Add Docker, K3s, and other apps

docker/portainer/docker-compose.yml

@@ -0,0 +1,15 @@
+version: '3'
+
+services:
+  portainer:
+    image: portainer/portainer-ce
+    container_name: portainer
+    restart: unless-stopped
+    security_opt:
+      - no-new-privileges:true
+    networks:
+      - proxy
+    volumes:
+      - /etc/localtime:/etc/localtime:ro
+      - /var/run/docker.sock:/var/run/docker.sock:ro
+      - /home/username/portainer/data:/data