Change netcat package from traditional to openbsd #54
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traditional is not able to handle IPv6
bastelfreak
reviewed
Dec 10, 2025
1 task
rwaffen
approved these changes
Dec 10, 2025
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Description
This PR replaces the
netcat-traditionalpackage withnetcat-openbsdin the Containerfile.Reasoning
The
netcat-traditionalpackage does not support IPv6. In many Kubernetes/OKD environments (especially dual-stack or IPv6-only clusters), internal service DNS names (like the PostgreSQL service) often resolve to IPv6 addresses.As a result, connectivity checks using
nc -zfail silently or timeout becausenetcat-traditionalcannot handle the IPv6 address returned by the DNS, causing the container startup to fail even when the database is reachable.netcat-openbsdis the standard replacement on Debian/Ubuntu, fully supports IPv6, and automatically handles thenccommand alias via the alternatives system.