Exemple #1
0
// Checkout project from repository
func (b *builder) updateCode() {
	p, err := b.scm.ImportPathFromRepo(b.BuildConfig.AppRepo)
	b.projectPath = path.Join(b.BuildConfig.Jail, "src", p)

	if err != nil {
		log.Fatal(err.Error())
	}

	out, err := b.term.Exec("ls " + b.projectPath)

	if err != nil {
		fmt.Println("Creating project directories")
		out, err = b.term.Exec("mkdir -p " + b.projectPath)

		if err != nil {
			log.Fatal("Could not create project directories")
		}

		fmt.Println(string(out))
	}

	// Fetch code base
	b.scm.SetTerminal(b.term)
	b.scm.Checkout(b.BuildConfig.AppRepo, b.BuildConfig.RepoBranch, b.projectPath)
}
Exemple #2
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func (b *builder) validatePackage() {
	// Validate this package is a command
	var err error
	b.pack, err = context.ImportDir(".", 0)

	if err != nil {
		log.Fatal("Could not import package for validation")
	}

	if !b.pack.IsCommand() {
		log.Fatal("Package is not a command")
	}
}
Exemple #3
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func (c *SSHConn) ExecPath(cmd, path string) (out []byte, err error) {
	var session *ssh.Session

	session, err = c.client.NewSession()
	if err != nil {
		log.Fatal("Failed to create session: " + err.Error())
	}
	defer session.Close()

	envVars := ""
	if c.env != nil {
		for name, value := range c.env {
			envVars = envVars + name + "=\"" + value + "\" "
			/*
				      TODO: This should be the proper way to set the environment, but fails for some reason
							       * Investigate why and possibly send pull-request to maintainer
										err = session.Setenv(name, value)

										if err != nil {
											log.Fatal("Failed to set environment: " + err.Error())
										}
			*/
		}
	}

	cmd = envVars + cmd

	if path != "" {
		cmd = "cd " + path + " && " + cmd
	}

	return session.CombinedOutput(cmd)
}
Exemple #4
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func SetLogLevel(criteria *skynet.Criteria, level string) {
	instances, err := skynet.GetServiceManager().ListInstances(criteria)

	if err != nil {
		log.Fatal(err)
	}

	var wait sync.WaitGroup

	for _, instance := range filterDaemon(instances) {
		wait.Add(1)
		go func(instance skynet.ServiceInfo) {
			fmt.Println("Setting LogLevel to " + level + " for: " + instance.UUID)
			d := daemon.GetDaemonForService(&instance)

			in := daemon.SubServiceLogLevelRequest{
				UUID:  instance.UUID,
				Level: level,
			}
			out, err := d.SubServiceLogLevel(in)

			if err != nil {
				fmt.Println("Returned Error: " + err.Error())
				wait.Done()
				return
			}

			logLevelTemplate.Execute(os.Stdout, out)
			wait.Done()
		}(instance)
	}

	wait.Wait()
}
Exemple #5
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func GetServiceManager() ServiceManager {
	if manager == nil {
		log.Fatal("No ServiceManager provided")
	}

	return manager
}
Exemple #6
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func Stop(criteria *skynet.Criteria) {
	instances, err := skynet.GetServiceManager().ListInstances(criteria)

	if err != nil {
		log.Fatal(err)
	}

	var wait sync.WaitGroup

	for _, instance := range filterDaemon(instances) {
		wait.Add(1)
		go func(instance skynet.ServiceInfo) {
			fmt.Println("Stopping: " + instance.UUID)
			d := daemon.GetDaemonForService(&instance)

			in := daemon.StopSubServiceRequest{
				UUID: instance.UUID,
			}
			out, err := d.StopSubService(in)

			if err != nil {
				fmt.Println("Returned Error: " + err.Error())
				wait.Done()
				return
			}

			stopTemplate.Execute(os.Stdout, out)
			wait.Done()
		}(instance)
	}

	wait.Wait()
}
Exemple #7
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// Daemon will run and maintain skynet services.
//
// Daemon will run the "SkynetDeployment" service, which can be used
// to remotely spawn new services on the host.
func main() {
	si := skynet.NewServiceInfo("SkynetDaemon", "2.0.0")
	deployment := NewSkynetDaemon()

	s := service.CreateService(deployment, si)

	deployment.Service = s

	// handle panic so that we remove ourselves from the pool in case of catastrophic failure
	defer func() {
		s.Shutdown()
		deployment.closeStateFile()

		if err := recover(); err != nil {
			e := err.(error)
			log.Fatal("Unrecovered error occured: " + e.Error())
		}
	}()

