Ejemplo n.º 1
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// fetchMachines returns a map from top level machine id to machines, where machines[0] is the host
// machine and machines[1..n] are any containers (including nested ones).
//
// If machineIds is non-nil, only machines whose IDs are in the set are returned.
func fetchMachines(st *state.State, machineIds *set.Strings) (map[string][]*state.Machine, error) {
	v := make(map[string][]*state.Machine)
	machines, err := st.AllMachines()
	if err != nil {
		return nil, err
	}
	// AllMachines gives us machines sorted by id.
	for _, m := range machines {
		if machineIds != nil && !machineIds.Contains(m.Id()) {
			continue
		}
		parentId, ok := m.ParentId()
		if !ok {
			// Only top level host machines go directly into the machine map.
			v[m.Id()] = []*state.Machine{m}
		} else {
			topParentId := state.TopParentId(m.Id())
			machines, ok := v[topParentId]
			if !ok {
				panic(fmt.Errorf("unexpected machine id %q", parentId))
			}
			machines = append(machines, m)
			v[topParentId] = machines
		}
	}
	return v, nil
}
Ejemplo n.º 2
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// fetchAllServicesAndUnits returns a map from service name to service
// and a map from service name to unit name to unit.
func fetchAllServicesAndUnits(st *state.State, unitMatcher unitMatcher) (map[string]*state.Service, map[string]map[string]*state.Unit, error) {
	svcMap := make(map[string]*state.Service)
	unitMap := make(map[string]map[string]*state.Unit)
	services, err := st.AllServices()
	if err != nil {
		return nil, nil, err
	}
	for _, s := range services {
		units, err := s.AllUnits()
		if err != nil {
			return nil, nil, err
		}
		svcUnitMap := make(map[string]*state.Unit)
		for _, u := range units {
			if !unitMatcher.matchUnit(u) {
				continue
			}
			svcUnitMap[u.Name()] = u
		}
		if unitMatcher.matchesAny() || len(svcUnitMap) > 0 {
			unitMap[s.Name()] = svcUnitMap
			svcMap[s.Name()] = s
		}
	}
	return svcMap, unitMap, nil
}
Ejemplo n.º 3
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func waitForUnitStarted(stateConn *state.State, unit *state.Unit, c *C) {
	timeout := time.After(5 * time.Second)

	for {
		select {
		case <-timeout:
			c.Fatalf("no activity detected")
		case <-time.After(testing.ShortWait):
			err := unit.Refresh()
			c.Assert(err, IsNil)
			st, info, err := unit.Status()
			c.Assert(err, IsNil)
			switch st {
			case params.StatusPending, params.StatusInstalled:
				c.Logf("waiting...")
				continue
			case params.StatusStarted:
				c.Logf("started!")
				return
			case params.StatusDown:
				stateConn.StartSync()
				c.Logf("unit is still down")
			default:
				c.Fatalf("unexpected status %s %s", st, info)
			}
		}
	}
}
Ejemplo n.º 4
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// SetServiceContstraints sets the constraints for a given service
func SetServiceConstraints(st *state.State, args params.SetServiceConstraints) error {
	svc, err := st.Service(args.ServiceName)
	if err != nil {
		return err
	}
	return svc.SetConstraints(args.Constraints)
}
Ejemplo n.º 5
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// ServiceGet returns the configuration for the named service.
func ServiceGet(st *state.State, p params.ServiceGet) (params.ServiceGetResults, error) {
	service, err := st.Service(p.ServiceName)
	if err != nil {
		return params.ServiceGetResults{}, err
	}
	settings, err := service.ConfigSettings()
	if err != nil {
		return params.ServiceGetResults{}, err
	}
	charm, _, err := service.Charm()
	if err != nil {
		return params.ServiceGetResults{}, err
	}
	configInfo := describe(settings, charm.Config())
	var constraints constraints.Value
	if service.IsPrincipal() {
		constraints, err = service.Constraints()
		if err != nil {
			return params.ServiceGetResults{}, err
		}
	}
	return params.ServiceGetResults{
		Service:     p.ServiceName,
		Charm:       charm.Meta().Name,
		Config:      configInfo,
		Constraints: constraints,
	}, nil
}
Ejemplo n.º 6
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// GetServiceConstraints returns the constraints for a given service
func GetServiceConstraints(st *state.State, args params.GetServiceConstraints) (params.GetServiceConstraintsResults, error) {
	svc, err := st.Service(args.ServiceName)
	if err != nil {
		return params.GetServiceConstraintsResults{constraints.Value{}}, err
	}
	constraints, err := svc.Constraints()
	return params.GetServiceConstraintsResults{constraints}, err
}
Ejemplo n.º 7
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// breakDummyProvider changes the environment config in state in a way
// that causes the given environMethod of the dummy provider to return
// an error, which is also returned as a message to be checked.
