managarten/docs/STAGING_SETUP.md

Staging Environment Setup Guide

This document describes the complete staging environment setup for ManaCore apps on Hetzner VPS with HTTPS via Caddy reverse proxy.

Overview

Component	Details
Server	Hetzner VPS (46.224.108.214)
Domain	manacore.ai (Namecheap)
Reverse Proxy	Caddy (auto-SSL via Let's Encrypt)
Container Runtime	Docker Compose
SSH Access	ssh -i ~/.ssh/hetzner_deploy_key deploy@46.224.108.214

Architecture

                                    ┌─────────────────────────────────────────────┐
                                    │           Hetzner VPS (46.224.108.214)      │
                                    │                                             │
    Internet                        │  ┌─────────────────────────────────────┐   │
       │                            │  │         Caddy (ports 80/443)        │   │
       │                            │  │         Auto-SSL via Let's Encrypt  │   │
       ▼                            │  └──────────────┬──────────────────────┘   │
┌──────────────┐                    │                 │                          │
│   Namecheap  │                    │                 ▼                          │
│  DNS Records │────────────────────│  ┌─────────────────────────────────────┐   │
│              │                    │  │      Docker Compose Services        │   │
│ *.staging    │                    │  │                                     │   │
│ A → IP       │                    │  │  mana-core-auth:3001               │   │
└──────────────┘                    │  │  chat-web:3000 / chat-backend:3002 │   │
                                    │  │  clock-web:5187 / clock-backend:3017│   │
                                    │  │  calendar-web:5186 / calendar-api:3016│ │
                                    │  │  todo-web:5188 / todo-backend:3018 │   │
                                    │  │  manacore-web:5173                 │   │
                                    │  │  postgres:5432 / redis:6379        │   │
                                    │  └─────────────────────────────────────┘   │
                                    └─────────────────────────────────────────────┘

Domain Mapping

DNS Configuration (Namecheap)

Type	Host	Value	TTL
A	staging	46.224.108.214	Automatic
A	*.staging	46.224.108.214	Automatic

The wildcard record *.staging enables all subdomains like auth.staging.manacore.ai, clock.staging.manacore.ai, etc.

Staging URLs

Service	URL	Internal Port
Auth	https://auth.staging.manacore.ai	3001
ManaCore Web	https://staging.manacore.ai	5173
Chat Web	https://chat.staging.manacore.ai	3000
Chat API	https://chat-api.staging.manacore.ai	3002
Clock Web	https://clock.staging.manacore.ai	5187
Clock API	https://clock-api.staging.manacore.ai	3017
Calendar Web	https://calendar.staging.manacore.ai	5186
Calendar API	https://calendar-api.staging.manacore.ai	3016
Todo Web	https://todo.staging.manacore.ai	5188
Todo API	https://todo-api.staging.manacore.ai	3018

Caddy Reverse Proxy

Installation (One-time setup)

# SSH into server
ssh -i ~/.ssh/hetzner_deploy_key deploy@46.224.108.214

# Create Caddy data directory
mkdir -p ~/caddy_data ~/caddy_config

# Run Caddy container
docker run -d \
  --name caddy \
  --network host \
  --restart unless-stopped \
  -v ~/Caddyfile:/etc/caddy/Caddyfile \
  -v ~/caddy_data:/data \
  -v ~/caddy_config:/config \
  caddy:2-alpine

Configuration

The Caddyfile is stored at:

• Server: ~/Caddyfile
• Repo: docker/caddy/Caddyfile.staging

# ManaCore Staging Reverse Proxy

auth.staging.manacore.ai {
    reverse_proxy localhost:3001
}

chat.staging.manacore.ai {
    reverse_proxy localhost:3000
}

chat-api.staging.manacore.ai {
    reverse_proxy localhost:3002
}

staging.manacore.ai {
    reverse_proxy localhost:5173
}

calendar.staging.manacore.ai {
    reverse_proxy localhost:5186
}

calendar-api.staging.manacore.ai {
    reverse_proxy localhost:3016
}

clock.staging.manacore.ai {
    reverse_proxy localhost:5187
}

clock-api.staging.manacore.ai {
    reverse_proxy localhost:3017
}

todo.staging.manacore.ai {
    reverse_proxy localhost:5188
}

todo-api.staging.manacore.ai {
    reverse_proxy localhost:3018
}

Updating Caddy Configuration

# Copy updated config to server
scp -i ~/.ssh/hetzner_deploy_key docker/caddy/Caddyfile.staging deploy@46.224.108.214:~/Caddyfile

# Reload Caddy (no downtime)
ssh -i ~/.ssh/hetzner_deploy_key deploy@46.224.108.214 "docker exec caddy caddy reload --config /etc/caddy/Caddyfile"

Caddy Management Commands

# View logs
docker logs caddy -f

# Restart Caddy
docker restart caddy

# Check Caddy status
docker exec caddy caddy validate --config /etc/caddy/Caddyfile

SvelteKit Runtime Environment Variables

The Problem

SvelteKit's $env/static/public variables are replaced at build time. When Docker images are built in CI, the environment variables are baked into the JavaScript bundles. This means containers cannot use different URLs for different environments.

