the-nexus/deploy.sh

#!/usr/bin/env bash
# deploy.sh — pull latest main and restart the Nexus
#
# Usage (on the VPS):
#   ./deploy.sh          — deploy nexus-main (port 4200)
#   ./deploy.sh staging  — deploy nexus-staging (port 4201)
#
# Expected layout on VPS:
#   /opt/the-nexus/       ← git clone of this repo (git remote = origin, branch = main)
#   nginx site config     ← /etc/nginx/sites-enabled/the-nexus
set -euo pipefail

SERVICE="${1:-nexus-main}"

case "$SERVICE" in
  staging) SERVICE="nexus-staging" ;;
  main)    SERVICE="nexus-main" ;;
esac

REPO_DIR="$(cd "$(dirname "$0")" && pwd)"

echo "==> Pulling latest main …"
git -C "$REPO_DIR" fetch origin
git -C "$REPO_DIR" checkout main
git -C "$REPO_DIR" reset --hard origin/main

echo "==> Building and restarting $SERVICE …"
docker compose -f "$REPO_DIR/docker-compose.yml" build "$SERVICE"
docker compose -f "$REPO_DIR/docker-compose.yml" up -d --force-recreate "$SERVICE"

echo "==> Reloading nginx …"
nginx -t && systemctl reload nginx

echo "==> Done. $SERVICE is live."