func breakDummyProvider(c *C, st *state.State, environMethod string) string {
	oldCfg, err := st.EnvironConfig()
	c.Assert(err, IsNil)
	cfg, err := oldCfg.Apply(map[string]interface{}{"broken": environMethod})
	c.Assert(err, IsNil)
	err = st.SetEnvironConfig(cfg)
	c.Assert(err, IsNil)
	return fmt.Sprintf("dummy.%s is broken", environMethod)
}
Ejemplo n.º 8
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func newDeployer(st *state.State, w *state.UnitsWatcher, dataDir string) *deployer.Deployer {
	info := &state.Info{
		EntityName: w.EntityName(),
		Addrs:      st.Addrs(),
		CACert:     st.CACert(),
	}
	mgr := newDeployManager(st, info, dataDir)
	return deployer.NewDeployer(st, mgr, w)
}
Ejemplo n.º 9
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func isRemoved(st *state.State, name string) func(*C) bool {
	return func(c *C) bool {
		_, err := st.Unit(name)
		if errors.IsNotFoundError(err) {
			return true
		}
		c.Assert(err, IsNil)
		return false
	}
}
Ejemplo n.º 10
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// SetAgentVersion sets the current agent version in the state's
// environment configuration.
func SetAgentVersion(st *state.State, vers version.Number) error {
	cfg, err := st.EnvironConfig()
	if err != nil {
		return err
	}
	cfg, err = cfg.Apply(map[string]interface{}{"agent-version": vers.String()})
	if err != nil {
		return err
	}
	return st.SetEnvironConfig(cfg)
}
Ejemplo n.º 11
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func opClientServiceExpose(c *C, st *api.State, mst *state.State) (func(), error) {
	err := st.Client().ServiceExpose("wordpress")
	if err != nil {
		return func() {}, err
	}
	return func() {
		svc, err := mst.Service("wordpress")
		c.Assert(err, IsNil)
		svc.ClearExposed()
	}, nil
}
Ejemplo n.º 12
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// fetchAllMachines returns a map[string]*state.Machine representing
// a mapping of machine ids to machines.
func fetchAllMachines(st *state.State) (map[string]*state.Machine, error) {
	v := make(map[string]*state.Machine)
	machines, err := st.AllMachines()
	if err != nil {
		return nil, err
	}
	for _, m := range machines {
		v[m.Id()] = m
	}
	return v, nil
}
Ejemplo n.º 13
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// DestroyRelation removes the relation between the specified endpoints.
func DestroyRelation(state *state.State, args params.DestroyRelation) error {
	eps, err := state.InferEndpoints(args.Endpoints)
	if err != nil {
		return err
	}
	rel, err := state.EndpointsRelation(eps...)
	if err != nil {
		return err
	}
	return rel.Destroy()
}
Ejemplo n.º 14
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// fetchAllServices returns a map representing a mapping of service
// names to services.
func fetchAllServices(st *state.State) (map[string]*state.Service, error) {
	v := make(map[string]*state.Service)
	services, err := st.AllServices()
	if err != nil {
		return nil, err
	}
	for _, s := range services {
		v[s.Name()] = s
	}
	return v, nil
}
Ejemplo n.º 15
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// setAgentVersion sets the current agent version in the state's
// environment configuration.
func setAgentVersion(st *state.State, vers version.Number) error {
	cfg, err := st.EnvironConfig()
	if err != nil {
		return err
	}
	attrs := cfg.AllAttrs()
	attrs["agent-version"] = vers.String()
	cfg, err = config.New(attrs)
	if err != nil {
		panic(fmt.Errorf("config refused agent-version: %v", err))
	}
	return st.SetEnvironConfig(cfg)
}
Ejemplo n.º 16
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// getAllUnits returns a list of all principal and subordinate units
// assigned to the given machine.
