func (s *serviceStatusGetterSuite) TestGetUnitStatusIsLeader(c *gc.C) {
// If the unit isn't the leader, it can't get it.
unit := s.Factory.MakeUnit(c, &factory.UnitParams{Status: &state.StatusInfo{
Status: state.StatusMaintenance,
}})
service, err := unit.Service()
c.Assert(err, jc.ErrorIsNil)
s.State.LeadershipClaimer().ClaimLeadership(
service.Name(),
unit.Name(),
time.Minute)
result, err := s.getter.Status(params.Entities{[]params.Entity{{
unit.Tag().String(),
}}})
c.Assert(err, jc.ErrorIsNil)
c.Assert(result.Results, gc.HasLen, 1)
r := result.Results[0]
c.Assert(r.Error, gc.IsNil)
c.Assert(r.Service.Error, gc.IsNil)
c.Assert(r.Service.Status, gc.Equals, params.Status(state.StatusMaintenance))
units := r.Units
c.Assert(units, gc.HasLen, 1)
status, ok := units[unit.Name()]
c.Assert(ok, jc.IsTrue)
c.Assert(status.Error, gc.IsNil)
c.Assert(status.Status, gc.Equals, params.Status(state.StatusMaintenance))
}
func serviceStatus(s *ServiceStatusGetter, args params.Entities, getService serviceGetter, isLeaderCheck isLeaderFunc) (params.ServiceStatusResults, error) {
results := params.ServiceStatusResults{
Results: make([]params.ServiceStatusResult, len(args.Entities)),
}
canAccess, err := s.getcanAccess()
if err != nil {
return params.ServiceStatusResults{}, err
}
for i, serviceUnit := range args.Entities {
leader, err := isLeaderCheck(s.st, serviceUnit.Tag)
if err != nil {
results.Results[i].Error = ServerError(err)
continue
}
if !leader {
results.Results[i].Error = ServerError(ErrIsNotLeader)
continue
}
var service StatusService
service, err = getService(s.st, serviceUnit.Tag)
if err != nil {
results.Results[i].Error = ServerError(err)
continue
}
if !canAccess(service.Tag()) {
results.Results[i].Error = ServerError(ErrPerm)
continue
}
serviceStatus, unitStatuses, err := service.ServiceAndUnitsStatus()
if err != nil {
results.Results[i].Service.Error = ServerError(err)
results.Results[i].Error = ServerError(err)
continue
}
results.Results[i].Service.Status = params.Status(serviceStatus.Status)
results.Results[i].Service.Info = serviceStatus.Message
results.Results[i].Service.Data = serviceStatus.Data
results.Results[i].Service.Since = serviceStatus.Since
results.Results[i].Units = make(map[string]params.StatusResult, len(unitStatuses))
for uTag, r := range unitStatuses {
ur := params.StatusResult{
Status: params.Status(r.Status),
Info: r.Message,
Data: r.Data,
Since: r.Since,
}
results.Results[i].Units[uTag] = ur
}
}
return results, nil
}
// processUnitAndAgentStatus retrieves status information for both unit and unitAgents.
func processUnitAndAgentStatus(unit *state.Unit, status *params.UnitStatus) {
status.UnitAgent, status.Workload = processUnitStatus(unit)
// Legacy fields required until Juju 2.0.
// We only display pending, started, error, stopped.
var ok bool
legacyState, ok := state.TranslateToLegacyAgentState(
state.Status(status.UnitAgent.Status),
state.Status(status.Workload.Status),
status.Workload.Info,
)
if !ok {
logger.Warningf(
"translate to legacy status encounted unexpected workload status %q and agent status %q",
status.Workload.Status, status.UnitAgent.Status)
}
status.AgentState = params.Status(legacyState)
if status.AgentState == params.StatusError {
status.AgentStateInfo = status.Workload.Info
}
status.AgentVersion = status.UnitAgent.Version
status.Life = status.UnitAgent.Life
status.Err = status.UnitAgent.Err
processUnitLost(unit, status)
return
}
func storageDetailsFromLegacy(legacy params.LegacyStorageDetails) params.StorageDetails {
nowUTC := time.Now().UTC()
details := params.StorageDetails{
legacy.StorageTag,
legacy.OwnerTag,
legacy.Kind,
params.EntityStatus{
Status: params.Status(legacy.Status),
Since: &nowUTC,
},
legacy.Persistent,
nil,
}
if legacy.UnitTag != "" {
details.Attachments = map[string]params.StorageAttachmentDetails{
legacy.UnitTag: params.StorageAttachmentDetails{
legacy.StorageTag,
legacy.UnitTag,
"", // machine is unknown in legacy
legacy.Location,
},
}
}
return details
}
// makeStatusForEntity creates status information for machines, units.
