// addFrontEndRegistration adds registration code for frontends to the given units func addFrontEndRegistration(t *jobs.Task, main *sdunits.Unit, ctx generatorContext) error { if len(t.PublicFrontEnds) == 0 && len(t.PrivateFrontEnds) == 0 { return nil } serviceName := t.ServiceName() targetServiceName := serviceName if t.Type == "proxy" { targetServiceName = t.Target.EtcdServiceName() } httpKey := fmt.Sprintf("/pulcy/frontend/%s-%d", serviceName, ctx.ScalingGroup) httpRecord := api.FrontendRecord{ Service: targetServiceName, HttpCheckPath: t.HttpCheckPath, HttpCheckMethod: t.HttpCheckMethod, Sticky: t.Sticky, Backup: t.Backup, Mode: "", // Defaults to http } tcpKey := fmt.Sprintf("/pulcy/frontend/%s-%d-tcp", serviceName, ctx.ScalingGroup) tcpRecord := api.FrontendRecord{ Service: targetServiceName, HttpCheckPath: t.HttpCheckPath, HttpCheckMethod: t.HttpCheckMethod, Sticky: t.Sticky, Backup: t.Backup, Mode: "tcp", } instanceHttpKey := fmt.Sprintf("/pulcy/frontend/%s-%d-inst", serviceName, ctx.ScalingGroup) instanceHttpRecord := api.FrontendRecord{ Service: fmt.Sprintf("%s-%d", targetServiceName, ctx.ScalingGroup), HttpCheckPath: t.HttpCheckPath, Sticky: t.Sticky, Backup: t.Backup, } instanceTcpKey := fmt.Sprintf("/pulcy/frontend/%s-%d-inst-tcp", serviceName, ctx.ScalingGroup) instanceTcpRecord := api.FrontendRecord{ Service: fmt.Sprintf("%s-%d", targetServiceName, ctx.ScalingGroup), HttpCheckPath: t.HttpCheckPath, Sticky: t.Sticky, Backup: t.Backup, Mode: "tcp", } var rwRules []api.RewriteRule if t.Type == "proxy" && t.Rewrite != nil { rwRules = append(rwRules, api.RewriteRule{ PathPrefix: t.Rewrite.PathPrefix, RemovePathPrefix: t.Rewrite.RemovePathPrefix, Domain: t.Rewrite.Domain, }) } for _, fr := range t.PublicFrontEnds { record := &httpRecord if fr.Mode == "tcp" { record = &tcpRecord } selRecord := api.FrontendSelectorRecord{ Weight: fr.Weight, Domain: fr.Domain, PathPrefix: fr.PathPrefix, SslCert: fr.SslCert, ServicePort: fr.Port, FrontendPort: fr.HostPort, RewriteRules: rwRules, } if err := addUsers(t, &selRecord, fr.Users); err != nil { return maskAny(err) } record.Selectors = append(record.Selectors, selRecord) } for _, fr := range t.PrivateFrontEnds { record := &httpRecord instanceRecord := &instanceHttpRecord if fr.Mode == "tcp" { record = &tcpRecord instanceRecord = &instanceTcpRecord } selRecord := api.FrontendSelectorRecord{ Domain: t.PrivateDomainName(), ServicePort: fr.Port, FrontendPort: fr.HostPort, Private: true, RewriteRules: rwRules, } if err := addUsers(t, &selRecord, fr.Users); err != nil { return maskAny(err) } record.Selectors = append(record.Selectors, selRecord) if fr.RegisterInstance { instanceSelRecord := selRecord instanceSelRecord.Domain = t.InstanceSpecificPrivateDomainName(ctx.ScalingGroup) instanceRecord.Selectors = append(instanceRecord.Selectors, instanceSelRecord) } } if len(instanceHttpRecord.Selectors) > 0 { if err := addFrontEndRegistrationRecord(t, main, instanceHttpKey, instanceHttpRecord, "FrontEndRegistration-i"); err != nil { return maskAny(err) } } if len(instanceTcpRecord.Selectors) > 0 { if err := addFrontEndRegistrationRecord(t, main, instanceTcpKey, instanceTcpRecord, "FrontEndRegistration-i-tcp"); err != nil { return maskAny(err) } } if len(httpRecord.Selectors) > 0 { if err := addFrontEndRegistrationRecord(t, main, httpKey, httpRecord, "FrontEndRegistration"); err != nil { return maskAny(err) } } if len(tcpRecord.Selectors) > 0 { if err := addFrontEndRegistrationRecord(t, main, tcpKey, tcpRecord, "FrontEndRegistration-tcp"); err != nil { return maskAny(err) } } return nil }
