func (cmd *ATCCommand) constructDB(logger lager.Logger) (*db.SQLDB, db.PipelineDBFactory, error) {
dbConn, err := migrations.LockDBAndMigrate(logger.Session("db.migrations"), "postgres", cmd.PostgresDataSource)
if err != nil {
return nil, nil, fmt.Errorf("failed to migrate database: %s", err)
}
listener := pq.NewListener(cmd.PostgresDataSource, time.Second, time.Minute, nil)
bus := db.NewNotificationsBus(listener, dbConn)
explainDBConn := db.Explain(logger, dbConn, clock.NewClock(), 500*time.Millisecond)
sqlDB := db.NewSQL(logger.Session("db"), explainDBConn, bus)
pipelineDBFactory := db.NewPipelineDBFactory(logger.Session("db"), explainDBConn, bus, sqlDB)
return sqlDB, pipelineDBFactory, err
}
func main() {
flag.Parse()
if !*dev && (*httpUsername == "" || (*httpHashedPassword == "" && *httpPassword == "")) {
fatal(errors.New("must specify -httpUsername and -httpPassword or -httpHashedPassword or turn on dev mode"))
}
if _, err := os.Stat(*templatesDir); err != nil {
fatal(errors.New("directory specified via -templates does not exist"))
}
if _, err := os.Stat(*publicDir); err != nil {
fatal(errors.New("directory specified via -public does not exist"))
}
logger := lager.NewLogger("atc")
logLevel := lager.INFO
if *dev {
logLevel = lager.DEBUG
}
sink := lager.NewReconfigurableSink(lager.NewWriterSink(os.Stdout, lager.DEBUG), logLevel)
logger.RegisterSink(sink)
var err error
var dbConn Db.Conn
for {
dbConn, err = migration.Open(*sqlDriver, *sqlDataSource, migrations.Migrations)
if err != nil {
if strings.Contains(err.Error(), " dial ") {
logger.Error("failed-to-open-db", err)
time.Sleep(5 * time.Second)
continue
}
fatal(err)
}
break
}
dbConn = Db.Explain(logger, dbConn, 500*time.Millisecond)
listener := pq.NewListener(*sqlDataSource, time.Second, time.Minute, nil)
bus := Db.NewNotificationsBus(listener)
db := Db.NewSQL(logger.Session("db"), dbConn, bus)
pipelineDBFactory := Db.NewPipelineDBFactory(logger.Session("db"), dbConn, bus, db)
var configDB Db.ConfigDB
configDB = Db.PlanConvertingConfigDB{db}
var resourceTypesNG []atc.WorkerResourceType
err = json.Unmarshal([]byte(*resourceTypes), &resourceTypesNG)
if err != nil {
logger.Fatal("invalid-resource-types", err)
}
var workerClient worker.Client
if *gardenAddr != "" {
workerClient = worker.NewGardenWorker(
gclient.New(gconn.NewWithLogger(
*gardenNetwork,
*gardenAddr,
logger.Session("garden-connection"),
)),
clock.NewClock(),
-1,
resourceTypesNG,
"linux",
[]string{},
)
} else {
workerClient = worker.NewPool(worker.NewDBWorkerProvider(db, logger))
}
resourceTracker := resource.NewTracker(workerClient)
gardenFactory := exec.NewGardenFactory(workerClient, resourceTracker, func() string {
guid, err := uuid.NewV4()
if err != nil {
panic("not enough entropy to generate guid: " + err.Error())
}
return guid.String()
})
execEngine := engine.NewExecEngine(gardenFactory, engine.NewBuildDelegateFactory(db), db)
engine := engine.NewDBEngine(engine.Engines{execEngine}, db, db)
var webValidator auth.Validator
if *httpUsername != "" && *httpHashedPassword != "" {
webValidator = auth.BasicAuthHashedValidator{
Username: *httpUsername,
HashedPassword: *httpHashedPassword,
}
} else if *httpUsername != "" && *httpPassword != "" {
webValidator = auth.BasicAuthValidator{
Username: *httpUsername,
Password: *httpPassword,
}
} else {
webValidator = auth.NoopValidator{}
}
callbacksURL, err := url.Parse(*callbacksURLString)
if err != nil {
fatal(err)
}
drain := make(chan struct{})
apiHandler, err := api.NewHandler(
logger, // logger lager.Logger,
webValidator, // validator auth.Validator,
pipelineDBFactory, // pipelineDBFactory db.PipelineDBFactory,
configDB, // configDB db.ConfigDB,