The Solution

Use $env/dynamic/private in hooks.server.ts to read environment variables at runtime, then inject them into the HTML for client-side access.

Implementation

Each SvelteKit web app has a hooks.server.ts that:

1. Reads _CLIENT environment variables at runtime
2. Injects them into the HTML via <script> tag
3. Makes them available on window.__PUBLIC_*__

Example: apps/clock/apps/web/src/hooks.server.ts

import type { Handle } from '@sveltejs/kit';
import { env } from '$env/dynamic/private';

export const handle: Handle = async ({ event, resolve }) => {
    // Read env vars at RUNTIME (not build time)
    const authUrlClient = env.PUBLIC_MANA_CORE_AUTH_URL_CLIENT || env.PUBLIC_MANA_CORE_AUTH_URL || '';
    const backendUrlClient = env.PUBLIC_BACKEND_URL_CLIENT || env.PUBLIC_BACKEND_URL || '';

    return resolve(event, {
        transformPageChunk: ({ html }) => {
            // Inject into HTML for client-side access
            const envScript = `<script>
window.__PUBLIC_MANA_CORE_AUTH_URL__ = "${authUrlClient}";
window.__PUBLIC_BACKEND_URL__ = "${backendUrlClient}";
</script>`;
            return html.replace('<head>', `<head>${envScript}`);
        },
    });
};

Environment Variable Pattern

Each web app container receives two sets of URLs:

Variable	Purpose	Example
PUBLIC_BACKEND_URL	Server-side (Docker network)	http://clock-backend:3017
PUBLIC_BACKEND_URL_CLIENT	Client-side (browser)	https://clock-api.staging.manacore.ai
PUBLIC_MANA_CORE_AUTH_URL	Server-side auth	http://mana-core-auth:3001
PUBLIC_MANA_CORE_AUTH_URL_CLIENT	Client-side auth	https://auth.staging.manacore.ai

Docker Compose Configuration

File Locations

File	Purpose
docker-compose.staging.yml	Staging configuration (repo)
~/manacore-staging/docker-compose.yml	Server deployment

Key Configuration Sections

Web App Environment Variables:

clock-web:
  environment:
    NODE_ENV: staging
    PORT: 5187
    # Server-side URLs (Docker internal network)
    PUBLIC_BACKEND_URL: http://clock-backend:3017
    PUBLIC_MANA_CORE_AUTH_URL: http://mana-core-auth:3001
    # Client-side URLs (browser access via HTTPS)
    PUBLIC_BACKEND_URL_CLIENT: https://clock-api.staging.manacore.ai
    PUBLIC_MANA_CORE_AUTH_URL_CLIENT: https://auth.staging.manacore.ai

Backend CORS Configuration:

clock-backend:
  environment:
    CORS_ORIGINS: https://clock.staging.manacore.ai,https://staging.manacore.ai,http://localhost:5187

Auth Service CORS:

mana-core-auth:
  environment:
    CORS_ORIGINS: https://chat.staging.manacore.ai,https://staging.manacore.ai,https://calendar.staging.manacore.ai,https://clock.staging.manacore.ai,https://todo.staging.manacore.ai,http://localhost:3000,http://localhost:5173

Syncing Configuration to Server

# Copy docker-compose to server
scp -i ~/.ssh/hetzner_deploy_key docker-compose.staging.yml deploy@46.224.108.214:~/manacore-staging/docker-compose.yml

# Recreate containers with new config
ssh -i ~/.ssh/hetzner_deploy_key deploy@46.224.108.214 "cd ~/manacore-staging && docker compose up -d --force-recreate"

Deployment Workflow

CI/CD Pipeline

The GitHub Actions workflow (.github/workflows/cd-staging.yml):

1. Builds Docker images on push to dev branch
2. Pushes images to GitHub Container Registry (ghcr.io)
3. SSHs into staging server
4. Pulls latest images
5. Restarts containers

Manual Deployment

# 1. Build and push images (from local)
docker build -t ghcr.io/memo-2023/clock-web:latest -f apps/clock/apps/web/Dockerfile .
docker push ghcr.io/memo-2023/clock-web:latest

