vbatts/pkg
1
0
Fork 0
Code Pull requests Releases Activity

Allow containers to join the net namespace of other conatiners

Browse source 
Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
This commit is contained in:
Michael Crosby 2014-03-21 00:48:17 +00:00
parent acff50596b
commit a740cd779e
1 changed files with 1 additions and 9 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
libcontainer/network/netns.go
View file

@ -14,13 +14,7 @@ type NetNS struct {
}
func (v *NetNS) Create(n *libcontainer.Network, nspid int, context libcontainer.Context) error {
nsname, exists := n.Context["nsname"]
if !exists {
return fmt.Errorf("nspath does not exist in network context")
}
context["nspath"] = fmt.Sprintf("/var/run/netns/%s", nsname)
context["nspath"] = n.Context["nspath"]
return nil
}
@ -29,12 +23,10 @@ func (v *NetNS) Initialize(config *libcontainer.Network, context libcontainer.Co
if !exists {
return fmt.Errorf("nspath does not exist in network context")
}
f, err := os.OpenFile(nspath, os.O_RDONLY, 0)
if err != nil {
return fmt.Errorf("failed get network namespace fd: %v", err)
}
if err := system.Setns(f.Fd(), syscall.CLONE_NEWNET); err != nil {
return fmt.Errorf("failed to setns current network namespace: %v", err)
}