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-rw-r--r--libpod/networking_linux.go28
1 files changed, 20 insertions, 8 deletions
diff --git a/libpod/networking_linux.go b/libpod/networking_linux.go
index e792a410c..bf527a81a 100644
--- a/libpod/networking_linux.go
+++ b/libpod/networking_linux.go
@@ -314,8 +314,25 @@ func (r *RootlessCNI) Cleanup(runtime *Runtime) error {
r.Lock.Lock()
defer r.Lock.Unlock()
running := func(c *Container) bool {
+ // no bridge => no need to check
+ if !c.config.NetMode.IsBridge() {
+ return false
+ }
+
// we cannot use c.state() because it will try to lock the container
- // using c.state.State directly should be good enough for this use case
+ // locking is a problem because cleanup is called after net teardown
+ // at this stage the container is already locked.
+ // also do not try to lock only containers which are not currently in net
+ // teardown because this will result in an ABBA deadlock between the rootless
+ // cni lock and the container lock
+ // because we need to get the state we have to sync otherwise this will not
+ // work because the state is empty by default
+ // I do not like this but I do not see a better way at moment
+ err := c.syncContainer()
+ if err != nil {
+ return false
+ }
+
state := c.state.State
return state == define.ContainerStateRunning
}
@@ -323,13 +340,8 @@ func (r *RootlessCNI) Cleanup(runtime *Runtime) error {
if err != nil {
return err
}
- cleanup := true
- for _, ctr := range ctrs {
- if ctr.config.NetMode.IsBridge() {
- cleanup = false
- }
- }
- if cleanup {
+ // cleanup if we found no containers
+ if len(ctrs) == 0 {
// make sure the the cni results (cache) dir is empty
// libpod instances with another root dir are not covered by the check above
// this allows several libpod instances to use the same rootless cni ns