	// Collect Host metrics
	statTicker := time.Tick((5 * time.Second))
	go func() {
		for _ = range statTicker {
			deployment.updateHostStats(si.ServiceAddr.IPAddress)
		}
	}()

	// If we pass false here service will not be Registered
	// we could do other work/tasks by implementing the Started method and calling Register() when we're ready
	s.Start().Wait()
}
Exemple #8
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func StopDaemon(criteria *skynet.Criteria) {
	hosts, err := skynet.GetServiceManager().ListHosts(criteria)

	if err != nil {
		log.Fatal(err)
	}

	var wait sync.WaitGroup

	for _, host := range hosts {
		wait.Add(1)
		go func(host string) {
			d := daemon.GetDaemonForHost(host)

			in := daemon.StopRequest{}
			out, err := d.Stop(in)

			if err != nil {
				fmt.Println("Returned Error: " + err.Error())
				wait.Done()
				return
			}

			if out.Ok {
				fmt.Printf("Daemon stopped on host: %v\n", host)
			} else {
				fmt.Printf("Failed to stop daemon on host: %v\n", host)
			}

			wait.Done()
		}(host)
	}

	wait.Wait()
}
Exemple #9
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func getInstances(c *skynet.Criteria) []skynet.ServiceInfo {
	instances, err := skynet.GetServiceManager().ListInstances(c)

	if err != nil {
		log.Fatal(err)
	}

	return instances
}
Exemple #10
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func getHosts(c *skynet.Criteria) []string {
	hosts, err := skynet.GetServiceManager().ListHosts(c)

	if err != nil {
		log.Fatal(err)
	}

	return hosts
}
Exemple #11
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func getVersions(c *skynet.Criteria) []string {
	versions, err := skynet.GetServiceManager().ListVersions(c)

	if err != nil {
		log.Fatal(err)
	}

	return versions
}
Exemple #12
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func getServices(c *skynet.Criteria) []string {
	services, err := skynet.GetServiceManager().ListServices(c)

	if err != nil {
		log.Fatal(err)
	}

	return services
}
Exemple #13
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func (b *builder) setupScm() {
	switch b.BuildConfig.RepoType {
	case "git":
		b.scm = new(GitScm)

	default:
		log.Fatal("unkown RepoType")
	}
}
Exemple #14
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func (b *builder) runCommands(cmds []string) {
	for _, cmd := range cmds {
		out, err := b.term.Exec(cmd)
		fmt.Println(string(out))

		if err != nil {
			log.Fatal("Failed to execute dependent command: " + cmd + "\n" + err.Error())
		}
	}
}
Exemple #15
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// NewUUID() provides unique identifier strings.
func NewUUID() string {
	b := make([]byte, 16)
	_, err := io.ReadFull(rand.Reader, b)
	if err != nil {
		log.Fatal(err)
	}
	b[6] = (b[6] & 0x0F) | 0x40
	b[8] = (b[8] &^ 0x40) | 0x80
	return fmt.Sprintf("%x-%x-%x-%x-%x", b[:4], b[4:6], b[6:8], b[8:10], b[10:])
}
Exemple #16
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func NewClient(config *skynet.ClientConfig) *Client {
	if config.MaxConnectionsToInstance == 0 {
		log.Fatal("Must allow at least one instance connection")
	}

	client := &Client{
		Config:       config,
		servicePools: map[string]*servicePool{},
	}

	return client
}
Exemple #17
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func (b *builder) testSkynet() {
	fmt.Println("Testing Skynet")
	p := path.Join(b.BuildConfig.Jail, "src/github.com/skynetservices/skynet2")

	b.getPackageDependencies(p)

	out, err := b.term.ExecPath(b.BuildConfig.GoRoot+"/bin/go test ./...", p)
	fmt.Println(string(out))

	if err != nil {
		log.Fatal("Failed tests: " + err.Error())
	}
}
Exemple #18
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func newBuilder(config string) *builder {
	if config == "" {
		config = "./build.cfg"
	}

	f, err := ioutil.ReadFile(config)

	if err != nil {
		log.Fatal("Failed to read: " + config)
	}

	b := new(builder)

	err = json.Unmarshal(f, b)

	if err != nil {
		log.Fatal("Failed to parse " + config + ": " + err.Error())
	}

	if isHostLocal(b.BuildConfig.Host) {
		fmt.Println("Connecting to build machine: " + b.BuildConfig.Host)
		b.term = new(LocalTerminal)
	} else {
		sshClient := new(SSHConn)
		b.term = sshClient
		fmt.Println("Connecting to build machine: " + b.BuildConfig.Host)
		err = sshClient.Connect(b.BuildConfig.Host, b.BuildConfig.User)

