// Init initializes the command for running.
func (c *BootstrapCommand) Init(args []string) error {
if len(c.EnvConfig) == 0 {
return cmdutil.RequiredError("model-config")
}
if c.InstanceId == "" {
return cmdutil.RequiredError("instance-id")
}
if !names.IsValidUser(c.AdminUsername) {
return errors.Errorf("%q is not a valid username", c.AdminUsername)
}
return c.AgentConf.CheckArgs(args)
}
// Init initializes the command for running.
func (a *UnitAgent) Init(args []string) error {
if a.UnitName == "" {
return cmdutil.RequiredError("unit-name")
}
if !names.IsValidUnit(a.UnitName) {
return fmt.Errorf(`--unit-name option expects "<service>/<n>" argument`)
}
if err := a.AgentConf.CheckArgs(args); err != nil {
return err
}
a.runner = worker.NewRunner(cmdutil.IsFatal, cmdutil.MoreImportant, worker.RestartDelay)
if !a.logToStdErr {
if err := a.ReadConfig(a.Tag().String()); err != nil {
return err
}
agentConfig := a.CurrentConfig()
// the writer in ctx.stderr gets set as the loggo writer in github.com/juju/cmd/logging.go
a.ctx.Stderr = &lumberjack.Logger{
Filename: agent.LogFilename(agentConfig),
MaxSize: 300, // megabytes
MaxBackups: 2,
}
}
return nil
}
// CheckArgs reports whether the given args are valid for this agent.
func (c *agentConf) CheckArgs(args []string) error {
if c.dataDir == "" {
return util.RequiredError("data-dir")
}
return cmd.CheckEmpty(args)
}