func (v *RabbitVersions) PreparationRequired() bool {
toVersion := enforceSemver(v.Desired)
fromVersion := enforceSemver(v.Deployed)
breakingVersion := enforceSemver("3.6.6")
patchUpgrade, _ := version.NewConstraint(fmt.Sprintf("~> %s", fromVersion))
breakingVersionUpgrade, _ := version.NewConstraint(fmt.Sprintf("> %s, <= %s", fromVersion, toVersion))
return breakingVersionUpgrade.Check(breakingVersion) || !patchUpgrade.Check(toVersion)
}
// NewRethinkdb creates a new Rethinkdb database adaptor
func NewRethinkdb(p *pipe.Pipe, path string, extra Config) (StopStartListener, error) {
var (
conf rethinkDbConfig
err error
)
if err = extra.Construct(&conf); err != nil {
return nil, err
}
u, err := url.Parse(conf.URI)
if err != nil {
return nil, err
}
if conf.Debug {
fmt.Printf("rethinkDbConfig: %#v\n", conf)
}
r := &Rethinkdb{
uri: u,
pipe: p,
path: path,
tail: conf.Tail,
}
r.database, r.table, err = extra.splitNamespace()
if err != nil {
return r, err
}
r.debug = conf.Debug
opts := gorethink.ConnectOpts{
Address: r.uri.Host,
MaxIdle: 10,
Timeout: time.Second * 10,
}
if conf.Timeout > 0 {
opts.Timeout = time.Duration(conf.Timeout) * time.Second
}
r.client, err = gorethink.Connect(opts)
if err != nil {
return r, err
}
r.client.Use(r.database)
if r.tail {
constraint, _ := version.NewConstraint(">= 1.16")
if err := r.assertServerVersion(constraint); err != nil {
return r, err
}
}
return r, nil
}
func Constraint(constraint, version string) bool {
c, err := semver.NewConstraint(constraint)
if err != nil {
idl.Err(err)
return false
}
v, err := semver.NewVersion(version)
if err != nil {
idl.Debug(err)
return false
}
return c.Check(v)
}
func CheckDockerVersion(t Target) (res Result) {
res.Name = "1.5 Keep Docker up to date"
verConstr := os.Getenv("VERSION")
info, err := t.Client.ServerVersion()
if err != nil {
log.Fatalf("Could not retrieve info for Docker host")
}
constraints, _ := version.NewConstraint(">= " + verConstr)
hostVersion, _ := version.NewVersion(info.Version)
if constraints.Check(hostVersion) {
res.Pass()
} else {
output := fmt.Sprintf("Host is using an outdated Docker server: %s ",
info.Version)
res.Fail(output)
}
return
}
func CheckKernelVersion(t Target) (res Result) {
res.Name = "1.2 Use the updated Linux Kernel"
info := t.Info
constraints, _ := version.NewConstraint(">= 3.10")
hostVersion, err := version.NewVersion(info.KernelVersion)
if err != nil {
// necessary fix for incompatible kernel versions (e.g. Fedora 23)
log.Print("Incompatible kernel version")
output := "Incompatible kernel version reported"
res.Info(output)
return
}
if constraints.Check(hostVersion) {
res.Pass()
} else {
output := fmt.Sprintf("Host is not using an updated kernel: %s",
info.KernelVersion)
res.Fail(output)
}
return
}
func main() {
config := config.New()
apiConfig, err := config.Registry.Config()
if err != nil {
log.Fatal(err.Error())
}
kv, err := consul.NewKV(apiConfig)
if err != nil {
log.Fatal(err.Error())
}
consul := consul.NewConsul(kv, config.Registry.Prefix)
// set up initial sync
remote, err := config.Marathon.NewMarathon()
if err != nil {
log.Fatal(err.Error())
}
sync := marathon.NewMarathonSync(remote, consul)
go sync.Sync()
fh := &ForwardHandler{consul}
v, err := remote.Version()
if err != nil {
log.WithError(err).Warn("version parsing failed, assuming >= 0.9.0")
v, _ = version.NewVersion("0.9.0")
}
minVersion, _ := version.NewConstraint(">= 0.9.0")
if minVersion.Check(v) {
log.WithField("version", v).Info("detected Marathon events endpoint")
SubscribeToEventStream(config, remote, fh)
} else {
log.WithField("version", v).Info("detected old Marathon version -- make sure to set up an eventSubscription for this process")
ServeWebhookReceiver(config, fh)
}
}
// gitPreflight is the pre-flight command that runs for Git-based VCSs
func gitPreflight(path string) error {
var stderr, stdout bytes.Buffer
cmd := exec.Command("git", "--version")
cmd.Dir = path
cmd.Stdout = &stdout
cmd.Stderr = &stderr
if err := cmd.Run(); err != nil {
return fmt.Errorf("error getting git version: %s\nstdout: %s\nstderr: %s",
err, stdout.String(), stderr.String())
}
// Check if the output is valid
output := strings.Split(strings.TrimSpace(stdout.String()), " ")
if len(output) < 1 {
log.Printf("[WARN] could not extract version output from Git")
