diff options
Diffstat (limited to 'pkg/netns/netns_linux.go')
| -rw-r--r-- | pkg/netns/netns_linux.go | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/pkg/netns/netns_linux.go b/pkg/netns/netns_linux.go index a62296549..e765bd46f 100644 --- a/pkg/netns/netns_linux.go +++ b/pkg/netns/netns_linux.go @@ -126,9 +126,12 @@ func NewNS() (ns.NetNS, error) { // Don't unlock. By not unlocking, golang will kill the OS thread when the // goroutine is done (for go1.10+) + threadNsPath := getCurrentThreadNetNSPath() + var origNS ns.NetNS - origNS, err = ns.GetNS(getCurrentThreadNetNSPath()) + origNS, err = ns.GetNS(threadNsPath) if err != nil { + logrus.Warnf("cannot open current network namespace %s: %q", threadNsPath, err) return } defer func() { @@ -140,13 +143,19 @@ func NewNS() (ns.NetNS, error) { // create a new netns on the current thread err = unix.Unshare(unix.CLONE_NEWNET) if err != nil { + logrus.Warnf("cannot create a new network namespace: %q", err) return } // Put this thread back to the orig ns, since it might get reused (pre go1.10) defer func() { if err := origNS.Set(); err != nil { - logrus.Warnf("unable to set namespace: %q", err) + if rootless.IsRootless() && strings.Contains(err.Error(), "operation not permitted") { + // When running in rootless mode it will fail to re-join + // the network namespace owned by root on the host. + return + } + logrus.Warnf("unable to reset namespace: %q", err) } }() @@ -154,7 +163,7 @@ func NewNS() (ns.NetNS, error) { // mount point. This causes the namespace to persist, even when there // are no threads in the ns. Make this a shared mount; it needs to be // back-propogated to the host - err = unix.Mount(getCurrentThreadNetNSPath(), nsPath, "none", unix.MS_BIND|unix.MS_SHARED|unix.MS_REC, "") + err = unix.Mount(threadNsPath, nsPath, "none", unix.MS_BIND|unix.MS_SHARED|unix.MS_REC, "") if err != nil { err = fmt.Errorf("failed to bind mount ns at %s: %v", nsPath, err) } |