func (s *Service) prepareNodesAsJsonMap() {
if s.manifest.Nodes == nil || len(s.manifest.Nodes.([]interface{})) == 0 {
logs.WithFields(s.fields).Warn("No nodes defined in service")
return
}
tmpRes, err := utils.TransformYamlToJson(s.manifest.Nodes)
var res []interface{} = tmpRes.([]interface{})
if err != nil {
logs.WithEF(err, s.fields).Fatal("Cannot transform yaml to json")
}
if res[0].(map[string]interface{})[NODE_HOSTNAME].(string) == "*" {
if len(res) > 1 {
logs.WithFields(s.fields).Fatal("You cannot mix all nodes with single node. Yet ?")
}
newNodes := *new([]interface{})
machines, err := s.env.ListMachineNames()
if err != nil {
logs.WithEF(err, s.fields).Fatal("Cannot list machines to generate units")
}
for _, machine := range machines {
node := utils.CopyMap(res[0].(map[string]interface{}))
node[NODE_HOSTNAME] = machine
newNodes = append(newNodes, node)
}
res = newNodes
}
s.nodesAsJsonMap = res
}
func (u *Unit) Update(command string) error {
if err := u.Service.Generate(); err != nil {
logs.WithEF(err, u.Fields).Fatal("Generate failed")
}
logs.WithFields(u.Fields).Debug("Update")
u.runHook(EARLY, command, "update")
defer u.runHook(LATE, command, "update")
u.Service.Lock(command, 1*time.Hour, "Update "+u.Name)
defer u.Service.Unlock(command)
same, err := u.IsLocalContentSameAsRemote()
if err != nil {
logs.WithEF(err, u.Fields).Warn("Cannot compare local and remote service")
}
if same {
logs.WithFields(u.Fields).Info("Remote service is already up to date")
if !u.IsRunning() {
logs.WithFields(u.Fields).Info("But service is not running")
} else if !BuildFlags.Force {
return nil
}
}
u.UpdateInside(command)
return nil
}
func (p *Pod) Push() {
logs.WithF(p.fields).Info("Pushing")
p.Build()
checkVersion := make(chan bool, 1)
for _, e := range p.manifest.Pod.Apps {
aci, err := NewAciWithManifest(p.path+"/"+e.Name, p.args, p.toAciManifest(e), &checkVersion)
if err != nil {
logs.WithEF(err, p.fields.WithField("name", e.Name)).Fatal("Cannot prepare aci")
}
aci.podName = &p.manifest.Name
aci.Push()
}
for range p.manifest.Pod.Apps {
<-checkVersion
}
if err := utils.ExecCmd("curl", "-i",
"-F", "r=releases",
"-F", "hasPom=false",
"-F", "e=pod",
"-F", "g=com.blablacar.aci.linux.amd64",
"-F", "p=pod",
"-F", "v="+p.manifest.Name.Version(),
"-F", "a="+p.manifest.Name.ShortName(),
"-F", "file=@"+p.target+"/pod-manifest.json",
"-u", cnt.Home.Config.Push.Username+":"+cnt.Home.Config.Push.Password,
cnt.Home.Config.Push.Url+"/service/local/artifact/maven/content"); err != nil {
logs.WithEF(err, p.fields).Fatal("Cannot push pod")
}
}
func (s *Service) runNotify() {
s.runNotifyMutex.Lock()
defer s.runNotifyMutex.Unlock()
s.giveUpWarmup()
if s.currentStatus == nil {
logs.WithF(s.fields).Info("No status to notify")
return
}
if (*s.currentStatus == nil && s.disabled == nil) || s.forceEnable {
logs.WithF(s.fields).Info("Service is available")
if len(s.PreAvailableCommand) > 0 {
if err := ExecCommand(s.PreAvailableCommand, s.PreAvailableMaxDurationInMilli); err != nil {
s.nerve.execFailureCount.WithLabelValues(s.Name, "pre-available", s.Host, strconv.Itoa(s.Port)).Inc()
logs.WithEF(err, s.fields).Warn("Pre available command failed")
}
}
s.warmup()
} else {
if !s.NoMetrics {
s.nerve.availableGauge.WithLabelValues(s.Name, s.Host, strconv.Itoa(s.Port)).Set(0)
