func (s *provisionerSuite) TestProvisioningScript(c *gc.C) {
	const series = "precise"
	const arch = "amd64"
	defer fakeSSH{
		Series:         series,
		Arch:           arch,
		InitUbuntuUser: true,
	}.install(c).Restore()
	machineId, err := manual.ProvisionMachine(s.getArgs(c))
	c.Assert(err, gc.IsNil)

	mcfg, err := client.MachineConfig(s.State, machineId, agent.BootstrapNonce, "/var/lib/juju")
	c.Assert(err, gc.IsNil)
	script, err := manual.ProvisioningScript(mcfg)
	c.Assert(err, gc.IsNil)

	cloudcfg := coreCloudinit.New()
	err = cloudinit.ConfigureJuju(mcfg, cloudcfg)
	c.Assert(err, gc.IsNil)
	cloudcfg.SetAptUpgrade(false)
	sshinitScript, err := sshinit.ConfigureScript(cloudcfg)
	c.Assert(err, gc.IsNil)

	removeLogFile := "rm -f '/var/log/cloud-init-output.log'\n"
	expectedScript := removeLogFile + shell.DumpFileOnErrorScript("/var/log/cloud-init-output.log") + sshinitScript
	c.Assert(script, gc.Equals, expectedScript)
}

// ProvisioningScript returns a shell script that, when run,
// provisions a machine agent on the machine executing the script.
func (c *Client) ProvisioningScript(args params.ProvisioningScriptParams) (params.ProvisioningScriptResult, error) {
	var result params.ProvisioningScriptResult
	icfg, err := InstanceConfig(c.api.state, args.MachineId, args.Nonce, args.DataDir)
	if err != nil {
		return result, err
	}

	// Until DisablePackageCommands is retired, for backwards
	// compatibility, we must respect the client's request and
	// override any environment settings the user may have specified.
	// If the client does specify this setting, it will only ever be
	// true. False indicates the client doesn't care and we should use
	// what's specified in the environments.yaml file.
	if args.DisablePackageCommands {
		icfg.EnableOSRefreshUpdate = false
		icfg.EnableOSUpgrade = false
	} else if cfg, err := c.api.state.EnvironConfig(); err != nil {
		return result, err
	} else {
		icfg.EnableOSUpgrade = cfg.EnableOSUpgrade()
		icfg.EnableOSRefreshUpdate = cfg.EnableOSRefreshUpdate()
	}

	result.Script, err = manual.ProvisioningScript(icfg)
	return result, err
}

func (s *clientSuite) TestProvisioningScript(c *gc.C) {
	// Inject a machine and then call the ProvisioningScript API.
	// The result should be the same as when calling MachineConfig,
	// converting it to a cloudinit.MachineConfig, and disabling
	// apt_upgrade.
	apiParams := params.AddMachineParams{
		Jobs:       []multiwatcher.MachineJob{multiwatcher.JobHostUnits},
		InstanceId: instance.Id("1234"),
		Nonce:      "foo",
		HardwareCharacteristics: instance.MustParseHardware("arch=amd64"),
	}
	machines, err := s.APIState.Client().AddMachines([]params.AddMachineParams{apiParams})
	c.Assert(err, jc.ErrorIsNil)
	c.Assert(len(machines), gc.Equals, 1)
	machineId := machines[0].Machine
	// Call ProvisioningScript. Normally ProvisioningScript and
	// MachineConfig are mutually exclusive; both of them will
	// allocate a api password for the machine agent.
	script, err := s.APIState.Client().ProvisioningScript(params.ProvisioningScriptParams{
		MachineId: machineId,
		Nonce:     apiParams.Nonce,
	})
	c.Assert(err, jc.ErrorIsNil)
	icfg, err := client.InstanceConfig(s.State, machineId, apiParams.Nonce, "")
	c.Assert(err, jc.ErrorIsNil)
	provisioningScript, err := manual.ProvisioningScript(icfg)
	c.Assert(err, jc.ErrorIsNil)
	// ProvisioningScript internally calls MachineConfig,
	// which allocates a new, random password. Everything
	// about the scripts should be the same other than
	// the line containing "oldpassword" from agent.conf.
	scriptLines := strings.Split(script, "\n")
	provisioningScriptLines := strings.Split(provisioningScript, "\n")
	c.Assert(scriptLines, gc.HasLen, len(provisioningScriptLines))
	for i, line := range scriptLines {
		if strings.Contains(line, "oldpassword") {
			continue
		}
		c.Assert(line, gc.Equals, provisioningScriptLines[i])
	}
}

