/
namespaces.go
46 lines (42 loc) · 1.39 KB
/
namespaces.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
//
// Copyright © 2016-2017 Ikey Doherty <ikey@solus-project.com>
//
// 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 builder
import (
log "github.com/Sirupsen/logrus"
"syscall"
)
// ConfigureNamespace will unshare() context, entering a new namespace
func ConfigureNamespace() error {
log.Debug("Configuring container namespace")
if err := syscall.Unshare(syscall.CLONE_NEWNS | syscall.CLONE_NEWIPC); err != nil {
log.WithFields(log.Fields{
"error": err,
}).Error("Failed to configure namespace")
return err
}
return nil
}
// DropNetworking will unshare() the context networking capabilities
func DropNetworking() error {
log.Debug("Dropping container networking")
if err := syscall.Unshare(syscall.CLONE_NEWNET | syscall.CLONE_NEWUTS); err != nil {
log.WithFields(log.Fields{
"error": err,
}).Error("Failed to drop networking capabilities")
return err
}
return nil
}