func getAllUnits(st *state.State, machineTag string) ([]string, error) {
	machine, err := st.Machine(state.MachineIdFromTag(machineTag))
	if err != nil {
		return nil, err
	}
	// Start a watcher on machine's units, read the initial event and stop it.
	watch := machine.WatchUnits()
	defer watch.Stop()
	if units, ok := <-watch.Changes(); ok {
		return units, nil
	}
	return nil, fmt.Errorf("cannot obtain units of machine %q: %v", machineTag, watch.Err())
}
Ejemplo n.º 17
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func (a *MachineAgent) Entity(st *state.State) (AgentState, error) {
	m, err := st.Machine(a.MachineId)
	if err != nil {
		return nil, err
	}
	// Check the machine nonce as provisioned matches the agent.Conf value.
	if !m.CheckProvisioned(a.Conf.MachineNonce) {
		// The agent is running on a different machine to the one it
		// should be according to state. It must stop immediately.
		log.Errorf("running machine %v agent on inappropriate instance", m)
		return nil, worker.ErrTerminateAgent
	}
	return m, nil
}
Ejemplo n.º 18
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// NewConnFromState returns a Conn that uses an Environ
// made by reading the environment configuration.
// The resulting Conn uses the given State - closing
// it will close that State.
func NewConnFromState(st *state.State) (*Conn, error) {
	cfg, err := st.EnvironConfig()
	if err != nil {
		return nil, err
	}
	environ, err := environs.New(cfg)
	if err != nil {
		return nil, err
	}
	return &Conn{
		Environ: environ,
		State:   st,
	}, nil
}
Ejemplo n.º 19
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// opRecvTimeout waits for any of the given kinds of operation to
// be received from ops, and times out if not.
func opRecvTimeout(c *C, st *state.State, opc <-chan dummy.Operation, kinds ...dummy.Operation) dummy.Operation {
	st.StartSync()
	for {
		select {
		case op := <-opc:
			for _, k := range kinds {
				if reflect.TypeOf(op) == reflect.TypeOf(k) {
					return op
				}
			}
			c.Logf("discarding unknown event %#v", op)
		case <-time.After(15 * time.Second):
			c.Fatalf("time out wating for operation")
		}
	}
}
Ejemplo n.º 20
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// ServiceUnexpose changes the juju-managed firewall to unexpose any ports that
// were also explicitly marked by units as open.
func ServiceUnexpose(state *state.State, args params.ServiceUnexpose) error {
	svc, err := state.Service(args.ServiceName)
	if err != nil {
		return err
	}
	return svc.ClearExposed()
}
Ejemplo n.º 21
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// ServiceDestroy destroys a given service along with all its units and relations.
func ServiceDestroy(state *state.State, args params.ServiceDestroy) error {
	svc, err := state.Service(args.ServiceName)
	if err != nil {
		return err
	}

	return svc.Destroy()
}
Ejemplo n.º 22
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// ConfigureBootstrapMachine adds the initial machine into state.  As a part
// of this process the environmental constraints are saved as constraints used
// when bootstrapping are considered constraints for the entire environment.
func ConfigureBootstrapMachine(
	st *state.State,
	cons constraints.Value,
	datadir string,
	jobs []state.MachineJob,
	instId instance.Id,
	characteristics instance.HardwareCharacteristics,
) error {
	logger.Debugf("setting environment constraints")
	if err := st.SetEnvironConstraints(cons); err != nil {
		return err
	}

	logger.Debugf("create bootstrap machine in state")
	m, err := st.InjectMachine(version.Current.Series, cons, instId, characteristics, jobs...)
	if err != nil {
		return err
	}
	// Read the machine agent's password and change it to
	// a new password (other agents will change their password
	// via the API connection).
	logger.Debugf("create new random password for machine %v", m.Id())
	mconf, err := agent.ReadConf(datadir, m.Tag())
	if err != nil {
		return err
	}
	newPassword, err := utils.RandomPassword()
	if err != nil {
		return err
	}
	mconf.StateInfo.Password = newPassword
	mconf.APIInfo.Password = newPassword
	mconf.OldPassword = ""

	if err := mconf.Write(); err != nil {
		return err
	}
	if err := m.SetMongoPassword(newPassword); err != nil {
		return err
	}
	if err := m.SetPassword(newPassword); err != nil {
		return err
	}
	return nil
}
Ejemplo n.º 23
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// NewFirewaller returns a new Firewaller.
