func (*instanceIdGetterSuite) TestInstanceId(c *gc.C) {
st := &fakeState{
entities: map[string]entityWithError{
"x0": &fakeInstanceIdGetter{instanceId: "foo"},
"x1": &fakeInstanceIdGetter{instanceId: "bar"},
"x2": &fakeInstanceIdGetter{instanceId: "baz", err: "x2 error"},
"x3": &fakeInstanceIdGetter{fetchError: "x3 error"},
},
}
getCanRead := func() (common.AuthFunc, error) {
return func(tag string) bool {
switch tag {
case "x0", "x2", "x3":
return true
}
return false
}, nil
}
ig := common.NewInstanceIdGetter(st, getCanRead)
entities := params.Entities{[]params.Entity{
{"x0"}, {"x1"}, {"x2"}, {"x3"}, {"x4"},
}}
results, err := ig.InstanceId(entities)
c.Assert(err, gc.IsNil)
c.Assert(results, jc.DeepEquals, params.StringResults{
Results: []params.StringResult{
{Result: "foo"},
{Error: apiservertesting.ErrUnauthorized},
{Error: ¶ms.Error{Message: "x2 error"}},
{Error: ¶ms.Error{Message: "x3 error"}},
{Error: apiservertesting.ErrUnauthorized},
},
})
}
func (*instanceIdGetterSuite) TestInstanceIdError(c *gc.C) {
getCanRead := func() (common.AuthFunc, error) {
return nil, fmt.Errorf("pow")
}
ig := common.NewInstanceIdGetter(&fakeState{}, getCanRead)
_, err := ig.InstanceId(params.Entities{[]params.Entity{{"x0"}}})
c.Assert(err, gc.ErrorMatches, "pow")
}
// NewProvisionerAPI creates a new server-side ProvisionerAPI facade.
func NewProvisionerAPI(
st *state.State,
resources *common.Resources,
authorizer common.Authorizer,
) (*ProvisionerAPI, error) {
if !authorizer.AuthMachineAgent() && !authorizer.AuthEnvironManager() {
return nil, common.ErrPerm
}
getAuthFunc := func() (common.AuthFunc, error) {
isEnvironManager := authorizer.AuthEnvironManager()
isMachineAgent := authorizer.AuthMachineAgent()
authEntityTag := authorizer.GetAuthTag()
return func(tag string) bool {
if isMachineAgent && tag == authEntityTag {
// A machine agent can always access its own machine.
return true
}
_, id, err := names.ParseTag(tag, names.MachineTagKind)
if err != nil {
return false
}
parentId := state.ParentId(id)
if parentId == "" {
// All top-level machines are accessible by the
// environment manager.
return isEnvironManager
}
// All containers with the authenticated machine as a
// parent are accessible by it.
return isMachineAgent && names.MachineTag(parentId) == authEntityTag
}, nil
}
// Both provisioner types can watch the environment.
getCanWatch := common.AuthAlways(true)
// Only the environment provisioner can read secrets.
getCanReadSecrets := common.AuthAlways(authorizer.AuthEnvironManager())
return &ProvisionerAPI{
Remover: common.NewRemover(st, false, getAuthFunc),
StatusSetter: common.NewStatusSetter(st, getAuthFunc),
DeadEnsurer: common.NewDeadEnsurer(st, getAuthFunc),
PasswordChanger: common.NewPasswordChanger(st, getAuthFunc),
LifeGetter: common.NewLifeGetter(st, getAuthFunc),
StateAddresser: common.NewStateAddresser(st),
APIAddresser: common.NewAPIAddresser(st, resources),
ToolsGetter: common.NewToolsGetter(st, getAuthFunc),
EnvironWatcher: common.NewEnvironWatcher(st, resources, getCanWatch, getCanReadSecrets),
EnvironMachinesWatcher: common.NewEnvironMachinesWatcher(st, resources, getCanReadSecrets),
InstanceIdGetter: common.NewInstanceIdGetter(st, getAuthFunc),
st: st,
resources: resources,
authorizer: authorizer,
getAuthFunc: getAuthFunc,
getCanWatchMachines: getCanReadSecrets,
}, nil
}
// NewFirewallerAPI creates a new server-side FirewallerAPI facade.
func NewFirewallerAPI(
st *state.State,
resources *common.Resources,
authorizer common.Authorizer,
) (*FirewallerAPI, error) {
if !authorizer.AuthEnvironManager() {
// Firewaller must run as environment manager.
return nil, common.ErrPerm
}
// Set up the various authorization checkers.
accessUnit := getAuthFuncForTagKind(names.UnitTagKind)
accessService := getAuthFuncForTagKind(names.ServiceTagKind)
accessMachine := getAuthFuncForTagKind(names.MachineTagKind)
accessEnviron := getAuthFuncForTagKind("")
accessUnitOrService := common.AuthEither(accessUnit, accessService)
accessUnitServiceOrMachine := common.AuthEither(accessUnitOrService, accessMachine)
// Life() is supported for units, services or machines.
lifeGetter := common.NewLifeGetter(
st,
accessUnitServiceOrMachine,
)
// EnvironConfig() and WatchForEnvironConfigChanges() are allowed
// with unrestriced access.
environWatcher := common.NewEnvironWatcher(
st,
resources,
accessEnviron,
accessEnviron,
)
// Watch() is supported for units or services.
entityWatcher := common.NewAgentEntityWatcher(
st,
resources,
accessUnitOrService,
)
// WatchUnits() is supported for machines.
unitsWatcher := common.NewUnitsWatcher(st,
resources,
accessMachine,
)
// WatchEnvironMachines() is allowed with unrestricted access.
machinesWatcher := common.NewEnvironMachinesWatcher(
st,
resources,
accessEnviron,
)
// InstanceId() is supported for machines.
instanceIdGetter := common.NewInstanceIdGetter(
st,
accessMachine,
)
return &FirewallerAPI{
LifeGetter: lifeGetter,
EnvironWatcher: environWatcher,
AgentEntityWatcher: entityWatcher,
UnitsWatcher: unitsWatcher,
EnvironMachinesWatcher: machinesWatcher,
InstanceIdGetter: instanceIdGetter,
st: st,
resources: resources,
authorizer: authorizer,
accessUnit: accessUnit,
accessService: accessService,
}, nil
}