The new Beijing release scalability, resiliency, and manageablity are described here.   These capabilities apply to the OOM/Kubernetes installation.

Installation

Follow the OOM installation instructions at 

http://onap.readthedocs.io/en/latest/submodules/oom.git/docs/index.html

TLab specific Upgrade of Portal

Below are the notes specific for the TLab environment. If a change is made in OOM charts then the following needs to be completed to upgrade the running charts in

    1. Find Rancher IP in R_Control-Plane tenant - we use “onap_dev” key and “Ubuntu” user to SSH. For example: “ssh -i onap_dev ubuntu@192.168.xx.xxx”.
    2. Login as ubuntu, then run "sudo -i" to login as root. The “oom” git repo is in the rancher vm's root directory, under “/root/oom”.
    3. Edit portal files at /root/oom/kubernetes/portal....

    4. When complete run the following from /root/oom/kubernetes  dir

      > make portal
....
> make onap
....
# This will do the upgrade:
helm upgrade dev local/onap --namespace onap -f onap/resources/environments/disable-allcharts.yaml --set portal.enabled=true
# When complete run the following to ensure its in the process of coming up or complete. 
kubectl get pods -n onap -o wide | grep portal

      In case, if it is a fresh install, try below command:

      helm install ./onap/ -n onap --namespace onap -f onap/resources/environments/disable-allcharts.yaml --set portal.enabled=true

      Stop command to stop any old namespace:

      helm del onap --purge
    5. Rancher gui is at 192.168.xx.xxx:8080
      There is an interactive cli as well in the rancher gui where you can run kubectl commands.

    6. Below command will show the list of portal services.

      kubectl get services --namespace=onap | grep portal

Accessing the ONAP Portal using OOM and a Kubernetes Cluster

If everything is successful, then to access Portal - http://onap.readthedocs.io/en/latest/submodules/oom.git/docs/oom_user_guide.html#accessing-the-onap-portal-using-oom-and-a-kubernetes-cluster 

Overview of the running system

> kubectl get services --namespace=onap | grep portal
portal-app               LoadBalancer   10.43.141.57    10.0.0.8      8989:30215/TCP,8006:30213/TCP,8010:30214/TCP   5d
portal-cassandra         ClusterIP      10.43.158.145   <none>        9160/TCP,7000/TCP,7001/TCP,7199/TCP,9042/TCP   5d
portal-db                ClusterIP      10.43.192.65    <none>        3306/TCP                                       5d
portal-sdk               ClusterIP      10.43.24.82     <none>        8990/TCP                                       5d
portal-widget            ClusterIP      10.43.101.233   <none>        8082/TCP                                       5d
portal-zookeeper         ClusterIP      10.43.0.82      <none>        2181/TCP                                       5d
> kubectl get pods --all-namespaces | grep portal
onap          dev-portal-app-b8c6668d8-56bjb                2/2       Running       0          2m
onap          dev-portal-app-b8c6668d8-g6whb                2/2       Running       0          2m
onap          dev-portal-app-b8c6668d8-xshwg                2/2       Running       0          2m
onap          dev-portal-cassandra-5ddbc59ffd-qc6rp         1/1       Running       0          2m
onap          dev-portal-db-6d7fc58648-sp9sf                0/1       Running       0          2m
onap          dev-portal-sdk-868f696cd7-mnjxk               0/2       Init:0/1      0          2m
onap          dev-portal-widget-694c45b75f-nqdtt            0/1       Init:0/1      0          2m
onap          dev-portal-zookeeper-db466fc-kggsw            1/1       Running       0          2m


Healthchecks

Verify that the portal healtcheck passes by the robot framework:

https://jenkins.onap.org/view/External%20Labs/job/lab-tlab-beijing-oom-deploy/325/robot/OpenECOMP%20ETE/Robot/Testsuites/Health-Check/

portal-app Scaling

To scale a new portal-app, set the replica count appropriately.   

In our tests below, we are going to work with the OOM portal component in isolation.   In this exercise, we scale the portal-app with 2 new replicas.

The below code needs to be added to the integration-override.yaml file.

portal:
  portal-app:
    replicaCount: 3

Run below command from "/root” folder to do helm upgrade

helm upgrade -i dev local/onap -f integration-override.yaml


portal-app Resiliency

A portal-app container failure can be simulated by stopping the portal-app container.    The kubernetes liveness operation will detect that the ports are down, inferring there's a problem with the service, and in turn, will restart the container. 

