Uninstalling Connectware Agents with the connectware-agent Helm Chart
Prerequisites
Helm V3 installed (Helm | Installing Helm).
kubectl
installed (Install Tools).kubectl
configured with the current context pointing to your target cluster (Configure Access to Multiple Clusters).
Uninstalling All Agents from One Installation
To remove all agents installed with the connectware-agent
Helm chart, run the helm uninstall
command followed by the name of your installation (also known as the release). You assigned this name yourself when deploying with the connectware-agent
chart.
In the examples provided in this documentation, the release is called connectware-agent
. If you’re unsure of the name you chose, you can look it up by running helm list
for the namespace where you installed your agents.
Example
helm list -n <namespace>
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
connectware-agent <namespace> 1 2023-03-29 14:49:49.29654165 +0200 CEST deployed connectware-agent-1.0.0 1.1.5
Once you determined the name of your installation, you can uninstall it.
Example
helm uninstall -n <namespace> connectware-agent
This terminates running pods and removes their Kubernetes objects, however PersistentVolumeClaims
, and with them the Persistent Volumes are retained. If you wish to clean them up, you can do so by using the label app.kubernetes.io/instance
in combination with kubectl delete
. The value for this label is again the release name you already used to uninstall.
Example
kubectl delete -n <namespace> pvc -l app.kubernetes.io/instance=connectware-agent
Uninstalling Single Agents from a Larger Installation
If you want to remove one or more agents from a larger group of agents installed using the connectware-agent
Helm chart, you can remove their whole configuration from your values.yaml file and running a Helm upgrade as described in Configuring agents with the connectware-agent Helm chart.
Example
protocolMapperAgentDefaults:
connectwareHost: connectware.cybus # adjust to actual hostname of Connectware
protocolMapperAgents:
- name: bender-robots
resources:
limits:
cpu: 2000m
memory: 4000Mi
- name: welder-robots # remove all configuration for this agent
resources: #
limits: #
cpu: 500m #
memory: 1000Mi #
- name: painter-robots
resources:
limits:
cpu: 1000m
memory: 2000Mi
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