397 lines
11 KiB
Go
397 lines
11 KiB
Go
package api
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import (
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"encoding/json"
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"net/http"
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"strconv"
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"time"
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"github.com/containarr/server/internal/broker"
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grpcgateway "github.com/containarr/server/internal/grpc"
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agentv1 "github.com/containarr/server/internal/proto/agentv1"
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"github.com/containarr/server/internal/store"
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"github.com/go-chi/chi/v5"
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"github.com/google/uuid"
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"github.com/gorilla/websocket"
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)
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var upgrader = websocket.Upgrader{
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CheckOrigin: func(r *http.Request) bool { return true },
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}
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type Handler struct {
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store *store.Store
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registry *grpcgateway.Registry
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broker *broker.Broker
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}
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func NewHandler(s *store.Store, r *grpcgateway.Registry, b *broker.Broker) *Handler {
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return &Handler{store: s, registry: r, broker: b}
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}
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type agentDTO struct {
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ID string `json:"id"`
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Hostname string `json:"hostname"`
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Alias string `json:"alias"`
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IPAddress string `json:"ip_address"`
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Arch string `json:"arch"`
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OS string `json:"os"`
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Online bool `json:"online"`
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LastSeenAt time.Time `json:"last_seen_at"`
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}
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// ── Agents ────────────────────────────────────────────────────────────────────
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func (h *Handler) ListAgents(w http.ResponseWriter, r *http.Request) {
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persisted, err := h.store.ListAgents()
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if err != nil {
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http.Error(w, "store error", http.StatusInternalServerError)
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return
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}
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liveByID := map[string]*grpcgateway.AgentState{}
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for _, s := range h.registry.List() {
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liveByID[s.ID] = s
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}
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out := make([]agentDTO, 0, len(persisted))
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for _, a := range persisted {
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dto := agentDTO{
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ID: a.ID,
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Hostname: a.Hostname,
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Alias: a.Alias,
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IPAddress: a.IPAddress,
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Arch: a.Arch,
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OS: a.OS,
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}
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if live, ok := liveByID[a.ID]; ok {
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dto.Online = true
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dto.IPAddress = live.IPAddress
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dto.LastSeenAt = live.LastSeenAt
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}
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out = append(out, dto)
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}
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jsonOK(w, out)
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}
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func (h *Handler) DeleteAgent(w http.ResponseWriter, r *http.Request) {
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agentID := chi.URLParam(r, "agentID")
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if err := h.store.DeleteAgent(agentID); err != nil {
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http.Error(w, "store error", http.StatusInternalServerError)
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return
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}
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h.registry.Deregister(agentID)
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w.WriteHeader(http.StatusNoContent)
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}
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func (h *Handler) UpdateAgent(w http.ResponseWriter, r *http.Request) {
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agentID := chi.URLParam(r, "agentID")
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var body struct {
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Alias string `json:"alias"`
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}
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if err := json.NewDecoder(r.Body).Decode(&body); err != nil {
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http.Error(w, "invalid body", http.StatusBadRequest)
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return
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}
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if err := h.store.UpdateAgentAlias(agentID, body.Alias); err != nil {
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http.Error(w, "store error", http.StatusInternalServerError)
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return
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}
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h.registry.UpdateAlias(agentID, body.Alias)
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a, err := h.store.GetAgent(agentID)
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if err != nil {
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http.Error(w, "not found", http.StatusNotFound)
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return
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}
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jsonOK(w, agentDTO{
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ID: a.ID,
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Hostname: a.Hostname,
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Alias: a.Alias,
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IPAddress: a.IPAddress,
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Arch: a.Arch,
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OS: a.OS,
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Online: a.Online,
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})
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}
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// ── Containers ────────────────────────────────────────────────────────────────
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func (h *Handler) ListContainers(w http.ResponseWriter, r *http.Request) {
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type containerDTO struct {
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AgentID string `json:"agent_id"`
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Hostname string `json:"hostname"`
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Alias string `json:"alias"`
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IPAddress string `json:"ip_address"`
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Container *agentv1.ContainerInfo `json:"container"`
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}
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var out []containerDTO
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for _, agent := range h.registry.List() {
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for _, c := range agent.Containers {
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out = append(out, containerDTO{
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AgentID: agent.ID,
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Hostname: agent.Hostname,
