Add list support for mysql roles

builtin/logical/mysql/backend.go

@@ -29,6 +29,7 @@ func Backend() *framework.Backend {
 		Paths: []*framework.Path{
 			pathConfigConnection(&b),
 			pathConfigLease(&b),
+			pathListRoles(&b),
 			pathRoles(&b),
 			pathRoleCreate(&b),
 		},

builtin/logical/mysql/backend_test.go

@@ -12,7 +12,7 @@ import (
 )
 
 func TestBackend_basic(t *testing.T) {
-	b := Backend()
+	b, _ := Factory(logical.TestBackendConfig())
 
 	logicaltest.Test(t, logicaltest.TestCase{
 		PreCheck: func() { testAccPreCheck(t) },

builtin/logical/mysql/path_roles.go

@@ -8,6 +8,19 @@ import (
 	"github.com/hashicorp/vault/logical/framework"
 )
 
+func pathListRoles(b *backend) *framework.Path {
+	return &framework.Path{
+		Pattern: "roles/?$",
+
+		Callbacks: map[logical.Operation]framework.OperationFunc{
+			logical.ListOperation: b.pathRoleList,
+		},
+
+		HelpSynopsis:    pathRoleHelpSyn,
+		HelpDescription: pathRoleHelpDesc,
+	}
+}
+
 func pathRoles(b *backend) *framework.Path {
 	return &framework.Path{
 		Pattern: "roles/" + framework.GenericNameRegex("name"),
@@ -25,7 +38,7 @@ func pathRoles(b *backend) *framework.Path {
 
 		Callbacks: map[logical.Operation]framework.OperationFunc{
 			logical.ReadOperation:   b.pathRoleRead,
-			logical.UpdateOperation:  b.pathRoleCreate,
+			logical.UpdateOperation: b.pathRoleCreate,
 			logical.DeleteOperation: b.pathRoleDelete,
 		},
 
@@ -78,6 +91,16 @@ func (b *backend) pathRoleRead(
 	}, nil
 }
 
+func (b *backend) pathRoleList(
+	req *logical.Request, d *framework.FieldData) (*logical.Response, error) {
+	entries, err := req.Storage.List("role/")
+	if err != nil {
+		return nil, err
+	}
+
+	return logical.ListResponse(entries), nil
+}
+
 func (b *backend) pathRoleCreate(
 	req *logical.Request, data *framework.FieldData) (*logical.Response, error) {
 	name := data.Get("name").(string)