}
s.currentWeightIndex = 0
logs.WithEF(*s.currentStatus, s.fields).Warn("Service is not available")
s.reportAndTellIfAtLeastOneReported(true)
}
}
func NewHome(path string) HomeStruct {
logs.WithField("path", path).Debug("Loading home")
var config Config
if source, err := ioutil.ReadFile(path + "/config.yml"); err == nil {
err = yaml.Unmarshal([]byte(source), &config)
if err != nil {
logs.WithEF(err, data.WithField("path", path+"/config.yml")).Fatal("Failed to process configuration file")
}
} else if source, err := ioutil.ReadFile(DefaultHomeFolder("cnt") + "/config.yml"); err == nil {
logs.WithField("old", DefaultHomeFolder("cnt")+"/config.yml").WithField("new", DefaultHomeFolder("")).Warn("You are using old home folder")
err = yaml.Unmarshal([]byte(source), &config)
if err != nil {
logs.WithEF(err, data.WithField("path", path+"/config.yml")).Fatal("Failed to process configuration file")
}
}
if Args.NoStore {
config.Rkt.NoStore = true
}
if Args.StoreOnly {
config.Rkt.StoreOnly = true
}
rkt, err := common.NewRktClient(config.Rkt)
if err != nil {
logs.WithEF(err, data.WithField("config", config.Rkt)).Fatal("Rkt access failed")
}
return HomeStruct{
path: path,
Config: config,
Rkt: rkt,
}
}
func (c *CheckCommon) CommonRun(checker Checker, statusChange chan<- Check, stop <-chan struct{}, doneWait *sync.WaitGroup) {
logs.WithF(c.fields).Info("Starting check")
doneWait.Add(1)
defer doneWait.Done()
for {
status := checker.Check()
if logs.IsTraceEnabled() {
logs.WithEF(status, c.fields).Trace("Check done")
}
if status != nil {
logs.WithEF(status, c.fields).Debug("Failed check")
}
if status != nil && !c.service.NoMetrics {
c.service.nerve.checkerFailureCount.WithLabelValues(c.service.Name, c.Host, strconv.Itoa(c.Port), c.Type).Inc()
}
c.saveStatus(status)
current := c.stableStatus
latest := c.latestStatuses
if (latest[0] == nil && sameLastStatusCount(latest) >= c.Rise && (current == nil || *current != nil)) ||
(latest[0] != nil && sameLastStatusCount(latest) >= c.Fall && (current == nil || *current == nil)) {
c.stableStatus = &status
statusChange <- Check{checker, *c.stableStatus}
}
select {
case <-stop:
logs.WithFields(c.fields).Debug("Stopping check")
return
case <-time.After(time.Duration(c.CheckIntervalInMilli) * time.Millisecond):
}
}
}
func (s *Service) Lock(command string, ttl time.Duration, message string) {
userAndHost := "[" + ggn.GetUserAndHost() + "] "
message = userAndHost + message
logs.WithFields(s.fields).WithField("ttl", ttl).WithField("message", message).Info("Locking")
s.runHook(EARLY, command, "lock")
defer s.runHook(LATE, command, "lock")
kapi := s.env.EtcdClient()
resp, err := kapi.Get(context.Background(), s.lockPath, nil)
if cerr, ok := err.(*client.ClusterError); ok {
logs.WithEF(cerr, s.fields).Fatal("Server error reading on fleet")
} else if err != nil {
_, err := kapi.Set(context.Background(), s.lockPath, message, &client.SetOptions{TTL: ttl})
if err != nil {
logs.WithEF(cerr, s.fields).Fatal("Cannot write lock")
}
} else if strings.HasPrefix(resp.Node.Value, userAndHost) {
_, err := kapi.Set(context.Background(), s.lockPath, message, &client.SetOptions{TTL: ttl})
if err != nil {
logs.WithEF(cerr, s.fields).Fatal("Cannot write lock")
}
} else {
logs.WithFields(s.fields).WithField("message", resp.Node.Value).
