| Scott Baker | eee8dd8 | 2019-09-24 12:52:34 -0700 | [diff] [blame^] | 1 | // Copyright 2018 The etcd Authors |
| 2 | // |
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | // you may not use this file except in compliance with the License. |
| 5 | // You may obtain a copy of the License at |
| 6 | // |
| 7 | // http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | // |
| 9 | // Unless required by applicable law or agreed to in writing, software |
| 10 | // distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | // See the License for the specific language governing permissions and |
| 13 | // limitations under the License. |
| 14 | |
| 15 | package systemd |
| 16 | |
| 17 | import "net" |
| 18 | |
| 19 | // DialJournal returns no error if the process can dial journal socket. |
| 20 | // Returns an error if dial failed, whichi indicates journald is not available |
| 21 | // (e.g. run embedded etcd as docker daemon). |
| 22 | // Reference: https://github.com/coreos/go-systemd/blob/master/journal/journal.go. |
| 23 | func DialJournal() error { |
| 24 | conn, err := net.Dial("unixgram", "/run/systemd/journal/socket") |
| 25 | if conn != nil { |
| 26 | defer conn.Close() |
| 27 | } |
| 28 | return err |
| 29 | } |