deployment/02_deploy_to_controller/templates/connection_check.sh.j2

#!/bin/bash

# Configuration
APP_SERVER="student-admin@group18"
INITIAL_SETUP_SCRIPT="/opt/CS_553/deployment/02_deploy_to_controller/scripts/initial_ssh_config.sh"
TAILSCALE_KEY_FILE="/home/ubuntu/.tailscale_key"
ANSIBLE_PLAYBOOK="/opt/CS_553/deployment/01_deploy_to_app/playbooks/main.yml"
ANSIBLE_INVENTORY="/opt/CS_553/deployment/01_deploy_to_app/inventory/hosts.ini"
ANSIBLE_CONFIG="/opt/CS_553/deployment/01_deploy_to_app/ansible.cfg"
VAULT_PASSWORD_FILE="/home/ubuntu/.ansible/vault_password.txt"

# Function to check SSH connection
check_ssh_connection() {
  ssh -o BatchMode=yes -o ConnectTimeout=5 $APP_SERVER exit
  return $?
}

# Main logic
if ! check_ssh_connection; then
  echo "Connection failed. Running initial setup script and 01 ansible script..."
  if [ -f "$TAILSCALE_KEY_FILE" ]; then
    TAILSCALE_KEY=$(cat "$TAILSCALE_KEY_FILE")
    $INITIAL_SETUP_SCRIPT -k "$TAILSCALE_KEY"

    # Run the 01 ansible script
    if [ -f "$ANSIBLE_PLAYBOOK" ] && [ -f "$ANSIBLE_INVENTORY" ] && [ -f "$ANSIBLE_CONFIG" ] && [ -f "$VAULT_PASSWORD_FILE" ]; then
      ANSIBLE_CONFIG="$ANSIBLE_CONFIG" ansible-playbook -i "$ANSIBLE_INVENTORY" "$ANSIBLE_PLAYBOOK" --vault-password-file "$VAULT_PASSWORD_FILE"
    else
      echo "One or more required files for running the ansible playbook are missing."
      exit 1
    fi
  else
    echo "Tailscale key file not found. Cannot run initial setup or ansible playbook."
    exit 1
  fi
else
  echo "Connection successful. No action needed."
fi