func makeStatusForEntity(agent *api.AgentStatus, getter state.StatusGetter) {
statusInfo, err := getter.Status()
agent.Err = err
agent.Status = params.Status(statusInfo.Status)
agent.Info = statusInfo.Message
agent.Data = filterStatusData(statusInfo.Data)
agent.Since = statusInfo.Since
}
// populateStatusFromGetter creates status information for machines, units.
func populateStatusFromGetter(agent *params.AgentStatus, getter state.StatusGetter) {
statusInfo, err := getter.Status()
agent.Err = err
agent.Status = params.Status(statusInfo.Status)
agent.Info = statusInfo.Message
agent.Data = filterStatusData(statusInfo.Data)
agent.Since = statusInfo.Since
}
// EntityStatusFromState converts a state.StatusInfo into a params.EntityStatus.
func EntityStatusFromState(status state.StatusInfo) params.EntityStatus {
return params.EntityStatus{
params.Status(status.Status),
status.Message,
status.Data,
status.Since,
}
}
// SetUnitStatus will set the given status for this unit.
func (ctx *HookContext) SetUnitStatus(status jujuc.StatusInfo) error {
ctx.hasRunStatusSet = true
logger.Debugf("[WORKLOAD-STATUS] %s: %s", status.Status, status.Info)
return ctx.unit.SetUnitStatus(
params.Status(status.Status),
status.Info,
status.Data,
)
}
func (context *statusContext) processService(service *state.Service) (status params.ServiceStatus) {
serviceCharmURL, _ := service.CharmURL()
status.Charm = serviceCharmURL.String()
status.Exposed = service.IsExposed()
status.Life = processLife(service)
latestCharm, ok := context.latestCharms[*serviceCharmURL.WithRevision(-1)]
if ok && latestCharm != serviceCharmURL.String() {
status.CanUpgradeTo = latestCharm
}
var err error
status.Relations, status.SubordinateTo, err = context.processServiceRelations(service)
if err != nil {
status.Err = err
return
}
networks, err := service.Networks()
if err != nil {
status.Err = err
return
}
var cons constraints.Value
if service.IsPrincipal() {
// Only principals can have constraints.
cons, err = service.Constraints()
if err != nil {
status.Err = err
return
}
}
// TODO(dimitern): Drop support for this in a follow-up.
if len(networks) > 0 || cons.HaveNetworks() {
// Only the explicitly requested networks (using "juju deploy
// <svc> --networks=...") will be enabled, and altough when
// specified, networks constraints will be used for instance
// selection, they won't be actually enabled.
status.Networks = params.NetworksSpecification{
Enabled: networks,
Disabled: append(cons.IncludeNetworks(), cons.ExcludeNetworks()...),
}
}
if service.IsPrincipal() {
status.Units = context.processUnits(context.units[service.Name()], serviceCharmURL.String())
serviceStatus, err := service.Status()
if err != nil {
status.Err = err
return
}
status.Status.Status = params.Status(serviceStatus.Status)
status.Status.Info = serviceStatus.Message
status.Status.Data = serviceStatus.Data
status.Status.Since = serviceStatus.Since
status.MeterStatuses = context.processUnitMeterStatuses(context.units[service.Name()])
}
return status
}
func (s *statusGetterSuite) TestGetMachineStatus(c *gc.C) {
machine := s.Factory.MakeMachine(c, nil)
result, err := s.getter.Status(params.Entities{[]params.Entity{{
machine.Tag().String(),
}}})
c.Assert(err, jc.ErrorIsNil)
c.Assert(result.Results, gc.HasLen, 1)
status := result.Results[0]
c.Assert(status.Error, gc.IsNil)
c.Assert(status.Status, gc.Equals, params.Status(state.StatusPending))
}
func checkStatusInfo(c *gc.C, obtained []params.AgentStatus, expected []state.StatusInfo) {
c.Assert(len(obtained), gc.Equals, len(expected))
lastTimestamp := int64(0)
for i, obtainedInfo := range obtained {
thisTimeStamp := obtainedInfo.Since.Unix()
c.Assert(thisTimeStamp >= lastTimestamp, jc.IsTrue)
lastTimestamp = thisTimeStamp
obtainedInfo.Since = nil
c.Assert(obtainedInfo.Status, gc.Equals, params.Status(expected[i].Status))
c.Assert(obtainedInfo.Info, gc.Equals, expected[i].Message)
}
}
func (s *statusGetterSuite) TestGetServiceStatus(c *gc.C) {
service := s.Factory.MakeService(c, &factory.ServiceParams{Status: &state.StatusInfo{
Status: state.StatusMaintenance,
}})
result, err := s.getter.Status(params.Entities{[]params.Entity{{
service.Tag().String(),
}}})
c.Assert(err, jc.ErrorIsNil)
c.Assert(result.Results, gc.HasLen, 1)
status := result.Results[0]
c.Assert(status.Error, gc.IsNil)
c.Assert(status.Status, gc.Equals, params.Status(state.StatusMaintenance))
}
func agentStatusFromStatusInfo(s []state.StatusInfo, kind params.HistoryKind) []params.AgentStatus {
result := []params.AgentStatus{}
for _, v := range s {
result = append(result, params.AgentStatus{
Status: params.Status(v.Status),
Info: v.Message,
Data: v.Data,
Since: v.Since,
Kind: kind,
})
}
return result
}
func (s *statusGetterSuite) TestGetUnitStatus(c *gc.C) {
// The status has to be a valid workload status, because get status
// on the unit returns the workload status not the agent status as it
// does on a machine.