db, // buildsDB buildserver.BuildsDB,
db, // workerDB workerserver.WorkerDB,
db, // pipeDB pipes.PipeDB,
db, // pipelinesDB db.PipelinesDB,
config.ValidateConfig, // configValidator configserver.ConfigValidator,
callbacksURL.String(), // peerURL string,
buildserver.NewEventHandler, // eventHandlerFactory buildserver.EventHandlerFactory,
drain, // drain <-chan struct{},
engine, // engine engine.Engine,
workerClient, // workerClient worker.Client,
sink, // sink *lager.ReconfigurableSink,
*cliDownloadsDir, // cliDownloadsDir string,
)
if err != nil {
fatal(err)
}
radarSchedulerFactory := pipelines.NewRadarSchedulerFactory(
resourceTracker,
*checkInterval,
db,
engine,
db,
)
webHandler, err := web.NewHandler(
logger,
webValidator,
radarSchedulerFactory,
db,
pipelineDBFactory,
configDB,
*templatesDir,
*publicDir,
engine,
)
if err != nil {
fatal(err)
}
webMux := http.NewServeMux()
webMux.Handle("/api/v1/", apiHandler)
webMux.Handle("/", webHandler)
var httpHandler http.Handler
httpHandler = webMux
if !*publiclyViewable {
httpHandler = auth.Handler{
Handler: httpHandler,
Validator: webValidator,
}
}
// copy Authorization header as ATC-Authorization cookie for websocket auth
httpHandler = auth.CookieSetHandler{
Handler: httpHandler,
}
httpHandler = httpmetrics.Wrap(httpHandler)
webListenAddr := fmt.Sprintf("%s:%d", *webListenAddress, *webListenPort)
debugListenAddr := fmt.Sprintf("%s:%d", *debugListenAddress, *debugListenPort)
syncer := pipelines.NewSyncer(
logger.Session("syncer"),
db,
pipelineDBFactory,
func(pipelineDB Db.PipelineDB) ifrit.Runner {
return grouper.NewParallel(os.Interrupt, grouper.Members{
{
pipelineDB.ScopedName("radar"),
rdr.NewRunner(
logger.Session(pipelineDB.ScopedName("radar")),
*noop,
db,
radarSchedulerFactory.BuildRadar(pipelineDB),
pipelineDB,
1*time.Minute,
),
},
{
pipelineDB.ScopedName("scheduler"),
&sched.Runner{
Logger: logger.Session(pipelineDB.ScopedName("scheduler")),
Locker: db,
DB: pipelineDB,
Scheduler: radarSchedulerFactory.BuildScheduler(pipelineDB),
Noop: *noop,
Interval: 10 * time.Second,
},
},
})
},
)
buildTracker := builds.NewTracker(
logger.Session("build-tracker"),
db,
engine,
)
memberGrouper := []grouper.Member{
{"web", http_server.New(webListenAddr, httpHandler)},
{"debug", http_server.New(debugListenAddr, http.DefaultServeMux)},
{"drainer", ifrit.RunFunc(func(signals <-chan os.Signal, ready chan<- struct{}) error {
close(ready)
<-signals
close(drain)
return nil
})},
{"pipelines", pipelines.SyncRunner{
Syncer: syncer,
Interval: 10 * time.Second,
Clock: clock.NewClock(),
}},
{"builds", builds.TrackerRunner{
Tracker: buildTracker,
Interval: 10 * time.Second,
Clock: clock.NewClock(),
}},
}
group := grouper.NewParallel(os.Interrupt, memberGrouper)
running := ifrit.Envoke(sigmon.New(group))
logger.Info("listening", lager.Data{
"web": webListenAddr,
"debug": debugListenAddr,
})
err = <-running.Wait()
if err != nil {
logger.Error("exited-with-failure", err)
os.Exit(1)
}
}
. "github.com/onsi/gomega"
"github.com/onsi/gomega/gbytes"
)
var _ = Describe("Explain", func() {
var (
logger *lagertest.TestLogger
underlyingConn *fakes.FakeConn
explainConn db.Conn
)
BeforeEach(func() {
logger = lagertest.NewTestLogger("explain")
underlyingConn = new(fakes.FakeConn)
explainConn = db.Explain(logger, underlyingConn, 100*time.Millisecond)
})
AfterEach(func() {
err := explainConn.Close()
Ω(err).ShouldNot(HaveOccurred())
})
It("passes through calls to the underlying connection", func() {
explainConn.Ping()
Ω(underlyingConn.PingCallCount()).To(Equal(1))
})
It("returns the return values from the underlying connection", func() {
underlyingConn.PingReturns(errors.New("disaster"))