WithField("ttl", resp.Node.TTLDuration().String()).
Fatal("Service is already locked")
}
}
func (w Work) ListEnvs() []string {
path := ggn.Home.Config.WorkPath + PATH_ENV
if _, err := os.Stat(path); os.IsNotExist(err) {
logs.WithEF(err, w.fields).WithField("path", path).Fatal("env directory not found")
}
files, err := ioutil.ReadDir(path)
if err != nil {
logs.WithEF(err, w.fields).WithField("path", path).Fatal("Cannot read env directory")
}
var envs []string
for _, file := range files {
if file.Mode()&os.ModeSymlink == os.ModeSymlink {
followed_file, err := os.Readlink(path + "/" + file.Name())
if err != nil {
continue
}
if followed_file[0] != '/' {
followed_file = path + "/" + followed_file
}
file, err = os.Lstat(followed_file)
if err != nil {
continue
}
logs.WithField("followed_link", file.Name()).Trace("Followed Link")
}
if !file.IsDir() {
continue
}
envs = append(envs, file.Name())
}
return envs
}
func (e *Env) loadAttributes() {
files, err := utils.AttributeFiles(e.path + PATH_ATTRIBUTES)
if err != nil {
logs.WithEF(err, e.fields).WithField("path", e.path+PATH_ATTRIBUTES).Fatal("Cannot load attribute files")
}
files, err = e.addIncludeFiles(files)
if err != nil {
logs.WithEF(err, e.fields).WithField("path", e.path+PATH_ATTRIBUTES).Fatal("Cannot load include files")
}
e.attributes = attributes.MergeAttributesFiles(files)
logs.WithFields(e.fields).WithField("attributes", e.attributes).Debug("Attributes loaded")
}
func (w *WatcherZookeeper) watchNode(node string, stop <-chan struct{}, doneWaiter *sync.WaitGroup) {
doneWaiter.Add(1)
defer doneWaiter.Done()
fields := w.fields.WithField("node", node)
logs.WithF(fields).Debug("New node watcher")
for {
content, stats, childEvent, err := w.connection.Conn.GetW(node)
if err != nil {
if err == zk.ErrNoNode {
logs.WithEF(err, fields).Warn("Node disappear before watching")
w.reports.removeNode(node)
return
}
w.service.synapse.watcherFailures.WithLabelValues(w.service.Name, PrometheusLabelWatch).Inc()
logs.WithEF(err, fields).Warn("Failed to watch node, retry in 1s")
<-time.After(time.Duration(1000) * time.Millisecond)
if isStopped(stop) {
return
}
continue
}
w.reports.addRawReport(node, content, fields, stats.Ctime)
//if context.oneshot {
// go func() {
// <-rootEvents
// }()
// return
//}
select {
case e := <-childEvent:
logs.WithF(fields.WithField("event", e)).Trace("Receiving event from node")
switch e.Type {
case zk.EventNodeDataChanged | zk.EventNodeCreated | zk.EventNotWatching:
// loop
case zk.EventNodeDeleted:
logs.WithF(fields).Debug("Node deleted")
w.reports.removeNode(node)
return
}
case <-stop:
return
}
}
}
func (aci *Aci) RunBuilderCommand(command common.BuilderCommand) error {
defer aci.giveBackUserRightsToTarget()
logs.WithF(aci.fields).Info("Building")
if err := os.MkdirAll(aci.target, 0777); err != nil {
return errs.WithEF(err, aci.fields, "Cannot create target directory")
}
if err := ioutil.WriteFile(aci.target+common.PathManifestYmlTmpl, []byte(aci.manifestTmpl), 0644); err != nil {
return errs.WithEF(err, aci.fields.WithField("file", aci.target+common.PathManifestYmlTmpl), "Failed to write manifest template")
}
stage1Hash, err := aci.prepareStage1aci()
if err != nil {
return errs.WithEF(err, aci.fields, "Failed to prepare stage1 image")
}
builderHash, err := aci.prepareBuildAci()
if err != nil {
return errs.WithEF(err, aci.fields, "Failed to prepare build image")
}
logs.WithF(aci.fields).Info("Calling rkt to start build")
defer aci.cleanupRun(builderHash, stage1Hash)
if err := Home.Rkt.Run(aci.prepareRktRunArguments(command, builderHash, stage1Hash)); err != nil {
