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services.go
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services.go
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package api
import (
"context"
"encoding/base64"
"encoding/json"
"fmt"
"net/http"
"time"
"github.com/go-gorp/gorp"
"github.com/gorilla/mux"
"github.com/rockbears/log"
"github.com/ovh/cds/engine/api/event"
"github.com/ovh/cds/engine/api/services"
"github.com/ovh/cds/engine/api/worker"
"github.com/ovh/cds/engine/gorpmapper"
"github.com/ovh/cds/engine/service"
"github.com/ovh/cds/sdk"
)
func (api *API) getServiceHandler() service.Handler {
return func(ctx context.Context, w http.ResponseWriter, r *http.Request) error {
vars := mux.Vars(r)
typeService := vars["type"]
if !isCDN(ctx) {
return sdk.WrapError(sdk.ErrForbidden, "only CDN can call this route")
}
var srvs []sdk.Service
var err error
if typeService == sdk.TypeHatchery {
srvs, err = services.LoadAllByType(ctx, api.mustDB(), typeService)
if err != nil {
return err
}
}
var servicesConf []sdk.ServiceConfiguration
for _, s := range srvs {
servicesConf = append(servicesConf, sdk.ServiceConfiguration{
URL: s.HTTPURL,
Name: s.Name,
ID: s.ID,
PublicKey: base64.StdEncoding.EncodeToString(s.PublicKey),
Type: s.Type,
})
}
return service.WriteJSON(w, servicesConf, http.StatusOK)
}
}
// This has to be called by the signin handler
func (api *API) serviceRegister(ctx context.Context, tx gorpmapper.SqlExecutorWithTx, data *sdk.Service) error {
consumer := getUserConsumer(ctx)
data.LastHeartbeat = time.Now()
if data.Name == "" {
return sdk.NewErrorFrom(sdk.ErrWrongRequest, "missing service name")
}
if consumer.Type != sdk.ConsumerBuiltin {
return sdk.WrapError(sdk.ErrForbidden, "cannot register service from a consumer that is not of type \"builtin\"")
}
if isWorker(ctx) {
return sdk.WrapError(sdk.ErrForbidden, "cannot register a service from a consumer that is associated with a worker")
}
// Service that are not hatcheries should be started as an admin
if data.Type != sdk.TypeHatchery && !isAdmin(ctx) {
return sdk.WrapError(sdk.ErrForbidden, "cannot register service of type %s for consumer %s", data.Type, consumer.ID)
}
// Try to find the service, and keep; else generate a new one
srv, err := services.LoadByConsumerID(ctx, tx, consumer.ID)
if err != nil && !sdk.ErrorIs(err, sdk.ErrNotFound) {
return err
}
exists := srv != nil
if exists && srv.Type != data.Type {
return sdk.WrapError(sdk.ErrForbidden, "cannot register service %s of type %s for consumer %s while existing service type is different", data.Name, data.Type, consumer.ID)
}
// Update or create the service
session := getAuthSession(ctx)
if session == nil {
return sdk.NewErrorFrom(sdk.ErrUnauthorized, "missing registered session")
}
if exists {
srv.Update(*data)
if err := services.Update(ctx, tx, srv); err != nil {
return err
}
log.Debug(ctx, "postServiceRegisterHandler> update existing service %s(%d) registered for consumer %s", srv.Name, srv.ID, *srv.ConsumerID)
} else {
srv = data
srv.ConsumerID = &consumer.ID
if err := services.Insert(ctx, tx, srv); err != nil {
return sdk.WithStack(err)
}
log.Debug(ctx, "postServiceRegisterHandler> insert new service %s(%d) registered for consumer %s", srv.Name, srv.ID, *srv.ConsumerID)
}
var strRegion string
if srv.Region != nil {
strRegion = fmt.Sprintf(" from region %q", *srv.Region)
}
log.Info(ctx, "Registering service %s(%d) %s, consumer: %s, session %s", srv.Name, srv.ID, strRegion, consumer.ID, session.ID)
if err := services.UpsertStatus(ctx, tx, *srv, session.ID); err != nil {
return sdk.WithStack(err)
}
if len(srv.PublicKey) > 0 {
log.Debug(ctx, "postServiceRegisterHandler> service %s registered with public key: %s", srv.Name, string(srv.PublicKey))
}
// For hatchery service we need to check if there are workers that are not attached to an existing hatchery
// If some worker's parent consumer match current hatchery consumer we will attach this worker to the new hatchery.
