func (c *NatExposeCommand) Run(ctx *cmd.Context) error {
err := c.Connect(c.target)
if err != nil {
return err
}
c.forwards = make(map[string][]*natcmd.Forward)
for _, uc := range c.ContainedUnits {
if (names.IsUnit(c.target) && uc.Unit.Name() == c.target) ||
(names.IsMachine(c.target) && (uc.HostMachine.Id() == c.target || uc.GatewayMachine.Id() == c.target)) {
fwd, err := uc.NewForward()
fwd.PortMap = c.portMap
if err != nil {
log.Println(err)
continue
}
c.forwards[uc.GatewayMachine.Id()] = append(c.forwards[uc.GatewayMachine.Id()], fwd)
}
}
if c.dryRun {
c.printNatScripts()
} else {
c.execNatScripts()
}
return nil
}
func (s *serviceSuite) TestServiceNameFormats(c *gc.C) {
assertService := func(s string, expect bool) {
c.Assert(names.IsService(s), gc.Equals, expect)
// Check that anything that is considered a valid service name
// is also (in)valid if a(n) (in)valid unit designator is added
// to it.
c.Assert(names.IsUnit(s+"/0"), gc.Equals, expect)
c.Assert(names.IsUnit(s+"/99"), gc.Equals, expect)
c.Assert(names.IsUnit(s+"/-1"), gc.Equals, false)
c.Assert(names.IsUnit(s+"/blah"), gc.Equals, false)
c.Assert(names.IsUnit(s+"/"), gc.Equals, false)
}
for i, test := range serviceNameTests {
c.Logf("test %d: %q", i, test.pattern)
assertService(test.pattern, test.valid)
}
}
// Unit returns the service's unit with name.
func (s *Service) Unit(name string) (*Unit, error) {
if !names.IsUnit(name) {
return nil, fmt.Errorf("%q is not a valid unit name", name)
}
udoc := &unitDoc{}
sel := D{{"_id", name}, {"service", s.doc.Name}}
if err := s.st.units.Find(sel).One(udoc); err != nil {
return nil, fmt.Errorf("cannot get unit %q from service %q: %v", name, s.doc.Name, err)
}
return newUnit(s.st, udoc), nil
}
func (c *ResolvedCommand) Init(args []string) error {
if len(args) > 0 {
c.UnitName = args[0]
if !names.IsUnit(c.UnitName) {
return fmt.Errorf("invalid unit name %q", c.UnitName)
}
args = args[1:]
} else {
return fmt.Errorf("no unit specified")
}
return cmd.CheckEmpty(args)
}
func (c *DestroyUnitCommand) Init(args []string) error {
c.UnitNames = args
if len(c.UnitNames) == 0 {
return errors.New("no units specified")
}
for _, name := range c.UnitNames {
if !names.IsUnit(name) {
return fmt.Errorf("invalid unit name %q", name)
}
}
return nil
}
// Init initializes the command for running.
func (a *UnitAgent) Init(args []string) error {
if a.UnitName == "" {
return requiredError("unit-name")
}
if !names.IsUnit(a.UnitName) {
return fmt.Errorf(`--unit-name option expects "<service>/<n>" argument`)
}
if err := a.Conf.checkArgs(args); err != nil {
return err
}
a.runner = worker.NewRunner(isFatal, moreImportant)
return nil
}
// Unit returns a unit by name.
func (st *State) Unit(name string) (*Unit, error) {
if !names.IsUnit(name) {
return nil, fmt.Errorf("%q is not a valid unit name", name)
}
doc := unitDoc{}
err := st.units.FindId(name).One(&doc)
if err == mgo.ErrNotFound {
return nil, errors.NotFoundf("unit %q", name)
}
if err != nil {
return nil, fmt.Errorf("cannot get unit %q: %v", name, err)
}
return newUnit(st, &doc), nil
}
// ReadSettings returns a map holding the settings of the unit with the
// supplied name within this relation. An error will be returned if the
// relation no longer exists, or if the unit's service is not part of the
// relation, or the settings are invalid; but mere non-existence of the
// unit is not grounds for an error, because the unit settings are
// guaranteed to persist for the lifetime of the relation, regardless
// of the lifetime of the unit.
