Experiments with a modern stack

Steps

Edit environment variables

Set environment variables

source .env

Create Cluster

kops create cluster \
        --zones us-east-1a \
        --node-count 1 \
        --node-size t3.small \
        --master-size t3.medium \
        --ssh-public-key ssh/zigdata.pub \
        --name $NAME

kops update cluster ${NAME} --yes

run watch kops validate cluster to track the cluster creation process. Even after initial connectivity, the cluster may take some time to become stable

Add helm (tiller) to cluster

kubectl create serviceaccount --namespace kube-system tiller
kubectl create clusterrolebinding tiller-cluster-rule --clusterrole=cluster-admin --serviceaccount=kube-system:tiller
helm init --service-account tiller

Create nginx ingress

helm install stable/nginx-ingress --name zigdata-ingress

Add A records to route53 that point to the load balancer that the ingress deployment creates

python bin/setupDNS.py

Install cert-manager to handle SSL/TLS

kubectl apply -f https://raw.githubusercontent.com/jetstack/cert-manager/release-0.6/deploy/manifests/00-crds.yaml
kubectl create namespace cert-manager
kubectl label namespace cert-manager certmanager.k8s.io/disable-validation=true
helm repo update
helm install --name cert-manager --namespace cert-manager stable/cert-manager

Create Issuers once cert-manager is ready

kubectl apply -f zigdata/staging-issuer.yaml
kubectl apply -f zigdata/production-issuer.yaml

Deployments

source .deployer
# redeploy whole site
deploy_all
# redeploy one chart 
redeploy <chart>

optional

helm install --name heapster stable/heapster --namespace kube-system
helm install --name dashboard stable/kubernetes-dashboard --namespace kube-system
helm install --name postgres stable/postgresql
helm install --name redis stable/redis

Blogging

hot reloading at zigdata.org

./bin/live-blogging.sh