return errs.WithEF(err, aci.fields, "Builder container return with failed status")
}
content, err := common.ExtractManifestContentFromAci(aci.target + pathImageAci)
if err != nil {
logs.WithEF(err, aci.fields).Warn("Failed to write manifest.json")
}
if err := ioutil.WriteFile(aci.target+pathManifestJson, content, 0644); err != nil {
logs.WithEF(err, aci.fields).Warn("Failed to write manifest.json")
}
im := &schema.ImageManifest{}
if err = im.UnmarshalJSON(content); err != nil {
return errs.WithEF(err, aci.fields.WithField("content", string(content)), "Cannot unmarshall json content")
}
fullname := common.ExtractNameVersionFromManifest(im)
logs.WithField("fullname", *fullname).Info("Finished building aci")
if err := ioutil.WriteFile(aci.target+pathVersion, []byte(*fullname), 0644); err != nil {
return errs.WithEF(err, aci.fields, "Failed to write version file in target")
}
return nil
}
func (s *Service) loadAttributes() {
attr := utils.CopyMap(s.env.GetAttributes())
files, err := utils.AttributeFiles(s.path + PATH_ATTRIBUTES)
if err != nil {
logs.WithEF(err, s.fields).WithField("path", s.path+PATH_ATTRIBUTES).Fatal("Cannot load Attributes files")
}
files, err = s.addIncludeFiles(files)
if err != nil {
logs.WithEF(err, s.fields).WithField("path", s.path+PATH_ATTRIBUTES).Fatal("Cannot load include files")
}
attr = attributes.MergeAttributesFilesForMap(attr, files)
s.attributes = attr
logs.WithFields(s.fields).WithField("attributes", s.attributes).Debug("Attributes loaded")
}
func (u *Unit) Generate(tmpl *template.Templating) error {
u.generatedMutex.Lock()
defer u.generatedMutex.Unlock()
if u.generated {
return nil
}
logs.WithFields(u.Fields).Debug("Generate")
data := u.GenerateAttributes()
aciList, err := u.Service.PrepareAcis()
if err != nil {
return err
}
acis := ""
for _, aci := range aciList {
acis += aci + " "
}
data["aciList"] = aciList
data["acis"] = acis
out, err := json.Marshal(data)
if err != nil {
logs.WithEF(err, u.Fields).Panic("Cannot marshall attributes")
}
res := strings.Replace(string(out), "\\\"", "\\\\\\\"", -1)
res = strings.Replace(res, "'", `\'`, -1)
data["attributes"] = res
data["attributesBase64"] = "base64," + base64.StdEncoding.EncodeToString([]byte(out))
data["environmentAttributes"], data["environmentAttributesVars"] = u.prepareEnvironmentAttributes(data["attributes"].(string), "ATTR_")
data["environmentAttributesBase64"], data["environmentAttributesVarsBase64"] = u.prepareEnvironmentAttributes(data["attributesBase64"].(string), "ATTR_BASE64_")
var b bytes.Buffer
err = tmpl.Execute(&b, data)
if err != nil {
logs.WithEF(err, u.Fields).Error("Failed to run templating")
}
ok, err := utils.Exists(u.path)
if !ok || err != nil {
os.Mkdir(u.path, 0755)
}
err = ioutil.WriteFile(u.path+"/"+u.Filename, b.Bytes(), 0644)
if err != nil {
logs.WithEF(err, u.Fields).WithField("path", u.path+"/"+u.Filename).Error("Cannot writer unit")
}
u.generated = true
return nil
}
func (p *Pod) buildAci(e spec.RuntimeApp) *Aci {
path := p.path + "/" + e.Name
if dir, err := os.Stat(path); err != nil || !dir.IsDir() {
if err := os.Mkdir(path, 0777); err != nil {
logs.WithEF(err, p.fields).WithField("path", path).Fatal("Cannot created pod's aci directory")
}
}
aci, err := NewAciWithManifest(p.path+"/"+e.Name, p.args, p.toAciManifest(e), nil)
if err != nil {
logs.WithEF(err, p.fields).WithField("aci", path).Fatal("Failed to prepare aci")
}
aci.podName = &p.manifest.Name
aci.Build()
return aci
}
func (e Env) Fleetctl(args []string) {
logs.WithFields(e.fields).Debug("Running fleetctl")
err := e.RunFleetCmd(args...)
