Add Caddy Route

Add a reverse proxy route to an encrypted Caddyfile.

Parameter Handling

If parameters are missing from $ARGUMENTS, use mcp_question to gather them:

mcp_question({
  questions: [
    {
      question: "Which host's Caddyfile should be updated?",
      header: "Host",
      options: [
        { label: "pilaster (Recommended)", description: "Main web services host" },
        { label: "monolith", description: "Infrastructure services" },
        { label: "zenith", description: "AI/GPU workloads" },
        { label: "obelisk", description: "GPU compute host" }
      ]
    },
    {
      question: "What domain should this route serve?",
      header: "Domain",
      options: [
        { label: "Enter domain...", description: "e.g., myservice.meskill.farm" }
      ]
    },
    {
      question: "What is the backend service address?",
      header: "Backend",
      options: [
        { label: "Enter backend...", description: "e.g., myservice:8080 (container:port)" }
      ]
    }
  ]
})

Expected $ARGUMENTS format: <hostname> <domain> <backend>

• Example: pilaster myservice.meskill.farm myservice:8080

Steps

1. Unlock agenix

agenix-helper unlock

2. Export current Caddyfile

agenix view hosts/<hostname>/files/caddy/Caddyfile.age > /tmp/Caddyfile

3. Add the new route

Append to /tmp/Caddyfile:

<domain> {
  reverse_proxy <backend>
}

4. Re-encrypt

rm hosts/<hostname>/files/caddy/Caddyfile.age
agenix edit -i /tmp/Caddyfile hosts/<hostname>/files/caddy/Caddyfile.age
rm /tmp/Caddyfile

5. Rekey and lock

agenix rekey -a
agenix-helper lock

Caddyfile Patterns

Basic Reverse Proxy

service.meskill.farm {
  reverse_proxy container:8080
}

With Header Modification

ollama.meskill.farm {
  reverse_proxy ollama:11434 {
    header_up Host localhost
  }
}

Cloudflare Tunnel (Internal + External)

service-int.meskill.farm service.meskill.farm {
  reverse_proxy container:8080
}

Multiple Domains

service.meskill.farm www.service.meskill.farm {
  reverse_proxy container:8080
}

Global Config (usually at top)

{
  acme_dns cloudflare {env.CF_API_TOKEN}
  email [email protected]
}

Caddy Restart

The Caddy container is configured to restart on Caddyfile changes:

systemd.services.docker-caddy = {
  restartTriggers = [config.age.secrets.<hostname>_caddy_caddyfile.path];
};

Example

/add-caddy-route pilaster myservice.meskill.farm myservice:8080

Verification

After deployment:

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

# Reload Caddy
docker exec caddy caddy reload --config /etc/caddy/Caddyfile