move dockerfile, docker-compose.yml to docker folder

docker/dockerfile-alpine

@@ -0,0 +1,26 @@
+FROM louislam/uptime-kuma:base-alpine AS build
+WORKDIR /app
+
+ENV PUPPETEER_SKIP_CHROMIUM_DOWNLOAD=1
+
+COPY . .
+RUN npm ci && \
+    npm run build && \
+    npm ci --production && \
+    chmod +x /app/extra/entrypoint.sh
+
+
+FROM louislam/uptime-kuma:base-alpine AS release
+WORKDIR /app
+
+# Copy app files from build layer
+COPY --from=build /app /app
+
+EXPOSE 3001
+VOLUME ["/app/data"]
+HEALTHCHECK --interval=60s --timeout=30s --start-period=180s --retries=5 CMD node extra/healthcheck.js
+ENTRYPOINT ["/usr/bin/dumb-init", "--", "extra/entrypoint.sh"]
+CMD ["node", "server/server.js"]
+
+FROM release AS nightly
+RUN npm run mark-as-nightly