// createMainDockerCmdLine creates the `ExecStart` line for // the main unit. func (e *dockerEngine) createMainDockerCmdLine(t *jobs.Task, image string, env map[string]string, scalingGroup uint) (cmdline.Cmdline, error) { serviceName := t.ServiceName() cmd, err := e.createDockerCmd(env, t.Network) if err != nil { return cmd, maskAny(err) } cmd.Add(nil, "run", "--rm", fmt.Sprintf("--name %s", t.ContainerName(scalingGroup))) if err := e.addDockerNetworkArgs(&cmd, env, t); err != nil { return cmd, maskAny(err) } if len(t.Ports) > 0 { for _, p := range t.Ports { cmd.Add(env, fmt.Sprintf("-p %s", p)) } } else { cmd.Add(env, "-P") } for i, v := range t.Volumes { if v.IsLocal() { cmd.Add(env, fmt.Sprintf("-v %s", v)) } else if !v.IsLocal() { cmd.Add(env, fmt.Sprintf("--volumes-from %s", createVolumeUnitContainerName(t, i, scalingGroup))) } } for _, secret := range t.Secrets { if ok, path := secret.TargetFile(); ok { hostPath, err := secretFilePath(t, scalingGroup, secret) if err != nil { return cmdline.Cmdline{}, maskAny(err) } cmd.Add(env, fmt.Sprintf("-v %s:%s:ro", hostPath, path)) } } for _, name := range t.VolumesFrom { other, err := t.Task(name) if err != nil { return cmdline.Cmdline{}, maskAny(err) } for i, v := range other.Volumes { if !v.IsLocal() { cmd.Add(env, fmt.Sprintf("--volumes-from %s", createVolumeUnitContainerName(other, i, scalingGroup))) } } cmd.Add(env, fmt.Sprintf("--volumes-from %s", other.ContainerName(scalingGroup))) } envKeys := []string{} for k := range t.Environment { envKeys = append(envKeys, k) } sort.Strings(envKeys) if e.options.EnvFile != "" { cmd.Add(env, fmt.Sprintf("--env-file=%s", e.options.EnvFile)) } for _, k := range envKeys { cmd.Add(env, "-e "+strconv.Quote(fmt.Sprintf("%s=%s", k, t.Environment[k]))) } if t.Secrets.AnyTargetEnviroment() { cmd.Add(env, "--env-file="+secretEnvironmentPath(t, scalingGroup)) } cmd.Add(env, fmt.Sprintf("-e SERVICE_NAME=%s", serviceName)) // Support registrator for _, cap := range t.Capabilities { cmd.Add(env, "--cap-add "+cap) } tcpLinkIndex := 0 for _, l := range t.Links { targetName := l.Target.PrivateDomainName() if l.Type.IsHTTP() { cmd.Add(env, "--add-host") cmd.Add(env, fmt.Sprintf("%s:${COREOS_PRIVATE_IPV4}", targetName)) } else { linkContainerName := fmt.Sprintf("%s-pr%d", t.ContainerName(scalingGroup), tcpLinkIndex) cmd.Add(env, fmt.Sprintf("--link %s:%s", linkContainerName, targetName)) tcpLinkIndex++ } } for _, arg := range t.LogDriver.CreateDockerLogArgs(e.options) { cmd.Add(env, arg) } for _, arg := range t.DockerArgs { cmd.Add(env, arg) } if t.User != "" { cmd.Add(env, fmt.Sprintf("--user %s", t.User)) } cmd.Add(nil, image) if t.Type == "proxy" { cmd.Add(nil, "sleep 36500d") } for _, arg := range t.Args { cmd.Add(env, arg) } return cmd, nil }