Bug 1848379

Summary: Recreating recently deleted NodePort service results in 'port is already allocated' error
Product: OpenShift Container Platform Reporter: Stefan Schimanski <sttts>
Component: kube-apiserverAssignee: Stefan Schimanski <sttts>
Status: CLOSED ERRATA QA Contact: Ke Wang <kewang>
Severity: medium Docs Contact:
Priority: low    
Version: 4.6CC: aos-bugs, mfojtik, mrobson, sttts, xxia
Target Milestone: ---Keywords: Reopened
Target Release: 4.6.0   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: 1753649 Environment:
Last Closed: 2020-10-27 16:08:03 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 1753649, 1849321, 1849324    

Comment 3 Ke Wang 2020-07-01 03:58:31 UTC 
Verified with OCP 4.6.0-0.nightly-2020-06-30-020342, verification steps see below,

$ cat 1848379-nodeport.yaml
apiVersion: v1
kind: Service
metadata:
  labels:
    app: nodeport-admin
  name: nodeport-test
spec:
  type: NodePort
  externalTrafficPolicy: Cluster
  ports:
  - name: 8080-tcp
    port: 8080
    protocol: TCP
    nodePort: 30006
  selector:
    deploymentconfig: nodeport-app

$ cat 1848379-test.sh
#!/usr/bin/env bash
date
oc delete svc nodeport-test
#while [ -n "$(oc create -f nodeport.yml 2>&1 > /dev/null)" ]; do
while ! oc create -f 1848379-nodeport.yaml; do
  date
done

$ oc apply -f 1848379-nodeport.yaml

Run 100 times,
$ for i in {1..100}; do echo "test $i ..." >> test.log;./1848379-test.sh >> test.log;done

$ grep -i invalid test.log
Nothing found.

We got the expected results, move the bug verified.
Comment 5 errata-xmlrpc 2020-10-27 16:08:03 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (OpenShift Container Platform 4.6 GA Images), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2020:4196