		if err != nil {
			log.Fatal("Failed to connect to build machine: " + err.Error())
		}
	}

	b.validatePackage()

	return b
}
Exemple #19
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func (b *builder) getPackageDependencies(p string) {
	flags := []string{"-d"}

	if b.BuildConfig.UpdatePackages {
		flags = append(flags, "-u")
	}

	fmt.Println("Fetching dependencies")
	out, err := b.term.ExecPath(b.BuildConfig.GoRoot+"/bin/go get "+strings.Join(flags, " ")+" ./...", p)
	fmt.Println(string(out))

	if err != nil {
		log.Fatal("Failed to fetch dependencies\n" + err.Error())
	}
}
Exemple #20
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func (b *builder) runTests() {
	p := path.Join(b.projectPath, b.BuildConfig.AppPath)

	fmt.Println("Testing packages")
	out, err := b.term.ExecPath(b.BuildConfig.GoRoot+"/bin/go test", p)
	fmt.Println(string(out))

	if err != nil {
		log.Fatal("Failed tests: " + err.Error())
	}

	if b.BuildConfig.TestSkynet {
		b.testSkynet()
	}
}
Exemple #21
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func criteriaFromArgs(args []string) (*skynet.Criteria, []string) {
	flagset := flag.NewFlagSet("deploy", flag.ExitOnError)
	services := flagset.String("services", "", "services")
	regions := flagset.String("regions", "", "regions")
	instances := flagset.String("instances", "", "instances")
	hosts := flagset.String("hosts", "", "hosts")
	registered := flagset.String("registered", "", "registered")

	flagsetArgs, args := config.SplitFlagsetFromArgs(flagset, args)

	err := flagset.Parse(flagsetArgs)
	if err != nil {
		log.Fatal(err)
	}

	regionCriteria := make([]string, 0, 0)

	if len(*regions) > 0 {
		regionCriteria = strings.Split(*regions, ",")
	}

	hostCriteria := make([]string, 0, 0)

	if len(*hosts) > 0 {
		hostCriteria = strings.Split(*hosts, ",")
	}

	instanceCriteria := make([]string, 0, 0)

	if len(*instances) > 0 {
		instanceCriteria = strings.Split(*instances, ",")
	}

	var reg *bool
	if *registered == "true" {
		*reg = true
	} else if *registered == "false" {
		*reg = false
	}

	return &skynet.Criteria{
		Regions:    regionCriteria,
		Hosts:      hostCriteria,
		Instances:  instanceCriteria,
		Registered: reg,
		Services:   serviceCriteriaFromCsv(*services),
	}, args
}
Exemple #22
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func (b *builder) buildProject() {
	p := path.Join(b.projectPath, b.BuildConfig.AppPath)
	flags := "-v"

	if b.BuildConfig.BuildAllPackages {
		flags = flags + " -a"
	}

	fmt.Println("Building packages")
	out, err := b.term.ExecPath(b.BuildConfig.GoRoot+"/bin/go install "+flags, p)
	fmt.Println(string(out))

	if err != nil {
		log.Fatal("Failed build: " + err.Error())
	}
}
Exemple #23
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func init() {
	flagset := flag.NewFlagSet("config", flag.ContinueOnError)
	flagset.StringVar(&configFile, "config", "", "Config File")
	flagset.StringVar(&uuid, "uuid", "", "uuid")

	args, _ := SplitFlagsetFromArgs(flagset, os.Args[1:])
	flagset.Parse(args)

	// Ensure we have a UUID
	if uuid == "" {
		uuid = NewUUID()
	}

	if configFile == "" {
		for _, f := range defaultConfigFiles {
			if _, err := os.Stat(f); err == nil {
				configFile = f
				break
			}
		}
	}

	if configFile == "" {
		log.Println(log.ERROR, "Failed to find config file")
		conf = config.NewDefault()
		return
	}

	if _, err := os.Stat(configFile); os.IsNotExist(err) {
		log.Println(log.ERROR, "Config file does not exist", err)
		conf = config.NewDefault()
		return
	}

	var err error
	if conf, err = config.ReadDefault(configFile); err != nil {
		conf = config.NewDefault()
		log.Fatal(err)
	}

