/
register.go
61 lines (54 loc) · 1.91 KB
/
register.go
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// Copyright 2022 Canonical Ltd.
// Licensed under the AGPLv3, see LICENCE file for details.
package storage
import (
"reflect"
"github.com/juju/errors"
apiservererrors "github.com/juju/juju/apiserver/errors"
"github.com/juju/juju/apiserver/facade"
"github.com/juju/juju/caas"
"github.com/juju/juju/environs"
"github.com/juju/juju/environs/context"
"github.com/juju/juju/state"
"github.com/juju/juju/state/stateenvirons"
"github.com/juju/juju/storage"
"github.com/juju/juju/storage/poolmanager"
)
// Register is called to expose a package of facades onto a given registry.
func Register(registry facade.FacadeRegistry) {
registry.MustRegister("Storage", 6, func(ctx facade.Context) (facade.Facade, error) {
return newStorageAPI(ctx) // modify Remove to support force and maxWait; add DetachStorage to support force and maxWait.
}, reflect.TypeOf((*StorageAPI)(nil)))
}
// newStorageAPI returns a new storage API facade.
func newStorageAPI(ctx facade.Context) (*StorageAPI, error) {
st := ctx.State()
model, err := st.Model()
if err != nil {
return nil, errors.Trace(err)
}
storageMetadata := func() (poolmanager.PoolManager, storage.ProviderRegistry, error) {
model, err := st.Model()
if err != nil {
return nil, nil, errors.Trace(err)
}
registry, err := stateenvirons.NewStorageProviderRegistryForModel(
model,
stateenvirons.GetNewEnvironFunc(environs.New),
stateenvirons.GetNewCAASBrokerFunc(caas.New))
if err != nil {
return nil, nil, errors.Trace(err)
}
pm := poolmanager.New(state.NewStateSettings(st), registry)
return pm, registry, nil
}
storageAccessor, err := getStorageAccessor(st)
if err != nil {
return nil, errors.Annotate(err, "getting backend")
}
authorizer := ctx.Auth()
if !authorizer.AuthClient() {
return nil, apiservererrors.ErrPerm
}
return NewStorageAPI(stateShim{st}, model.Type(), storageAccessor, storageMetadata, authorizer, context.CallContext(st)), nil
}