---
title: Expose Service on edge2 (Contabo Cloud VPS)
type: runbook
tags:
  - proxmox
aliases: []
related:
  - [[lxc-service-migration]]
  - [[edge2-access-reference]]
  - [[expose-service-contabo]]
  - [[expose-service-home]]
  - [[vaultwarden-plan]]
updated: 2026-06-18
---
# Expose Service on edge2 (Contabo Cloud VPS)

## Context

edge2 is a Proxmox VE 8 node (184.174.35.153 / 100.64.0.26) running LXC containers on an internal bridge (`vmbr0`, subnet `10.10.10.0/24`, gateway `10.10.10.1`). [[services]] run inside unprivileged LXC containers. [[caddy]] on the edge2 host terminates TLS and reverse-proxies to the container's internal IP.

## Prerequisites

- SSH access to edge2: `ssh edge2` (admin@100.64.0.26, key auth, passwordless sudo)
- Debian 13 CT template cached: `local:vztmpl/debian-13-standard_13.1-2_amd64.tar.zst`
- [[dns]] provider access (Cloudflare, GoDaddy, etc.)

## Steps

### 1. Create the LXC container

Pick the next available CTID (current: 100=pdm, 101=wordpress). All CTs use static IPs on the `10.10.10.0/24` subnet.

```bash
ssh edge2

sudo pct create <CTID> local:vztmpl/debian-13-standard_13.1-2_amd64.tar.zst \
  --hostname <hostname> \
  --rootfs local:<DISK_GB> \
  --memory <RAM_MB> \
  --swap 512 \
  --cores <CORES> \
  --net0 name=eth0,bridge=vmbr0,ip=10.10.10.<X>/24,gw=10.10.10.1 \
  --nameserver 1.1.1.1 \
  --unprivileged 1 \
  --features nesting=1 \
  --onboot 1 \
  --start 1

# Verify
sudo pct list
sudo pct exec <CTID> -- ping -c1 1.1.1.1
```

### 2. Install the service inside the container

```bash
sudo pct exec <CTID> -- bash
# ... install service, bind to port on 0.0.0.0 or 10.10.10.<X>
# ... the host will reach the CT via the internal bridge
```

For file transfer into the CT:
```bash
# From edge2 host
sudo pct push <CTID> /path/on/host /path/in/ct
```

### 3. Add Caddy site block on edge2 host

Caddy runs on the edge2 host and terminates TLS.

**For Cloudflare-proxied domains** (orange cloud / Full SSL mode):
```bash
# tls internal generates a self-signed cert — Cloudflare "Full" mode
# encrypts transit without needing a publicly-trusted cert
sudo tee -a /etc/caddy/Caddyfile << 'EOF'

<domain> {
    tls internal
    reverse_proxy 10.10.10.<X>:<PORT>
}
EOF

sudo caddy validate --config /etc/caddy/Caddyfile
sudo systemctl reload caddy
```

**For non-Cloudflare domains** (needs real cert):
```bash
# Caddy will auto-provision a Let's Encrypt cert
sudo tee -a /etc/caddy/Caddyfile << 'EOF'

<domain> {
    reverse_proxy 10.10.10.<X>:<PORT>
}
EOF

sudo caddy validate --config /etc/caddy/Caddyfile
sudo systemctl reload caddy
```

### 4. Configure DNS

**GoDaddy domains:**
```bash
# On cortex/toc
source /home/zvx/projects/.ref/credentials
godaddy-dns.py add-a <zone> <subdomain> 184.174.35.153
```

**Cloudflare domains:**
Manual via Cloudflare dashboard (no API token):
1. A record → 184.174.35.153 (proxied / orange cloud)
2. SSL/TLS mode → Full (not Strict — since `tls internal` uses self-signed)
3. Optional: www CNAME → domain (proxied)

### 5. Verify

```bash
# From edge2 (proper SNI required for tls internal)
curl -sk --resolve <domain>:443:127.0.0.1 -o /dev/null -w "%{http_code}\n" https://<domain>/

# From cortex (direct to origin)
curl -sk --resolve <domain>:443:184.174.35.153 -o /dev/null -w "%{http_code}\n" https://<domain>/

# Via DNS (after propagation)
curl -I https://<domain>/
```

### 6. Update docs

- Add CT to `environment.md` LXC Containers table
- Add credentials to `.ref/credentials`
- Add Tailscale IP if Tailscale is installed in the CT

## Checklist

```
□ CT created, started, networking verified (ping 1.1.1.1)
□ Service installed and running inside CT
□ Caddy site block added and reloaded on edge2 host
□ DNS record pointing to 184.174.35.153
□ SSL mode correct (Full for Cloudflare, auto for others)
□ HTTPS verified from edge2 + externally
□ Docs updated (environment.md, credentials)
```

## Network Reference

| Resource | Value |
|----------|-------|
| edge2 public IP | 184.174.35.153 |
| edge2 Tailscale | 100.64.0.26 |
| Internal bridge | vmbr0, 10.10.10.0/24 |
| Gateway | 10.10.10.1 (edge2 host) |
| DNS in CTs | 1.1.1.1 |
| CT IP range | 10.10.10.10+ (10=pdm, 11=wordpress) |

## CT Creation via PVE API (alternative)

When SSH is unavailable, CTs can be created via the PVE REST API:

```python
import urllib.request, urllib.parse, json, ssl

ctx = ssl.create_default_context()
ctx.check_hostname = False
ctx.verify_mode = ssl.CERT_NONE
base = "https://100.64.0.26:8006/api2/json"

# Authenticate
data = urllib.parse.urlencode({"username": "root@pam", "password": "<EDGE2_ROOT_PASSWORD>"}).encode()
req = urllib.request.Request(f"{base}/access/ticket", data=data)
resp = urllib.request.urlopen(req, context=ctx)
auth = json.loads(resp.read())["data"]
ticket, csrf = auth["ticket"], auth["CSRFPreventionToken"]

# Create CT
params = urllib.parse.urlencode({
    "vmid": <CTID>, "hostname": "<hostname>",
    "ostemplate": "local:vztmpl/debian-13-standard_13.1-2_amd64.tar.zst",
    "cores": 2, "memory": 2048, "swap": 512, "rootfs": "local:16",
    "net0": "name=eth0,bridge=vmbr0,ip=10.10.10.<X>/24,gw=10.10.10.1",
    "nameserver": "1.1.1.1", "unprivileged": 1, "features": "nesting=1",
    "onboot": 1, "start": 1,
}).encode()
req = urllib.request.Request(f"{base}/nodes/edge2/lxc", data=params, method="POST")
req.add_header("Cookie", f"PVEAuthCookie={ticket}")
req.add_header("CSRFPreventionToken", csrf)
resp = urllib.request.urlopen(req, context=ctx)
print(json.loads(resp.read())["data"])  # UPID of creation task
```

Note: The PVE API uses `root@pam` auth. This is separate from the system SSH user (`admin`). See credentials file for the PVE password.