	// Set default log level from config, this can be overriden at the service level when the service is created
	if l, err := conf.RawStringDefault("log.level"); err == nil {
		log.SetLogLevel(log.LevelFromString(l))
	}
}
Exemple #24
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func Start(criteria *skynet.Criteria, args []string) {
	if len(args) < 1 {
		fmt.Println("Please provide a service name 'sky start binaryName'")
		return
	}

	hosts, err := skynet.GetServiceManager().ListHosts(criteria)

	if err != nil {
		log.Fatal(err)
	}

	var wait sync.WaitGroup

	for _, host := range hosts {
		wait.Add(1)
		go func(host string) {
			fmt.Println("Starting on host: " + host)
			d := daemon.GetDaemonForHost(host)

			in := daemon.StartSubServiceRequest{
				BinaryName: args[0],
				Args:       shellquote.Join(args[1:]...),
				// TODO: maybe an optional flag to change this?
				Registered: true,
			}
			out, err := d.StartSubService(in)

			if err != nil {
				fmt.Println("Returned Error: " + err.Error())
				wait.Done()
				return
			}

			startTemplate.Execute(os.Stdout, out)
			wait.Done()
		}(host)
	}

	wait.Wait()
}
Exemple #25
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// Daemon will run and maintain skynet services.
//
// Daemon will run the "SkynetDeployment" service, which can be used
// to remotely spawn new services on the host.
func main() {
	config, _ := skynet.GetServiceConfig()
	log.Println(log.INFO, "Connecting to ZooKeeper: ", os.Getenv("SKYNET_ZOOKEEPER"))
	skynet.SetServiceManager(zkmanager.NewZookeeperServiceManager(os.Getenv("SKYNET_ZOOKEEPER"), 1*time.Second))

	config.Name = "SkynetDaemon"
	config.Version = "2"

	deployment := NewSkynetDaemon()

	s := service.CreateService(deployment, config)

	deployment.Service = s

	// handle panic so that we remove ourselves from the pool in case of catastrophic failure
	defer func() {
		s.Shutdown()
		deployment.closeStateFile()

		if err := recover(); err != nil {
			e := err.(error)
			log.Fatal("Unrecovered error occured: " + e.Error())
		}
	}()

	// Collect Host metrics
	statTicker := time.Tick((5 * time.Second))
	go func() {
		for _ = range statTicker {
			deployment.updateHostStats(config.ServiceAddr.IPAddress)
		}
	}()

	// If we pass false here service will not be Registered
	// we could do other work/tasks by implementing the Started method and calling Register() when we're ready
	s.Start().Wait()
}
Exemple #26
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func SetDaemonLogLevel(criteria *skynet.Criteria, level string) {
	hosts, err := skynet.GetServiceManager().ListHosts(criteria)

	if err != nil {
		log.Fatal(err)
	}

	var wait sync.WaitGroup

	for _, host := range hosts {
		wait.Add(1)
		go func(host string) {
			d := daemon.GetDaemonForHost(host)

			in := daemon.LogLevelRequest{
				Level: level,
			}
			out, err := d.LogLevel(in)

			if err != nil {
				fmt.Println("Returned Error: " + err.Error())
				wait.Done()
				return
			}

			if out.Ok {
				fmt.Printf("Set daemon log level to %v on host: %v\n", level, host)
			} else {
				fmt.Printf("Failed to set daemon log level to %v on host: %v\n", level, host)
			}

			wait.Done()
		}(host)
	}

	wait.Wait()
}
Exemple #27
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func (b *builder) deploy(hosts []string) {
	for _, host := range hosts {
		var out []byte
		var err error

		if isHostLocal(host) && isHostLocal(b.BuildConfig.Host) {
			// Built locally, deploying locally
			fmt.Println("Copying local binary")

			// First move binary to .old in case it's currently running
			command := exec.Command("mv", path.Join(b.DeployConfig.DeployPath, b.DeployConfig.BinaryName), path.Join(b.DeployConfig.DeployPath, b.DeployConfig.BinaryName+".old"))
			out, err = command.CombinedOutput()

			if err == nil {
				fmt.Println(string(out))
				command = exec.Command("cp", path.Join(b.BuildConfig.Jail, "bin", path.Base(b.BuildConfig.AppPath)), path.Join(b.DeployConfig.DeployPath, b.DeployConfig.BinaryName))
				out, err = command.CombinedOutput()
			}
		} else if isHostLocal(host) && !isHostLocal(b.BuildConfig.Host) {
			// Built remotely, deploying locally
			fmt.Println("Copying binary from build machine")
			h, p := splitHostPort(b.BuildConfig.Host)

