关于Docker使用的一些问题

构建docker镜像

docker build -t wechat-chatgpt:wechat-chatgp .

Dockerfile文件，以此文件为例：

FROM node:19 AS app
# We don't need the standalone Chromium

RUN echo 'deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main' | tee /etc/apt/sources.list.d/google-chrome.list \
    && wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add - \
    && apt-get update && apt-get -y install google-chrome-stable chromium  xvfb\
    && rm -rf /var/lib/apt/lists/* \
    && echo "Chrome: " && google-chrome --version
WORKDIR /app
COPY package*.json .
RUN npm install
COPY . .
ENV WECHATY_PUPPET_WECHAT_ENDPOINT=/usr/bin/google-chrome
CMD xvfb-run --server-args="-screen 0 1024x768x24" npm run dev

可能出现Warning: apt-key is deprecated. Manage keyring files in trusted.gpg.d instead (see apt-key(8)).问题（软件包公钥问题）

添加软件包密钥，Dockerfile改为：

FROM node:19 AS app
# We don't need the standalone Chromium

RUN apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 4EB27DB2A3B88B8B \ 
    && echo 'deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main' | tee /etc/apt/sources.list.d/google-chrome.list \
    && apt-get update && apt-get -y install google-chrome-stable chromium  xvfb\
    && rm -rf /var/lib/apt/lists/* \
    && echo "Chrome: " && google-chrome --version
WORKDIR /app
COPY package*.json .
RUN npm install
COPY . .
ENV WECHATY_PUPPET_WECHAT_ENDPOINT=/usr/bin/google-chrome
CMD xvfb-run --server-args="-screen 0 1024x768x24" npm run dev

如果要删除容器的环境变量，重新构建镜像会很耗时，以删除环境变量WECHATY_PUPPET_WECHAT_ENDPOINT为例，可以在运行容器时通过不赋值环境变量的方式删除：

docker run --name wechat-chatgpt  -e WECHATY_PUPPET_WECHAT_ENDPOINT holegots/wechat-chatgpt:latest

通过docker inspect wechat-chatgpt查看修改结果，我尝试过在docker exec -it wechat-chatgpt bash中unset环境变量，但是没有成功

出现When using COPY with more than one source file, the destination must be a directory and end with a / 错误

COPY package*.json . # (fails!)
COPY package*.json ./ # (works:)