// DestroyUnits removes a given set of application units.
func (api *API) DestroyUnits(args params.DestroyApplicationUnits) error {
if err := api.checkCanWrite(); err != nil {
return err
}
if err := api.check.RemoveAllowed(); err != nil {
return errors.Trace(err)
}
var errs []string
for _, name := range args.UnitNames {
unit, err := api.backend.Unit(name)
switch {
case errors.IsNotFound(err):
err = errors.Errorf("unit %q does not exist", name)
case err != nil:
case unit.Life() != state.Alive:
continue
case unit.IsPrincipal():
err = unit.Destroy()
default:
err = errors.Errorf("unit %q is a subordinate", name)
}
if err != nil {
errs = append(errs, err.Error())
}
}
return common.DestroyErr("units", args.UnitNames, errs)
}
func (s *errorsSuite) TestDestroyErr(c *gc.C) {
errs := []string{
"error one",
"error two",
"error three",
}
ids := []string{
"id1",
"id2",
"id3",
}
c.Assert(common.DestroyErr("entities", ids, nil), jc.ErrorIsNil)
err := common.DestroyErr("entities", ids, errs)
c.Assert(err, gc.ErrorMatches, "no entities were destroyed: error one; error two; error three")
err = common.DestroyErr("entities", ids, errs[1:])
c.Assert(err, gc.ErrorMatches, "some entities were not destroyed: error two; error three")
}
// DestroyServiceUnits removes a given set of service units.
func (c *Client) DestroyServiceUnits(args params.DestroyServiceUnits) error {
if err := c.check.RemoveAllowed(); err != nil {
return errors.Trace(err)
}
var errs []string
for _, name := range args.UnitNames {
unit, err := c.api.stateAccessor.Unit(name)
switch {
case errors.IsNotFound(err):
err = fmt.Errorf("unit %q does not exist", name)
case err != nil:
case unit.Life() != state.Alive:
continue
case unit.IsPrincipal():
err = unit.Destroy()
default:
err = fmt.Errorf("unit %q is a subordinate", name)
}
if err != nil {
errs = append(errs, err.Error())
}
}
return common.DestroyErr("units", args.UnitNames, errs)
}