Exemplo n.º 1
0
// handleBootstrapError cleans up after a failed bootstrap.
func handleBootstrapError(err error, ctx environs.BootstrapContext, inst instance.Instance, env environs.Environ) {
	if err == nil {
		return
	}

	logger.Errorf("bootstrap failed: %v", err)
	ch := make(chan os.Signal, 1)
	ctx.InterruptNotify(ch)
	defer ctx.StopInterruptNotify(ch)
	defer close(ch)
	go func() {
		for _ = range ch {
			fmt.Fprintln(ctx.GetStderr(), "Cleaning up failed bootstrap")
		}
	}()

	if inst != nil {
		fmt.Fprintln(ctx.GetStderr(), "Stopping instance...")
		if stoperr := env.StopInstances(inst.Id()); stoperr != nil {
			logger.Errorf("cannot stop failed bootstrap instance %q: %v", inst.Id(), stoperr)
		} else {
			// set to nil so we know we can safely delete the state file
			inst = nil
		}
	}
	// We only delete the bootstrap state file if either we didn't
	// start an instance, or we managed to cleanly stop it.
	if inst == nil {
		if rmerr := bootstrap.DeleteStateFile(env.Storage()); rmerr != nil {
			logger.Errorf("cannot delete bootstrap state file: %v", rmerr)
		}
	}
}
Exemplo n.º 2
0
func (suite *StateSuite) TestDeleteStateFile(c *gc.C) {
	closer, stor, dataDir := envtesting.CreateLocalTestStorage(c)
	defer closer.Close()

	err := bootstrap.DeleteStateFile(stor)
	c.Assert(err, gc.IsNil) // doesn't exist, juju don't care

	_, err = bootstrap.CreateStateFile(stor)
	c.Assert(err, gc.IsNil)
	_, err = os.Stat(filepath.Join(dataDir, bootstrap.StateFile))
	c.Assert(err, gc.IsNil)

	err = bootstrap.DeleteStateFile(stor)
	c.Assert(err, gc.IsNil)
	_, err = os.Stat(filepath.Join(dataDir, bootstrap.StateFile))
	c.Assert(err, jc.Satisfies, os.IsNotExist)
}