Esempio n. 1
0
func (c *SetConstraintsCommand) Init(args []string) (err error) {
	if c.ServiceName != "" && !names.IsService(c.ServiceName) {
		return fmt.Errorf("invalid service name %q", c.ServiceName)
	}
	c.Constraints, err = constraints.Parse(args...)
	return err
}
Esempio n. 2
0
func (c *GetConstraintsCommand) Init(args []string) error {
	if len(args) > 0 {
		if !names.IsService(args[0]) {
			return fmt.Errorf("invalid service name %q", args[0])
		}
		c.ServiceName, args = args[0], args[1:]
	}
	return cmd.CheckEmpty(args)
}
Esempio n. 3
0
func (c *RemoveServiceCommand) Init(args []string) error {
	if len(args) == 0 {
		return fmt.Errorf("no service specified")
	}
	if !names.IsService(args[0]) {
		return fmt.Errorf("invalid service name %q", args[0])
	}
	c.ServiceName, args = args[0], args[1:]
	return cmd.CheckEmpty(args)
}
Esempio n. 4
0
File: state.go Progetto: jkary/core
// Service returns a service state by name.
func (st *State) Service(name string) (service *Service, err error) {
	if !names.IsService(name) {
		return nil, fmt.Errorf("%q is not a valid service name", name)
	}
	sdoc := &serviceDoc{}
	sel := bson.D{{"_id", name}}
	err = st.services.Find(sel).One(sdoc)
	if err == mgo.ErrNotFound {
		return nil, errors.NotFoundf("service %q", name)
	}
	if err != nil {
		return nil, fmt.Errorf("cannot get service %q: %v", name, err)
	}
	return newService(st, sdoc), nil
}
Esempio n. 5
0
File: deploy.go Progetto: jkary/core
func (c *DeployCommand) Init(args []string) error {
	switch len(args) {
	case 2:
		if !names.IsService(args[1]) {
			return fmt.Errorf("invalid service name %q", args[1])
		}
		c.ServiceName = args[1]
		fallthrough
	case 1:
		if _, err := charm.InferURL(args[0], "fake"); err != nil {
			return fmt.Errorf("invalid charm name %q", args[0])
		}
		c.CharmName = args[0]
	case 0:
		return errors.New("no charm specified")
	default:
		return cmd.CheckEmpty(args[2:])
	}
	return c.UnitCommandBase.Init(args)
}
Esempio n. 6
0
File: state.go Progetto: jkary/core
// AddService creates a new service, running the supplied charm, with the
// supplied name (which must be unique). If the charm defines peer relations,
// they will be created automatically.
func (st *State) AddService(name, ownerTag string, ch *Charm, includeNetworks, excludeNetworks []string) (service *Service, err error) {
	defer errors.Maskf(&err, "cannot add service %q", name)
	kind, ownerId, err := names.ParseTag(ownerTag, names.UserTagKind)
	if err != nil || kind != names.UserTagKind {
		return nil, fmt.Errorf("Invalid ownertag %s", ownerTag)
	}
	// Sanity checks.
	if !names.IsService(name) {
		return nil, fmt.Errorf("invalid name")
	}
	if ch == nil {
		return nil, fmt.Errorf("charm is nil")
	}
	if exists, err := isNotDead(st.services, name); err != nil {
		return nil, err
	} else if exists {
		return nil, fmt.Errorf("service already exists")
	}
	env, err := st.Environment()
	if err != nil {
		return nil, err
	} else if env.Life() != Alive {
		return nil, fmt.Errorf("environment is no longer alive")
	}
	if userExists, err := st.checkUserExists(ownerId); err != nil {
		return nil, err
	} else if !userExists {
		return nil, fmt.Errorf("user %v doesn't exist", ownerId)
	}
	// Create the service addition operations.
	peers := ch.Meta().Peers
	svcDoc := &serviceDoc{
		Name:          name,
		Series:        ch.URL().Series,
		Subordinate:   ch.Meta().Subordinate,
		CharmURL:      ch.URL(),
		RelationCount: len(peers),
		Life:          Alive,
		OwnerTag:      ownerTag,
	}
	svc := newService(st, svcDoc)
	ops := []txn.Op{
		env.assertAliveOp(),
		createConstraintsOp(st, svc.globalKey(), constraints.Value{}),
		// TODO(dimitern) 2014-04-04 bug #1302498
		// Once we can add networks independently of machine
		// provisioning, we should check the given networks are valid
		// and known before setting them.
		createRequestedNetworksOp(st, svc.globalKey(), includeNetworks, excludeNetworks),
		createSettingsOp(st, svc.settingsKey(), nil),
		{
			C:      st.users.Name,
			Id:     ownerId,
			Assert: txn.DocExists,
		},
		{
			C:      st.settingsrefs.Name,
			Id:     svc.settingsKey(),
			Assert: txn.DocMissing,
			Insert: settingsRefsDoc{1},
		},
		{
			C:      st.services.Name,
			Id:     name,
			Assert: txn.DocMissing,
			Insert: svcDoc,
		}}
	// Collect peer relation addition operations.
	peerOps, err := st.addPeerRelationsOps(name, peers)
	if err != nil {
		return nil, err
	}
	ops = append(ops, peerOps...)

	if err := st.runTransaction(ops); err == txn.ErrAborted {
		err := env.Refresh()
		if (err == nil && env.Life() != Alive) || errors.IsNotFound(err) {
			return nil, fmt.Errorf("environment is no longer alive")
		} else if err != nil {
			return nil, err
		}

		if userExists, ueErr := st.checkUserExists(ownerId); ueErr != nil {
			return nil, ueErr
		} else if !userExists {
			return nil, fmt.Errorf("unknown user %q", ownerId)
		}

		return nil, fmt.Errorf("service already exists")
	} else if err != nil {
		return nil, err
	}
	// Refresh to pick the txn-revno.
	if err = svc.Refresh(); err != nil {
		return nil, err
	}
	return svc, nil
}