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authorPaul Holzinger <pholzing@redhat.com>2021-09-17 15:39:16 +0200
committerPaul Holzinger <pholzing@redhat.com>2021-09-22 11:51:40 +0200
commitaf49810a6e08ed084294ce03e1c8a5efb8d1a705 (patch)
tree719dbe463ccfbfc54914869576b2f1bbcf4c6680 /vendor/github.com/vishvananda/netns
parent8e2d25e93706190acf25bcf74bd18cdf98fb3a12 (diff)
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Bump CNI to v1.0.1
Update CNI so we can match wrapped errors. This should silence ENOENT warnings when trying to read the cni conflist files. Fixes #10926 Because CNI v1.0.0 contains breaking changes we have to change some import paths. Also we cannot update the CNI version used for the conflist files created by `podman network create` because this would require at least containernetwork-plugins v1.0.1 and a updated dnsname plugin. Because this will take a while until it lands in most distros we should not use this version. So keep using v0.4.0 for now. The update from checkpoint-restore/checkpointctl is also required to make sure it no longer uses CNI to read the network status. [NO TESTS NEEDED] Signed-off-by: Paul Holzinger <pholzing@redhat.com>
Diffstat (limited to 'vendor/github.com/vishvananda/netns')
-rw-r--r--vendor/github.com/vishvananda/netns/README.md11
-rw-r--r--vendor/github.com/vishvananda/netns/netns_linux.go18
2 files changed, 23 insertions, 6 deletions
diff --git a/vendor/github.com/vishvananda/netns/README.md b/vendor/github.com/vishvananda/netns/README.md
index 6b45cfb89..1fdb2d3e4 100644
--- a/vendor/github.com/vishvananda/netns/README.md
+++ b/vendor/github.com/vishvananda/netns/README.md
@@ -48,3 +48,14 @@ func main() {
}
```
+
+## NOTE
+
+The library can be safely used only with Go >= 1.10 due to [golang/go#20676](https://github.com/golang/go/issues/20676).
+
+After locking a goroutine to its current OS thread with `runtime.LockOSThread()`
+and changing its network namespace, any new subsequent goroutine won't be
+scheduled on that thread while it's locked. Therefore, the new goroutine
+will run in a different namespace leading to unexpected results.
+
+See [here](https://www.weave.works/blog/linux-namespaces-golang-followup) for more details.
diff --git a/vendor/github.com/vishvananda/netns/netns_linux.go b/vendor/github.com/vishvananda/netns/netns_linux.go
index c76acd087..36e64906b 100644
--- a/vendor/github.com/vishvananda/netns/netns_linux.go
+++ b/vendor/github.com/vishvananda/netns/netns_linux.go
@@ -1,4 +1,4 @@
-// +build linux
+// +build linux,go1.10
package netns
@@ -218,12 +218,18 @@ func getPidForContainer(id string) (int, error) {
filepath.Join(cgroupRoot, "system.slice", "docker-"+id+".scope", "tasks"),
// Even more recent docker versions under cgroup/systemd/docker/<id>/
filepath.Join(cgroupRoot, "..", "systemd", "docker", id, "tasks"),
- // Kubernetes with docker and CNI is even more different
+ // Kubernetes with docker and CNI is even more different. Works for BestEffort and Burstable QoS
filepath.Join(cgroupRoot, "..", "systemd", "kubepods", "*", "pod*", id, "tasks"),
- // Another flavor of containers location in recent kubernetes 1.11+
- filepath.Join(cgroupRoot, cgroupThis, "kubepods.slice", "kubepods-besteffort.slice", "*", "docker-"+id+".scope", "tasks"),
- // When runs inside of a container with recent kubernetes 1.11+
- filepath.Join(cgroupRoot, "kubepods.slice", "kubepods-besteffort.slice", "*", "docker-"+id+".scope", "tasks"),
+ // Same as above but for Guaranteed QoS
+ filepath.Join(cgroupRoot, "..", "systemd", "kubepods", "pod*", id, "tasks"),
+ // Another flavor of containers location in recent kubernetes 1.11+. Works for BestEffort and Burstable QoS
+ filepath.Join(cgroupRoot, cgroupThis, "kubepods.slice", "*.slice", "*", "docker-"+id+".scope", "tasks"),
+ // Same as above but for Guaranteed QoS
+ filepath.Join(cgroupRoot, cgroupThis, "kubepods.slice", "*", "docker-"+id+".scope", "tasks"),
+ // When runs inside of a container with recent kubernetes 1.11+. Works for BestEffort and Burstable QoS
+ filepath.Join(cgroupRoot, "kubepods.slice", "*.slice", "*", "docker-"+id+".scope", "tasks"),
+ // Same as above but for Guaranteed QoS
+ filepath.Join(cgroupRoot, "kubepods.slice", "*", "docker-"+id+".scope", "tasks"),
}
var filename string