if err != nil {
logs.WithEF(err, e.fields).Error("Fleetctl command failed")
}
}
func (aci *Aci) Clean() {
logs.WithF(aci.fields).Debug("Cleaning")
if err := os.RemoveAll(aci.target + "/"); err != nil {
logs.WithEF(err, aci.fields).WithField("dir", aci.target).Warn("Cannot remove directory")
}
}
func (aci *Aci) copyAttributes() {
files, err := utils.AttributeFiles(aci.path + PATH_ATTRIBUTES)
if err != nil {
logs.WithEF(err, aci.fields).Fatal("Cannot read attribute files")
}
for _, file := range files {
targetPath := aci.rootfs + PATH_CNT + PATH_ATTRIBUTES + "/" + aci.manifest.NameAndVersion.ShortName()
err = os.MkdirAll(targetPath, 0755)
if err != nil {
logs.WithEF(err, aci.fields.WithField("path", targetPath)).Fatal("Cannot create target attribute directory")
}
if err := utils.CopyFile(file, targetPath+"/"+filepath.Base(file)); err != nil {
logs.WithEF(err, aci.fields.WithField("file", file)).Fatal("Cannot copy attribute file")
}
}
}
func (b *Builder) tarAci() error {
upperId, err := b.upperTreeStoreId()
if err != nil {
return err
}
upperPath := b.pod.Root + PATH_OVERLAY + "/" + upperId + PATH_UPPER
upperNamedRootfs := upperPath + "/" + manifestApp(b.pod).Name.String()
upperRootfs := upperPath + common.PathRootfs
if err := os.Rename(upperNamedRootfs, upperRootfs); err != nil { // TODO this is dirty and can probably be renamed during tar
return errs.WithEF(err, b.fields.WithField("path", upperNamedRootfs), "Failed to rename rootfs")
}
defer os.Rename(upperRootfs, upperNamedRootfs)
dir, err := os.Getwd()
if err != nil {
return errs.WithEF(err, b.fields, "Failed to get current working directory")
}
defer func() {
if err := os.Chdir(dir); err != nil {
logs.WithEF(err, b.fields.WithField("path", dir)).Warn("Failed to chdir back")
}
}()
if err := os.Chdir(upperPath); err != nil {
return errs.WithEF(err, b.fields.WithField("path", upperPath), "Failed to chdir to upper base path")
}
if err := common.Tar(b.aciTargetPath+common.PathImageAci, common.PathManifest[1:], common.PathRootfs[1:]+"/"); err != nil {
return errs.WithEF(err, b.fields, "Failed to tar aci")
}
logs.WithField("path", dir).Debug("chdir")
return nil
}
func (e Env) ListUnits() map[string]UnitStatus {
mutex.Lock()
defer mutex.Unlock()
if statusCache != nil {
return statusCache
}
stdout, _, err := e.RunFleetCmdGetOutput("list-units", "-no-legend")
if err != nil {
logs.WithEF(err, e.fields).Debug("Cannot list units")
}
var lines []string
scanner := bufio.NewScanner(strings.NewReader(stdout))
for scanner.Scan() {
lines = append(lines, scanner.Text())
}
status := make(map[string]UnitStatus)
for _, line := range lines {
split := strings.Fields(line)
status[split[0]] = UnitStatus{Unit: split[0], Machine: split[1], Active: split[2], Sub: split[3]}
}
statusCache = status
return status
}
func (r *RouterHaProxy) Update(serviceReports []ServiceReport) error {
reloadNeeded := r.socketPath == ""
for _, report := range serviceReports {
front, back, err := r.toFrontendAndBackend(report)
if err != nil {
return errs.WithEF(err, r.RouterCommon.fields.WithField("report", report), "Failed to prepare frontend and backend")
}
r.Frontend[report.Service.Name+"_"+strconv.Itoa(report.Service.id)] = front
r.Backend[report.Service.Name+"_"+strconv.Itoa(report.Service.id)] = back