return nil
}
// Parse the version
gitv, err := version.NewVersion(output[len(output)-1])
if err != nil {
log.Printf("[WARN] could not parse version output from Git")
return nil
}
constraint, err := version.NewConstraint("> 1.8")
if err != nil {
log.Printf("[WARN] could not create version constraint to check")
return nil
}
if !constraint.Check(gitv) {
return fmt.Errorf("git version (%s) is too old, please upgrade", gitv.String())
}
return nil
}
// NewRethinkdb creates a new Rethinkdb database adaptor
func NewRethinkdb(p *pipe.Pipe, path string, extra Config) (StopStartListener, error) {
var (
conf rethinkDbConfig
err error
)
if err = extra.Construct(&conf); err != nil {
return nil, err
}
u, err := url.Parse(conf.URI)
if err != nil {
return nil, err
}
if conf.Debug {
fmt.Printf("RethinkDB Config %+v\n", conf)
}
r := &Rethinkdb{
uri: u,
pipe: p,
path: path,
tail: conf.Tail,
}
r.database, r.tableMatch, err = extra.compileNamespace()
if err != nil {
return r, err
}
r.debug = conf.Debug
if r.debug {
fmt.Printf("tableMatch: %+v\n", r.tableMatch)
}
// test the connection with a timeout
testConn, err := gorethink.Connect(gorethink.ConnectOpts{
Address: r.uri.Host,
Timeout: time.Second * 10,
})
if err != nil {
return r, err
}
testConn.Close()
// we don't want a timeout here because we want to keep connections open
r.client, err = gorethink.Connect(gorethink.ConnectOpts{
Address: r.uri.Host,
MaxIdle: 10,
})
if err != nil {
return r, err
}
r.client.Use(r.database)
constraint, _ := version.NewConstraint(">= 2.0")
if err := r.assertServerVersion(constraint); err != nil {
return r, err
}
return r, nil
}
func getLatestVersionMatchingPattern(repo string, versionPattern string) (string, error) {
repoPath, err := getPackageRootDir(repo)
if err != nil {
return "", errors.Trace(err)
}
if exists, _ := pathExists(repoPath); !exists {
return versionPattern, nil
}
wd, err := os.Getwd()
if err != nil {
return "", errors.Trace(err)
}
err = os.Chdir(repoPath)
if err != nil {
return "", errors.Trace(err)
}
defer func() {
_ = os.Chdir(wd)
}()
var repoType string
if exists, _ := pathExists(".git"); exists {
repoType = "git"
} else if exists, _ := pathExists(".hg"); exists {
repoType = "hg"
} else if exists, _ := pathExists(".bzr"); exists {
repoType = "bzr"
} else {
return versionPattern, nil
}
if versionPattern == "" {
if repoType == "git" {
return "master", nil
} else if repoType == "hg" {
return "tip", nil
} else if repoType == "bzr" {
return "", nil
}
}
if repoType == "hg" || repoType == "bzr" {
return versionPattern, nil
}
// first, try feeding it through git to see if it's a valid rev
gitResolveCommand := []string{"git", "rev-parse", "-q", "--verify", versionPattern}
output, err := exec.Command(gitResolveCommand[0], gitResolveCommand[1:]...).Output()
if err != nil {
if _, ok := err.(*exec.ExitError); !ok {
return "", errors.Trace(err)
}
}
gitResolvedString := strings.TrimSpace(string(output))
if gitResolvedString != "" {
return gitResolvedString, nil
}
// second, try parsing it
tagListB, err := exec.Command("git", "tag").Output()
if err != nil {
return "", errors.Trace(err)
}
versionToTag := make(map[*version.Version]string)
tagList := strings.Split(strings.TrimSpace(string(tagListB)), "\n")
processedTagList := make([]*version.Version, len(tagList))
for i, tag := range tagList {
stringVersion := tag
if strings.HasPrefix(tag, "v") {
stringVersion = strings.Replace(tag, "v", "", 1)
}
v, err := version.NewVersion(stringVersion)
if err != nil {
continue
}
processedTagList[i] = v
versionToTag[v] = tag
}
sort.Sort(version.Collection(processedTagList))
constraints, err := version.NewConstraint(versionPattern)
if err != nil {
return "", errors.Trace(err)
}
var resultVersion string
for i := len(processedTagList) - 1; i >= 0; i-- {
ver := processedTagList[i]
if constraints.Check(ver) {
resultVersion = versionToTag[ver]
}
}
if resultVersion == "" {
return "", fmt.Errorf("unable to find a version matching constraint %s for package %s", versionPattern, repo)
}
gitResolveCommand = []string{"git", "rev-parse", "-q", "--verify", resultVersion}
output, err = exec.Command(gitResolveCommand[0], gitResolveCommand[1:]...).Output()
if err != nil {
return "", errors.Trace(err)
} else {
return strings.TrimSpace(string(output)), nil
}
}