nickveenhof/drupal-docker-with-volume repository overview

⁠Drupal container

⁠Tutorials:

⁠https://cloud.google.com/container-engine/docs/quickstart⁠

⁠adapted from https://cloud.google.com/container-engine/docs/tutorials/persistent-disk/#wordpress_pod⁠

⁠Follow https://developers.google.com/identity/protocols/application-default-credentials⁠ to get credentials and store the json file in this folder

⁠Set environment variable to this set of creds

export GOOGLE_APPLICATION_CREDENTIALS=DrupalContainerEngine-f8ef8a6dc869.json

⁠Update gcloud

gcloud components update

⁠install kubernetes command line

gcloud components install kubectl

⁠Set to europe for all future commands

gcloud config set compute/zone europe-west1-b

⁠List properties

gcloud config list

⁠Set to our project. Make sure this exists in the UI.

gcloud config set project drupalcontainerengine

⁠initialize the cluster

gcloud container clusters create drupalpd
--machine-type "f1-micro"
--image-type "GCI"
--disk-size "100"
--scopes "https://www.googleapis.com/auth/compute","https://www.googleapis.com/auth/devstorage.read_only","https://www.googleapis.com/auth/logging.write","https://www.googleapis.com/auth/servicecontrol","https://www.googleapis.com/auth/service.management.readonly","https://www.googleapis.com/auth/trace.append⁠" --num-nodes 2
--network "default"
--enable-cloud-logging
--no-enable-cloud-monitoring
--enable-autoupgrade

⁠Log in to our kubernetes panel

gcloud container clusters get-credentials drupalpd
--zone europe-west1-b --project drupalcontainerengine

kubectl proxy

⁠Browse to http://localhost:8001/ui⁠

⁠mysql

⁠Set up a managed mysql instance and import a database into it. Next, copy the nickveenhofbe folder and modify the information in pods.yaml to match your setup.

⁠Create NFS Server PV & Claim

kubectl create -f nfs-shared1-pv.yaml

⁠Create NFS Server

kubectl create -f nfs-shared1-server.yaml

⁠Create a folder for your site

kubectl exec -it nfs-shared1-server-rxlfk mkdir /exports/nickveenhofbe

⁠Create NFS Service

kubectl create -f nfs-shared1-service.yaml

⁠Get the IP Address for our NFS Shared1 server

kubectl describe service nfs-shared1-server

⁠Replace IP address in nickveenhofbe/nfs-pv.yaml

⁠And Create NFS folder volume to mount for our site

kubectl create -f nickveenhofbe/nfs-pv.yaml

⁠Claim this NFS folder volume

kubectl create -f nickveenhofbe/nfs-pv-claim.yaml

⁠Start the pods (2 of them)

kubectl create -f nickveenhofbe/pods.yaml

⁠Update the Drupal pod

kubectl replace -f nickveenhofbe/pods.yaml

⁠Create drupal service

kubectl create -f nickveenhofbe/lb.yaml

⁠verify that it points to defined endpoints (eg, ip's)

kubectl describe service nickveenhofbe

⁠Get our properties in order to visit our site. Wait till it mentions a property like: "LoadBalancer Ingress". It might take a while before the load balancer is created.

kubectl describe service nickveenhofbe

⁠Visit the site on the Public IP that is found in the load balancer

⁠and behold the beauty of your own HA site.

⁠Caveats & TODOs

⁠It does not properly use the NFS voluem yet to share files for sites/default/files so file uploads will only be seen in 1 of the 2 pods.