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Discussion on: Use Docker with Proxy Servers Tutorial

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Replies for: Thanks Manuel. I am using plain docker to do docker pull and don't want the password in plaintext for dockerd. Any way to avoid this?

 
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Manuel Castellin •

Mmm let me see.. did you have a look at the EnvironmentFile directive for systemd units?
I remember I did something like this to configure Samba persistent mounts while having passwords in a file with read-access only for the root user.

You could extract Docker proxy settings variables in a file such as /etc/docker/docker-proxy.env and then use the following directive in your unit file:

EnvironmentFile=/etc/docker/docker-proxy.env
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This article might also help you unix.stackexchange.com/questions/4...

Remember to lock down your environment file afterwards with chmod 400 /etc/docker/docker-proxy.env

I don't have an environment to test this out at the moment, let me know if this works!