# 2. SSH into server
ssh -i ~/.ssh/hetzner_deploy_key deploy@46.224.108.214

# 3. Pull and restart
cd ~/manacore-staging
docker compose pull
docker compose up -d --force-recreate

Updating Environment Variables

1. Edit docker-compose.staging.yml locally
2. Copy to server: scp -i ~/.ssh/hetzner_deploy_key docker-compose.staging.yml deploy@46.224.108.214:~/manacore-staging/docker-compose.yml
3. Recreate affected containers: docker compose up -d --force-recreate <service-name>

Troubleshooting

Mixed Content Errors

Symptom: Browser console shows "Mixed Content: The page was loaded over HTTPS, but requested an insecure resource"

Cause: Client-side JavaScript is calling HTTP URLs instead of HTTPS

Solution:

1. Check _CLIENT environment variables in docker-compose.yml
2. Ensure they use https:// staging domains
3. Recreate web containers: docker compose up -d --force-recreate <web-service>

CORS Errors

Symptom: Browser console shows "Access-Control-Allow-Origin" errors

Cause: Backend CORS_ORIGINS doesn't include the HTTPS staging domain

Solution:

1. Add the HTTPS domain to CORS_ORIGINS in docker-compose.yml
2. Recreate backend containers

Caddy SSL Certificate Issues

Symptom: Browser shows SSL certificate warning

Solution:

# Check Caddy logs
docker logs caddy

# Force certificate renewal
docker exec caddy caddy reload --config /etc/caddy/Caddyfile

Container Health Check Failures

Symptom: Container shows "unhealthy" status

Solution:

# Check container logs
docker logs <container-name>

# Check health status
docker inspect <container-name> | grep -A 20 Health

SvelteKit Pre-Compressed Config Files (IMPORTANT)

Symptom: Browser calls localhost:3001 instead of staging URLs, even though:

• Server logs show correct config was generated
• docker exec <container> cat .../config.json shows correct values
• curl https://app.staging.manacore.ai/config.json shows wrong (localhost) values

Root Cause: SvelteKit pre-compresses static files during build:

• config.json - raw file (overwritten by entrypoint ✓)
• config.json.br - Brotli compressed (stale from build ✗)
• config.json.gz - Gzip compressed (stale from build ✗)

When browsers send Accept-Encoding: gzip, br, SvelteKit serves the pre-compressed versions, which contain the old localhost values from build time.

Solution (Permanent): The docker-entrypoint.sh must delete pre-compressed files:

# After generating config.json, remove stale compressed versions
rm -f /app/apps/<app>/apps/web/build/client/config.json.br
rm -f /app/apps/<app>/apps/web/build/client/config.json.gz

Solution (Quick Fix): For immediate fix without redeploying:

# Remove compressed files and restart
docker exec <app>-web-staging rm -f /app/apps/<app>/apps/web/build/client/config.json.br /app/apps/<app>/apps/web/build/client/config.json.gz
docker restart <app>-web-staging
docker restart caddy  # Clear any Caddy cache

Diagnosis Commands:

# Check if pre-compressed files exist
docker exec <app>-web-staging ls -la /app/apps/<app>/apps/web/build/client/config.json*

# Test what browser receives (from local machine, not server)
curl https://<app>.staging.manacore.ai/config.json

# Compare file content vs HTTP response
docker exec <app>-web-staging cat /app/apps/<app>/apps/web/build/client/config.json
# vs
curl https://<app>.staging.manacore.ai/config.json

Caddy Response Caching

Symptom: After fixing config.json on the server, curl still returns old values

Solution:

# Restart Caddy to clear any cached responses
docker restart caddy

Disk Space Full (Docker)

Symptom: CI/CD deployment fails with "no space left on device"

Cause: Docker images, containers, and build cache accumulating over time

Solution (Immediate):

ssh -i ~/.ssh/hetzner_deploy_key deploy@46.224.108.214

# Check disk usage
df -h

# Clean up all unused Docker resources
docker system prune -af --volumes
docker builder prune -af

Solution (Preventive): Set up a weekly cleanup cronjob:

crontab -e
# Add this line (runs every Sunday at 3 AM):
0 3 * * 0 docker system prune -af --volumes >> /home/deploy/docker-cleanup.log 2>&1

Adding a New App to Staging

1. Update DNS (if needed)

If using a new subdomain pattern, update Namecheap DNS. The *.staging wildcard should cover most cases.

