Quick deploy a static site to a Kubernetes cluster

static-to-cluster

#!/bin/bash

set -e

usage () {
    printf "Usage:\n  $0 <directory> <domain.com> [<version>]\n"
}

if [ $# -lt 2 ]; then
    usage
    exit 1
fi

dir=$1
domain=$2
version=${3:-1.0.0}
repo=ijmacd
image=$repo/$domain:$version
name=${domain%%.*}

echo "Deploying directory '$dir' as $image to https://$domain"

if [[ ! -d $dir ]]; then
    echo "Cannot find directory '$dir'"
    exit 1
fi

docker build -t $image --push -f - . << EOF
FROM nginx:1.27.4

COPY "$dir" /usr/share/nginx/html
EOF

kubectl apply -f - << EOF
apiVersion: apps/v1
kind: Deployment
metadata:
  name: "$name-web"
  labels:
    app.kubernetes.io/name: "static-to-cluster"
    app.kubernetes.io/instance: "$domain"
    app.kubernetes.io/version: "$version"
    app.kubernetes.io/component: web
spec:
  replicas: 1
  selector:
    matchLabels:
      app.kubernetes.io/component: web
      app.kubernetes.io/instance: "$domain"
  template:
    metadata:
      labels:
        app.kubernetes.io/component: web
        app.kubernetes.io/instance: "$domain"
    spec:
      containers:
        - name: web
          image: "$image"
          ports:
            - name: web
              containerPort: 80
---
apiVersion: v1
kind: Service
metadata:
  name: "$name-web"
  labels:
    app.kubernetes.io/component: web
    app.kubernetes.io/name: "static-to-cluster"
    app.kubernetes.io/instance: "$domain"
spec:
  selector:
    app.kubernetes.io/component: web
    app.kubernetes.io/instance: "$domain"
  ports:
    - protocol: TCP
      name: "web"
      port: 80
      targetPort: web
---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: "$name-web"
  annotations:
    kubernetes.io/tls-acme: "true"
    ingress.kubernetes.io/ssl-redirect: "true"
spec:
  rules:
  - host: "$domain"
    http:
      paths:
      - path: /
        pathType: Prefix
        backend:
          service:
            name: "$name-web"
            port:
              name: "web"
  tls:
  - hosts:
    - '$domain'
    secretName: $name-cert
EOF

echo "In a few minutes the site will be available at https://$domain"