ce696bad8b
- added memcached container (currently develop branch needed) - put all zammad services in one kubernetes pod to be able to use empty dir volume for tmp - switched to kubernetes deployments - switched to ReadWriteOnce kubernetes volume claims - added init container to elasticsearch & zammad kubernetes deployments - added IMAGE_REPO var for docker compose to .env file - run nginx from zammad container (preparation for stateless updates) - removed docker-compose-build.yml - use private docker repos in compose & kubernetes - change compose volume names
51 lines
1.7 KiB
Markdown
51 lines
1.7 KiB
Markdown
# Zammad kubernetes example deployment
|
|
|
|
This is a proof of concept of a Kubernetes deployment, which should be considered
|
|
beta and not ready for production.
|
|
|
|
## Prerequisites
|
|
|
|
- Change the ingress to your needs
|
|
|
|
|
|
## Deploy Zammad
|
|
|
|
### Install on Minikube
|
|
|
|
* Install kubectl
|
|
* https://kubernetes.io/docs/tasks/tools/install-kubectl/
|
|
* Install Minkube
|
|
* https://github.com/kubernetes/minikube
|
|
* minikube start --memory=4096 --cpus=2
|
|
* minikube addons enable ingress
|
|
* echo "$(minikube ip) zammad.example.com" | sudo tee -a /etc/hosts
|
|
* kubectl apply -f .
|
|
* minikube dashboard
|
|
* switch to namespace "zammad"
|
|
* open "Overview" and wait until all pods are green
|
|
* access zammad on:
|
|
* http://zammad.example.com
|
|
|
|
|
|
### Install on Google Kubernetes Engine
|
|
* connect to cluster via gcloud command
|
|
* kubectl apply -f .
|
|
|
|
|
|
|
|
## If you want to help to improve the Kuberntes deployments here are some todos:
|
|
* fix the nfs mount from entrypoint, which is currently used because of:
|
|
* https://github.com/kubernetes/kubernetes/issues/8735
|
|
* otherwise you have to manually:
|
|
* kubectl apply -f 00_namespace.yaml -f 80_svc.yaml
|
|
* kubectl --namespace=zammad describe services zammad-nfs
|
|
* use the NFS server IP to update
|
|
* 40_deployment_zammad.yaml
|
|
* 41_deployment_nginx.yaml
|
|
* kubectl apply -f 10_pvc.yaml -f 40_deployment_zammad.yaml -f 41_deployment_nginx.yaml -f 42_deployment_memcached.yaml -f 43_deployment_postgesql.yaml -f 44_deployment_elasticsearch.yaml -f 45_deployment_nfs.yaml -f 90_ingress.yaml
|
|
* create config map for nginx
|
|
* create a zammad helm chart
|
|
* document steps to use existing helm charts for elasticsearch, postgresql and so on
|
|
* add cpu & mem limits
|
|
* add rolling upgrade strategy to deployments
|