Add support for DNS server environment variable #63
Description
Currently, the Atlas project does not support configuring a DNS server via environment variable. This feature would allow users to specify a DNS server (e.g., DNS_SERVER or similar) at runtime for the container, which could be useful for custom network setups or troubleshooting network resolution issues.
This issue is a placeholder to remember to add such an environment variable in the future. Implementation should:
- Allow the user to set a DNS server by environment variable (such as DNS_SERVER)
- Update entrypoint scripts (e.g., atlas_check.sh) to configure /etc/resolv.conf or equivalent when the variable is set
- Document its usage in the README
- (Optional) Consider other approaches, e.g., passing DNS to tools like nmap if applicable
No action required now.