func (c *Container) Create(args *CreateArgs) error {
securityOpts, _ := config.GetList("docker:security-opts")
var exposedPorts map[docker.Port]struct{}
if !args.Deploy {
if c.ExposedPort == "" {
c.ExposedPort = dockercommon.WebProcessDefaultPort() + "/tcp"
}
exposedPorts = map[docker.Port]struct{}{
docker.Port(c.ExposedPort): {},
}
}
var user string
if args.Building {
user = c.user()
}
routerName, err := args.App.GetRouter()
if err != nil {
return err
}
routerType, _, err := router.Type(routerName)
if err != nil {
return err
}
hostConf, err := c.hostConfig(args.App, args.Deploy)
if err != nil {
return err
}
conf := docker.Config{
Image: args.ImageID,
Cmd: args.Commands,
Entrypoint: []string{},
ExposedPorts: exposedPorts,
AttachStdin: false,
AttachStdout: false,
AttachStderr: false,
Memory: hostConf.Memory,
MemorySwap: hostConf.MemorySwap,
CPUShares: hostConf.CPUShares,
SecurityOpts: securityOpts,
User: user,
Labels: map[string]string{
"tsuru.container": strconv.FormatBool(true),
"tsuru.app.name": args.App.GetName(),
"tsuru.app.platform": args.App.GetPlatform(),
"tsuru.process.name": c.ProcessName,
"tsuru.router.name": routerName,
"tsuru.router.type": routerType,
},
}
c.addEnvsToConfig(args, strings.TrimSuffix(c.ExposedPort, "/tcp"), &conf)
opts := docker.CreateContainerOptions{Name: c.Name, Config: &conf, HostConfig: hostConf}
var nodeList []string
if len(args.DestinationHosts) > 0 {
var node cluster.Node
node, err = args.Provisioner.GetNodeByHost(args.DestinationHosts[0])
if err != nil {
return err
}
nodeList = []string{node.Address}
}
schedulerOpts := &SchedulerOpts{
AppName: args.App.GetName(),
ProcessName: args.ProcessName,
ActionLimiter: args.Provisioner.ActionLimiter(),
}
addr, cont, err := args.Provisioner.Cluster().CreateContainerSchedulerOpts(opts, schedulerOpts, net.StreamInactivityTimeout, nodeList...)
hostAddr := net.URLToHost(addr)
if schedulerOpts.LimiterDone != nil {
schedulerOpts.LimiterDone()
}
if err != nil {
log.Errorf("error on creating container in docker %s - %s", c.AppName, err)
return err
}
c.ID = cont.ID
c.HostAddr = hostAddr
return nil
}
func serviceSpecForApp(opts tsuruServiceOpts) (*swarm.ServiceSpec, error) {
var envs []string
for _, envData := range opts.app.Envs() {
envs = append(envs, fmt.Sprintf("%s=%s", envData.Name, envData.Value))
}
host, _ := config.GetString("host")
envs = append(envs, fmt.Sprintf("%s=%s", "TSURU_HOST", host))
var cmds []string
var err error
var endpointSpec *swarm.EndpointSpec
var networks []swarm.NetworkAttachmentConfig
var healthConfig *container.HealthConfig
port := dockercommon.WebProcessDefaultPort()
portInt, _ := strconv.Atoi(port)
if !opts.isDeploy && !opts.isIsolatedRun {
envs = append(envs, []string{
fmt.Sprintf("%s=%s", "port", port),
fmt.Sprintf("%s=%s", "PORT", port),
}...)
endpointSpec = &swarm.EndpointSpec{
Mode: swarm.ResolutionModeVIP,
Ports: []swarm.PortConfig{
{TargetPort: uint32(portInt), PublishedPort: 0},
},
}
networks = []swarm.NetworkAttachmentConfig{
{Target: networkNameForApp(opts.app)},
}
extra := []string{extraRegisterCmds(opts.app)}
cmds, _, err = dockercommon.LeanContainerCmdsWithExtra(opts.process, opts.image, opts.app, extra)
if err != nil {
return nil, errors.WithStack(err)
}
var yamlData provision.TsuruYamlData
yamlData, err = image.GetImageTsuruYamlData(opts.image)
if err != nil {
return nil, errors.WithStack(err)
}
healthConfig = toHealthConfig(yamlData.Healthcheck, portInt)
}
restartCount := 0
replicas := 0
if opts.baseSpec != nil {
replicas, err = strconv.Atoi(opts.baseSpec.Labels[labelProcessReplicas.String()])
if err != nil && opts.baseSpec.Mode.Replicated != nil {
replicas = int(*opts.baseSpec.Mode.Replicated.Replicas)
}
restartCount, _ = strconv.Atoi(opts.baseSpec.Labels[labelServiceRestart.String()])
}
if opts.processState.increment != 0 {
replicas += opts.processState.increment
if replicas < 0 {
return nil, errors.New("cannot have less than 0 units")
}
} else if replicas == 0 && opts.processState.start {
replicas = 1
}
routerName, err := opts.app.GetRouter()
if err != nil {
return nil, errors.WithStack(err)
}
routerType, _, err := router.Type(routerName)
if err != nil {
return nil, errors.WithStack(err)
}
srvName := serviceNameForApp(opts.app, opts.process)
if opts.isDeploy {
replicas = 1
srvName = fmt.Sprintf("%s-build", srvName)
}
if opts.isIsolatedRun {
replicas = 1
srvName = fmt.Sprintf("%sisolated-run", srvName)
}
uReplicas := uint64(replicas)
if opts.processState.stop {
uReplicas = 0
}
if opts.processState.restart {
restartCount++
}
labels := map[string]string{
labelService.String(): strconv.FormatBool(true),
labelServiceDeploy.String(): strconv.FormatBool(opts.isDeploy),
labelServiceIsolatedRun.String(): strconv.FormatBool(opts.isIsolatedRun),
labelServiceBuildImage.String(): opts.buildImage,
labelAppName.String(): opts.app.GetName(),
labelAppProcess.String(): opts.process,
labelAppPlatform.String(): opts.app.GetPlatform(),
labelRouterName.String(): routerName,
labelRouterType.String(): routerType,
labelProcessReplicas.String(): strconv.Itoa(replicas),
labelServiceRestart.String(): strconv.Itoa(restartCount),
labelPoolName.String(): opts.app.GetPool(),
labelProvisionerName.String(): "swarm",
}
user, err := config.GetString("docker:user")
if err != nil {
user, _ = config.GetString("docker:ssh:user")
}
opts.constraints = append(opts.constraints, fmt.Sprintf("node.labels.%s == %s", labelNodePoolName, opts.app.GetPool()))
spec := swarm.ServiceSpec{
TaskTemplate: swarm.TaskSpec{
ContainerSpec: swarm.ContainerSpec{
Image: opts.image,
Env: envs,
Labels: labels,
Command: cmds,
User: user,
Healthcheck: healthConfig,
},
Networks: networks,
RestartPolicy: &swarm.RestartPolicy{
Condition: swarm.RestartPolicyConditionAny,
},
Placement: &swarm.Placement{
Constraints: opts.constraints,
},
},
Networks: networks,
EndpointSpec: endpointSpec,
Annotations: swarm.Annotations{
Name: srvName,
Labels: labels,
},
Mode: swarm.ServiceMode{
Replicated: &swarm.ReplicatedService{
Replicas: &uReplicas,
},
},
}
return &spec, nil
}