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Alias: agent.Alias,
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IPAddress: agent.IPAddress,
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Container: c,
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})
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}
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}
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jsonOK(w, out)
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}
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func (h *Handler) ContainerAction(w http.ResponseWriter, r *http.Request) {
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agentID := chi.URLParam(r, "agentID")
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containerID := chi.URLParam(r, "containerID")
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var body struct {
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Action string `json:"action"`
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}
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if err := json.NewDecoder(r.Body).Decode(&body); err != nil {
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http.Error(w, "invalid body", http.StatusBadRequest)
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return
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}
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action, ok := map[string]agentv1.ContainerAction{
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"start": agentv1.ContainerAction_CONTAINER_ACTION_START,
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"stop": agentv1.ContainerAction_CONTAINER_ACTION_STOP,
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"restart": agentv1.ContainerAction_CONTAINER_ACTION_RESTART,
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"remove": agentv1.ContainerAction_CONTAINER_ACTION_REMOVE,
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}[body.Action]
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if !ok {
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http.Error(w, "unknown action", http.StatusBadRequest)
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return
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}
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cmdID := uuid.NewString()
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sent := h.registry.Send(agentID, &agentv1.ServerMessage{
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Payload: &agentv1.ServerMessage_ContainerCmd{
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ContainerCmd: &agentv1.ContainerCommand{
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CommandId: cmdID,
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ContainerId: containerID,
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Action: action,
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},
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},
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})
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if !sent {
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http.Error(w, "agent not connected", http.StatusServiceUnavailable)
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return
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}
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jsonOK(w, map[string]string{"command_id": cmdID})
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}
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// ── Images ────────────────────────────────────────────────────────────────────
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func (h *Handler) ListImages(w http.ResponseWriter, r *http.Request) {
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type imageDTO struct {
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AgentID string `json:"agent_id"`
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Hostname string `json:"hostname"`
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Alias string `json:"alias"`
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ID string `json:"id"`
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Tags []string `json:"tags"`
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Size int64 `json:"size"`
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CreatedAt int64 `json:"created_at"`
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}
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var out []imageDTO
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for _, agent := range h.registry.List() {
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for _, img := range agent.Images {
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out = append(out, imageDTO{
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AgentID: agent.ID,
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Hostname: agent.Hostname,
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Alias: agent.Alias,
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ID: img.GetId(),
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Tags: img.GetTags(),
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Size: img.GetSize(),
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CreatedAt: img.GetCreatedAt(),
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})
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}
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}
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jsonOK(w, out)
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}
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// ── Volumes ───────────────────────────────────────────────────────────────────
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func (h *Handler) ListVolumes(w http.ResponseWriter, r *http.Request) {
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type volumeDTO struct {
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AgentID string `json:"agent_id"`
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Hostname string `json:"hostname"`
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Alias string `json:"alias"`
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Name string `json:"name"`
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Driver string `json:"driver"`
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Mountpoint string `json:"mountpoint"`
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}
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var out []volumeDTO
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for _, agent := range h.registry.List() {
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for _, vol := range agent.Volumes {
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out = append(out, volumeDTO{
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AgentID: agent.ID,
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Hostname: agent.Hostname,
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Alias: agent.Alias,
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Name: vol.GetName(),
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Driver: vol.GetDriver(),
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Mountpoint: vol.GetMountpoint(),
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})
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}
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}
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jsonOK(w, out)
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}
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// ── Networks ──────────────────────────────────────────────────────────────────
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func (h *Handler) ListNetworks(w http.ResponseWriter, r *http.Request) {
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type networkDTO struct {
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AgentID string `json:"agent_id"`
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Hostname string `json:"hostname"`
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Alias string `json:"alias"`
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ID string `json:"id"`
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Name string `json:"name"`
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Driver string `json:"driver"`
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Scope string `json:"scope"`
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}
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var out []networkDTO
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for _, agent := range h.registry.List() {
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for _, net := range agent.Networks {
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out = append(out, networkDTO{
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AgentID: agent.ID,
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Hostname: agent.Hostname,
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Alias: agent.Alias,
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ID: net.GetId(),
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Name: net.GetName(),
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Driver: net.GetDriver(),
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Scope: net.GetScope(),
