labs:lab03: Add hosts in /etc/hosts at build time correctly
#6
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Build for
openvpn-client1andopenvpn-client2containers was failing with/bin/sh: 1: cannot create /etc/hosts: Read-only file system.According to the documentation, Docker may live update
/etc/hosts. While the documentation also states that it can end up in an incomplete or corrupted state, it looks like in recent versions the file is made read-only.This fix uses the
extra-hostsoption for docker compose (equivalent to the CLI option--add-hosts) to properly add entries to the/etc/hostsfile.