func NewFirewaller(st *state.State) *Firewaller {
	fw := &Firewaller{
		st:              st,
		environWatcher:  st.WatchEnvironConfig(),
		machinesWatcher: st.WatchEnvironMachines(),
		machineds:       make(map[string]*machineData),
		unitsChange:     make(chan *unitsChange),
		unitds:          make(map[string]*unitData),
		portsChange:     make(chan *portsChange),
		serviceds:       make(map[string]*serviceData),
		exposedChange:   make(chan *exposedChange),
	}
	go func() {
		defer fw.tomb.Done()
		fw.tomb.Kill(fw.loop())
	}()
	return fw
}
Ejemplo n.º 24
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// AddRelation adds a relation between the specified endpoint names, and
// returns a map from service names to relation endpoints.
func AddRelation(state *state.State, args params.AddRelation) (params.AddRelationResults, error) {
	inEps, err := state.InferEndpoints(args.Endpoints)
	if err != nil {
		return params.AddRelationResults{}, err
	}
	rel, err := state.AddRelation(inEps...)
	if err != nil {
		return params.AddRelationResults{}, err
	}
	outEps := make(map[string]charm.Relation)
	for _, inEp := range inEps {
		outEp, err := rel.Endpoint(inEp.ServiceName)
		if err != nil {
			return params.AddRelationResults{}, err
		}
		outEps[inEp.ServiceName] = outEp.Relation
	}
	return params.AddRelationResults{Endpoints: outEps}, nil
}
Ejemplo n.º 25
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// fetchAllServicesAndUnits returns a map from service name to service
// and a map from service name to unit name to unit.
func fetchAllServicesAndUnits(st *state.State) (map[string]*state.Service, map[string]map[string]*state.Unit, error) {
	svcMap := make(map[string]*state.Service)
	unitMap := make(map[string]map[string]*state.Unit)
	services, err := st.AllServices()
	if err != nil {
		return nil, nil, err
	}
	for _, s := range services {
		svcMap[s.Name()] = s
		units, err := s.AllUnits()
		if err != nil {
			return nil, nil, err
		}
		svcUnitMap := make(map[string]*state.Unit)
		for _, u := range units {
			svcUnitMap[u.Name()] = u
		}
		unitMap[s.Name()] = svcUnitMap
	}
	return svcMap, unitMap, nil
}
Ejemplo n.º 26
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// BootstrapUsers creates the initial admin user for the database, and sets
// the initial password.
func BootstrapUsers(st *state.State, cfg *config.Config, passwordHash string) error {
	logger.Debugf("adding admin user")
	// Set up initial authentication.
	u, err := st.AddUser("admin", "")
	if err != nil {
		return err
	}

	// Note that at bootstrap time, the password is set to
	// the hash of its actual value. The first time a client
	// connects to mongo, it changes the mongo password
	// to the original password.
	logger.Debugf("setting password hash for admin user")
	if err := u.SetPasswordHash(passwordHash); err != nil {
		return err
	}
	if err := st.SetAdminMongoPassword(passwordHash); err != nil {
		return err
	}
	return nil

}
Ejemplo n.º 27
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// AddServiceUnits adds a given number of units to a service.
func AddServiceUnits(state *state.State, args params.AddServiceUnits) ([]*state.Unit, error) {
	conn, err := juju.NewConnFromState(state)
	if err != nil {
		return nil, err
	}
	service, err := state.Service(args.ServiceName)
	if err != nil {
		return nil, err
	}
	if args.NumUnits < 1 {
		return nil, errors.New("must add at least one unit")
	}
	if args.NumUnits > 1 && args.ToMachineSpec != "" {
		return nil, errors.New("cannot use --num-units with --to")
	}
	return conn.AddUnits(service, args.NumUnits, args.ToMachineSpec)
}
Ejemplo n.º 28
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func (a *MachineAgent) Entity(st *state.State) (AgentState, error) {
	return st.Machine(a.MachineId)
}
Ejemplo n.º 29
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func assertMachineCount(c *C, st *state.State, expect int) {
	ms, err := st.AllMachines()
	c.Assert(err, IsNil)
	c.Assert(ms, HasLen, expect, Commentf("%v", ms))
}
Ejemplo n.º 30
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func (a *UnitAgent) Entity(st *state.State) (AgentState, error) {
	return st.Unit(a.UnitName)
}