Пример #1
0
func init() {
	bin := path.Base(os.Args[0])
	flag.Usage = func() {
		fmt.Fprintf(os.Stderr, `
Usage of %s
================
Example:
  %% %s
`, bin, bin)
		flag.PrintDefaults()
	}
	serverConfig = conf.New()
	serverConfig.VersionBuildStamp = Buildstamp
	serverConfig.VersionGitHash = Githash
	//config from file is loaded.
	//the values will be overwritten by command line flags
	flag.BoolVar(&serverConfig.DebugEnabled, "debug", serverConfig.DebugEnabled, "Enable debug output")
	flag.BoolVar(&serverConfig.Oauth2Enabled, "oauth", serverConfig.Oauth2Enabled, "Enable OAuth2")
	flag.IntVar(&serverConfig.AuthorizationType, "team-auth", serverConfig.AuthorizationType, "Enable team based authorization")
	flag.StringVar(&serverConfig.AuthURL, "oauth-authurl", "", "OAuth2 Auth URL")
	flag.StringVar(&serverConfig.TokenURL, "oauth-tokeninfourl", "", "OAuth2 Auth URL")
	flag.StringVar(&serverConfig.TLSCertfilePath, "tls-cert", serverConfig.TLSCertfilePath, "TLS Certfile")
	flag.StringVar(&serverConfig.TLSKeyfilePath, "tls-key", serverConfig.TLSKeyfilePath, "TLS Keyfile")
	flag.IntVar(&serverConfig.Port, "port", serverConfig.Port, "Listening TCP Port of the service.")
	if serverConfig.Port == 0 {
		serverConfig.Port = 8082 //default port when no option is provided
	}
	flag.DurationVar(&serverConfig.LogFlushInterval, "flush-interval", time.Second*5, "Interval to flush Logs to disk.")
}
Пример #2
0
// Deploy deploys a new application
// takes CreateRequest from backend as argument
func (mb *MarathonBackend) Deploy(cr *CreateRequest) (string, error) {
	glog.Infof("Deploying a new application with name %s", cr.Name)
	app := marathon.NewDockerApplication()
	id := cr.Name
	ports := cr.Ports
	cpu := float64(cr.CPULimit)
	storage := 0.0 //TODO: setup limit for storage
	memory := float64(cr.MemoryLimit)
	labels := cr.Labels
	imageurl := cr.ImageURL
	env := cr.Env
	replicas := cr.Replicas

	app.Name(id)
	uris := strings.Fields(DOCKERCFG)
	app.Uris = &uris
	app.CPU(cpu).Memory(memory).Storage(storage).Count(replicas)
	app.Env = &env
	portmappings := make([]marathon.PortMapping, 0, len(ports))
	for _, port := range ports {
		portmappings = append(portmappings, marathon.PortMapping{ContainerPort: port, HostPort: 0, Protocol: "tcp"}) //TODO: change to protocol params, we probably want to have UDP too.
	}

	app.Container.Docker.PortMappings = &portmappings
	//fluentd implementation
	if conf.New().FluentdEnabled {
		app.Container.Docker.AddParameter("log-driver", "fluentd")
		app.Container.Docker.AddParameter("log-opt", "\"fluentd-address=localhost:24224\"")
		if DOCKERVERSION == "1.9" {
			//this is unsupported if docker < 1.9
			app.Container.Docker.AddParameter("log-opt", "\"tag={{.ImageName}}/{{.Name}}\"")
		} else {
			app.Container.Docker.AddParameter("log-opt", "\"fluentd-tag={{.Name}}\"")
		}

	}
	app.Labels = &labels
	forcepull := true
	app.Container.Docker.Container(imageurl).ForcePullImage = &forcepull
	volumes := make([]marathon.Volume, 0, len(cr.Volumes))
	for _, volume := range cr.Volumes {
		volumes = append(volumes, marathon.Volume{ContainerPath: volume.ContainerPath, HostPath: volume.HostPath, Mode: volume.Mode})
	}

	app.Container.Volumes = &volumes

	//TODO must implement configurable health checks
	application, err := mb.Client.CreateApplication(app)
	glog.Info(application) //TODO do we want to get some more information? Container IDs? I guess they can be not stable
	if err != nil {
		glog.Errorf("Could not create application %s, error %s", app.ID, err)
		return "", err
	}
	glog.Infof("Application was created, %s", app.ID)
	return app.ID, nil