Here is where one of the running instances was deleted. And another is starting.

After Deleteing 1 portal App.

Here the new instance has started and the old one is still terminating

After the deleted instance has terminated the 3 instances are all running normally.

During this time there was no issues with the Portal Website.

TODO: In the following releases, the portal-db, portal-widget needs to be tested with similar resiliency and scaling tests. The portal-cassandra and portal-zookeeper requires coordination with MUSIC team to test the resiliency as there are some plans to provide MUSIC as a service. 

Sanity Tests 

Check Portal UI and perform sanity tests.

  1. After 3 instances of Portal are up, edit IP in /etc/hosts file, and logon as demo user on http://portal.api.simpledemo.onap.org:30215/ONAPPORTAL/login.htm
  2. Then killed 1 instance, I am able to continue on Portal page seamlessly
  3. Another test on failover timing, when killed all 3 instances, the new Portal processes are coming up within 30 seconds

Troubleshoot

In case of failures, below commands may get handy for accessing the pods/logs and troubleshooting the issue.

To find all portal pods:

> kubectl get pods --all-namespaces | grep portal
onap          dev-portal-app-b8c6668d8-56bjb                2/2       Running       0          2m
onap          dev-portal-app-b8c6668d8-g6whb                2/2       Running       0          2m
onap          dev-portal-app-b8c6668d8-xshwg                2/2       Running       0          2m
onap          dev-portal-cassandra-5ddbc59ffd-qc6rp         1/1       Running       0          2m
onap          dev-portal-db-6d7fc58648-sp9sf                0/1       Running       0          2m
onap          dev-portal-sdk-868f696cd7-mnjxk               0/2       Init:0/1      0          2m
onap          dev-portal-widget-694c45b75f-nqdtt            0/1       Init:0/1      0          2m
onap          dev-portal-zookeeper-db466fc-kggsw            1/1       Running       0          2m

From above list, now to check DB logs:

> kubectl logs --namespace=onap dev-portal-db-6d7fc58648-sp9sf -c portal-db
2018-05-30 19:49:16 139875765802880 [Note] mysqld (mysqld 10.2.15-MariaDB-10.2.15+maria~jessie) starting as process 1 ...
2018-05-30 19:49:16 139875765802880 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2018-05-30 19:49:16 139875765802880 [Note] InnoDB: Uses event mutexes
2018-05-30 19:49:16 139875765802880 [Note] InnoDB: Compressed tables use zlib 1.2.8
2018-05-30 19:49:16 139875765802880 [Note] InnoDB: Using Linux native AIO
2018-05-30 19:49:16 139875765802880 [Note] InnoDB: Number of pools: 1
2018-05-30 19:49:16 139875765802880 [Note] InnoDB: Using SSE2 crc32 instructions

To check portal-app logs:

> kubectl logs --namespace=onap dev-portal-app-b8c6668d8-56bjb -c portal-app
/start-apache-tomcat.sh: option -i value is
/start-apache-tomcat.sh: option -n value is
/start-apache-tomcat.sh: values for IP (-i) and/or name (-n) are empty or short
/start-apache-tomcat.sh: Starting server from /opt/apache-tomcat-8.0.37
30-May-2018 19:48:29.480 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server version: Apache Tomcat/8.0.37
30-May-2018 19:48:29.482 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server built: Sep 1 2016 10:01:52 UTC
30-May-2018 19:48:29.482 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server number: 8.0.37.0

To get inside the portal-app docker and access the application logs:

> kubectl exec -it dev-portal-app-b8c6668d8-56bjb -n onap /bin/sh
Defaulting container name to portal-app.
Use 'kubectl describe pod/dev-portal-app-b8c6668d8-56bjb' to see all of the containers in this pod.
/ # cd /opt/apache-tomcat-8.0.37/logs/onapportal
/opt/apache-tomcat-8.0.37/logs/onapportal # ls
application.log  debug.log        metrics.log
audit.log        error.log

Portal’s Rocket Chat channel - http://onap-integration.eastus.cloudapp.azure.com:3000/channel/portal


References:

  1. K8S / helm basic commands for ONAP integration