func (lg *LifeGetter) oneLife(tag string) (params.Life, error) {
entity0, err := lg.st.FindEntity(tag)
if err != nil {
return "", err
}
entity, ok := entity0.(state.Lifer)
if !ok {
return "", NotSupportedError(tag, "life cycles")
}
return params.Life(entity.Life().String()), nil
}
func (api *AgentAPI) getMachine(tag string) (result params.MachineAgentGetMachinesResult, err error) {
// Allow only for the owner agent.
// Note: having a bulk API call for this is utter madness, given that
// this check means we can only ever return a single object.
if !api.auth.AuthOwner(tag) {
err = common.ErrPerm
return
}
machine, err := api.st.Machine(state.MachineIdFromTag(tag))
if err != nil {
return
}
result.Life = params.Life(machine.Life().String())
result.Jobs = stateJobsToAPIParamsJobs(machine.Jobs())
return
}
func (svc *backingService) updated(st *State, store *multiwatcher.Store, id interface{}) error {
info := ¶ms.ServiceInfo{
Name: svc.Name,
Exposed: svc.Exposed,
CharmURL: svc.CharmURL.String(),
Life: params.Life(svc.Life.String()),
MinUnits: svc.MinUnits,
}
oldInfo := store.Get(info.EntityId())
needConfig := false
if oldInfo == nil {
// We're adding the entry for the first time,
// so fetch the associated child documents.
c, err := readConstraints(st, serviceGlobalKey(svc.Name))
if err != nil {
return err
}
info.Constraints = c
needConfig = true
} else {
// The entry already exists, so preserve the current status.
oldInfo := oldInfo.(*params.ServiceInfo)
info.Constraints = oldInfo.Constraints
if info.CharmURL == oldInfo.CharmURL {
// The charm URL remains the same - we can continue to
// use the same config settings.
info.Config = oldInfo.Config
} else {
// The charm URL has changed - we need to fetch the
// settings from the new charm's settings doc.
needConfig = true
}
}
if needConfig {
var err error
info.Config, _, err = readSettingsDoc(st, serviceSettingsKey(svc.Name, svc.CharmURL))
if err != nil {
return err
}
}
store.Update(info)
return nil
}
func (api *API) getEntity(tag string) (result params.AgentGetEntitiesResult, err error) {
// Allow only for the owner agent.
// Note: having a bulk API call for this is utter madness, given that
// this check means we can only ever return a single object.
if !api.auth.AuthOwner(tag) {
err = common.ErrPerm
return
}
entity0, err := api.st.FindEntity(tag)
if err != nil {
return
}
entity, ok := entity0.(state.Lifer)
if !ok {
err = common.NotSupportedError(tag, "life cycles")
return
}
result.Life = params.Life(entity.Life().String())
if machine, ok := entity.(*state.Machine); ok {
result.Jobs = stateJobsToAPIParamsJobs(machine.Jobs())
}
return
}
// Life returns the life status of every supplied entity, where available.
func (lg *LifeGetter) Life(args params.Entities) (params.LifeResults, error) {
result := params.LifeResults{
Results: make([]params.LifeResult, len(args.Entities)),
}
if len(args.Entities) == 0 {
return result, nil
}
canRead, err := lg.getCanRead()
if err != nil {
return params.LifeResults{}, err
}
for i, entity := range args.Entities {
err := ErrPerm
if canRead(entity.Tag) {
var lifer state.Lifer
lifer, err = lg.st.Lifer(entity.Tag)
if err == nil {
result.Results[i].Life = params.Life(lifer.Life().String())
}
}
result.Results[i].Error = ServerError(err)
}
return result, nil
}
// setUpScenario adds some entities to the state so that
// we can check that they all get pulled in by
// allWatcherStateBacking.getAll.
func (s *storeManagerStateSuite) setUpScenario(c *C) (entities entityInfoSlice) {
add := func(e params.EntityInfo) {
entities = append(entities, e)
}
m, err := s.State.AddMachine("series", JobManageEnviron)
c.Assert(err, IsNil)
c.Assert(m.Tag(), Equals, "machine-0")
err = m.SetProvisioned(instance.Id("i-"+m.Tag()), "fake_nonce", nil)
c.Assert(err, IsNil)
add(¶ms.MachineInfo{
Id: "0",
InstanceId: "i-machine-0",
Status: params.StatusPending,
})
wordpress, err := s.State.AddService("wordpress", AddTestingCharm(c, s.State, "wordpress"))
c.Assert(err, IsNil)
err = wordpress.SetExposed()
c.Assert(err, IsNil)
err = wordpress.SetMinUnits(3)
c.Assert(err, IsNil)
err = wordpress.SetConstraints(constraints.MustParse("mem=100M"))
c.Assert(err, IsNil)
setServiceConfigAttr(c, wordpress, "blog-title", "boring")
add(¶ms.ServiceInfo{
Name: "wordpress",
Exposed: true,
CharmURL: serviceCharmURL(wordpress).String(),
Life: params.Life(Alive.String()),
MinUnits: 3,
Constraints: constraints.MustParse("mem=100M"),
Config: charm.Settings{"blog-title": "boring"},
})
pairs := map[string]string{"x": "12", "y": "99"}
err = wordpress.SetAnnotations(pairs)
c.Assert(err, IsNil)
add(¶ms.AnnotationInfo{
Tag: "service-wordpress",
Annotations: pairs,
})
logging, err := s.State.AddService("logging", AddTestingCharm(c, s.State, "logging"))
c.Assert(err, IsNil)
add(¶ms.ServiceInfo{
Name: "logging",
CharmURL: serviceCharmURL(logging).String(),
Life: params.Life(Alive.String()),
Config: charm.Settings{},
})
eps, err := s.State.InferEndpoints([]string{"logging", "wordpress"})
c.Assert(err, IsNil)
rel, err := s.State.AddRelation(eps...)