}
Пример #3
0
// getMarathonClient connects to mesos cluster
// returns marathon interface like tasks, applications
// groups, deployment, subscriptions, ...
func initMarathonClient() marathon.Marathon {
	config := marathon.NewDefaultConfig()
	chimpConfig := conf.New()
	config.URL = chimpConfig.Endpoint
	if chimpConfig.MarathonAuth.Enabled {
		config.HTTPBasicAuthUser = chimpConfig.MarathonAuth.MarathonHttpUser
		config.HTTPBasicPassword = chimpConfig.MarathonAuth.MarathonHttpPassword
	}
	client, err := marathon.NewClient(config)
	if err != nil {
		glog.Fatalf("Failed to create a client for marathon, error: %s", err)
	}
	return client
}
Пример #4
0
func rootHandler(ginCtx *gin.Context) {
	config := conf.New()
	ginCtx.JSON(http.StatusOK, gin.H{"chimp-server": fmt.Sprintf("Build Time: %s - Git Commit Hash: %s", config.VersionBuildStamp, config.VersionGitHash)})
}
Пример #5
0
	"github.com/golang/glog"
	backend "github.com/zalando/chimp/backend"
	"github.com/zalando/chimp/conf"
	. "github.com/zalando/chimp/types"
	"github.com/zalando/chimp/validators"
)

//Backend contains the current backend
type Backend struct {
	BackendType string
	Backend     backend.Backend
}

// Bootstrap backend
var se = Backend{
	BackendType: conf.New().BackendType,
}

//Start initializes the current backend
func Start() {
	se.Backend = backend.New()
}

//BackendError is the erro representation that should be consumed by "frontend" serving layer
//resembles (but no need to be 1:1) what frontend needs to give to the user which is based on our RESTful API Guidelines doc.
type BackendError struct {
	Status int
	Title  string //error message coming from THIS layer
	Detail string //error message coming from backends
}
Пример #6
0
func getKubernetesClient() *k8s.Client {
	client := k8s.NewOrDie(&k8s.Config{Host: conf.New().Endpoint, Version: "v1"}) //PANIC if config not correct
	return client
}
Пример #7
0
// GetApp returns a specific application from marathon
// marathon.Application is a struct with a lot of details
// about the application itself
func (mb *MarathonBackend) GetApp(req *ArtifactRequest) (*Artifact, error) {
	application, err := mb.Client.Application(req.Name)
	if err != nil {
		glog.Errorf("Could not get application %s, error: %s", req.Name, err)
		return nil, err
	}
	var status = "RUNNING" //this is just our base case. we then check the status below
	var message string
	if !application.AllTaskRunning() {
		//deploying or waiting or failed, we just don't know!
		//TODO: this is due to marathon API. This must be discussed and improved in marathon!
		status = "DEPLOYING/WAITING"
		//also in case of errors the app is never "FAILED" when the policy is to accept deployments
		//and try to retry till more resources are available
		if application.LastTaskFailure != nil {
			message = fmt.Sprintf("%s, %s AT %s", application.LastTaskFailure.State,
				application.LastTaskFailure.Message, application.LastTaskFailure.Timestamp)
		}
	}
	endpoints := make([]string, 0, len(application.Tasks))

	//transforming the data coming from kubernetes into chimp structure
	replicas := make([]*Replica, 0, len(application.Tasks))
	for _, replica := range application.Tasks {
		//copying container data structure
		containers := make([]*Container, 0, 1)
		status := true
		statString := "OK"
		for _, hc := range replica.HealthCheckResults {
			if hc.Alive == false {
				status = false
			}
		}
		if !status {
			statString = "NOT ALIVE"
		}

		containerName, err := buildContainerName(replica.Host, replica.ID)
		logInfo := map[string]string{}
		if err == nil { //If the URL cannot be build I don't want to encounter any other problem
			remoteURL := "https://www.scalyr.com/events?mode=log&filter=$logfile%3D%27%2Ffluentd%2F%2F" + containerName + "%27%20$serverHost%3D%27" + strings.Split(replica.Host, ".")[0] + "%27"
			logInfo = map[string]string{"containerName": containerName, "remoteURL": remoteURL}
		}

		container := Container{
			ImageURL: application.Container.Docker.Image,
			Status:   statString,
			LogInfo:  logInfo,
		}
		containers = append(containers, &container)

		ports := make([]*PortType, 0, len(replica.Ports))
		for _, port := range replica.Ports {
			ports = append(ports, &PortType{Port: port, Protocol: ""})
		}
		endpoints = append(endpoints, fmt.Sprintf("http://%s:%s/", replica.Host, intslice2str(replica.Ports, "")))
		replica := Replica{Status: statString, Containers: containers, Endpoints: endpoints, Ports: ports} //HACK, this shouldn't be added only one time
		endpoints = nil
		replicas = append(replicas, &replica)
	}

	var ep string
	if strings.HasPrefix(application.ID, "/") {
		ep = application.ID[1:len(application.ID)]
	} else {
		ep = application.ID
	}
	endpoint := fmt.Sprintf(conf.New().EndpointPattern, ep)

	artifact := Artifact{
		Name:              application.ID,
		Message:           message,
		Status:            status,
		Labels:            application.Labels,
		Env:               application.Env,
		RunningReplicas:   replicas,
		RequestedReplicas: *application.Instances,
		CPUS:              application.CPUs,
		Memory:            *application.Mem,
		Endpoint:          endpoint,
	}

	return &artifact, nil
}