open-consul/api/snapshot.go

58 lines
1.5 KiB
Go

// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: MPL-2.0
package api
import (
"io"
)
// Snapshot can be used to query the /v1/snapshot endpoint to take snapshots of
// Consul's internal state and restore snapshots for disaster recovery.
type Snapshot struct {
c *Client
}
// Snapshot returns a handle that exposes the snapshot endpoints.
func (c *Client) Snapshot() *Snapshot {
return &Snapshot{c}
}
// Save requests a new snapshot and provides an io.ReadCloser with the snapshot
// data to save. If this doesn't return an error, then it's the responsibility
// of the caller to close it. Only a subset of the QueryOptions are supported:
// Datacenter, AllowStale, and Token.
func (s *Snapshot) Save(q *QueryOptions) (io.ReadCloser, *QueryMeta, error) {
r := s.c.newRequest("GET", "/v1/snapshot")
r.setQueryOptions(q)
rtt, resp, err := s.c.doRequest(r)
if err != nil {
return nil, nil, err
}
if err := requireOK(resp); err != nil {
return nil, nil, err
}
qm := &QueryMeta{}
parseQueryMeta(resp, qm)
qm.RequestTime = rtt
return resp.Body, qm, nil
}
// Restore streams in an existing snapshot and attempts to restore it.
func (s *Snapshot) Restore(q *WriteOptions, in io.Reader) error {
r := s.c.newRequest("PUT", "/v1/snapshot")
r.body = in
r.header.Set("Content-Type", "application/octet-stream")
r.setWriteOptions(q)
_, resp, err := s.c.doRequest(r)
if err != nil {
return err
}
if err := requireOK(resp); err != nil {
return err
}
return nil
}