install.sh

#!/usr/bin/env bash
bold=$(tput bold)
normal=$(tput sgr0)

set -e

echo "${bold}[Dependencies]${normal}"
echo "Making sure dependencies are installed..."

if ! docker ps; then
  echo "Docker doesn't appear to be running, exiting ❌"
  exit 1
fi

if which terragrunt; then
  echo "Terragrunt installed ✅"
else
  read -p "Terragrunt is not installed — do you want to install it? (y/N) " -n 1 -r
  echo ""
  if [[ $REPLY =~ ^[Yy]$ ]]
  then
    brew install terragrunt
  else
    exit 1
  fi

fi

if which kubectl; then
  echo "Kubectl installed ✅"
else
  read -p "Kubectl is not installed — do you want to install it? (y/N) " -n 1 -r
  echo ""
  if [[ $REPLY =~ ^[Yy]$ ]]
  then
    brew install kubectl
  else
    exit 1
  fi
fi

if which helm; then
  echo "Helm installed ✅"
else
  read -p "Helm is not installed — do you want to install it? (y/N) " -n 1 -r
  echo ""
  if [[ $REPLY =~ ^[Yy]$ ]]
  then
    brew install helm
  else
    exit 1
  fi
fi

echo "Checking whether there is an installed kubeconfig file..."

echo "Kubeconfig properly installed ✅"

echo "Installing NGINX ingress..."

pushd infrastructure/modules/nginx-ingress
if terragrunt apply --terragrunt-non-interactive -auto-approve 2>/dev/null; then
  echo "NGINX ingress installed ✅"
else
  echo "Failed to install NGINX ingress ❌"
  exit 1
fi
popd

echo "Waiting for NGINX load balancer to get initialized..."

while ! LB_IPV4=$(kubectl get svc -n nginx-ingress nginx-ingress-ingress-nginx-controller --output jsonpath='{.status.loadBalancer.ingress[0].ip}'); do sleep 1; done

echo "NGINX load balancer initialized (IPv4 address: $LB_IPV4) ✅"

echo "Configuring parameters..."

echo "${bold}[GitHub Personal Access Token]${normal}"
echo "Create a Personal access token (PAT) with \`write:packages\`+\`read:packages\` permissions (https://github.com/settings/tokens)"

read -p "Enter your PAT: " GITHUB_PAT
read -p "Enter the GitHub username you used to generate the PAT: " GITHUB_USERNAME

echo "Logging in to GitHub package registry..."
echo $GITHUB_PAT | docker login ghcr.io --username "$GITHUB_USERNAME" --password-stdin
echo "Done ✅"

echo "${bold}[Email]${normal}"
echo "An email is required by LetsEncrypt in order to send warnings about certificates about to expire"
read -p "Enter your email address: " ACME_EMAIL

echo "${bold}[Domain name]${normal}"
echo "Next we configure DNS settings so that requests to your selected domain name will resolve to the IPv4 address for the NGINX load balancer"
echo "Create an A record in your DNS settings with value ${bold}@${normal} and value ${bold}$LB_IPV4${normal}"
echo "${bold}Note:${normal} You can use a subdomain by setting the value to ${bold}mysubdomain${normal}, but make sure to include that subdomain in the value entered below"

read -p "Enter your domain name: " DOMAIN_NAME
echo 'Verifying DNS settings...'
DIG_RES=$(dig "$DOMAIN_NAME" +short)
if [ "$DIG_RES" = "$LB_IPV4" ]; then
  echo "Record for "$DOMAIN_NAME": "$DIG_RES" ✅"
else
  read -p "Record for "$DOMAIN_NAME": "$DIG_RES" (wanted $LB_IPV4) ❌ Proceed anyway? (y/N)" -n 1 -r
  echo ""
  if ! [[ $REPLY =~ ^[Yy]$ ]]; then
    exit 1
  fi
fi

echo "Setting the domain name in the Terraform configuration..."
sed -i -e "s/\  domain.*=.*/  domain = \"$DOMAIN_NAME\"/" infrastructure/root.hcl
echo "Done ✅"

echo "Setting the GitHub and email settings in the Terraform vars file..."
cat <<EOT >infrastructure/terraform.tfvars
# The personal access token (PAT) you created in your GitHub repo settings
github_pat = "$GITHUB_PAT"
# The Username of the GitHub personal access token, in order to be able to access the GitHub package registry
github_username = "$GITHUB_USERNAME"
# An email that will be registered with LetsEncrypt for your TLS certificates
acme_email = "$ACME_EMAIL"
EOT
echo "Done ✅"

echo "Installing all remaining terraform modules"
pushd infrastructure
if terragrunt run-all apply --terragrunt-non-interactive 2>/dev/null; then
  echo "NGINX ingress installed ✅"
else
  echo "Failed to install NGINX ingress ❌"
  exit 1
fi
popd

GITHUB_USERNAME_LOWERCASE=$(echo "$GITHUB_USERNAME" | awk '{print tolower($0)}')
GITHUB_REPO=$(basename `git rev-parse --show-toplevel`)
echo "Building, pushing & deploying API"
pushd api
API_TAG=ghcr.io/$GITHUB_USERNAME_LOWERCASE/$GITHUB_REPO/nodejs-api:initial
docker buildx build --push --platform linux/amd64,linux/arm64 -t "$API_TAG" .
helm upgrade --install nodejs-api --wait --set "image.repository=$API_TAG" ./charts
popd
echo "---"
echo "All done! ✅"
echo "Access Grafana at $DOMAIN_NAME/grafana"
echo "Access API at $DOMAIN_NAME/api"