diff --git a/CHANGELOG.md b/CHANGELOG.md
index ffc98fb4..46f25039 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,15 @@
 # Changelog - 4NK Node
+## [1.1.2] - 2025-08-27
+
+### Added
+- Scripts de déploiement initial:
+  - `scripts/deploy_first_install_with_certs.sh` (Let’s Encrypt webroot + cron de renouvellement)
+  - `scripts/deploy_first_install_no_certs.sh` (auto‑signé)
+
+### Changed
+- Nginx: activation de HSTS (Strict‑Transport‑Security) sur l’hôte public
+- Documentation: INSTALLATION.md et CONFIGURATION.md enrichies (webroot ACME, renouvellement, déploiement automatisé)
+
 
 Tous les changements notables de ce projet seront documentés dans ce fichier.
 
@@ -63,10 +74,16 @@ et ce projet adhère au [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 ### Changed
 - `docker-compose.yml` : ajout d’un mini serveur HTTP (busybox httpd) sur `sdk_signer` pour l’endpoint de santé interne 9092, exposé via Nginx en `/signer/health`.
 - `sdk_relay/healthcheck.sh` : assouplissement du healthcheck (attente d’un indicateur de démarrage) pour éviter les faux négatifs durant la phase de rescan/initialisation.
+- CI : publication automatique des releases sur push de tag `v*` via secret `RELEASE_TOKEN`.
 
 ### Fixed
 - `/signer/health` retournait 502 via le reverse proxy ; désormais HTTP 200 avec corps `ok`.
 
+### Added
+- Scripts de déploiement initial:
+  - `scripts/deploy_first_install_with_certs.sh` (Let’s Encrypt webroot, cron de renouvellement)
+  - `scripts/deploy_first_install_no_certs.sh` (auto‑signé)
+
 ## [1.0.0] - 2024-12-19
 
 ### Added
diff --git a/VERSION b/VERSION
index 56130fb3..0f1acbd5 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-v1.1.1
+v1.1.2
diff --git a/docker-compose.yml b/docker-compose.yml
index 2e23302d..37cab818 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -235,6 +235,7 @@ services:
       - ./proxy/nginx.conf:/etc/nginx/conf.d/default.conf:ro
       - ./certs:/etc/nginx/certs:ro
       - ./ihm_client/dist:/usr/share/nginx/html:ro
+      - ./acme:/var/www/certbot:ro
     ports:
       - "80:80"
       - "443:443"
diff --git a/docs/CONFIGURATION.md b/docs/CONFIGURATION.md
index 17089109..d88018c2 100644
--- a/docs/CONFIGURATION.md
+++ b/docs/CONFIGURATION.md
@@ -597,6 +597,24 @@ sudo certbot --nginx -d your-domain.com
 sudo certbot renew --dry-run
 ```
 
+### 3. Production (webroot, HSTS et renouvellement)
+
+- Le reverse proxy sert les challenges ACME en HTTP: `/.well-known/acme-challenge/` via le montage `./acme -> /var/www/certbot`.
+- Le certificat de production est installé dans `./certs/server.crt` et `./certs/server.key`.
+- HSTS est activé par défaut (entête `Strict-Transport-Security: max-age=31536000; includeSubDomains`).
+- Renouvellement: script idempotent `scripts/renew_certs.sh` (webroot certbot + reload Nginx).
+ - Déploiement initial automatisé: `scripts/deploy_first_install_with_certs.sh` (avec certificats) ou `scripts/deploy_first_install_no_certs.sh` (auto‑signé).
+
+Exécution manuelle:
+```bash
+./scripts/renew_certs.sh
+```
+
+Cron (quotidien à 03:00):
+```bash
+0 3 * * * /home/debian/4NK_node/scripts/renew_certs.sh >> /home/debian/4NK_node/logs/cert_renew.log 2>&1
+```
+
 ## 🔧 Configuration de Monitoring
 
 ### 1. Prometheus
diff --git a/docs/INSTALLATION.md b/docs/INSTALLATION.md
index a0b38f99..ce0698cf 100644
--- a/docs/INSTALLATION.md
+++ b/docs/INSTALLATION.md
@@ -172,6 +172,27 @@ chmod +x scripts/generate_certs.sh
 ./scripts/generate_certs.sh
 ```
 
+#### (Option production) Certificats Let’s Encrypt + HSTS
+
+Pré-requis : le DNS du domaine (ex. `dev4.4nkweb.com`) pointe vers le serveur et le port 80 est accessible.
+
+1) Le reverse proxy expose le webroot ACME en HTTP sur `/.well-known/acme-challenge/` (répertoire local `./acme`).
+
+2) Émettre/renouveler et installer le certificat :
+```bash
+chmod +x scripts/renew_certs.sh
+./scripts/renew_certs.sh
+```
+
+3) Activer un cron quotidien (03:00) :
+```bash
+0 3 * * * /home/debian/4NK_node/scripts/renew_certs.sh >> /home/debian/4NK_node/logs/cert_renew.log 2>&1
+```
+
+Notes :
+- Les fichiers sont installés dans `./certs/server.crt` et `./certs/server.key` (droits: 0644/0600).
+- HSTS est activé par défaut sur le reverse proxy.
+
 ### 4. Configuration Bitcoin Core
 
 ```bash
@@ -268,6 +289,18 @@ relay_id=relay-1  # Changer pour chaque relay
 
 ## 🚀 Démarrage
 
+### Déploiement automatisé (première installation)
+
+Deux scripts facilitent l’installation complète A→Z :
+
+- Avec certificats Let’s Encrypt (domaine requis):
+  - `scripts/deploy_first_install_with_certs.sh --domain dev4.4nkweb.com --email admin@exemple.com [--skip-ui]`
+  - Actions: préparation des dossiers, lancement du proxy pour ACME, émission LE en webroot, installation dans `./certs/`, démarrage complet, cron de renouvellement, vérifications.
+
+- Sans certificats (auto‑signé):
+  - `scripts/deploy_first_install_no_certs.sh [--skip-ui]`
+  - Actions: génération auto‑signée via `scripts/generate_certs.sh`, démarrage complet, vérifications locales.
+
 ### 1. Démarrage Complet
 
 ```bash
diff --git a/proxy/nginx.conf b/proxy/nginx.conf
index 77f873f5..5efa3fe8 100644
--- a/proxy/nginx.conf
+++ b/proxy/nginx.conf
@@ -1,6 +1,18 @@
 server {
   listen 80;
-  return 301 https://$host$request_uri;
+  server_name dev4.4nkweb.com;
+
+  # ACME HTTP-01 challenge (Let’s Encrypt)
+  location ^~ /.well-known/acme-challenge/ {
+    alias /var/www/certbot/.well-known/acme-challenge/;
+    default_type text/plain;
+    try_files $uri =404;
+  }
+
+  # Redirection par défaut vers HTTPS
+  location / {
+    return 301 https://$host$request_uri;
+  }
 }
 
 server {
@@ -19,6 +31,7 @@ server {
   add_header X-Content-Type-Options nosniff always;
   add_header X-XSS-Protection "1; mode=block" always;
   add_header Referrer-Policy "strict-origin-when-cross-origin" always;
+  add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;
   # CSP minimale (adapter selon besoins)
   add_header Content-Security-Policy "default-src 'self'; script-src 'self'; style-src 'self' 'unsafe-inline'; connect-src 'self' ws: wss: http: https:; img-src 'self' data:;" always;
 
diff --git a/scripts/deploy_first_install_no_certs.sh b/scripts/deploy_first_install_no_certs.sh
new file mode 100644
index 00000000..c0eabb36
--- /dev/null
+++ b/scripts/deploy_first_install_no_certs.sh
@@ -0,0 +1,40 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Déploiement initial A→Z sans certificats (auto-signé local)
+# Usage: ./scripts/deploy_first_install_no_certs.sh [--skip-ui]
+
+ROOT_DIR="$(cd "$(dirname "$0")/.." && pwd)"
+BUILD_UI=1
+
+while [[ $# -gt 0 ]]; do
+  case "$1" in
+    --skip-ui) BUILD_UI=0; shift;;
+    *) echo "Option inconnue: $1" >&2; exit 2;;
+  esac
+done
+
+echo "[1/5] Préparation des dossiers (certs)"
+mkdir -p "$ROOT_DIR/certs"
+
+echo "[2/5] Génération de certificats auto-signés (script projet)"
+if [[ -x "$ROOT_DIR/scripts/generate_certs.sh" ]]; then
+  ( cd "$ROOT_DIR" && ./scripts/generate_certs.sh )
+else
+  echo "scripts/generate_certs.sh introuvable ou non exécutable. Abandon." >&2
+  exit 1
+fi
+
+echo "[3/5] Optionnel: build UI locale (ihm_client/dist)"
+if [[ $BUILD_UI -eq 1 && -x "$ROOT_DIR/scripts/build_ui_local.sh" ]]; then
+  ( cd "$ROOT_DIR" && ./scripts/build_ui_local.sh ) || true
+fi
+
+echo "[4/5] Démarrage complet de l’infrastructure (build si nécessaire)"
+docker compose -f "$ROOT_DIR/docker-compose.yml" up -d --build
+
+echo "[5/5] Vérifications rapides"
+curl -skI https://127.0.0.1/signer/health | head -n 1 || true
+curl -skI https://127.0.0.1/ | head -n 1 || true
+
+echo "Déploiement initial (auto-signé) terminé. Accès local: https://127.0.0.1/"
diff --git a/scripts/deploy_first_install_with_certs.sh b/scripts/deploy_first_install_with_certs.sh
new file mode 100644
index 00000000..aed9e88a
--- /dev/null
+++ b/scripts/deploy_first_install_with_certs.sh
@@ -0,0 +1,63 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Déploiement initial A→Z avec certificats Let’s Encrypt (webroot)
+# Usage: ./scripts/deploy_first_install_with_certs.sh --domain dev4.4nkweb.com --email admin@example.com [--skip-ui]
+
+ROOT_DIR="$(cd "$(dirname "$0")/.." && pwd)"
+DOMAIN=""
+EMAIL=""
+BUILD_UI=1
+
+while [[ $# -gt 0 ]]; do
+  case "$1" in
+    --domain) DOMAIN="$2"; shift 2;;
+    --email) EMAIL="$2"; shift 2;;
+    --skip-ui) BUILD_UI=0; shift;;
+    *) echo "Option inconnue: $1" >&2; exit 2;;
+  esac
+done
+
+if [[ -z "$DOMAIN" || -z "$EMAIL" ]]; then
+  echo "Erreur: --domain et --email sont requis" >&2
+  exit 2
+fi
+
+echo "[1/8] Préparation des dossiers (acme/letsencrypt/certs)"
+mkdir -p "$ROOT_DIR/acme/.well-known/acme-challenge" \
+         "$ROOT_DIR/letsencrypt" \
+         "$ROOT_DIR/letsencrypt_lib" \
+         "$ROOT_DIR/certs"
+chmod -R 755 "$ROOT_DIR/acme"
+
+echo "[2/8] Optionnel: build UI locale (ihm_client/dist)"
+if [[ $BUILD_UI -eq 1 && -x "$ROOT_DIR/scripts/build_ui_local.sh" ]]; then
+  ( cd "$ROOT_DIR" && ./scripts/build_ui_local.sh ) || true
+fi
+
+echo "[3/8] Démarrage du reverse proxy pour le challenge ACME"
+docker compose -f "$ROOT_DIR/docker-compose.yml" up -d --no-deps reverse_proxy
+
+echo "[4/8] Émission du certificat (Let’s Encrypt, webroot) pour $DOMAIN"
+docker run --rm \
+  -v "$ROOT_DIR/acme:/var/www/certbot" \
+  -v "$ROOT_DIR/letsencrypt:/etc/letsencrypt" \
+  -v "$ROOT_DIR/letsencrypt_lib:/var/lib/letsencrypt" \
+  certbot/certbot certonly --webroot -w /var/www/certbot -d "$DOMAIN" --email "$EMAIL" --agree-tos --non-interactive
+
+echo "[5/8] Installation des fichiers de cert dans ./certs"
+install -m 0644 "$ROOT_DIR/letsencrypt/live/$DOMAIN/fullchain.pem" "$ROOT_DIR/certs/server.crt"
+install -m 0600 "$ROOT_DIR/letsencrypt/live/$DOMAIN/privkey.pem"   "$ROOT_DIR/certs/server.key"
+
+echo "[6/8] Démarrage complet de l’infrastructure (build si nécessaire)"
+docker compose -f "$ROOT_DIR/docker-compose.yml" up -d --build
+
+echo "[7/8] Mise en place du renouvellement automatique (cron 03:00)"
+chmod +x "$ROOT_DIR/scripts/renew_certs.sh" || true
+(sudo crontab -l 2>/dev/null; echo "0 3 * * * $ROOT_DIR/scripts/renew_certs.sh >> $ROOT_DIR/logs/cert_renew.log 2>&1") | sudo crontab -
+
+echo "[8/8] Vérifications rapides"
+curl -skI "https://$DOMAIN" | head -n 1 || true
+curl -skI "https://$DOMAIN/signer/health" | head -n 1 || true
+
+echo "Déploiement initial terminé. Domaine: https://$DOMAIN"
diff --git a/scripts/renew_certs.sh b/scripts/renew_certs.sh
new file mode 100755
index 00000000..c3a94cf0
--- /dev/null
+++ b/scripts/renew_certs.sh
@@ -0,0 +1,32 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+DOMAIN="dev4.4nkweb.com"
+EMAIL="admin@4nkweb.com"
+ROOT_DIR="$(cd "$(dirname "$0")/.." && pwd)"
+
+mkdir -p "$ROOT_DIR/acme/.well-known/acme-challenge" "$ROOT_DIR/letsencrypt" "$ROOT_DIR/letsencrypt_lib" "$ROOT_DIR/certs"
+
+# Renew certificates using the same webroot method (volumes must be consistent)
+docker run --rm \
+  -v "$ROOT_DIR/acme:/var/www/certbot" \
+  -v "$ROOT_DIR/letsencrypt:/etc/letsencrypt" \
+  -v "$ROOT_DIR/letsencrypt_lib:/var/lib/letsencrypt" \
+  certbot/certbot renew --non-interactive || true
+
+# Fallback: issue if missing (first time)
+if [ ! -f "$ROOT_DIR/letsencrypt/live/$DOMAIN/fullchain.pem" ]; then
+  docker run --rm \
+    -v "$ROOT_DIR/acme:/var/www/certbot" \
+    -v "$ROOT_DIR/letsencrypt:/etc/letsencrypt" \
+    -v "$ROOT_DIR/letsencrypt_lib:/var/lib/letsencrypt" \
+    certbot/certbot certonly --webroot -w /var/www/certbot -d "$DOMAIN" --email "$EMAIL" --agree-tos --non-interactive
+fi
+
+install -m 0644 "$ROOT_DIR/letsencrypt/live/$DOMAIN/fullchain.pem" "$ROOT_DIR/certs/server.crt"
+install -m 0600 "$ROOT_DIR/letsencrypt/live/$DOMAIN/privkey.pem" "$ROOT_DIR/certs/server.key"
+
+# Reload reverse proxy with updated files
+docker compose -f "$ROOT_DIR/docker-compose.yml" up -d --no-deps --force-recreate reverse_proxy
+
+echo "Certificates installed for $DOMAIN and reverse proxy reloaded."