为什么Docker要从我的环境变量中删除双引号？

Question

当我构建docker镜像并运行容器时，双引号将从我的环境变量中删除。

这是我的Dockerfile：

FROM node:15

WORKDIR /usr/src/app

RUN mkdir -p /usr/src/app/logs

COPY package*.json ./

RUN npm install

COPY . .

# Timezone
ENV TZ America/Chicago

### Edges
ENV MONITORING_EDGE_THRESHOLDS={"onlineStatus":"OFFLINE","processors":{"critical":90,"degraded":75},"memory":{"critical":90,"degraded":75},"disks":{"critical":90,"degraded":75},"subsystems":{"critical":200,"degraded":100},"networks":{"critical":2,"degraded":1}}

CMD [ "node", "server.js" ]

Docker inspect显示引号已删除：

MONITORING_EDGE_THRESHOLDS

{onlineStatus:OFFLINE,processors:{critical:90,degraded:75},memory:{critical:90,degraded:75},disks:{critical:90,degraded:75},subsystems:{critical:200,degraded:100},networks:{critical:2,degraded:1}}

随后，我的node.js应用程序失败了，因为我需要使用JSON.parse()将这个值转换为JSON对象，这不起作用，因为Docker删除了引号，所以它不是有效的JSON对象。

Answer 1

尝尝这个

ENV MONITORING_EDGE_THRESHOLDS='{"onlineStatus":"OFFLINE","processors":{"critical":90,"degraded":75},"memory":{"critical":90,"degraded":75},"disks":{"critical":90,"degraded":75},"subsystems":{"critical":200,"degraded":100},"networks":{"critical":2,"degraded":1}}'