Create VMs
For sites
Create two kubernetes clusters aka sites. Each site should have one master and at least three worker nodes with below config -
| VCPUs | 4 |
|---|---|
| Disk | 20 GB |
| RAM | 16 GB |
Configure Kubernetes Clusters
Prepare sites
| Note |
|---|
Note that we are using "coredns" feature gate instead of "kube-dns". |
Site 1 (Primary Site)
Follow steps from below link to install a kubernetes cluster using kubeadm, with four VMs created in above step -
https://wikilf-onap.onapatlassian.orgnet/wiki/display/DW/Deploying+Kubernetes+Cluster+with+kubeadm
Steps before "Configuring SDNC-ONAP" should only be followed.
Follow steps from following link to deploy SDN-C: Deploying SDN-C using helm chart
Before deploying SDN-C Cluster on secondary kubernetes cluster, configure the values.yaml file for SDN-C chart to enable GeoRedundancy.
The values.yaml file is what defines the GEO partitioning for the clusters, so myODLCluster should have the IP address of the the Primary Master node and the peerODLCluster should have the IP address of the Secondary Master node.
isPrimaryODLCluster should be true on the Primary Cluster.Green values are not in the file by default and must be added.
| Info | ||
|---|---|---|
| ||
config:geoEnabled enableClustering: true geoEnabled: enableClustering: truetrue |
Enable geo for primary site for MySQL chart as below:
Enable geo for primary site (site 1) | vi kubernetes/common/mysql/values.yaml Change the following fields with the new value:
|
Site 2 (Secondary/Backup Site)
Follow steps from below link to install another kubernetes cluster with SDN-C using kubeadm, with four VMs created in above step -
https://wikilf-onap.onapatlassian.orgnet/wiki/display/DW/Deploying+Kubernetes+Cluster+with+kubeadm
Steps before "Configuring SDNC-ONAP" should only be followed.
Follow steps from following link to deploy SDN-C: Deploying SDN-C using helm chart
Before deploying SDN-C Cluster on secondary kubernetes cluster, configure the values.yaml file for SDN-C chart to enable GeoRedundancy.
The values.yaml file is what defines the GEO partitioning for the clusters, so myODLCluster should have the IP address of the the Secondary Master node and the peerODLCluster should have the IP address of the Primary Master node.
isPrimaryODLCluster should be false on the Secondary Cluster.Green values are not in the file by default and must be added.
| Info | ||
|---|---|---|
| ||
config:geoEnabled enableClustering: true geoEnabled: enableClustering: truetrue |
b) configure the geographic site id for secondary site for MySQL chart as below:
Configure geographic site id for secondary site (site 2) | vi kubernetes/common/mysql/values.yaml Change the following fields with the new value:
|