Gate ovn-controller starting until ovnkube controller syncs

This commit fixes OCPBUGS-42303.
If ovn-controller starts before ovnkube-controller syncs and the changes
propagated to SB DB, then ovn-controller will consume stale SB DB data.
This PR gates starting ovn-controller until ovnkube controller syncs.
ovnkube-controller emits a file to non-persistent storage and we
predicate the start on this.

Signed-off-by: Martin Kennelly <[email protected]>

Author: martinkennelly

bindata/network/ovn-kubernetes/common/008-script-lib.yaml

@@ -59,6 +59,17 @@ data:
         exit 1
       fi
 
+      echo "$(date -Iseconds) - waiting for 10 minutes for ovnkube-controller to sync and SB DB hot..."
+      local retries=0
+      # ten minutes timeout
+      while [[ 3000 -gt "${retries}" ]]; do
+        (( retries += 1 ))
+        if [[ -f /run/ovn-kubernetes/ovnkube-controller-sb-db-hot ]]; then
+          break
+        fi
+        sleep .2
+      done
+
       echo "$(date -Iseconds) - starting ovn-controller"
       exec ovn-controller \
         unix:${vswitch_dbsock} \

bindata/network/ovn-kubernetes/managed/ovnkube-node.yaml

@@ -134,6 +134,9 @@ spec:
           name: node-log
         - mountPath: /dev/log
           name: log-socket
+        - mountPath: /run/ovn-kubernetes
+          name: host-run-ovn-kubernetes
+          readOnly: True
         terminationMessagePolicy: FallbackToLogsOnError
         resources:
           requests:

bindata/network/ovn-kubernetes/self-hosted/ovnkube-node.yaml

@@ -169,6 +169,9 @@ spec:
           name: node-log
         - mountPath: /dev/log
           name: log-socket
+        - mountPath: /run/ovn-kubernetes
+          name: host-run-ovn-kubernetes
+          readOnly: True
         terminationMessagePolicy: FallbackToLogsOnError
         resources:
           requests: