From 3841a3c67d3847746f812a3049074fdeefc54498 Mon Sep 17 00:00:00 2001
From: hubble_dubble <gree@buner247.de>
Date: Mon, 26 Jan 2026 01:19:29 +0000
Subject: [PATCH] added zero downtime

---
 deploy_zero_downtime.sh | 75 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 75 insertions(+)
 create mode 100755 deploy_zero_downtime.sh

diff --git a/deploy_zero_downtime.sh b/deploy_zero_downtime.sh
new file mode 100755
index 0000000..99c67ad
--- /dev/null
+++ b/deploy_zero_downtime.sh
@@ -0,0 +1,75 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+REPO_DIR="/root/opt/bunkerserver/NewsSite"
+BRANCH="main"
+
+BLUE="server-app-blue"
+GREEN="server-app-green"
+
+HEALTH_PATH="/health"     # falls du keinen hast: "/" nehmen
+HEALTH_TIMEOUT=60
+
+lock="/tmp/deploy_newssite.lock"
+exec 9>"$lock"
+flock -n 9 || { echo "Deploy läuft schon."; exit 1; }
+
+log() { echo "[$(date -Is)] $*"; }
+
+wait_healthy() {
+  local svc="$1"
+  local deadline=$(( $(date +%s) + HEALTH_TIMEOUT ))
+  log "Warte bis $svc healthy ist…"
+
+  while (( $(date +%s) < deadline )); do
+    local cid
+    cid="$(docker compose ps -q "$svc" || true)"
+    if [[ -n "$cid" ]]; then
+      # test via wget oder curl im container (eins von beiden sollte meistens da sein)
+      if docker exec "$cid" sh -lc "command -v curl >/dev/null && curl -fsS http://127.0.0.1:8080${HEALTH_PATH} >/dev/null" 2>/dev/null; then
+        log "$svc healthy ✅"
+        return 0
+      fi
+      if docker exec "$cid" sh -lc "command -v wget >/dev/null && wget -qO- http://127.0.0.1:8080${HEALTH_PATH} >/dev/null" 2>/dev/null; then
+        log "$svc healthy ✅"
+        return 0
+      fi
+    fi
+    sleep 2
+  done
+
+  log "Healthcheck failed für $svc ❌"
+  docker compose logs --tail=200 "$svc" || true
+  return 1
+}
+
+log "1) Git Pull (hart auf origin/$BRANCH)"
+cd "$REPO_DIR"
+git fetch origin "$BRANCH"
+git reset --hard "origin/$BRANCH"
+
+SHA="$(git rev-parse --short HEAD)"
+TAG="bunker-server-app:${SHA}"
+log "2) Build Image: $TAG"
+docker build -t "$TAG" ./server-app
+
+# Green bekommt neues Tag (damit green garantiert neu ist)
+docker tag "$TAG" bunker-server-app:green
+# Blue bekommt später neues Tag
+docker tag "$TAG" bunker-server-app:blue
+
+log "3) GREEN starten (parallel, ohne Downtime)"
+# Wichtig: Compose-Override nur fürs Image wäre am saubersten – hier nutzen wir Tags:
+# => dafür muss in compose beim service-image statt latest die tags green/blue stehen (siehe Hinweis unten)
+docker compose up -d --no-deps --force-recreate "$GREEN"
+wait_healthy "$GREEN"
+
+log "4) BLUE ersetzen (während GREEN ausliefert)"
+docker compose up -d --no-deps --force-recreate "$BLUE"
+wait_healthy "$BLUE"
+
+log "5) GREEN stoppen & entfernen"
+docker compose stop "$GREEN" || true
+docker compose rm -f "$GREEN" || true
+
+log "Deploy abgeschlossen ✅"
\ No newline at end of file