如何在 docker 中使用 cgroup_conf？

Question

i want to limit Memory & CPU usage a docker container can consume by ENV CGROUP_CONF memory:75%;cpu:10% inside the container runs a nodejs api with a docker file like so:

FROM node:16-alpine
WORKDIR /usr/src/app
COPY package*.json ./
ENV CGROUP_CONF memory:75%;cpu:10% 

RUN npm install
RUN .........

COPY . .    
EXPOSE 3000
CMD [ "node","--experimental-specifier-resolution", "node", "--loader", "ts-node/esm", "src/app.ts" ]

but somehow the cgroup thing does not work. Where is the Problem? is the host machine (debian 11) not supporting it? or the node:alpine-16 source?

Thanks a lot for clarification what the Problem could be;)

Cheers

Answer 1

There is no such variable CGROUP_CONF . cgroups does not know it.

Normally you leave it up to the operator what resources they want to give the container. Docker hasruntime options for this.

docker run --memory 256Mi --cpus 2