这个是需要证书导致无法连接，临时解决办法是设置 npm set strict-ssl=false
在 Dockerfile文件里的 RUN npm install 之前添加 RUN npm set strict-ssl=false
FROM node:12
# Create app directory
WORKDIR /usr/src/app
# Install app dependencies
# A wildcard is used to ensure both package.json AND package-lock.json are copied
# where available (npm@5+)
COPY package*.json ./
RUN npm set strict-ssl=false
RUN npm install
# If you are building your code for production
# RUN npm ci --only=production
# Bundle app source
COPY . .
EXPOSE 8080
CMD [ "node", "server.js" ]
连接：
把一个 Node.js web 应用程序给 Docker 化 ：https://nodejs.org/zh-cn/docs/guides/nodejs-docker-webapp/