85 lines
2.9 KiB
Bash
Executable file
85 lines
2.9 KiB
Bash
Executable file
#!/usr/bin/env bash
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set -euo pipefail
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# certbot-init.sh — obtain the first Let's Encrypt certificate for the
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# «Контракт-чек» edge proxy and (re)start nginx.
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#
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# Bootstrap (first run, no certificate yet):
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# nginx CANNOT start before a certificate exists — the rendered config
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# references /etc/letsencrypt/live/<domain>/*.pem and nginx exits if those
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# files are missing. So the first certificate is obtained in --standalone
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# mode: certbot binds port 80 itself (nginx is down at this point, so the
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# port is free). After issuance the script starts nginx; the certbot renew
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# sidecar then uses the webroot plugin against the running nginx.
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#
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# Subsequent runs (certificate already exists): webroot renew via the running
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# nginx + `nginx -s reload`.
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#
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# Usage:
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# chmod +x deploy/nginx/certbot-init.sh
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# ./deploy/nginx/certbot-init.sh your-domain.example.com admin@example.com
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#
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# Requirements:
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# - DNS A-record for the domain points at this server
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# - NGINX_SERVER_NAME=<same domain> is set in .env
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# - the `services` profile is up (api healthy) — nginx depends on it
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DOMAIN="${1:-}"
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EMAIL="${2:-}"
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if [[ -z "$DOMAIN" || -z "$EMAIL" ]]; then
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echo "Usage: $0 <domain> <email>"
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exit 1
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fi
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if [[ -f .env ]] && ! grep -qE "^NGINX_SERVER_NAME=${DOMAIN}\s*$" .env; then
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echo "ERROR: NGINX_SERVER_NAME in .env must equal ${DOMAIN}." >&2
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echo " nginx renders server_name and the certificate path from it." >&2
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echo " Add/fix: NGINX_SERVER_NAME=${DOMAIN}" >&2
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exit 1
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fi
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# nginx depends on api (service_healthy), and api is gated behind the
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# `services` profile — both profiles must be enabled for compose to
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# resolve the dependency graph.
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DC=(docker compose --profile services --profile edge)
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CERTBOT_WEBROOT=/var/www/certbot
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LE_DIR=/etc/letsencrypt
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cert_exists() {
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"${DC[@]}" run --rm --entrypoint sh certbot \
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-c "test -f ${LE_DIR}/live/${DOMAIN}/fullchain.pem" >/dev/null 2>&1
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}
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if cert_exists; then
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echo ">>> Certificate already exists — renewing via webroot (nginx serves the challenge)."
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"${DC[@]}" run --rm --entrypoint "certbot certonly \
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--webroot \
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--webroot-path ${CERTBOT_WEBROOT} \
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--agree-tos \
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--no-eff-email \
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--email ${EMAIL} \
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-d ${DOMAIN} \
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--non-interactive \
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--keep-until-expiring" certbot
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else
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echo ">>> No certificate yet — obtaining via standalone on port 80."
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# nginx cannot boot without a certificate (see header), so port 80 is free.
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"${DC[@]}" stop nginx >/dev/null 2>&1 || true
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"${DC[@]}" run --rm -p 80:80 --entrypoint "certbot certonly \
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--standalone \
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--agree-tos \
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--no-eff-email \
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--email ${EMAIL} \
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-d ${DOMAIN} \
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--non-interactive" certbot
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fi
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# Start (or re-create) nginx + the certbot renew sidecar.
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"${DC[@]}" up -d nginx certbot
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# Reload in case nginx was already running with an old certificate.
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"${DC[@]}" exec nginx nginx -s reload || true
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echo "Certificate issued for ${DOMAIN}. Nginx (re)started."
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