func (_ *File) RenderLocal(t *local.LocalTarget, a, e, changes *File) error {
dirMode := os.FileMode(0755)
fileMode, err := fi.ParseFileMode(fi.StringValue(e.Mode), 0644)
if err != nil {
return fmt.Errorf("invalid file mode for %q: %q", e.Path, fi.StringValue(e.Mode))
}
if a != nil {
if e.IfNotExists {
glog.V(2).Infof("file exists and IfNotExists set; skipping %q", e.Path)
return nil
}
}
changed := false
if e.Type == FileType_Symlink {
if changes.Symlink != nil {
// This will currently fail if the target already exists.
// That's probably a good thing for now ... it is hard to know what to do here!
glog.Infof("Creating symlink %q -> %q", e.Path, *changes.Symlink)
err := os.Symlink(*changes.Symlink, e.Path)
if err != nil {
return fmt.Errorf("error creating symlink %q -> %q: %v", e.Path, *changes.Symlink, err)
}
changed = true
}
} else if e.Type == FileType_Directory {
if a == nil {
parent := filepath.Dir(strings.TrimSuffix(e.Path, "/"))
err := os.MkdirAll(parent, dirMode)
if err != nil {
return fmt.Errorf("error creating parent directories %q: %v", parent, err)
}
err = os.MkdirAll(e.Path, fileMode)
if err != nil {
return fmt.Errorf("error creating directory %q: %v", e.Path, err)
}
changed = true
}
} else if e.Type == FileType_File {
if changes.Contents != nil {
err = fi.WriteFile(e.Path, e.Contents, fileMode, dirMode)
if err != nil {
return fmt.Errorf("error copying file %q: %v", e.Path, err)
}
changed = true
}
} else {
return fmt.Errorf("File type=%q not valid/supported", e.Type)
}
if changes.Mode != nil {
modeChanged, err := fi.EnsureFileMode(e.Path, fileMode)
if err != nil {
return fmt.Errorf("error changing mode on %q: %v", e.Path, err)
}
changed = changed || modeChanged
}
if changes.Owner != nil || changes.Group != nil {
ownerChanged, err := fi.EnsureFileOwner(e.Path, fi.StringValue(e.Owner), fi.StringValue(e.Group))
if err != nil {
return fmt.Errorf("error changing owner/group on %q: %v", e.Path, err)
}
changed = changed || ownerChanged
}
if changed && e.OnChangeExecute != nil {
args := e.OnChangeExecute
human := strings.Join(args, " ")
glog.Infof("Changed; will execute OnChangeExecute command: %q", human)
cmd := exec.Command(args[0], args[1:]...)
output, err := cmd.CombinedOutput()
if err != nil {
return fmt.Errorf("error executing command %q: %v\nOutput: %s", human, err, output)
}
}
return nil
}
func (_ *Service) RenderLocal(t *local.LocalTarget, a, e, changes *Service) error {
serviceName := e.Name
action := ""
if changes.Running != nil && fi.BoolValue(e.ManageState) {
if fi.BoolValue(e.Running) {
action = "restart"
} else {
action = "stop"
}
}
if changes.Definition != nil {
servicePath := path.Join(systemdSystemPath, serviceName)
err := fi.WriteFile(servicePath, fi.NewStringResource(*e.Definition), 0644, 0755)
if err != nil {
return fmt.Errorf("error writing systemd service file: %v", err)
}
glog.Infof("Reloading systemd configuration")
cmd := exec.Command("systemctl", "daemon-reload")
output, err := cmd.CombinedOutput()
if err != nil {
return fmt.Errorf("error doing systemd daemon-reload: %v\nOutput: %s", err, output)
}
}
// "SmartRestart" - look at the obvious dependencies in the systemd service, restart if start time older
if fi.BoolValue(e.ManageState) && fi.BoolValue(e.SmartRestart) {
definition := fi.StringValue(e.Definition)
if definition == "" && a != nil {
definition = fi.StringValue(a.Definition)
}
if action == "" && fi.BoolValue(e.Running) && definition != "" {
dependencies, err := getSystemdDependencies(serviceName, definition)
if err != nil {
return err
}
var newest time.Time
for _, dependency := range dependencies {
stat, err := os.Stat(dependency)
if err != nil {
glog.Infof("Ignoring error checking service dependency %q: %v", dependency, err)
continue
}
modTime := stat.ModTime()
if newest.IsZero() || newest.Before(modTime) {
newest = modTime
}
}
if !newest.IsZero() {
properties, err := getSystemdStatus(e.Name)
if err != nil {
return err
}
startedAt := properties["ExecMainStartTimestamp"]
if startedAt == "" {
glog.Warningf("service was running, but did not have ExecMainStartTimestamp: %q", serviceName)
} else {
startedAtTime, err := time.Parse("Mon 2006-01-02 15:04:05 MST", startedAt)
if err != nil {
return fmt.Errorf("unable to parse service ExecMainStartTimestamp: %q", startedAt)
}
if startedAtTime.Before(newest) {
glog.V(2).Infof("will restart service %q because dependency changed after service start", serviceName)
action = "restart"
} else {
glog.V(2).Infof("will not restart service %q - started after dependencies", serviceName)
}
}
}
}
}
if action != "" && fi.BoolValue(e.ManageState) {
glog.Infof("Restarting service %q", serviceName)
cmd := exec.Command("systemctl", action, serviceName)
output, err := cmd.CombinedOutput()
if err != nil {
return fmt.Errorf("error doing systemd %s %s: %v\nOutput: %s", action, serviceName, err, output)
}
}
return nil
}