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There is no need to build the image for the helm manager unless changes are made to the Dockerfile in the current dir.

If no changes are needed, skip this section.

Instruction to build the image:

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Code Block

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$ docker images | grep helm
o-ran-sc/nonrtric-helm-manager  1.0.0-SNAPSHOT  56e50ade8c37  3 minutes ago                1.0.0-SNAPSHOT  498MB

Note: Note, replace the image name in the docker-hm.sh and kube-hm.sh if this image shall be used.

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Create helm chart for test

Create a helm for this test. Package the chart into an archive

Code Block

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$ helm create simple-app
Successfully packaged chart and saved it to: /nonrtric/helm-manager/simple-app-0.1.0.tgz

$ helm package simple-app

Run in docker with local kubernetes

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Create a private docker network, unless it already exists, for the containers to run in.

Code Block

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$ docker network create nonrtric-docker-net

Start the chartmuseum container in a separate window. This will be used as a chart repository. Make note of the port, 8222, which will be available on local host. Charts uploaded to the chartmuseum container will be availed in the mounted dir 'charts' on your host.ls

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$ ./docker-cm.sh

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title	docker-cm.sh
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docker run \
	--rm \
	-it \
    -p 8222:8080 \
    --name chartmuseum \
    --network nonrtric-docker-net \
    -e DEBUG=1 \
    -e STORAGE=local \
    -e STORAGE_LOCAL_ROOTDIR=/charts \
    -v $(pwd)/charts:/charts \
    ghcr.io/helm/chartmuseum:v0.13.1

Add the chart, created in the section 'Create helm for test', to the repo

Code Block

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$ curl --data-binary "@simple-app-0.1.0.tgz" -X POST http://localhost:8222/api/charts
{"saved":true}

Start the helm manager in a separate window. Make note of the port, 8112, which will be available on local host. This is the port to the Helm manager REST API.

Code Block

language	bash
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$ ./docker-cm.sh

Code Block

language	bash
title	docker-hm.sh
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docker run \
    --rm  \
    -it \
    -p 8112:8083  \
    --name helmmanagerservice \
    --network nonrtric-docker-net \
    -v $(pwd)/mnt/database:/var/helm-manager/database \
    -v ~/.kube:/root/.kube \
    -v ~/.helm:/root/.helm \
    -v ~/.config/helm:/root/.config/helm \
    -v ~/.cache/helm:/root/.cache/helm \
    -v $(pwd)/config/KubernetesParticipantConfig.json:/opt/app/helm-manager/src/main/resources/config/KubernetesParticipantConfig.json \
    -v $(pwd)/config/application.yaml:/opt/app/helm-manager/src/main/resources/config/application.yaml \
    o-ran-sc/nonrtric-helm-manager:1.0.0-SNAPSHOT

The chartmusem repo need to added to helm. This operation must be called with an url accessable accessible from the helm manager container.

Go into the helm manager container and add the reprepo.

Code Block

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$ docker exec -it helmmanagerservice sh
$# helm repo add cm http://chartmuseum:8080
"cm" has been added to your repositories
$ exit

The helm manager is now running and configured with a chart repo.

Run the script test.sh to execute a the sequence for installing the application 'simpleapp' namespace 'ckhm':

Namespace 'ckhm' is created in kubernetes if not existing
Onboard chart
Install chart
Uninstall chart
Remove (the onboarded) chart

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Code Block

language	bash

$ ./test.sh docker

Code Block

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Start test
================
Get apps - empty
================
curl -sw %{http_code} http://localhost:8112/helm/charts
 Curl OK
  Response: 200
  Body: {"charts":[]}

============
Onboard app
===========
curl -sw %{http_code} http://localhost:8112/helm/charts -X POST -F chart=@simple-app-0.1.0.tgz -F values=@simple-app-values.yaml -F info=<simple-app.json
 Curl OK
  Response: 200
  Body: 

=====================
Get apps - simple-app
=====================
curl -sw %{http_code} http://localhost:8112/helm/charts
 Curl OK
  Response: 200
  Body: {"charts":[{"releaseName":"simpleapp","chartName":"simple-app","version":"0.1.0","namespace":"ckhm","repository":"cm"}]}

===========
Install app
===========
curl -sw %{http_code} http://localhost:8112/helm/install -X POST -H Content-Type:application/json -d @simple-app-installation.json
 Curl OK
  Response: 201
  Body: 

=====================
Get apps - simple-app
=====================
curl -sw %{http_code} http://localhost:8112/helm/charts
 Curl OK
  Response: 200
  Body: {"charts":[{"releaseName":"simpleapp","chartName":"simple-app","version":"0.1.0","namespace":"ckhm","repository":"cm"}]}

=============================
helm ls to list installed app
=============================
NAME     	NAMESPACE	REVISION	UPDATED                                	STATUS  	CHART           	APP VERSION
hm-app   	hm-app-ns	1       	2021-05-19 17:15:26.068017436 +0000 UTC	deployed	hm-app-0.1.0    	1.16.0     
kall1    	default  	2       	2021-05-16 21:32:46.710349 +0200 CEST  	deployed	app1-0.1.0      	1.16.0     
kall11   	default  	1       	2021-05-16 21:40:57.073819 +0200 CEST  	deployed	app1-0.1.0      	1.16.0     
kalle3   	app3-ns  	1       	2021-05-17 01:22:29.514917 +0200 CEST  	deployed	app3-0.1.0      	1.16.0     
kalle3   	default  	1       	2021-05-17 01:17:03.671637 +0200 CEST  	deployed	app3-0.1.0      	1.16.0     
simpleapp	ckhm     	1       	2021-06-01 16:31:30.255849815 +0000 UTC	deployed	simple-app-0.1.0	1.16.0     

==========================================
sleep 30 - give the app some time to start
==========================================
============================
List svc and  pod of the app
============================
NAME                   TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)   AGE
simpleapp-simple-app   ClusterIP   10.102.209.44   <none>        80/TCP    31s
NAME                                    READY   STATUS    RESTARTS   AGE
simpleapp-simple-app-858c798f97-vm6hd   1/1     Running   0          31s

========================
Uninstall app simple-app
========================
curl -sw %{http_code} http://localhost:8112/helm/uninstall/simple-app/0.1.0 -X DELETE
 Curl OK
  Response: 204
  Body: 

sleep 10 - give the app some time to remove
=============================================
List svc and  pod of the app - should be gone
=============================================
No resources found in ckhm namespace.
No resources found in ckhm namespace.

=====================
Get apps - simple-app
=====================
curl -sw %{http_code} http://localhost:8112/helm/charts
 Curl OK
  Response: 200
  Body: {"charts":[{"releaseName":"simpleapp","chartName":"simple-app","version":"0.1.0","namespace":"ckhm","repository":"cm"}]}

============
Delete chart
===========
curl -sw %{http_code} http://localhost:8112/helm/charts/simple-app/0.1.0 -X DELETE
 Curl OK
  Response: 204
  Body: 

================
Get apps - empty
================
curl -sw %{http_code} http://localhost:8112/helm/charts
 Curl OK
  Response: 200
  Body: {"charts":[]}

Test result  All tests ok 
End of test

Run in kubernetes

This instruction is valid for running both in a local kubernetes and in a kubernetes ccluster

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Create helm chart for test

Run in docker with local kubernetes

Run in kubernetes