ced4568
d2280d0f0d
Named-bridge-network production Compose (not host networking, unlike dev) for rn-platform-01; egress-proxy + agents for rn-lab-host-01. Caddy reverse proxy, single public origin, Grafana restricted to management_cidr. iptables-restore firewall rulesets for all three hosts (Proxmox host, rn-platform-01, rn-lab-host-01) codifying the Platform/Lab-Host boundary: no student-to-student traffic, no direct Proxmox exposure, no direct Postgres/Provisioner exposure from the Lab Host. Mutual TLS for the Provisioner<->Lab Host Docker connection: certificate generation/verification scripts, dockerd TLS config, firewall-restricted port 2376. Application support already existed since Phase 1; this is purely the operational half. Validated: docker compose config, caddy validate, firewall structural lint, and a real openssl s_server/s_client mTLS handshake proving the cert chain and mutual-auth rejection (legitimate client verified, rogue client correctly rejected with verify code 19).
74 lines
3.1 KiB
Bash
Executable File
74 lines
3.1 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Generates a private CA and a mutual-TLS cert/key pair for the Provisioner <-> rn-lab-host-01
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# Docker Engine connection (docs/PRODUCTION_NETWORK_SECURITY.md §7). The application already
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# supports this (platform/provisioner/src/docker.js buildClient() has required mTLS since
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# Phase 1) — this script only ever needed to exist for the CERTIFICATES, not new app code.
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#
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# Output goes to $OUT_DIR (default ./out, gitignored) — never into a tracked path. Deploy the
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# resulting files with the `docker-tls` Ansible role, which places:
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# rn-lab-host-01: ca.pem, server-cert.pem, server-key.pem -> dockerd's --tlsverify config
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# rn-platform-01: ca.pem, provisioner-client-cert.pem, provisioner-client-key.pem
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# -> /etc/rootnode/docker-tls/ (referenced by lab-hosts.yaml)
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#
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# Usage:
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# ./generate-docker-tls.sh [--out-dir DIR] [--lab-host-ip IP] [--lab-host-dns NAME] [--days N]
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set -euo pipefail
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OUT_DIR="./out"
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LAB_HOST_IP="127.0.0.1"
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LAB_HOST_DNS="rn-lab-host-01.internal"
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DAYS=825 # ~2.25 years — matches modern browser/OS max cert lifetime conventions; see rotation runbook for cadence
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while [ $# -gt 0 ]; do
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case "$1" in
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--out-dir) OUT_DIR="$2"; shift 2 ;;
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--lab-host-ip) LAB_HOST_IP="$2"; shift 2 ;;
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--lab-host-dns) LAB_HOST_DNS="$2"; shift 2 ;;
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--days) DAYS="$2"; shift 2 ;;
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*) echo "Unknown argument: $1" >&2; exit 1 ;;
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esac
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done
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mkdir -p "$OUT_DIR"
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cd "$OUT_DIR"
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umask 077 # private keys must never be group/world readable, from the moment they're written
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echo "==> Generating CA"
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openssl genrsa -out ca-key.pem 4096
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openssl req -new -x509 -days "$DAYS" -key ca-key.pem -sha256 -out ca.pem \
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-subj "/O=RootNode Academy/CN=RootNode Docker TLS CA"
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echo "==> Generating server cert for rn-lab-host-01 (dockerd)"
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openssl genrsa -out server-key.pem 4096
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openssl req -subj "/CN=$LAB_HOST_DNS" -sha256 -new -key server-key.pem -out server.csr
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cat > server-extfile.cnf <<EOF
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subjectAltName = DNS:$LAB_HOST_DNS,IP:$LAB_HOST_IP
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extendedKeyUsage = serverAuth
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EOF
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openssl x509 -req -days "$DAYS" -sha256 -in server.csr -CA ca.pem -CAkey ca-key.pem \
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-CAcreateserial -out server-cert.pem -extfile server-extfile.cnf
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echo "==> Generating client cert for the Provisioner"
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openssl genrsa -out provisioner-client-key.pem 4096
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openssl req -subj "/CN=rootnode-provisioner" -new -key provisioner-client-key.pem -out client.csr
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cat > client-extfile.cnf <<EOF
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extendedKeyUsage = clientAuth
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EOF
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openssl x509 -req -days "$DAYS" -sha256 -in client.csr -CA ca.pem -CAkey ca-key.pem \
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-CAcreateserial -out provisioner-client-cert.pem -extfile client-extfile.cnf
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rm -f server.csr client.csr server-extfile.cnf client-extfile.cnf
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chmod 0400 ca-key.pem server-key.pem provisioner-client-key.pem
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chmod 0444 ca.pem server-cert.pem provisioner-client-cert.pem
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echo "==> Done. Generated in $OUT_DIR:"
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ls -la
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echo
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echo "Deploy server-{cert,key}.pem + ca.pem to rn-lab-host-01 (docker-tls Ansible role)."
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echo "Deploy provisioner-client-{cert,key}.pem + ca.pem to rn-platform-01 (same role)."
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echo "Verify with: ../verify-docker-tls.sh $OUT_DIR <lab-host-ip>"
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