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DCAE Platform in Dublin release supports new feature to deploy components via helm chart. This is enabled by integrating Helm Cloudify plugin into Cloudify Manager instance DCAE-Platform uses to deploy other required services. The cloudify plugin itself is under CCSDK project delivered part of Casablanca. For Dublin, this plugin has been integrated into DCAE ONAP deployment.  Any chart available under chart rep-url specified as configuration input can be deployed.

Dublin Scope

The helm plugin was intended to support deployment scenario of stand-alone application similar to capability offered under OOM.  With this plugin integration, any charts packaged under ONAP OOM can be deployed through DCAE platform in ONAP. This provides an opportunity for operators  to use a single orchestration through Cloudify for deploying both Helm and Toscal work flows if required. 

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kubectl edit svc -n kube-system tiller-deploy -o yaml
# Assign an unused nodeport available in cluster

Installation

#After update K8S svc definition should reflect the node port assigned
#verify node port assignment 

kubectl get svc --all-namespaces | grep tiller
kube-system   tiller-deploy             ClusterIP      10.43.218.97   <none>                                44134/TCP                       5d

Installation

1. Modify the blueprint templates 

   
   

   Code Block
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   kubectl exec -it -n onap <dcae-bootstrap pod> /bin

   Modify the blueprint templates 

   Code Block
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   kubectl exec -it -n onap <dcae-bootstrap pod> /bin/bash cd blueprints ls k8s-helm.yaml k8s-helm-override.yaml # Helm Blueprint templates are available under this directory # Verify and update the blueprint parameters if required # Create a corresponding input files

   Note: Explanation of parameters are documented under CCSDK wiki page : Introduction of Helm Plugin.

2. Validate and Upload the blueprint into CM

   
   

   Code Block
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   cfy blueprints validate cfy blueprints upload -b k8s-helm-test /blueprints/k8s-helm.yaml

   
   

3. Deploy the blueprint

   
   

   Code Block
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   cfy deployments create -b k8s-helm-test k8s-helm-test cfy executions start -d k8s-helm-test install

   
   

4. Validation

   
   

   Code Block
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   # Verify if new NS identified in blueprint configuration is created kubectl get ns # Verify if required component was deployed kubectl get pods -n <ns specified>

   
   

Future Enhancement

• Requires changing nodeport for tiller; since the deployment is done from bootstrap pod, clusterip/port must also be supportable 
• Existing namespace cannot be used currently
• Deployment error not being logged

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