DevOps: Setup GitLab v16.7.3 on Kubernetes v1.25.1

In this blog, we will guide you through the process of setting up GitLab-v16.7.3 Community Edition on Kubernetes-v1.25.1, unlocking a powerful combination of version control and container orchestration. Whether you're a seasoned developer or just starting your journey in the world of DevOps, this step-by-step guide will help you seamlessly integrate GitLab CE with Kubernetes, harnessing the full potential of these cutting-edge technologies for enhanced development workflows. Let's dive into the details and elevate your software development experience.

Get Started

Requirements

1. Let's clone git repo

git clone https://github.com/vinaykagithapu/gitlab-on-k8s.git cd gitlab-on-k8s/v16.7.3/nginx-ssl-helm-kind-v1.25.1

Setup K8s Cluster

1. Let's create K8s v1.25.1 poc-gitlab using kind.

kind create cluster --name poc-gitlab --image kindest/node:v1.25.1 --config kind/config.yaml kubectl get nodes

2. Install metal-lb

kubectl apply -f https://raw.githubusercontent.com/metallb/metallb/v0.13.7/config/manifests/metallb-native.yaml kubectl wait --namespace metallb-system \ --for=condition=ready pod \ --selector=app=metallb \ --timeout=90s kubectl -n metallb-system get all

3. Configure IP addresses in kind/metallb-ip-pool.yaml and deploy metalLB IP address pool.

# Inspect docker network(kind) IP address range. docker network inspect -f '{{.IPAM.Config}}' kind # Configure IP address range in kind/metallb-ip-pool.yaml kubectl apply -f kind/metallb-ip-pool.yaml

Install GitLab

1. Add GitLab helm repo to local machine.

helm repo add gitlab https://charts.gitlab.io/ helm repo update

2. Deploy gitlab/gitlab chart with v7.7.3-values.yaml file

helm upgrade --install app gitlab/gitlab \ --version 7.7.3 \ -n gitlab --create-namespace \ -f v7.7.3-values.yaml

3. Wait for 5-10 minutes and check the status of pods

kubectl -n gitlab get pods

Verify

1. Get the domain name & IP address from ingress.

kubectl -n gitlab get ingress

2. Configure an entry in /etc/hosts.

sudo nano /etc/hosts # Example Entry # 172.18.255.10 gitlab.hackwithv.com

3. Get initial root password.

INITIAL_ROOT_PASS=$(kubectl -n gitlab get secret app-gitlab-initial-root-password -ojsonpath='{.data.password}' | base64 --decode ; echo)

4. Access the gitlab UI at https://gitlab.hackwithv.com/.

echo -e "GitLab-UI: https://gitlab.hackwithv.com/\nUser : root\nPass : $INITIAL_ROOT_PASS"

5. Login with above username and password.

6. Check your sign-up restrictions > Deactivate > uncheck Sign-up enabled > Save changes

CleanUp

1. Remove every resource.

helm uninstall app -n gitlab sleep 30 kubectl -n gitlab delete pvc data-app-postgresql-0 \ redis-data-app-redis-master-0 \ repo-data-app-gitaly-0 kubectl delete namespace gitlab kind delete cluster --name poc-gitlab