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instances_put.go
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/
instances_put.go
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package main
import (
"context"
"encoding/json"
"fmt"
"net/http"
"strings"
"sync"
internalInstance "github.com/lxc/incus/internal/instance"
"github.com/lxc/incus/internal/server/auth"
"github.com/lxc/incus/internal/server/cluster"
"github.com/lxc/incus/internal/server/db"
"github.com/lxc/incus/internal/server/instance"
"github.com/lxc/incus/internal/server/instance/instancetype"
"github.com/lxc/incus/internal/server/operations"
"github.com/lxc/incus/internal/server/request"
"github.com/lxc/incus/internal/server/response"
"github.com/lxc/incus/internal/version"
"github.com/lxc/incus/shared/api"
)
func coalesceErrors(local bool, errors map[string]error) error {
if len(errors) == 0 {
return nil
}
var errorMsg string
if local {
errorMsg += "The following instances failed to update state:\n"
}
for instName, err := range errors {
if local {
errorMsg += fmt.Sprintf(" - Instance: %s: %v\n", instName, err)
} else {
errorMsg += strings.TrimSpace(fmt.Sprintf("%v\n", err))
}
}
return fmt.Errorf("%s", errorMsg)
}
// swagger:operation PUT /1.0/instances instances instances_put
//
// Bulk instance state update
//
// Changes the running state of all instances.
//
// ---
// consumes:
// - application/json
// produces:
// - application/json
// parameters:
// - in: query
// name: project
// description: Project name
// type: string
// example: default
// - in: body
// name: state
// description: State
// required: false
// schema:
// $ref: "#/definitions/InstancesPut"
// responses:
// "202":
// $ref: "#/responses/Operation"
// "400":
// $ref: "#/responses/BadRequest"
// "403":
// $ref: "#/responses/Forbidden"
// "500":
// $ref: "#/responses/InternalServerError"
func instancesPut(d *Daemon, r *http.Request) response.Response {
projectName := request.ProjectParam(r)
// Don't mess with instances while in setup mode.
<-d.waitReady.Done()
s := d.State()
c, err := instance.LoadNodeAll(s, instancetype.Any)
if err != nil {
return response.BadRequest(err)
}
req := api.InstancesPut{}
req.State = &api.InstanceStatePut{}
req.State.Timeout = -1
err = json.NewDecoder(r.Body).Decode(&req)
if err != nil {
return response.BadRequest(err)
}
action := internalInstance.InstanceAction(req.State.Action)
userHasPermission, err := s.Authorizer.GetPermissionChecker(r.Context(), r, auth.EntitlementCanUpdateState, auth.ObjectTypeInstance)
if err != nil {
return response.SmartError(err)
}
var names []string
var instances []instance.Instance
for _, inst := range c {
if inst.Project().Name != projectName {
continue
}
// Only allow changing the state of instances the user has permission for.
if !userHasPermission(auth.ObjectInstance(inst.Project().Name, inst.Name())) {
continue
}
switch action {
case internalInstance.Freeze:
if !inst.IsRunning() {
continue
}
case internalInstance.Restart:
if !inst.IsRunning() {
continue
}
case internalInstance.Start:
if inst.IsRunning() {
continue
}
case internalInstance.Stop:
if !inst.IsRunning() {
continue
}
case internalInstance.Unfreeze:
if !inst.IsFrozen() {
continue
}
}
instances = append(instances, inst)
names = append(names, inst.Name())
}
// Determine operation type.
opType, err := instanceActionToOptype(req.State.Action)
if err != nil {
return response.BadRequest(err)
}
// Batch the changes.
do := func(op *operations.Operation) error {
localAction := func(local bool) error {
failures := map[string]error{}
failuresLock := sync.Mutex{}
wgAction := sync.WaitGroup{}
for _, inst := range instances {
wgAction.Add(1)
go func(inst instance.Instance) {
defer wgAction.Done()
inst.SetOperation(op)
err := doInstanceStatePut(inst, *req.State)
if err != nil {
failuresLock.Lock()
failures[inst.Name()] = err
failuresLock.Unlock()
}
}(inst)
}
wgAction.Wait()
return coalesceErrors(local, failures)
}
// Only return the local data if asked by cluster member.
if isClusterNotification(r) {
return localAction(false)
}
// If not clustered, return the local data.
if !s.ServerClustered {
return localAction(true)
}
// Get all members in cluster.
var members []db.NodeInfo
err = s.DB.Cluster.Transaction(context.TODO(), func(ctx context.Context, tx *db.ClusterTx) error {
var err error
members, err = tx.GetNodes(ctx)
if err != nil {
return fmt.Errorf("Failed getting cluster members: %w", err)
}
return nil
})
if err != nil {
return err
}
// Get local cluster address.
localClusterAddress := s.LocalConfig.ClusterAddress()
// Record the results.
failures := map[string]error{}
failuresLock := sync.Mutex{}
wgAction := sync.WaitGroup{}
networkCert := s.Endpoints.NetworkCert()
for _, member := range members {
wgAction.Add(1)
go func(member db.NodeInfo) {
defer wgAction.Done()
// Special handling for the local member.
if member.Address == localClusterAddress {
err := localAction(false)
if err != nil {
failuresLock.Lock()
failures[member.Name] = err
failuresLock.Unlock()
}
return
}
// Connect to the remote server.
client, err := cluster.Connect(member.Address, networkCert, s.ServerCert(), r, true)
if err != nil {
failuresLock.Lock()
failures[member.Name] = err
failuresLock.Unlock()
return
}
client = client.UseProject(projectName)
// Perform the action.
op, err := client.UpdateInstances(req, "")
if err != nil {
failuresLock.Lock()
failures[member.Name] = err
failuresLock.Unlock()
return
}
err = op.Wait()
if err != nil {
failuresLock.Lock()
failures[member.Name] = err
failuresLock.Unlock()
return
}
}(member)
}
wgAction.Wait()
return coalesceErrors(true, failures)
}
resources := map[string][]api.URL{}
for _, instName := range names {
resources["instances"] = append(resources["instances"], *api.NewURL().Path(version.APIVersion, "instances", instName))
}
op, err := operations.OperationCreate(s, projectName, operations.OperationClassTask, opType, resources, nil, do, nil, nil, r)
if err != nil {
return response.InternalError(err)
}
return operations.OperationResponse(op)
}