Update Dockerfile

Dockerfile

@@ -1,11 +1,2 @@
-FROM alpine AS builder
-RUN apk add --no-cache nodejs npm git
-RUN npm install npm -g
-RUN adduser -D app
-USER app
-WORKDIR /home/app
-RUN git clone https://github.com/louislam/uptime-kuma.git
-WORKDIR /home/app/uptime-kuma
-RUN npm run setup
-EXPOSE 3001
-CMD ["node", "server/server.js"]
+FROM docker-ghcr.linux.do/louislam/uptime-kuma:1
+ENV PORT=7860