Example #1
0
// PrivateAddress implements the server side of Client.PrivateAddress.
func (c *Client) PrivateAddress(p params.PrivateAddress) (results params.PrivateAddressResults, err error) {
	switch {
	case names.IsMachine(p.Target):
		machine, err := c.api.state.Machine(p.Target)
		if err != nil {
			return results, err
		}
		addr := network.SelectInternalAddress(machine.Addresses(), false)
		if addr == "" {
			return results, fmt.Errorf("machine %q has no internal address", machine)
		}
		return params.PrivateAddressResults{PrivateAddress: addr}, nil

	case names.IsUnit(p.Target):
		unit, err := c.api.state.Unit(p.Target)
		if err != nil {
			return results, err
		}
		addr, ok := unit.PrivateAddress()
		if !ok {
			return results, fmt.Errorf("unit %q has no internal address", unit)
		}
		return params.PrivateAddressResults{PrivateAddress: addr}, nil
	}
	return results, fmt.Errorf("unknown unit or machine %q", p.Target)
}
Example #2
0
func (s *machineSuite) TestMachineIdFormats(c *gc.C) {
	for i, test := range machineIdTests {
		c.Logf("test %d: %q", i, test.pattern)
		c.Assert(names.IsMachine(test.pattern), gc.Equals, test.valid)
		c.Assert(names.IsContainerMachine(test.pattern), gc.Equals, test.container)
	}
}
Example #3
0
File: ssh.go Project: rogpeppe/juju
func (c *SSHCommon) hostFromTarget(target string) (string, error) {
	// If the target is neither a machine nor a unit,
	// assume it's a hostname and try it directly.
	if !names.IsMachine(target) && !names.IsUnit(target) {
		return target, nil
	}
	// A target may not initially have an address (e.g. the
	// address updater hasn't yet run), so we must do this in
	// a loop.
	if _, err := c.ensureAPIClient(); err != nil {
		return "", err
	}
	var err error
	for a := sshHostFromTargetAttemptStrategy.Start(); a.Next(); {
		var addr string
		if c.proxy {
			addr, err = c.apiClient.PrivateAddress(target)
		} else {
			addr, err = c.apiClient.PublicAddress(target)
		}
		if err == nil {
			return addr, nil
		}
	}
	return "", err
}
Example #4
0
// Init initializes the command for running.
func (a *MachineAgent) Init(args []string) error {
	if !names.IsMachine(a.MachineId) {
		return fmt.Errorf("--machine-id option must be set, and expects a non-negative integer")
	}
	if err := a.AgentConf.CheckArgs(args); err != nil {
		return err
	}
	a.runner = newRunner(isFatal, moreImportant)
	a.upgradeComplete = make(chan struct{})
	a.workersStarted = make(chan struct{})
	return nil
}
Example #5
0
func (c *RemoveMachineCommand) Init(args []string) error {
	if len(args) == 0 {
		return fmt.Errorf("no machines specified")
	}
	for _, id := range args {
		if !names.IsMachine(id) {
			return fmt.Errorf("invalid machine id %q", id)
		}
	}
	c.MachineIds = args
	return nil
}
Example #6
0
func (c *RetryProvisioningCommand) Init(args []string) error {
	if len(args) == 0 {
		return fmt.Errorf("no machine specified")
	}
	c.Machines = make([]string, len(args))
	for i, arg := range args {
		if !names.IsMachine(arg) {
			return fmt.Errorf("invalid machine %q", arg)
		}
		c.Machines[i] = names.NewMachineTag(arg).String()
	}
	return nil
}
Example #7
0
// ParsePlacement attempts to parse the specified string and create a
// corresponding Placement structure.
//
// If the placement directive is non-empty and missing a scope,
// ErrPlacementScopeMissing will be returned as well as a Placement
// with an empty Scope field.
func ParsePlacement(directive string) (*Placement, error) {
	if directive == "" {
		return nil, nil
	}
	if colon := strings.IndexRune(directive, ':'); colon != -1 {
		scope, directive := directive[:colon], directive[colon+1:]
		if scope == "" {
			return nil, ErrPlacementScopeMissing
		}
		// Sanity check: machine/container scopes require a machine ID as the value.
		if (scope == MachineScope || isContainerType(scope)) && !names.IsMachine(directive) {
			return nil, fmt.Errorf("invalid value %q for %q scope: expected machine-id", directive, scope)
		}
		return &Placement{Scope: scope, Directive: directive}, nil
	}
	if names.IsMachine(directive) {
		return &Placement{Scope: MachineScope, Directive: directive}, nil
	}
	if isContainerType(directive) {
		return &Placement{Scope: directive}, nil
	}
	return nil, ErrPlacementScopeMissing
}
Example #8
0
File: run.go Project: rogpeppe/juju
func (c *RunCommand) Init(args []string) error {
	if len(args) == 0 {
		return fmt.Errorf("no commands specified")
	}
	c.commands, args = args[0], args[1:]