func (ru *RelationUnit) ReadSettings(uname string) (m map[string]interface{}, err error) {
defer utils.ErrorContextf(&err, "cannot read settings for unit %q in relation %q", uname, ru.relation)
if !names.IsUnit(uname) {
return nil, fmt.Errorf("%q is not a valid unit name", uname)
}
key, err := ru.key(uname)
if err != nil {
return nil, err
}
node, err := readSettings(ru.st, key)
if err != nil {
return nil, err
}
return node.Map(), nil
}
func (ctx *SimpleContext) deployedUnitsUpstartJobs() (map[string]string, error) {
fis, err := ioutil.ReadDir(ctx.initDir)
if err != nil {
return nil, err
}
installed := make(map[string]string)
for _, fi := range fis {
if groups := deployedRe.FindStringSubmatch(fi.Name()); len(groups) == 4 {
unitName := groups[2] + "/" + groups[3]
if !names.IsUnit(unitName) {
continue
}
installed[unitName] = groups[1]
}
}
return installed, nil
}
func (c *NatOutboundCommand) Run(ctx *cmd.Context) error {
err := c.Connect(c.target)
if err != nil {
return err
}
var pending []natcmd.UnitContainment
for _, uc := range c.ContainedUnits {
if (names.IsUnit(c.target) && uc.Unit.Name() == c.target) ||
(names.IsMachine(c.target) && (uc.HostMachine.Id() == c.target || uc.GatewayMachine.Id() == c.target)) {
pending = append(pending, uc)
}
}
if c.dryRun {
c.printNatScripts(pending)
} else {
c.execNatScripts(pending)
}
return nil
}
func (c *NatCommand) Connect(target string) error {
var err error
c.Conn, err = juju.NewConnFromName(c.EnvName)
if err != nil {
return fmt.Errorf("Unable to connect to environment %q: %v", c.EnvName, err)
}
defer c.Conn.Close()
if !names.IsMachine(target) && !names.IsUnit(target) {
return fmt.Errorf("invalid target: %q", target)
}
c.MachineMap = make(map[string]*state.Machine)
st := c.Conn.State
machines, err := st.AllMachines()
for _, m := range machines {
c.MachineMap[m.Id()] = m
}
services, err := st.AllServices()
if err != nil {
return err
}
for _, s := range services {
units, err := s.AllUnits()
if err != nil {
return err
}
for _, u := range units {
uc, err := c.UnitContainment(u)
if err == ErrNoContainer {
continue
} else if err != nil {
log.Println(err)
continue
}
c.ContainedUnits = append(c.ContainedUnits, *uc)
}
}
return nil
}
func (c *SSHCommon) hostFromTarget(target string) (string, error) {
// is the target the id of a machine ?
if names.IsMachine(target) {
log.Infof("looking up address for machine %s...", target)
// TODO(dfc) maybe we should have machine.PublicAddress() ?
return c.machinePublicAddress(target)
}
// maybe the target is a unit ?
if names.IsUnit(target) {
log.Infof("looking up address for unit %q...", c.Target)
unit, err := c.State.Unit(target)
if err != nil {
return "", err
}
addr, ok := unit.PublicAddress()
if !ok {
return "", fmt.Errorf("unit %q has no public address", unit)
}
return addr, nil
}
return "", fmt.Errorf("unknown unit or machine %q", target)
}
func (s *unitSuite) TestUnitNameFormats(c *gc.C) {
for i, test := range unitNameTests {
c.Logf("test %d: %q", i, test.pattern)
c.Assert(names.IsUnit(test.pattern), gc.Equals, test.valid)
}
}