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})
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}
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}
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jsonOK(w, out)
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}
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// ── Agent token provisioning ──────────────────────────────────────────────────
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func (h *Handler) CreateAgentToken(w http.ResponseWriter, r *http.Request) {
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var body struct {
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Hostname string `json:"hostname"`
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}
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if err := json.NewDecoder(r.Body).Decode(&body); err != nil || body.Hostname == "" {
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http.Error(w, "hostname required", http.StatusBadRequest)
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return
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}
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id := uuid.NewString()
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token := uuid.NewString()
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if err := h.store.CreateAgentToken(id, token, body.Hostname); err != nil {
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http.Error(w, "store error", http.StatusInternalServerError)
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return
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}
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jsonOK(w, map[string]string{"agent_id": id, "token": token})
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}
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// ── Container log stream ──────────────────────────────────────────────────────
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func (h *Handler) LogsWS(w http.ResponseWriter, r *http.Request) {
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agentID := chi.URLParam(r, "agentID")
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containerID := chi.URLParam(r, "containerID")
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follow := r.URL.Query().Get("follow") != "false"
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tail := int32(100)
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if t := r.URL.Query().Get("tail"); t != "" {
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if n, err := strconv.Atoi(t); err == nil && n > 0 {
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tail = int32(n)
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}
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}
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conn, err := upgrader.Upgrade(w, r, nil)
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if err != nil {
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return
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}
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defer conn.Close()
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sent := h.registry.Send(agentID, &agentv1.ServerMessage{
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Payload: &agentv1.ServerMessage_StreamLogs{
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StreamLogs: &agentv1.StreamLogsCommand{
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CommandId: uuid.NewString(),
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ContainerId: containerID,
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Follow: follow,
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Tail: tail,
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},
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},
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})
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if !sent {
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conn.WriteMessage(websocket.TextMessage, []byte(`{"error":"agent not connected"}`))
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return
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}
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sub := h.broker.Subscribe()
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defer h.broker.Unsubscribe(sub)
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done := make(chan struct{})
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go func() {
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defer close(done)
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for {
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if _, _, err := conn.ReadMessage(); err != nil {
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return
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}
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}
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}()
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for {
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select {
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case <-done:
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return
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case raw, ok := <-sub:
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if !ok {
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return
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}
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var envelope struct {
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Type string `json:"type"`
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AgentID string `json:"agent_id"`
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Payload json.RawMessage `json:"payload"`
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}
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if json.Unmarshal(raw, &envelope) != nil {
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continue
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}
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if envelope.Type != "log.chunk" || envelope.AgentID != agentID {
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continue
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}
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var chunk struct {
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ContainerID string `json:"container_id"`
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Stream string `json:"stream"`
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Data []byte `json:"data"`
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}
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if json.Unmarshal(envelope.Payload, &chunk) != nil {
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continue
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}
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if chunk.ContainerID != containerID {
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continue
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}
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msg, _ := json.Marshal(map[string]string{
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"stream": chunk.Stream,
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"line": string(chunk.Data),
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})
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if err := conn.WriteMessage(websocket.TextMessage, msg); err != nil {
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return
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}
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}
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}
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}
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// ── WebSocket event stream ────────────────────────────────────────────────────
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func (h *Handler) EventsWS(w http.ResponseWriter, r *http.Request) {
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conn, err := upgrader.Upgrade(w, r, nil)
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if err != nil {
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return
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}
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defer conn.Close()
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sub := h.broker.Subscribe()
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defer h.broker.Unsubscribe(sub)
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for data := range sub {
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if err := conn.WriteMessage(websocket.TextMessage, data); err != nil {
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return
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}
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}
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}
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func jsonOK(w http.ResponseWriter, v any) {
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w.Header().Set("Content-Type", "application/json")
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json.NewEncoder(w).Encode(v)
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}
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