// ProvisioningScript returns a shell script that, when run,
// provisions a machine agent on the machine executing the script.
func (c *Client) ProvisioningScript(args params.ProvisioningScriptParams) (params.ProvisioningScriptResult, error) {
	if err := c.checkCanWrite(); err != nil {
		return params.ProvisioningScriptResult{}, err
	}

	var result params.ProvisioningScriptResult
	icfg, err := InstanceConfig(c.api.state(), args.MachineId, args.Nonce, args.DataDir)
	if err != nil {
		return result, common.ServerError(errors.Annotate(
			err, "getting instance config",
		))
	}

	// Until DisablePackageCommands is retired, for backwards
	// compatibility, we must respect the client's request and
	// override any model settings the user may have specified.
	// If the client does specify this setting, it will only ever be
	// true. False indicates the client doesn't care and we should use
	// what's specified in the environment config.
	if args.DisablePackageCommands {
		icfg.EnableOSRefreshUpdate = false
		icfg.EnableOSUpgrade = false
	} else if cfg, err := c.api.stateAccessor.ModelConfig(); err != nil {
		return result, common.ServerError(errors.Annotate(
			err, "getting model config",
		))
	} else {
		icfg.EnableOSUpgrade = cfg.EnableOSUpgrade()
		icfg.EnableOSRefreshUpdate = cfg.EnableOSRefreshUpdate()
	}

	result.Script, err = manual.ProvisioningScript(icfg)
	if err != nil {
		return result, common.ServerError(errors.Annotate(
			err, "getting provisioning script",
		))
	}
	return result, nil
}

func (s *provisionerSuite) TestProvisioningScript(c *gc.C) {
	var series = series.LatestLts()
	const arch = "amd64"
	defer fakeSSH{
		Series:         series,
		Arch:           arch,
		InitUbuntuUser: true,
	}.install(c).Restore()

	machineId, err := manual.ProvisionMachine(s.getArgs(c))
	c.Assert(err, jc.ErrorIsNil)

	err = s.State.UpdateModelConfig(
		map[string]interface{}{
			"enable-os-upgrade": false,
		}, nil, nil)
	c.Assert(err, jc.ErrorIsNil)

	icfg, err := client.InstanceConfig(s.State, machineId, agent.BootstrapNonce, "/var/lib/juju")

	c.Assert(err, jc.ErrorIsNil)
	script, err := manual.ProvisioningScript(icfg)
	c.Assert(err, jc.ErrorIsNil)

	cloudcfg, err := cloudinit.New(series)
	c.Assert(err, jc.ErrorIsNil)
	udata, err := cloudconfig.NewUserdataConfig(icfg, cloudcfg)
	c.Assert(err, jc.ErrorIsNil)
	err = udata.ConfigureJuju()
	c.Assert(err, jc.ErrorIsNil)
	cloudcfg.SetSystemUpgrade(false)
	provisioningScript, err := cloudcfg.RenderScript()
	c.Assert(err, jc.ErrorIsNil)

	removeLogFile := "rm -f '/var/log/cloud-init-output.log'\n"
	expectedScript := removeLogFile + shell.DumpFileOnErrorScript("/var/log/cloud-init-output.log") + provisioningScript
	c.Assert(script, gc.Equals, expectedScript)
}

func (s *provisionerSuite) TestProvisioningScript(c *gc.C) {
	const series = coretesting.FakeDefaultSeries
	const arch = "amd64"
	defer fakeSSH{
		Series:         series,
		Arch:           arch,
		InitUbuntuUser: true,
	}.install(c).Restore()

	machineId, err := manual.ProvisionMachine(s.getArgs(c))
	c.Assert(err, gc.IsNil)

	err = s.State.UpdateEnvironConfig(
		map[string]interface{}{
			"enable-os-upgrade": false,
		}, nil, nil)
	c.Assert(err, gc.IsNil)

	mcfg, err := client.MachineConfig(s.State, machineId, agent.BootstrapNonce, "/var/lib/juju")

	c.Assert(err, gc.IsNil)
	script, err := manual.ProvisioningScript(mcfg)
	c.Assert(err, gc.IsNil)

	cloudcfg := coreCloudinit.New()
	udata, err := cloudinit.NewUserdataConfig(mcfg, cloudcfg)
	c.Assert(err, gc.IsNil)
	err = udata.ConfigureJuju()
	c.Assert(err, gc.IsNil)
	cloudcfg.SetAptUpgrade(false)
	sshinitScript, err := sshinit.ConfigureScript(cloudcfg)
	c.Assert(err, gc.IsNil)

	removeLogFile := "rm -f '/var/log/cloud-init-output.log'\n"
	expectedScript := removeLogFile + shell.DumpFileOnErrorScript("/var/log/cloud-init-output.log") + sshinitScript
	c.Assert(script, gc.Equals, expectedScript)
}