open-consul/agent/leafcert/cached_roots.go

48 lines
1.4 KiB
Go

package leafcert
import (
"context"
"errors"
"github.com/hashicorp/consul/agent/cache"
cachetype "github.com/hashicorp/consul/agent/cache-types"
"github.com/hashicorp/consul/agent/structs"
)
// NewCachedRootsReader returns a RootsReader that sources data from the agent cache.
func NewCachedRootsReader(cache *cache.Cache, dc string) RootsReader {
return &agentCacheRootsReader{
cache: cache,
datacenter: dc,
}
}
type agentCacheRootsReader struct {
cache *cache.Cache
datacenter string
}
var _ RootsReader = (*agentCacheRootsReader)(nil)
func (r *agentCacheRootsReader) Get() (*structs.IndexedCARoots, error) {
// Background is fine here because this isn't a blocking query as no index is set.
// Therefore this will just either be a cache hit or return once the non-blocking query returns.
rawRoots, _, err := r.cache.Get(context.Background(), cachetype.ConnectCARootName, &structs.DCSpecificRequest{
Datacenter: r.datacenter,
})
if err != nil {
return nil, err
}
roots, ok := rawRoots.(*structs.IndexedCARoots)
if !ok {
return nil, errors.New("invalid RootCA response type")
}
return roots, nil
}
func (r *agentCacheRootsReader) Notify(ctx context.Context, correlationID string, ch chan<- cache.UpdateEvent) error {
return r.cache.Notify(ctx, cachetype.ConnectCARootName, &structs.DCSpecificRequest{
Datacenter: r.datacenter,
}, correlationID, ch)
}