if !r.isSocketUpdatable(report) {
reloadNeeded = true
}
}
if reloadNeeded {
if err := r.Reload(); err != nil {
return errs.WithEF(err, r.RouterCommon.fields, "Failed to reload haproxy")
}
} else if err := r.SocketUpdate(); err != nil {
r.synapse.routerUpdateFailures.WithLabelValues(r.Type + PrometheusLabelSocketSuffix).Inc()
logs.WithEF(err, r.RouterCommon.fields).Error("Update by Socket failed. Reloading instead")
if err := r.Reload(); err != nil {
return errs.WithEF(err, r.RouterCommon.fields, "Failed to reload haproxy")
}
}
return nil
}
func NewPod(path string, args BuildArgs) (*Pod, error) {
fullPath, err := filepath.Abs(path)
if err != nil {
logs.WithE(err).WithField("path", path).Fatal("Cannot get fullpath")
}
manifest, err := readPodManifest(fullPath + POD_MANIFEST)
if err != nil {
return nil, errors.Annotate(err, "Failed to read pod manifest")
}
fields := data.WithField("pod", manifest.Name.String())
target := path + PATH_TARGET
if cnt.Home.Config.TargetWorkDir != "" {
currentAbsDir, err := filepath.Abs(cnt.Home.Config.TargetWorkDir + "/" + manifest.Name.ShortName())
if err != nil {
logs.WithEF(err, fields).Panic("invalid target path")
}
target = currentAbsDir
}
pod := &Pod{
fields: fields,
path: fullPath,
args: args,
target: target,
manifest: *manifest,
}
return pod, nil
}
func (p *Pod) Install() ([]string, error) {
logs.WithF(p.fields).Info("Installing")
hashs := []string{}
if err := p.CleanAndBuild(); err != nil {
return hashs, err
}
for _, e := range p.manifest.Pod.Apps {
tmpl, err := p.toAciManifestTemplate(e)
if err != nil {
return nil, err
}
aci, err := NewAciWithManifest(p.path+"/"+e.Name, p.args, tmpl, p.checkWg)
if err != nil {
logs.WithEF(err, p.fields.WithField("name", e.Name)).Fatal("Cannot prepare aci")
}
aci.podName = &p.manifest.Name
hash, err := aci.Install()
if err != nil {
return hashs, err
}
hashs = append(hashs, hash...)
}
return hashs, nil
}
func (aci *Aci) cleanupTest(testerHash string, hashAcis []string) {
if !Args.KeepBuilder {
if _, _, err := Home.Rkt.RmFromFile(aci.target + pathTesterUuid); err != nil {
logs.WithEF(err, aci.fields).Warn("Failed to remove test container")
}
}
for _, hash := range hashAcis {
if err := Home.Rkt.ImageRm(hash); err != nil {
logs.WithEF(err, aci.fields.WithField("hash", hash)).Warn("Failed to remove container image")
}
}
if err := Home.Rkt.ImageRm(testerHash); err != nil {
logs.WithEF(err, aci.fields.WithField("hash", testerHash)).Warn("Failed to remove test container image")
}
}
func (aci *Aci) cleanupRun(builderHash string, stage1Hash string) {
if !Args.KeepBuilder {
if _, _, err := Home.Rkt.RmFromFile(aci.target + pathBuilderUuid); err != nil {
logs.WithEF(err, aci.fields).Warn("Failed to remove build container")
}
}
if err := Home.Rkt.ImageRm(builderHash); err != nil {
logs.WithEF(err, aci.fields.WithField("hash", builderHash)).Warn("Failed to remove build container image")
}
if stage1Hash != "" {
if err := Home.Rkt.ImageRm(stage1Hash); err != nil {
logs.WithEF(err, aci.fields.WithField("hash", stage1Hash)).Warn("Failed to remove stage1 container image")
}
}
}
func (s *Service) Diff() {
if err := s.Generate(); err != nil {
logs.WithEF(err, s.fields).Fatal("Generate failed")
}
