Bug 1874457

Summary: [Kuryr] Missing router during FIP less and BYO installation
Product: OpenShift Container Platform Reporter: Maysa Macedo <mdemaced>
Component: NetworkingAssignee: Maysa Macedo <mdemaced>
Networking sub component: kuryr QA Contact: GenadiC <gcheresh>
Status: CLOSED ERRATA Docs Contact:
Severity: high    
Priority: high CC: ltomasbo, rlobillo
Version: 4.6.z   
Target Milestone: ---   
Target Release: 4.6.0   
Hardware: Unspecified   
OS: Unspecified   
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Last Closed: 2020-10-27 16:36:42 UTC Type: Bug
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Maysa Macedo 2020-09-01 12:10:03 UTC 
Description of problem:

Kuryr requires a router to be present on the cluster
to allow communication between VMs, Pods and Services.
However, during a FIP less no router is created by the
installer which breaks Kuryr installation.

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1.
2.
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Actual results:


Expected results:


Additional info:
Comment 1 Maysa Macedo 2020-09-03 11:21:01 UTC 
Additionally, As no external connectivity is provided Kuryr shouldn't attempt to create a Floating IP for a Service of Load Balancer type.
Comment 4 rlobillo 2020-09-23 14:36:40 UTC 
Verified on 4.6.0-0.nightly-2020-09-23-022756 over RHOS-16.1-RHEL-8-20200903.n.0

Installation from installer VM on machinesSubnet was successful. A router connecting the machineSubnet to the external network was created previously.

$ cat 4.6.0-0.nightly-2020-09-23-022756/install-config.yaml 
# This file is autogenerated by infrared openshift plugin
apiVersion: v1
baseDomain: "shiftstack.com"
clusterID:  "e43d604c-afe9-5091-9a9f-31aa2b5b912b"
compute:
- name: worker
  platform: {}
  replicas: 3
controlPlane:
  name: master
  platform: {}
  replicas: 3
metadata:
  name: "ostest"
networking:
  clusterNetworks:
  - cidr:             10.128.0.0/14
    hostSubnetLength: 9
  serviceCIDR: 172.30.0.0/16
  machineCIDR: 10.196.0.0/16
  type: "Kuryr"
platform:
  openstack:
    cloud:            "shiftstack"
    externalNetwork:  "nova"
    region:           "regionOne"
    computeFlavor:    "m4.xlarge"
    machinesSubnet: b190b638-4c72-48ad-bcab-40342f470231
pullSecret: [...]


$ ./4.6.0-0.nightly-2020-09-23-022756/openshift-install create cluster --dir ostest --log-level debug
[...]
INFO Install complete!                            
INFO To access the cluster as the system:admin user when using 'oc', run 'export KUBECONFIG=/home/cloud-user/ostest/auth/kubeconfig' 
INFO Access the OpenShift web-console here: https://console-openshift-console.apps.ostest.shiftstack.com 
INFO Login to the console with user: "kubeadmin", and password: "FS2yq-rJiki-aHgg4-auITF" 
DEBUG Time elapsed per stage:                      
DEBUG     Infrastructure: 1m26s                    
DEBUG Bootstrap Complete: 21m35s                   
DEBUG                API: 3m44s                    
DEBUG  Bootstrap Destroy: 42s                      
DEBUG  Cluster Operators: 24m57s                   
INFO Time elapsed: 49m26s                         


$ ./oc get all
NAME              READY   STATUS    RESTARTS   AGE
pod/demo          1/1     Running   0          38s
pod/demo-caller   1/1     Running   0          25s

NAME           TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)   AGE
service/demo   ClusterIP   172.30.217.22   <none>        80/TCP    7s
$ ./oc rsh pod/demo-caller curl 172.30.217.22
demo: HELLO! I AM ALIVE!!!

Cluster destroy worked fine:

[cloud-user@installer ~]$ ./4.6.0-0.nightly-2020-09-23-022756/openshift-install destroy cluster --dir ostest --log-level debug
[...]
DEBUG Removing tag ostest-zdhlc-primaryClusterNetwork from openstack networks 
DEBUG Exiting untagging openstack networks         
DEBUG Purging asset "Metadata" from disk           
DEBUG Purging asset "Terraform Variables" from disk 
DEBUG Purging asset "Kubeconfig Admin Client" from disk 
DEBUG Purging asset "Kubeadmin Password" from disk 
DEBUG Purging asset "Certificate (journal-gatewayd)" from disk 
DEBUG Purging asset "Cluster" from disk            
INFO Time elapsed: 18m58s
Comment 8 errata-xmlrpc 2020-10-27 16:36:42 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