This repo contains helm and YAML for deploying Portainer into a Kubernetes environment. Follow the applicable instructions for your edition / deployment methodology below:
Ensure you're using at least helm v3.2, which includes support for the --create-namespace
argument.
Install the repository:
helm repo add portainer https://portainer.github.io/k8s/
helm repo update
Install the helm chart:
helm install --create-namespace -n portainer portainer portainer/portainer
helm install --create-namespace -n portainer portainer portainer/portainer \
--set service.type=LoadBalancer
helm install --create-namespace -n portainer portainer portainer/portainer \
--set service.type=ClusterIP
For advanced helm customization, see the chart README
helm install --create-namespace -n portainer portainer portainer/portainer \
--set enterpriseEdition.enabled=true
helm install --create-namespace -n portainer portainer portainer/portainer \
--set enterpriseEdition.enabled=true \
--set service.type=LoadBalancer
helm install --create-namespace -n portainer portainer portainer/portainer \
--set enterpriseEdition.enabled=true \
--set service.type=ClusterIP
For advanced helm customization, see the chart README
If you're not using helm, you can install Portainer using manifests directly, as follows
kubectl apply -f https://raw.githubusercontent.com/portainer/k8s/master/deploy/manifests/portainer/portainer.yaml
kubectl apply -f https://raw.githubusercontent.com/portainer/k8s/master/deploy/manifests/portainer/portainer-lb.yaml
kubectl apply- f https://raw.githubusercontent.com/portainer/k8s/master/deploy/manifests/portainer/portainer-ee.yaml
kubectl apply -f https://raw.githubusercontent.com/portainer/k8s/master/deploy/manifests/portainer/portainer-lb-ee.yaml
The charts/manifests will create a persistent volume for storing Portainer data, using the default StorageClass.
In some Kubernetes clusters (microk8s), the default Storage Class simply creates hostPath volumes, which are not explicitly tied to a particular node. In a multi-node cluster, this can create an issue when the pod is terminated and rescheduled on a different node, "leaving" all the persistent data behind and starting the pod with an "empty" volume.
While this behaviour is inherently a limitation of using hostPath volumes, a suitable workaround is to use add a nodeSelector to the deployment, which effectively "pins" the portainer pod to a particular node.
The nodeSelector can be added in the following ways:
nodeSelector:
kubernetes.io/hostname: <YOUR NODE NAME>
Explicictly set the target node when deploying/updating the helm chart on the CLI, by including --set nodeSelector.kubernetes.io/hostname=<YOUR NODE NAME>
If you've deployed Portainer via manifests, without Helm, run the following one-liner to "patch" the deployment, forcing the pod to always be scheduled on the node it's currently running on:
kubectl patch deployments -n portainer portainer -p '{"spec": {"template": {"spec": {"nodeSelector": {"kubernetes.io/hostname": "'$(kubectl get pods -n portainer -o jsonpath='{ ..nodeName }')'"}}}}}' || (echo Failed to identify current node of portainer pod; exit 1)