers = map[string]info.ContainerInfo{
cont.Name: cont,
}
default:
return fmt.Errorf("unknown request for Docker container %v", request)
}
// Only output the containers as JSON.
err = writeResult(containers, w)
if err != nil {
return err
}
return nil
default:
return self.baseVersion.HandleRequest(requestType, request, m, w, r)
}
}
func serveDockerPage(m manager.Manager, w http.ResponseWriter, u *url.URL) error {
start := time.Now()
// The container name is the path after the handler
containerName := u.Path[len(DockerPage):]
rootDir := getRootDir(u.Path)
var data *pageData
if containerName == "" {
// Get the containers.
reqParams := info.ContainerInfoRequest{
NumStats: 0,
}
conts, err := m.AllDockerContainers(&reqParams)
if err != nil {
return fmt.Errorf("failed to get container %q with error: %v", containerName, err)
}
subcontainers := make([]link, 0, len(conts))
for _, cont := range conts {
subcontainers = append(subcontainers, link{
Text: getContainerDisplayName(cont.ContainerReference),
Link: path.Join("/docker", docker.ContainerNameToDockerId(cont.ContainerReference.Name)),
})
}
// Get Docker status
status, err := m.DockerInfo()
if err != nil {
return err
}
dockerStatus, driverStatus := toStatusKV(status)
// Get Docker Images
images, err := m.DockerImages()
if err != nil {
return err
}
dockerContainersText := "Docker Containers"
data = &pageData{
DisplayName: dockerContainersText,
ParentContainers: []link{
{
Text: dockerContainersText,
Link: DockerPage,
}},
Subcontainers: subcontainers,
Root: rootDir,
DockerStatus: dockerStatus,
DockerDriverStatus: driverStatus,
DockerImages: images,
}
} else {
// Get the container.
reqParams := info.ContainerInfoRequest{
NumStats: 60,
}
cont, err := m.DockerContainer(containerName, &reqParams)
if err != nil {
return fmt.Errorf("failed to get container %q with error: %v", containerName, err)
}
displayName := getContainerDisplayName(cont.ContainerReference)
// Make a list of the parent containers and their links
var parentContainers []link
parentContainers = append(parentContainers, link{
Text: "Docker containers",
Link: DockerPage,
})
parentContainers = append(parentContainers, link{
Text: displayName,
Link: path.Join(DockerPage, docker.ContainerNameToDockerId(cont.Name)),
})
// Get the MachineInfo
machineInfo, err := m.GetMachineInfo()
if err != nil {
return err
}
data = &pageData{
DisplayName: displayName,
ContainerName: cont.Name,
ParentContainers: parentContainers,
Spec: cont.Spec,
Stats: cont.Stats,
MachineInfo: machineInfo,
ResourcesAvailable: cont.Spec.HasCpu || cont.Spec.HasMemory || cont.Spec.HasNetwork,
CpuAvailable: cont.Spec.HasCpu,
MemoryAvailable: cont.Spec.HasMemory,
NetworkAvailable: cont.Spec.HasNetwork,
FsAvailable: cont.Spec.HasFilesystem,
Root: rootDir,
}
}
err := pageTemplate.Execute(w, data)
if err != nil {
glog.Errorf("Failed to apply template: %s", err)
}
glog.V(5).Infof("Request took %s", time.Since(start))
return nil
}
func handleRequest(m manager.Manager, w http.ResponseWriter, r *http.Request) error {
start := time.Now()
defer glog.V(2).Infof("Request took %s", time.Since(start))
request := r.URL.Path
requestElements := strings.Split(r.URL.Path, "/")
// Verify that we have all the elements we expect:
// <empty>/api/<version>/<request type>[/<args...>]
// [0] [1] [2] [3] [4...]
if len(requestElements) < 4 {
return fmt.Errorf("incomplete API request %q", request)
}
// Get all the element parts.
emptyElement := requestElements[0]
apiElement := requestElements[1]
version := requestElements[2]
requestType := requestElements[3]
requestArgs := []string{}
if len(requestElements) > 4 {
requestArgs = requestElements[4:]
}
// The container name is the path after the requestType.
containerName := path.Join("/", strings.Join(requestArgs, "/"))
// Check elements.
if len(emptyElement) != 0 {
return fmt.Errorf("unexpected API request format %q", request)
}
if apiElement != "api" {
return fmt.Errorf("invalid API request format %q", request)
}
if _, ok := supportedApiVersions[version]; !ok {
return fmt.Errorf("unsupported API version %q", version)
}
switch {
case requestType == machineApi:
glog.V(2).Infof("Api - Machine")
// Get the MachineInfo
machineInfo, err := m.GetMachineInfo()
if err != nil {
return err
}
err = writeResult(machineInfo, w)
if err != nil {
return err
}
case requestType == containersApi:
glog.V(2).Infof("Api - Container(%s)", containerName)
// Get the query request.
query, err := getContainerInfoRequest(r.Body)
if err != nil {
return err
}
// Get the container.
cont, err := m.GetContainerInfo(containerName, query)
if err != nil {
return fmt.Errorf("failed to get container %q with error: %s", containerName, err)
}
// Only output the container as JSON.
err = writeResult(cont, w)
if err != nil {
return err
}
case requestType == subcontainersApi:
if version == version1_0 {
return fmt.Errorf("request type of %q not supported in API version %q", requestType, version)
}
glog.V(2).Infof("Api - Subcontainers(%s)", containerName)
// Get the query request.
query, err := getContainerInfoRequest(r.Body)
if err != nil {
return err
}
// Get the subcontainers.
containers, err := m.SubcontainersInfo(containerName, query)
if err != nil {
return fmt.Errorf("failed to get subcontainers for container %q with error: %s", containerName, err)
}
// Only output the containers as JSON.
err = writeResult(containers, w)
if err != nil {
return err
}
case requestType == dockerApi:
if version == version1_0 || version == version1_1 {
return fmt.Errorf("request type of %q not supported in API version %q", requestType, version)
}
containerName = strings.TrimLeft(containerName, "/")
glog.V(2).Infof("Api - Docker(%s)", containerName)
// Get the query request.
query, err := getContainerInfoRequest(r.Body)
if err != nil {
return err
}
var containers map[string]info.ContainerInfo
if containerName == "" {
// Get all Docker containers.
containers, err = m.AllDockerContainers(query)
if err != nil {
return fmt.Errorf("failed to get all Docker containers with error: %v", err)
}
} else {
// Get one Docker container.
var cont info.ContainerInfo
cont, err = m.DockerContainer(containerName, query)
if err != nil {
return fmt.Errorf("failed to get Docker container %q with error: %v", containerName, err)
}
containers = map[string]info.ContainerInfo{
cont.Name: cont,
}
}
// Only output the containers as JSON.
err = writeResult(containers, w)
if err != nil {
return err
}
default:
return fmt.Errorf("unknown API request type %q", requestType)
}
return nil
}