unit := s.Factory.MakeUnit(c, &factory.UnitParams{Status: &state.StatusInfo{
Status: state.StatusMaintenance,
}})
result, err := s.getter.Status(params.Entities{[]params.Entity{{
unit.Tag().String(),
}}})
c.Assert(err, jc.ErrorIsNil)
c.Assert(result.Results, gc.HasLen, 1)
status := result.Results[0]
c.Assert(status.Error, gc.IsNil)
c.Assert(status.Status, gc.Equals, params.Status(state.StatusMaintenance))
}
func (s *statusGetterSuite) TestBulk(c *gc.C) {
s.badTag = names.NewMachineTag("42")
machine := s.Factory.MakeMachine(c, nil)
result, err := s.getter.Status(params.Entities{[]params.Entity{{
s.badTag.String(),
}, {
machine.Tag().String(),
}, {
"bad-tag",
}}})
c.Assert(err, jc.ErrorIsNil)
c.Assert(result.Results, gc.HasLen, 3)
c.Assert(result.Results[0].Error, jc.Satisfies, params.IsCodeUnauthorized)
c.Assert(result.Results[1].Error, gc.IsNil)
c.Assert(result.Results[1].Status, gc.Equals, params.Status(state.StatusPending))
c.Assert(result.Results[2].Error, gc.ErrorMatches, `"bad-tag" is not a valid tag`)
}
func (s *StatusGetter) getEntityStatus(tag names.Tag) params.StatusResult {
var result params.StatusResult
entity, err := s.st.FindEntity(tag)
if err != nil {
result.Error = ServerError(err)
return result
}
switch getter := entity.(type) {
case state.StatusGetter:
statusInfo, err := getter.Status()
result.Status = params.Status(statusInfo.Status)
result.Info = statusInfo.Message
result.Data = statusInfo.Data
result.Since = statusInfo.Since
result.Error = ServerError(err)
default:
result.Error = ServerError(NotSupportedError(tag, fmt.Sprintf("getting status, %T", getter)))
}
return result
}
// MachinesWithTransientErrors returns status data for machines with provisioning
// errors which are transient.
func (p *ProvisionerAPI) MachinesWithTransientErrors() (params.StatusResults, error) {
var results params.StatusResults
canAccessFunc, err := p.getAuthFunc()
if err != nil {
return results, err
}
// TODO (wallyworld) - add state.State API for more efficient machines query
machines, err := p.st.AllMachines()
if err != nil {
return results, err
}
for _, machine := range machines {
if !canAccessFunc(machine.Tag()) {
continue
}
if _, provisionedErr := machine.InstanceId(); provisionedErr == nil {
// Machine may have been provisioned but machiner hasn't set the
// status to Started yet.
continue
}
var result params.StatusResult
statusInfo, err := machine.Status()
if err != nil {
continue
}
result.Status = params.Status(statusInfo.Status)
result.Info = statusInfo.Message
result.Data = statusInfo.Data
if result.Status != params.StatusError {
continue
}
// Transient errors are marked as such in the status data.
if transient, ok := result.Data["transient"].(bool); !ok || !transient {
continue
}
result.Id = machine.Id()
result.Life = params.Life(machine.Life().String())
results.Results = append(results.Results, result)
}
return results, nil
}
// SetServiceStatus will set the given status to the service to which this
// unit's belong, only if this unit is the leader.
