// deploy will deploy the supplied unit with the deployer's manager. It will
// panic if it observes inconsistent internal state.
func (d *Deployer) deploy(unit *state.Unit) error {
unitName := unit.Name()
if d.deployed.Contains(unit.Name()) {
panic("must not re-deploy a deployed unit")
}
logger.Infof("deploying unit %q", unit)
initialPassword, err := utils.RandomPassword()
if err != nil {
return err
}
if err := unit.SetPassword(initialPassword); err != nil {
return fmt.Errorf("cannot set password for unit %q: %v", unit, err)
}
if err := unit.SetMongoPassword(initialPassword); err != nil {
return fmt.Errorf("cannot set mongo password for unit %q: %v", unit, err)
}
if err := d.ctx.DeployUnit(unitName, initialPassword); err != nil {
return err
}
d.deployed.Add(unitName)
return nil
}