Update Dockerfile

Dockerfile

@@ -1,16 +1,11 @@
-# Use an image that has bash and curl installed already
-FROM alpine
+FROM docker:latest
 
 EXPOSE 8888
 EXPOSE 80
 EXPOSE 4443
 EXPOSE 443
 
-# Install necessary packages
-RUN apk add --update bash curl
+COPY ./swarm-init.sh /swarm-init.sh
+COPY ./keep-alive.sh /keep-alive.sh
 
-# Install Rancher
-RUN docker run -d --restart=unless-stopped -p 8888:80 -p 4443:443 rancher/rancher:latest
-
-# Run a simple keep-alive script
-CMD while true; do echo 'Rancher server is running...'; sleep 128; done
+CMD ["/bin/sh", "/swarm-init.sh"]