for _, unitName := range s.ListUnits() {
unit := s.LoadUnit(unitName)
unit.Diff("service/diff")
}
}
func (u *Unit) Ssh(command string) {
logs.WithFields(u.Fields).Debug("ssh")
u.runHook(EARLY, command, "ssh")
defer u.runHook(LATE, command, "ssh")
err := u.Service.GetEnv().RunFleetCmd("ssh", u.Filename)
if err != nil {
logs.WithEF(err, u.Fields).Fatal("Failed to run status")
}
}
func (s *Service) loadManifest() {
manifest := ServiceManifest{}
path := s.manifestPath()
source, err := ioutil.ReadFile(path)
if err != nil {
logs.WithEF(err, s.fields).WithField("path", path).Warn("Cannot find manifest for service")
}
err = yaml.Unmarshal([]byte(source), &manifest)
if err != nil {
logs.WithEF(err, s.fields).Fatal("Cannot Read service manifest")
}
if manifest.ConcurrentUpdater == 0 {
manifest.ConcurrentUpdater = 1
}
logs.WithFields(s.fields).WithField("manifest", manifest).Debug("Manifest loaded")
s.manifest = manifest
}
func (e *Env) loadPartials() {
if ok, err := common.IsDirEmpty(e.path + PATH_TEMPLATES); ok || err != nil {
return
}
tmplDir, err := template.NewTemplateDir(e.path+PATH_TEMPLATES, "", false)
if err != nil {
logs.WithEF(err, e.fields).WithField("path", e.path+PATH_ATTRIBUTES).Fatal("Failed to load partial templating")
}
e.Partials = tmplDir.Partials
}
func (hap *HaProxyClient) SocketUpdate() error {
if hap.socketPath == "" {
return errs.WithF(hap.fields, "No socket file specified. Cannot update")
}
logs.WithF(hap.fields).Debug("Updating haproxy by socket")
if err := hap.writeConfig(); err != nil { // just to stay in sync
logs.WithEF(err, hap.fields).Warn("Failed to write configuration file")
}
conn, err := net.Dial("unix", hap.socketPath)
if err != nil {
return errs.WithEF(err, hap.fields.WithField("socket", hap.socketPath), "Failed to connect to haproxy socket")
}
defer conn.Close()
i := 0
b := bytes.Buffer{}
for name, servers := range hap.Backend {
for _, server := range servers {
res := hap.weightRegex.FindStringSubmatch(server)
if len(res) == 3 {
i++
b.WriteString("set weight " + name + "/" + res[1] + " " + res[2] + "\n")
}
}
}
if b.Len() == 0 {
logs.WithF(hap.fields).Debug("Nothing to update by socket. No weight set")
return nil
}
commands := b.Bytes()
logs.WithF(hap.fields.WithField("command", string(commands))).Trace("Running command on hap socket")
count, err := conn.Write(commands)
if count != len(commands) || err != nil {
return errs.WithEF(err, hap.fields.
WithField("written", count).
WithField("len", len(commands)).
WithField("command", string(commands)), "Failed to write command to haproxy")
}
buff := bufio.NewReader(conn)
line, prefix, err := buff.ReadLine()
if err != nil || prefix {
return errs.WithEF(err, hap.fields.WithField("line-too-long", prefix), "Failed to read hap socket response")
}
if string(line) != "" {
return errs.WithF(hap.fields.WithField("response", string(line)), "Bad response for haproxy socket command")
}
return nil
}
func (e Env) FleetctlListMachines() {
stdout, _, err := e.RunFleetCmdGetOutput("-strict-host-key-checking=false", "list-machines", "--full", "--no-legend")
if err != nil {
logs.WithEF(err, e.fields).Fatal("Failed to list-machines")
}
machines := strings.Split(stdout, "\n")
for _, machine := range machines {
fmt.Println(machine)
}
}