2. Update Caddyfile

Add entries for web and API:

newapp.staging.manacore.ai {
    reverse_proxy localhost:<WEB_PORT>
}

newapp-api.staging.manacore.ai {
    reverse_proxy localhost:<API_PORT>
}

3. Update docker-compose.staging.yml

Add the new services with proper environment variables:

newapp-web:
  image: ghcr.io/memo-2023/newapp-web:latest
  environment:
    PUBLIC_BACKEND_URL: http://newapp-backend:<API_PORT>
    PUBLIC_MANA_CORE_AUTH_URL: http://mana-core-auth:3001
    PUBLIC_BACKEND_URL_CLIENT: https://newapp-api.staging.manacore.ai
    PUBLIC_MANA_CORE_AUTH_URL_CLIENT: https://auth.staging.manacore.ai
  ports:
    - "<WEB_PORT>:<WEB_PORT>"

4. Create docker-entrypoint.sh (CRITICAL)

Create apps/<app>/apps/web/docker-entrypoint.sh:

#!/bin/sh
set -e

echo "🔧 Generating runtime configuration..."

# Environment variables with development defaults
BACKEND_URL=${BACKEND_URL:-"http://localhost:<PORT>"}
AUTH_URL=${AUTH_URL:-"http://localhost:3001"}

echo "📝 Config values:"
echo "   BACKEND_URL: $BACKEND_URL"
echo "   AUTH_URL: $AUTH_URL"

# Generate config.json from environment variables
cat > /app/apps/<app>/apps/web/build/client/config.json <<EOF
{
  "BACKEND_URL": "${BACKEND_URL}",
  "AUTH_URL": "${AUTH_URL}"
}
EOF

echo "✅ Configuration generated at /app/apps/<app>/apps/web/build/client/config.json"
cat /app/apps/<app>/apps/web/build/client/config.json

# CRITICAL: Remove pre-compressed versions (SvelteKit serves these instead of raw file)
rm -f /app/apps/<app>/apps/web/build/client/config.json.br
rm -f /app/apps/<app>/apps/web/build/client/config.json.gz
echo "🗑️  Removed stale pre-compressed config files"

echo "🚀 Starting <App> web app..."
exec "$@"

Make sure the Dockerfile copies and uses this entrypoint:

COPY apps/<app>/apps/web/docker-entrypoint.sh /usr/local/bin/
RUN chmod +x /usr/local/bin/docker-entrypoint.sh
ENTRYPOINT ["docker-entrypoint.sh"]
CMD ["node", "build"]

5. Create static/config.json for local development

Create apps/<app>/apps/web/static/config.json for local dev (this gets overwritten at runtime in Docker):

{
  "BACKEND_URL": "http://localhost:<PORT>",
  "AUTH_URL": "http://localhost:3001"
}

6. Implement runtime.ts config loader

Create apps/<app>/apps/web/src/lib/config/runtime.ts:

import { browser, dev } from '$app/environment';

export interface RuntimeConfig {
  BACKEND_URL: string;
  AUTH_URL: string;
}

const DEV_CONFIG: RuntimeConfig = {
  BACKEND_URL: 'http://localhost:<PORT>',
  AUTH_URL: 'http://localhost:3001',
};

let cachedConfig: RuntimeConfig | null = null;

export async function getConfig(): Promise<RuntimeConfig> {
  if (!browser) return DEV_CONFIG;
  if (cachedConfig) return cachedConfig;

  try {
    const res = await fetch('/config.json');
    if (!res.ok) {
      if (dev) return DEV_CONFIG;
      throw new Error(`Failed to load config: ${res.status}`);
    }
    cachedConfig = await res.json();
    return cachedConfig!;
  } catch (error) {
    if (dev) return DEV_CONFIG;
    throw error;
  }
}

export async function getAuthUrl(): Promise<string> {
  const config = await getConfig();
  return config.AUTH_URL;
}

export async function getBackendUrl(): Promise<string> {
  const config = await getConfig();
  return config.BACKEND_URL;
}

7. Deploy

1. Sync Caddyfile: scp ... Caddyfile.staging deploy@server:~/Caddyfile
2. Reload Caddy: docker exec caddy caddy reload --config /etc/caddy/Caddyfile
3. Sync docker-compose: scp ... docker-compose.staging.yml deploy@server:~/manacore-staging/docker-compose.yml
4. Deploy containers: docker compose up -d

Quick Reference Commands

# SSH into server
ssh -i ~/.ssh/hetzner_deploy_key deploy@46.224.108.214

# View all containers
docker ps

# View container logs
docker logs -f <container-name>

# Restart a container
docker restart <container-name>

# Recreate containers with new config
cd ~/manacore-staging && docker compose up -d --force-recreate

# Check Caddy SSL certificates
docker exec caddy caddy validate --config /etc/caddy/Caddyfile

# Test HTTPS endpoint
curl -s https://auth.staging.manacore.ai/api/v1/health

# Check container env vars
docker exec <container-name> printenv | grep -E 'CLIENT|CORS'

Related Documentation

• Local Development Guide
• CI/CD Deployment Guide
• Environment Variables