func (ctx *SimpleContext) RecallUnit(unitName string) error {
svc := ctx.findUpstartJob(unitName)
if svc == nil || !svc.Installed() {
return fmt.Errorf("unit %q is not deployed", unitName)
}
if err := svc.Remove(); err != nil {
return err
}
tag := names.UnitTag(unitName)
agentDir := tools.Dir(ctx.dataDir, tag)
if err := os.RemoveAll(agentDir); err != nil {
return err
}
if err := os.Remove(ctx.syslogConfigPath); err != nil && !os.IsNotExist(err) {
logger.Warningf("installer: cannot remove %q: %v", ctx.syslogConfigPath, err)
}
// Defer this so a failure here does not impede the cleanup (as in tests).
defer func() {
if err := syslog.Restart(); err != nil {
logger.Warningf("installer: cannot restart syslog daemon: %v", err)
}
}()
toolsDir := tools.ToolsDir(ctx.dataDir, tag)
return os.Remove(toolsDir)
}
func (fix *SimpleToolsFixture) paths(tag string) (confPath, agentDir, toolsDir, syslogConfPath string) {
confName := fmt.Sprintf("jujud-%s.conf", tag)
confPath = filepath.Join(fix.initDir, confName)
agentDir = tools.Dir(fix.dataDir, tag)
toolsDir = tools.ToolsDir(fix.dataDir, tag)
syslogConfPath = filepath.Join(fix.syslogConfigDir, fmt.Sprintf("26-juju-%s.conf", tag))
return
}
// ReadConf reads configuration data for the given
// entity from the given data directory.
func ReadConf(dataDir, tag string) (*Conf, error) {
dir := tools.Dir(dataDir, tag)
data, err := ioutil.ReadFile(path.Join(dir, "agent.conf"))
if err != nil {
return nil, err
}
var c Conf
if err := goyaml.Unmarshal(data, &c); err != nil {
return nil, err
}
c.DataDir = dataDir
if err := c.Check(); err != nil {
return nil, err
}
if c.StateInfo != nil {
c.StateInfo.Tag = tag
}
if c.APIInfo != nil {
c.APIInfo.Tag = tag
}
return &c, nil
}
// Dir returns the agent's directory.
func (c *Conf) Dir() string {
return tools.Dir(c.DataDir, c.Tag())
}