agola/internal/services/runservice/action/maintenance.go

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// Copyright 2019 Sorint.lab
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied
// See the License for the specific language governing permissions and
// limitations under the License.
package action
import (
"context"
"io"
"agola.io/agola/internal/etcd"
"agola.io/agola/internal/services/runservice/common"
"agola.io/agola/internal/util"
errors "golang.org/x/xerrors"
)
func (h *ActionHandler) MaintenanceMode(ctx context.Context, enable bool) error {
resp, err := h.e.Get(ctx, common.EtcdMaintenanceKey, 0)
if err != nil && !errors.Is(err, etcd.ErrKeyNotFound) {
return err
}
if enable && len(resp.Kvs) > 0 {
return util.NewErrBadRequest(errors.Errorf("maintenance mode already enabled"))
}
if !enable && len(resp.Kvs) == 0 {
return util.NewErrBadRequest(errors.Errorf("maintenance mode already disabled"))
}
if enable {
txResp, err := h.e.AtomicPut(ctx, common.EtcdMaintenanceKey, []byte{}, 0, nil)
if err != nil {
return err
}
if !txResp.Succeeded {
return errors.Errorf("failed to create maintenance mode key due to concurrent update")
}
}
if !enable {
txResp, err := h.e.AtomicDelete(ctx, common.EtcdMaintenanceKey, resp.Kvs[0].ModRevision)
if err != nil {
return err
}
if !txResp.Succeeded {
return errors.Errorf("failed to delete maintenance mode key due to concurrent update")
}
}
return nil
}
func (h *ActionHandler) Export(ctx context.Context, w io.Writer) error {
return h.dm.Export(ctx, w)
}
func (h *ActionHandler) Import(ctx context.Context, r io.Reader) error {
if !h.maintenanceMode {
return util.NewErrBadRequest(errors.Errorf("not in maintenance mode"))
}
return h.dm.Import(ctx, r)
}