			// First move binary to .old in case it's currently running
			command := exec.Command("mv", path.Join(b.DeployConfig.DeployPath, b.DeployConfig.BinaryName), path.Join(b.DeployConfig.DeployPath, b.DeployConfig.BinaryName+".old"))
			out, _ = command.CombinedOutput()

			fmt.Println(string(out))
			command = exec.Command("scp", "-P", p, b.BuildConfig.User+"@"+h+":"+path.Join(b.BuildConfig.Jail, "bin", path.Base(b.BuildConfig.AppPath)),
				path.Join(b.DeployConfig.DeployPath, b.DeployConfig.BinaryName))
			out, err = command.CombinedOutput()
		} else if !isHostLocal(host) && isHostLocal(b.BuildConfig.Host) {
			// Built locally, deploying remotely
			fmt.Println("Pushing binary to host: " + host)
			h, p := splitHostPort(host)

			// First move binary to .old in case it's currently running
			command := exec.Command("ssh", "-p", p, b.DeployConfig.User+"@"+h, "mv", path.Join(b.DeployConfig.DeployPath, b.DeployConfig.BinaryName), path.Join(b.DeployConfig.DeployPath, b.DeployConfig.BinaryName+".old"))
			out, _ = command.CombinedOutput()

			fmt.Println(string(out))
			command = exec.Command("scp", "-P", p, path.Join(b.BuildConfig.Jail, "bin", path.Base(b.BuildConfig.AppPath)), b.DeployConfig.User+"@"+h+":"+path.Join(b.DeployConfig.DeployPath, b.DeployConfig.BinaryName))
			out, err = command.CombinedOutput()
		} else if !isHostLocal(host) && !isHostLocal(b.BuildConfig.Host) {
			// Built remotely, deployed remotely
			fmt.Println("Pushing binary from build box to host: " + host)
			h, p := splitHostPort(host)

			// First move binary to .old in case it's currently running
			out, _ := b.term.Exec("ssh -p " + p + " " + b.DeployConfig.User + "@" + h + " mv " + path.Join(b.DeployConfig.DeployPath, b.DeployConfig.BinaryName) + " " + path.Join(b.DeployConfig.DeployPath, b.DeployConfig.BinaryName+".old"))

			fmt.Println(string(out))
			out, err = b.term.Exec("scp -P " + p + " " + path.Join(b.BuildConfig.Jail, "bin", path.Base(b.BuildConfig.AppPath)) + " " + b.DeployConfig.User + "@" + h + ":" + path.Join(b.DeployConfig.DeployPath, b.DeployConfig.BinaryName))
		}

		fmt.Println(string(out))

		if err != nil {
			log.Fatal("Failed to deploy: " + err.Error())
		}
	}
}
Exemple #28
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func main() {
	log.SetLogLevel(log.ERROR)

	var args []string
	criteria, args := criteriaFromArgs(os.Args[1:])

	if len(args) == 0 {
		CommandLineHelp()
		return
	}

	switch args[0] {
	case "help", "h":
		CommandLineHelp()
	case "build", "b":
		flagset := flag.NewFlagSet("build", flag.ExitOnError)
		configFile := flagset.String("build", "./build.cfg", "build config file")
		flagsetArgs, _ := config.SplitFlagsetFromArgs(flagset, args)

		err := flagset.Parse(flagsetArgs)
		if err != nil {
			log.Fatal(err)
			return
		}

		Build(*configFile)
	case "deploy", "d":
		flagset := flag.NewFlagSet("deploy", flag.ExitOnError)
		configFile := flagset.String("build", "./build.cfg", "build config file")
		flagsetArgs, _ := config.SplitFlagsetFromArgs(flagset, args)

		err := flagset.Parse(flagsetArgs)
		if err != nil {
			log.Fatal(err)
			return
		}

		Deploy(*configFile, criteria)
	case "hosts":
		ListHosts(criteria)
	case "regions":
		ListRegions(criteria)
	case "services":
		ListServices(criteria)
	case "versions":
		ListVersions(criteria)
	case "instances":
		ListInstances(criteria)
	case "start":
		Start(criteria, args[1:])
	case "stop":
		Stop(criteria)
	case "restart":
		Restart(criteria)
	case "register":
		Register(criteria)
	case "unregister":
		Unregister(criteria)
	case "log":
		SetLogLevel(criteria, args[1])
	case "daemon":
		if len(args) >= 2 {
			switch args[1] {
			case "log":
				if len(args) >= 3 {
					SetDaemonLogLevel(criteria, args[2])
				} else {
					fmt.Println("Must supply a log level")
				}
			case "stop":
				StopDaemon(criteria)
			}
		} else {
			fmt.Println("Supported subcommands for daemon are log, and stop")
		}
	case "cli":
		InteractiveShell()
	default:
		fmt.Println("Unknown Command: ", args[0])
		CommandLineHelp()
	}
}