c.Assert(err, IsNil)
add(¶ms.RelationInfo{
Key: "logging:logging-directory wordpress:logging-dir",
Endpoints: []params.Endpoint{
{ServiceName: "logging", Relation: charm.Relation{Name: "logging-directory", Role: "requirer", Interface: "logging", Optional: false, Limit: 1, Scope: "container"}},
{ServiceName: "wordpress", Relation: charm.Relation{Name: "logging-dir", Role: "provider", Interface: "logging", Optional: false, Limit: 0, Scope: "container"}}},
})
for i := 0; i < 2; i++ {
wu, err := wordpress.AddUnit()
c.Assert(err, IsNil)
c.Assert(wu.Tag(), Equals, fmt.Sprintf("unit-wordpress-%d", i))
m, err := s.State.AddMachine("series", JobHostUnits)
c.Assert(err, IsNil)
c.Assert(m.Tag(), Equals, fmt.Sprintf("machine-%d", i+1))
add(¶ms.UnitInfo{
Name: fmt.Sprintf("wordpress/%d", i),
Service: wordpress.Name(),
Series: m.Series(),
MachineId: m.Id(),
Ports: []instance.Port{},
Status: params.StatusPending,
})
pairs := map[string]string{"name": fmt.Sprintf("bar %d", i)}
err = wu.SetAnnotations(pairs)
c.Assert(err, IsNil)
add(¶ms.AnnotationInfo{
Tag: fmt.Sprintf("unit-wordpress-%d", i),
Annotations: pairs,
})
err = m.SetProvisioned(instance.Id("i-"+m.Tag()), "fake_nonce", nil)
c.Assert(err, IsNil)
err = m.SetStatus(params.StatusError, m.Tag())
c.Assert(err, IsNil)
add(¶ms.MachineInfo{
Id: fmt.Sprint(i + 1),
InstanceId: "i-" + m.Tag(),
Status: params.StatusError,
StatusInfo: m.Tag(),
})
err = wu.AssignToMachine(m)
c.Assert(err, IsNil)
deployer, ok := wu.DeployerTag()
c.Assert(ok, Equals, true)
c.Assert(deployer, Equals, fmt.Sprintf("machine-%d", i+1))
wru, err := rel.Unit(wu)
c.Assert(err, IsNil)
// Create the subordinate unit as a side-effect of entering
// scope in the principal's relation-unit.
err = wru.EnterScope(nil)
c.Assert(err, IsNil)
lu, err := s.State.Unit(fmt.Sprintf("logging/%d", i))
c.Assert(err, IsNil)
c.Assert(lu.IsPrincipal(), Equals, false)
deployer, ok = lu.DeployerTag()
c.Assert(ok, Equals, true)
c.Assert(deployer, Equals, fmt.Sprintf("unit-wordpress-%d", i))
add(¶ms.UnitInfo{
Name: fmt.Sprintf("logging/%d", i),
Service: "logging",
Series: "series",
Ports: []instance.Port{},
Status: params.StatusPending,
})
}
return
}
c.Assert(err, IsNil)
err = wordpress.SetExposed()
c.Assert(err, IsNil)
err = wordpress.SetMinUnits(42)
c.Assert(err, IsNil)
},
change: watcher.Change{
C: "services",
Id: "wordpress",
},
expectContents: []params.EntityInfo{
¶ms.ServiceInfo{
Name: "wordpress",
Exposed: true,
CharmURL: "local:series/series-wordpress-3",
Life: params.Life(Alive.String()),
MinUnits: 42,
Config: charm.Settings{},
},
},
}, {
about: "service is updated if it's in backing and in multiwatcher.Store",
add: []params.EntityInfo{¶ms.ServiceInfo{
Name: "wordpress",
Exposed: true,
CharmURL: "local:series/series-wordpress-3",
MinUnits: 47,
Constraints: constraints.MustParse("mem=99M"),
Config: charm.Settings{"blog-title": "boring"},
}},
setUp: func(c *C, st *State) {
Entity: ¶ms.MachineInfo{
Id: "Benji",
InstanceId: "Shazam",
Status: "error",
StatusInfo: "foo",
},
},
json: `["machine","change",{"Id":"Benji","InstanceId":"Shazam","Status":"error","StatusInfo":"foo"}]`,
}, {
about: "ServiceInfo Delta",
value: params.Delta{
Entity: ¶ms.ServiceInfo{
Name: "Benji",
Exposed: true,
CharmURL: "cs:series/name",
Life: params.Life(state.Dying.String()),
Constraints: constraints.MustParse("arch=arm mem=1024M"),
Config: charm.Settings{
"hello": "goodbye",
"foo": false,
},
},
},
json: `["service","change",{"CharmURL": "cs:series/name","Name":"Benji","Exposed":true,"Life":"dying","Constraints":{"arch":"arm", "mem": 1024},"Config": {"hello":"goodbye","foo":false}}]`,
}, {
about: "UnitInfo Delta",
value: params.Delta{
Entity: ¶ms.UnitInfo{
Name: "Benji",
Service: "Shazam",
Series: "precise",
