jmccann / drone-in-minikube

Run Drone inside minikube

Running Drone in Kuberenetes with Gitea

This is an effort to make it simpler to run Drone in Kuberenetes locally for developing patterns/solutions/drivers for Drone and kuberenetes.

Install minikube

Tool to easily install/setup/manage kubernetes inside virtualbox

https://github.com/kubernetes/minikube

Install kubectl

CLI tool for kubernetes

https://kubernetes.io/docs/user-guide/prereqs/

Create local kubernetes environment

minikube start --cpus 6 --memory 5000
# wait a few minutes

# Setup docker env to use docker in minikube vbox instance
eval #(minikube docker-env)

# See stuff running
kubectl get all
docker ps

Install/Configure gitea

kubectl apply -f gitea-deployment.yaml
kubectl apply -f gitea-service.yaml

# Wait a few minutes for gitea to download and start
kubectl get all
kubectl describe pod gitea

# Get URL to access gitea when everything is up
minikube service gitea --url

We will also need to set a host entry for gitea locally.

echo "$(minikube ip) gitea" >> /etc/hosts

Now login to your gitea instance (from minikube service gitea --url above) to finish setting it up. Create yourself an admin account as well.

• Database Type: sqlite3
• Application URL should match output of minikube service gitea --url

Install Drone

kubectl apply -f drone-secrets.yaml
kubectl apply -f drone-configmap.yaml
kubectl apply -f drone-server-deployment.yaml
kubectl apply -f drone-server-service.yaml
kubectl apply -f drone-agent-deployment.yaml

Create a repo

1. Login to gitea - minikube service gitea --url
2. Create a repo
3. Login to Drone - minikube service drone-server --url
4. Activate your repo in Drone
5. FIX YOUR WEBHOOK

• Go to webhook in gitea for repo you activated
• Change to http://drone-server:8000/hook?access_token=xxxxx

6. Clone the gitea repo and have fun!

drone-in-minikube's Issues

drone spun dind containers do not have kube dns access

This makes it impossible to use any plugin for pushing to cluster registry and deploying to the cluster. Even tho it is docker dind (docker in docker) networking related, it is good to note here. It has to do with the fact that drone spins up the dind containers with a custom network, shielding access to the cluster dns server.

More info here:

https://discourse.drone.io/t/dind-container-not-receiving-host-resolv-conf-settings/811

and here:

moby/moby#20037

Gitea deployment broken

Taking your copy of gitea-deployment;

error: error validating "gitea-deployment.yaml": error validating data: ValidationError(Deployment.spec): missing required field "selector" in io.k8s.api.apps.v1.DeploymentSpec; if you choose to ignore these errors, turn validation off with --validate=false

Needs an update?