func (ctx *HookContext) SetServiceStatus(status jujuc.StatusInfo) error {
logger.Debugf("[SERVICE-STATUS] %s: %s", status.Status, status.Info)
isLeader, err := ctx.IsLeader()
if err != nil {
return errors.Annotatef(err, "cannot determine leadership")
}
if !isLeader {
return ErrIsNotLeader
}
service, err := ctx.unit.Service()
if err != nil {
return errors.Trace(err)
}
return service.SetStatus(
ctx.unit.Name(),
params.Status(status.Status),
status.Info,
status.Data,
)
}
func (s *UnitSuite) TestGetSetStatusWhileAlive(c *gc.C) {
err := s.unit.SetStatus(params.StatusError, "", nil)
c.Assert(err, gc.ErrorMatches, `cannot set status "error" without info`)
err = s.unit.SetStatus(params.StatusPending, "", nil)
c.Assert(err, gc.ErrorMatches, `cannot set status "pending"`)
err = s.unit.SetStatus(params.StatusDown, "", nil)
c.Assert(err, gc.ErrorMatches, `cannot set status "down"`)
err = s.unit.SetStatus(params.Status("vliegkat"), "orville", nil)
c.Assert(err, gc.ErrorMatches, `cannot set invalid status "vliegkat"`)
status, info, data, err := s.unit.Status()
c.Assert(err, gc.IsNil)
c.Assert(status, gc.Equals, params.StatusPending)
c.Assert(info, gc.Equals, "")
c.Assert(data, gc.HasLen, 0)
err = s.unit.SetStatus(params.StatusStarted, "", nil)
c.Assert(err, gc.IsNil)
status, info, data, err = s.unit.Status()
c.Assert(err, gc.IsNil)
c.Assert(status, gc.Equals, params.StatusStarted)
c.Assert(info, gc.Equals, "")
c.Assert(data, gc.HasLen, 0)
err = s.unit.SetStatus(params.StatusError, "test-hook failed", params.StatusData{
"foo": "bar",
})
c.Assert(err, gc.IsNil)
status, info, data, err = s.unit.Status()
c.Assert(err, gc.IsNil)
c.Assert(status, gc.Equals, params.StatusError)
c.Assert(info, gc.Equals, "test-hook failed")
c.Assert(data, gc.DeepEquals, params.StatusData{
"foo": "bar",
})
}
func (f *summaryFormatter) printStateToCount(m map[params.Status]int) {
for _, status := range common.SortStringsNaturally(stringKeysFromMap(m)) {
numInStatus := m[params.Status(status)]
f.delimitValuesWithTabs(status+":", fmt.Sprintf(" %d ", numInStatus))
}
}
// Status returns the status of the Service for each given Unit tag.
func (s *ServiceStatusGetter) Status(args params.Entities) (params.ServiceStatusResults, error) {
result := params.ServiceStatusResults{
Results: make([]params.ServiceStatusResult, len(args.Entities)),
}
canAccess, err := s.getCanAccess()
if err != nil {
return params.ServiceStatusResults{}, err
}
for i, arg := range args.Entities {
// TODO(fwereade): the auth is basically nonsense, and basically only
// works by coincidence (and is happening at the wrong layer anyway).
// Read carefully.
// We "know" that arg.Tag is either the calling unit or its service
// (because getCanAccess is authUnitOrService, and we'll fail out if
// it isn't); and, in practice, it's always going to be the calling
// unit (because, /sigh, we don't actually use service tags to refer
// to services in this method).
tag, err := names.ParseTag(arg.Tag)
if err != nil {
result.Results[i].Error = ServerError(err)
continue
}
if !canAccess(tag) {
result.Results[i].Error = ServerError(ErrPerm)
continue
}
unitTag, ok := tag.(names.UnitTag)
if !ok {
// No matter what the canAccess says, if this entity is not
// a unit, we say "NO".
result.Results[i].Error = ServerError(ErrPerm)
continue
}
unitId := unitTag.Id()
// Now we have the unit, we can get the service that should have been
// specified in the first place...
serviceId, err := names.UnitService(unitId)
if err != nil {
result.Results[i].Error = ServerError(err)
continue
}
service, err := s.st.Service(serviceId)
if err != nil {
result.Results[i].Error = ServerError(err)
continue
}
// ...so we can check the unit's service leadership...
checker := s.st.LeadershipChecker()
token := checker.LeadershipCheck(serviceId, unitId)
if err := token.Check(nil); err != nil {
// TODO(fwereade) this should probably be ErrPerm is certain cases,
// but I don't think I implemented an exported ErrNotLeader. I
// should have done, though.
result.Results[i].Error = ServerError(err)
continue
}
// ...and collect the results.
serviceStatus, unitStatuses, err := service.ServiceAndUnitsStatus()
if err != nil {
result.Results[i].Service.Error = ServerError(err)
result.Results[i].Error = ServerError(err)
continue
}
result.Results[i].Service.Status = params.Status(serviceStatus.Status)
result.Results[i].Service.Info = serviceStatus.Message
result.Results[i].Service.Data = serviceStatus.Data
result.Results[i].Service.Since = serviceStatus.Since
result.Results[i].Units = make(map[string]params.StatusResult, len(unitStatuses))
for uTag, r := range unitStatuses {
ur := params.StatusResult{
Status: params.Status(r.Status),
Info: r.Message,
Data: r.Data,
Since: r.Since,
}
result.Results[i].Units[uTag] = ur
}
}
return result, nil
}
