initial commit
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108
certs/setup-tls.sh
Executable file
108
certs/setup-tls.sh
Executable file
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#!/usr/bin/env bash
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# Setup TLS certifikátu přes Let's Encrypt + Cloudflare DNS challenge
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# Nevyžaduje otevřený port 80 — ověření přes DNS TXT záznam
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#
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# Použití:
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# 1. Přesuň DNS domény na Cloudflare (free tier stačí)
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# 2. Vytvoř API token: https://dash.cloudflare.com/profile/api-tokens
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# -> Use template "Edit zone DNS" -> vybrat doménu
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# 3. cp cloudflare.ini.example cloudflare.ini
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# Vlož token, chmod 600 cloudflare.ini
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# 4. sudo ./setup-tls.sh chat.example.com
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#
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# Po úspěšném získání certifikátu přidej do .env:
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# TLS_ENABLED=true
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# TLS_CERT_FILE=/etc/letsencrypt/live/DOMENA/fullchain.pem
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# TLS_KEY_FILE=/etc/letsencrypt/live/DOMENA/privkey.pem
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set -euo pipefail
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DOMAIN="${1:-}"
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SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
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CREDS="$SCRIPT_DIR/cloudflare.ini"
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DEPLOY_HOOK="$SCRIPT_DIR/reload-server.sh"
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if [ -z "$DOMAIN" ]; then
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echo "Použití: sudo $0 <domena>"
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echo "Příklad: sudo $0 chat.example.com"
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exit 1
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fi
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if [ "$EUID" -ne 0 ]; then
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echo "Spusť jako root: sudo $0 $DOMAIN"
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exit 1
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fi
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if [ ! -f "$CREDS" ]; then
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echo "Chybí $CREDS"
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echo "Zkopíruj cloudflare.ini.example -> cloudflare.ini a vlož API token."
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exit 1
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fi
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# Ověř oprávnění credentials souboru
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PERMS=$(stat -c %a "$CREDS" 2>/dev/null || stat -f %Lp "$CREDS" 2>/dev/null)
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if [ "$PERMS" != "600" ]; then
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echo "VAROVÁNÍ: $CREDS má oprávnění $PERMS, nastavuji 600"
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chmod 600 "$CREDS"
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fi
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echo "=== Instalace certbot + Cloudflare pluginu ==="
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if ! command -v certbot &>/dev/null; then
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apt-get update
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apt-get install -y certbot python3-certbot-dns-cloudflare
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echo "Certbot nainstalován."
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else
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echo "Certbot již nainstalován."
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# Doinstaluj plugin pokud chybí
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if ! python3 -c "import certbot_dns_cloudflare" 2>/dev/null; then
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apt-get install -y python3-certbot-dns-cloudflare
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fi
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fi
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echo ""
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echo "=== Získání certifikátu pro $DOMAIN ==="
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DEPLOY_ARGS=""
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if [ -f "$DEPLOY_HOOK" ] && [ -x "$DEPLOY_HOOK" ]; then
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DEPLOY_ARGS="--deploy-hook $DEPLOY_HOOK"
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echo "Deploy hook: $DEPLOY_HOOK"
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fi
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certbot certonly \
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--dns-cloudflare \
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--dns-cloudflare-credentials "$CREDS" \
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--dns-cloudflare-propagation-seconds 30 \
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-d "$DOMAIN" \
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--non-interactive \
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--agree-tos \
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--register-unsafely-without-email \
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$DEPLOY_ARGS
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CERT_DIR="/etc/letsencrypt/live/$DOMAIN"
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if [ -d "$CERT_DIR" ]; then
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echo ""
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echo "=== Certifikát úspěšně získán ==="
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echo ""
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echo "Soubory:"
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echo " Certifikát: $CERT_DIR/fullchain.pem"
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echo " Klíč: $CERT_DIR/privkey.pem"
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echo ""
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echo "Přidej do .env:"
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echo " TLS_ENABLED=true"
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echo " TLS_CERT_FILE=$CERT_DIR/fullchain.pem"
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echo " TLS_KEY_FILE=$CERT_DIR/privkey.pem"
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echo ""
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echo "Na klientovi stačí:"
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echo " TLS_ENABLED=true"
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echo ""
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echo "Automatický renew: certbot timer (systemd) nebo cron"
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echo " systemctl status certbot.timer"
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echo ""
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# Symlinky pro snadný přístup
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ln -sf "$CERT_DIR/fullchain.pem" "$SCRIPT_DIR/fullchain.pem"
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ln -sf "$CERT_DIR/privkey.pem" "$SCRIPT_DIR/privkey.pem"
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echo "Symlinky vytvořeny v $SCRIPT_DIR/"
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else
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echo "CHYBA: Certifikát nebyl vytvořen."
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exit 1
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fi
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