if srv.Type == sdk.TypeHatchery {
if err := worker.ReAttachAllToHatchery(ctx, tx, *srv); err != nil {
return err
}
}
srv.Uptodate = data.Version == sdk.VERSION
*data = *srv
return nil
}
func (api *API) postServiceHearbeatHandler() service.Handler {
return func(ctx context.Context, w http.ResponseWriter, r *http.Request) error {
if ok := isService(ctx); !ok {
return sdk.WithStack(sdk.ErrForbidden)
}
s, err := services.LoadByID(ctx, api.mustDB(), getUserConsumer(ctx).AuthConsumerUser.Service.ID)
if err != nil {
return err
}
var mon sdk.MonitoringStatus
if err := service.UnmarshalBody(r, &mon); err != nil {
return err
}
// Update status to warn if service version != api version
for i := range mon.Lines {
if mon.Lines[i].Component == "Version" {
if sdk.VERSION != mon.Lines[i].Value {
mon.Lines[i].Status = sdk.MonitoringStatusWarn
} else {
mon.Lines[i].Status = sdk.MonitoringStatusOK
}
break
}
}
tx, err := api.mustDB().Begin()
if err != nil {
return sdk.WithStack(err)
}
defer tx.Rollback() // nolint
s.LastHeartbeat = time.Now()
s.MonitoringStatus = mon
var sessionID string
if a := getAuthSession(ctx); a != nil {
sessionID = a.ID
}
if err := services.UpdateLastHeartbeat(ctx, tx, s); err != nil {
return err
}
if err := services.UpsertStatus(ctx, tx, *s, sessionID); err != nil {
return err
}
if err := tx.Commit(); err != nil {
return sdk.WithStack(err)
}
return nil
}
}
func (api *API) serviceAPIHeartbeat(ctx context.Context) {
tick := time.NewTicker(30 * time.Second).C
// first call
api.serviceAPIHeartbeatUpdate(ctx, api.mustDB())
for {
select {
case <-ctx.Done():
if ctx.Err() != nil {
log.Error(ctx, "Exiting serviceAPIHeartbeat: %v", ctx.Err())
return
}
case <-tick:
api.serviceAPIHeartbeatUpdate(ctx, api.mustDB())
}
}
}
func (api *API) serviceAPIHeartbeatUpdate(ctx context.Context, db *gorp.DbMap) {
tx, err := db.Begin()
if err != nil {
log.Error(ctx, "serviceAPIHeartbeat> error on repo.Begin:%v", err)
return
}
defer tx.Rollback() // nolint
var srvConfig sdk.ServiceConfig
b, _ := json.Marshal(api.Config)
sdk.JSONUnmarshal(b, &srvConfig) // nolint
srv := &sdk.Service{
CanonicalService: sdk.CanonicalService{
Name: event.GetCDSName(),
Type: sdk.TypeAPI,
Config: srvConfig,
},
MonitoringStatus: *api.Status(ctx),
LastHeartbeat: time.Now(),
}
old, err := services.LoadByName(ctx, tx, srv.Name)
if err != nil && !sdk.ErrorIs(err, sdk.ErrNotFound) {
log.Error(ctx, "serviceAPIHeartbeat> Unable to find service by name: %v", err)
return
}
exists := old != nil
if exists && old.ConsumerID != nil {
log.Error(ctx, "serviceAPIHeartbeat> Can't save an api service as one service already exists for given name %s", srv.Name)
return
}
var authSessionID string
if a := getAuthSession(ctx); a != nil {
authSessionID = a.ID
}
if exists {
srv.ID = old.ID
if err := services.Update(ctx, tx, srv); err != nil {
log.Error(ctx, "serviceAPIHeartbeat> Unable to update service %s: %v", srv.Name, err)
return
}
} else {
if err := services.Insert(ctx, tx, srv); err != nil {
log.Error(ctx, "serviceAPIHeartbeat> Unable to insert service %s: %v", srv.Name, err)
return
}
}
if err := services.UpsertStatus(ctx, tx, *srv, authSessionID); err != nil {
log.Error(ctx, "serviceAPIHeartbeat> Unable to insert or update monitoring status %s: %v", srv.Name, err)
return
}
if err := tx.Commit(); err != nil {
log.Error(ctx, "serviceAPIHeartbeat> error tx commit: %v", err)
return
}
}