	if c.all {
		if len(c.machines) != 0 {
			return fmt.Errorf("You cannot specify --all and individual machines")
		}
		if len(c.services) != 0 {
			return fmt.Errorf("You cannot specify --all and individual services")
		}
		if len(c.units) != 0 {
			return fmt.Errorf("You cannot specify --all and individual units")
		}
	} else {
		if len(c.machines) == 0 && len(c.services) == 0 && len(c.units) == 0 {
			return fmt.Errorf("You must specify a target, either through --all, --machine, --service or --unit")
		}
	}

	var nameErrors []string
	for _, machineId := range c.machines {
		if !names.IsMachine(machineId) {
			nameErrors = append(nameErrors, fmt.Sprintf("  %q is not a valid machine id", machineId))
		}
	}
	for _, service := range c.services {
		if !names.IsService(service) {
			nameErrors = append(nameErrors, fmt.Sprintf("  %q is not a valid service name", service))
		}
	}
	for _, unit := range c.units {
		if !names.IsUnit(unit) {
			nameErrors = append(nameErrors, fmt.Sprintf("  %q is not a valid unit name", unit))
		}
	}
	if len(nameErrors) > 0 {
		return fmt.Errorf("The following run targets are not valid:\n%s",
			strings.Join(nameErrors, "\n"))
	}

