Bootstrapping a Kubernetes cluster using Terraform and Argo CD, powered by DigitalOcean.
The goal of this framework is to aid the kubernetes adoption journey of startups and SMBs.
Who is this for?
- Kubernetes adopters
- SMBs who are looking to speed up the k8s adoption
- Builders and curious souls
- terraform cli
- doctl
- kubectl
- DigitalOcean Cloud Account
- DO Access Token (used by Terraform and GH Actions)
- k9s (optional)
The terraform module will create a DigitalOcean Kubernetes cluster(DOKS) and a DigitalOcean Container Registry(DOCR)
git clone https://github.com/hivenetes/k8s-bootstrapper.git
cd infrastructure
# Initialise terraform modules
terraform init
# Modify the `variables.tfvars.example` as per your requirements
# To view the infra plan
terraform plan -var-file="variables.tfvars.example"
# To apply the infra plan
terraform apply -var-file="variables.tfvars.example" --auto-approve
# It takes around 4 minutes to spin up a cluster depending on the size of the nodes etc
# Once terraform has execute the plan it will output the "cluster_id"
# To update cluster credentials to kubeconfig and setup current context run,
# Example: doctl kubernetes cluster kubeconfig save e74d2c45-c513-4c45-9ca3-f592ece1be76
doctl kubernetes cluster kubeconfig save <cluster-id>NOTE: Intended for experimentation/evaluation ONLY. You will be responsible for all infrastructure costs incurred by the used resources.
Follow this one-click guide to integrate the registry with the Kubernetes cluster.
# This command adds credentials to docker so that pull and push commands to your DigitalOcean registry will be authenticated
doctl registry loginWe have leveraged argocd: app of apps pattern to bootstrap the Kubernetes cluster.
# Once the cluster is up and running
kubectl create namespace argocd
kubectl apply -n argocd -f https://raw.githubusercontent.com/argoproj/argo-cd/stable/manifests/install.yaml
# Get the argo password
kubectl -n argocd get secret argocd-initial-admin-secret -o jsonpath="{.data.password}" | base64 -d
# Expose the argocd-server and login with the credentials on localhost:8080
kubectl -n argocd port-forward svc/argocd-server 8080:80
# Open the browser and go to localhost:8080 to access Argo CD UI
# Login with username: `admin`, password: `paste the value from the previous step`# Install industry standard open source tools to build a production grade stack
kubectl apply -f https://raw.githubusercontent.com/hivenetes/bootstrap-doks/main/bootstrap/bootstrap.yaml