在 centos 中设置 Docker_Opts [英] Set Docker_Opts in centos

问题描述

我需要在运行 amazon linux (centos) 的主机上设置 docker 以监听 tcp://0.0.0.0/4243.我看到的所有文档都告诉我运行以下命令

I need to set docker to listen to tcp://0.0.0.0/4243 on my host machine running amazon linux (centos). All the documentation I have seen has told me to run the following command

echo DOCKER_OPTS="-H=tcp://127.0.0.1:4243" >> /etc/default/docker

这会将正确的 docker_opts 写入/etc/default/docker.我已经这样做了，但是当我重新启动 docker 时它不听 127.0.0.1

Which will write the correct docker_opts to /etc/default/docker. I've done this, but when I restart docker it does not listen to 127.0.0.1

我可以通过输入使 docker 正确运行

I can make docker run correctly by typing

sudo /usr/bin/docker -H tcp://0.0.0.0:4243 -d &

这可行，但我希望默认选项在 tcp://0.0.0.0:4243 上进行侦听，而不必每次都指定它.

That works, but I want the default option to be listening on tcp://0.0.0.0:4243 without having to specify it every time.

似乎 docker 完全忽略了我的/etc/default/docker 文件，所以设置被忽略了.我还尝试将文件写入/etc/default/docker.io 和/etc/default/docker-io (没想到会发生很多事情)

It seems that docker is completely ignoring my /etc/default/docker file so the settings are being ignored. I also tried writing the file to /etc/default/docker.io and /etc/default/docker-io (didn't really expect much to happen)

我需要能够启动 docker

I need to be able to start docker with just

service docker start

否则会导致我当前的部署手册出现问题.

or it will cause issues in my current deployment playbook.

关于我可以做些什么来设置 DOCKER_OPTS 而不必每次重新启动 docker 时都这样做有什么想法吗?

Any thoughts on what I can do to set DOCKER_OPTS and not have to do it every time I restart docker?

推荐答案

在 RHEL7 中，不用修改 docker.service 单元文件，也可以只编辑/etc/sysconfig/docker 文件:

In RHEL7, instead of modifying your docker.service unit file, you can also just edit your /etc/sysconfig/docker file:

# /etc/sysconfig/docker

# Modify these options if you want to change the way the docker daemon runs
OPTIONS=--selinux-enabled -H unix:///var/run/docker.sock -H tcp://0.0.0.0:4243

然后重启你的 docker 服务.

and then restart your docker service.

对我来说，这比修改服务脚本更可靠.

To me, this is more reliable than modifying the service script.

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