	return cmd.CheckEmpty(args)
}
Example #9
0
func verifyConfig(cfg *MachineConfig) (err error) {
	defer errors.Maskf(&err, "invalid machine configuration")
	if !names.IsMachine(cfg.MachineId) {
		return fmt.Errorf("invalid machine id")
	}
	if cfg.DataDir == "" {
		return fmt.Errorf("missing var directory")
	}
	if cfg.LogDir == "" {
		return fmt.Errorf("missing log directory")
	}
	if len(cfg.Jobs) == 0 {
		return fmt.Errorf("missing machine jobs")
	}
	if cfg.CloudInitOutputLog == "" {
		return fmt.Errorf("missing cloud-init output log path")
	}
	if cfg.Tools == nil {
		return fmt.Errorf("missing tools")
	}
	if cfg.Tools.URL == "" {
		return fmt.Errorf("missing tools URL")
	}
	if cfg.StateInfo == nil {
		return fmt.Errorf("missing state info")
	}
	if len(cfg.StateInfo.CACert) == 0 {
		return fmt.Errorf("missing CA certificate")
	}
	if cfg.APIInfo == nil {
		return fmt.Errorf("missing API info")
	}
	if len(cfg.APIInfo.CACert) == 0 {
		return fmt.Errorf("missing API CA certificate")
	}
	if cfg.MachineAgentServiceName == "" {
		return fmt.Errorf("missing machine agent service name")
	}
	if cfg.Bootstrap {
		if cfg.Config == nil {
			return fmt.Errorf("missing environment configuration")
		}
		if cfg.StateInfo.Tag != "" {
			return fmt.Errorf("entity tag must be blank when starting a state server")
		}
		if cfg.APIInfo.Tag != "" {
			return fmt.Errorf("entity tag must be blank when starting a state server")
		}
		if cfg.StateServingInfo == nil {
			return fmt.Errorf("missing state serving info")
		}
		if len(cfg.StateServingInfo.Cert) == 0 {
			return fmt.Errorf("missing state server certificate")
		}
		if len(cfg.StateServingInfo.PrivateKey) == 0 {
			return fmt.Errorf("missing state server private key")
		}
		if cfg.StateServingInfo.StatePort == 0 {
			return fmt.Errorf("missing state port")
		}
		if cfg.StateServingInfo.APIPort == 0 {
			return fmt.Errorf("missing API port")
		}
		if cfg.SystemPrivateSSHKey == "" {
			return fmt.Errorf("missing system ssh identity")
		}
		if cfg.InstanceId == "" {
			return fmt.Errorf("missing instance-id")
		}
	} else {
		if len(cfg.StateInfo.Addrs) == 0 {
			return fmt.Errorf("missing state hosts")
		}
		if cfg.StateInfo.Tag != names.NewMachineTag(cfg.MachineId).String() {
			return fmt.Errorf("entity tag must match started machine")
		}
		if len(cfg.APIInfo.Addrs) == 0 {
			return fmt.Errorf("missing API hosts")
		}
		if cfg.APIInfo.Tag != names.NewMachineTag(cfg.MachineId).String() {
			return fmt.Errorf("entity tag must match started machine")
		}
		if cfg.StateServingInfo != nil {
			return fmt.Errorf("state serving info unexpectedly present")
		}
	}
	if cfg.MachineNonce == "" {
		return fmt.Errorf("missing machine nonce")
	}
	return nil
}
Example #10
0
// AddUnits starts n units of the given service and allocates machines
// to them as necessary.
func AddUnits(st *state.State, svc *state.Service, n int, machineIdSpec string) ([]*state.Unit, error) {
	units := make([]*state.Unit, n)
	// Hard code for now till we implement a different approach.
	policy := state.AssignCleanEmpty
	// All units should have the same networks as the service.
	networks, err := svc.Networks()
	if err != nil {
		return nil, fmt.Errorf("cannot get service %q networks: %v", svc.Name(), err)
	}
	// TODO what do we do if we fail half-way through this process?
	for i := 0; i < n; i++ {
		unit, err := svc.AddUnit()
		if err != nil {
			return nil, fmt.Errorf("cannot add unit %d/%d to service %q: %v", i+1, n, svc.Name(), err)
		}
		if machineIdSpec != "" {
			if n != 1 {
				return nil, fmt.Errorf("cannot add multiple units of service %q to a single machine", svc.Name())
			}
			// machineIdSpec may be an existing machine or container, eg 3/lxc/2
			// or a new container on a machine, eg lxc:3
			mid := machineIdSpec
			var containerType instance.ContainerType
			specParts := strings.SplitN(machineIdSpec, ":", 2)
			if len(specParts) > 1 {
				firstPart := specParts[0]
				var err error
				if containerType, err = instance.ParseContainerType(firstPart); err == nil {
					mid = specParts[1]
				} else {
					mid = machineIdSpec
				}
			}
			if !names.IsMachine(mid) {
				return nil, fmt.Errorf("invalid force machine id %q", mid)
			}
			var unitCons *constraints.Value
			unitCons, err = unit.Constraints()
			if err != nil {
				return nil, err
			}

			var err error
			var m *state.Machine
			// If a container is to be used, create it.
			if containerType != "" {
				// Create the new machine marked as dirty so that
				// nothing else will grab it before we assign the unit to it.
				template := state.MachineTemplate{
					Series:            unit.Series(),
					Jobs:              []state.MachineJob{state.JobHostUnits},
					Dirty:             true,
					Constraints:       *unitCons,
					RequestedNetworks: networks,
				}
				m, err = st.AddMachineInsideMachine(template, mid, containerType)
			} else {
				m, err = st.Machine(mid)
			}
			if err != nil {
				return nil, fmt.Errorf("cannot assign unit %q to machine: %v", unit.Name(), err)
			}
			err = unit.AssignToMachine(m)

			if err != nil {
				return nil, err
			}
		} else if err := st.AssignUnit(unit, policy); err != nil {
			return nil, err
		}
		units[i] = unit
	}
	return units, nil
}