Auth (#1147)

Implement the Auth interface, with JWT and service implementations.

* Update Auth Interface

* Define Auth Service Implementation

* Support Service Auth

* Add Auth Service Proto

* Remove erronious files

* Implement Auth Service Package

* Update Auth Interface

* Update Auth Interface. Add Validate, remove Add/Remove roles

* Make Revoke interface more explicit

* Refactor serializing and deserializing service accounts

* Fix srv name & update interface to be more explicit

* Require jwt public key for auth

* Rename Variables (Resource.ID => Resource.Name & ServiceAccount => Account)

* Implement JWT Auth Package

* Remove parent, add ID

* Update auth imports to v2. Add String() to auth interface

store/memory/memory.go

@@ -68,19 +68,26 @@ func (m *memoryStore) Read(key string, opts ...store.ReadOption) ([]*store.Recor
 
 	var vals []*memoryRecord
 
-	if !options.Prefix {
-		v, ok := m.values[key]
-		if !ok {
-			return nil, store.ErrNotFound
-		}
-		vals = []*memoryRecord{v}
-	} else {
+	if options.Prefix {
 		for _, v := range m.values {
 			if !strings.HasPrefix(v.r.Key, key) {
 				continue
 			}
 			vals = append(vals, v)
 		}
+	} else if options.Suffix {
+		for _, v := range m.values {
+			if !strings.HasSuffix(v.r.Key, key) {
+				continue
+			}
+			vals = append(vals, v)
+		}
+	} else {
+		v, ok := m.values[key]
+		if !ok {
+			return nil, store.ErrNotFound
+		}
+		vals = []*memoryRecord{v}
 	}
 
 	//nolint:prealloc

store/options.go

@@ -11,6 +11,8 @@ type Options struct {
 	Namespace string
 	// Prefix of the keys used
 	Prefix string
+	// Suffix of the keys used
+	Suffix string
 	// Alternative options
 	Context context.Context
 }
@@ -45,3 +47,10 @@ func ReadPrefix() ReadOption {
 		o.Prefix = true
 	}
 }
+
+// ReadSuffix uses the key as a suffix
+func ReadSuffix() ReadOption {
+	return func(o *ReadOptions) {
+		o.Suffix = true
+	}
+}

store/store.go

@@ -39,6 +39,8 @@ type Record struct {
 type ReadOptions struct {
 	// Read key as a prefix
 	Prefix bool
+	// Read key as a suffix
+	Suffix bool
 }
 
 type ReadOption func(o *ReadOptions)