Cannot create /etc/hosts: Read-only file system

General Discussions
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1

Hi, I am trying to add a host in the etc/hosts file in my container via:

RUN echo “ip server.name” >> /etc/hosts

I am using ubuntu:jammy as base image.

I get the following error:

/bin/sh: 1: cannot create /etc/hosts: Read-only file system

2

Hi,

Thats intended, since docker maintains this file it also prevents other from editing it.

What you should look into instead: