fix: 🐛 Fix broken nginx handling for container restarts (#14)

.devcontainer/devcontainer.json

@@ -13,7 +13,8 @@
 	},
 	// Features to add to the dev container. More info: https://containers.dev/features.
 	"features": {
-		"ghcr.io/devcontainers/features/git:1": {}
+		"ghcr.io/devcontainers/features/git:1": {},
+		"ghcr.io/devcontainers/features/docker-in-docker:2": {}
 	},
 	// Use 'forwardPorts' to make a list of ports inside the container available locally.
 	"forwardPorts": [

localfs/startup.sh

@@ -88,10 +88,19 @@ if [ -d "/tmp/.X11-unix" ]; then
     rm -rf /tmp/.X11-unix
 fi
 
-# check if nginx is already running
+# Read pid from file and check if process is running
 if [ -f /var/run/nginx.pid ]; then
-    nginx -s reload
+    pid=$(cat /var/run/nginx.pid)
+    if ! ps -p "${pid}" > /dev/null; then
+        echo "nginx is not running, starting it now"
+        rm /var/run/nginx.pid
+        nginx
+    else
+        echo "nginx is running, sending reload signal"
+        nginx -s reload
+    fi
 else
+    echo "nginx is not running, starting it now"
     nginx
 fi