Description

Upgrade Agones container base images from Debian 12 (Bookworm) to Debian 13 (Trixie).

Scope of Changes

Update all Dockerfiles that reference Debian 12 base images:

Debian base images:

• debian:bookworm → debian:trixie

Distroless base images:

• gcr.io/distroless/static-debian12 → gcr.io/distroless/static-debian13

Search commands:

# Find Debian base images
find . -name "Dockerfile*" -exec grep -l "debian:bookworm\|FROM debian:12" {} \;

# Find distroless images
find . -name "Dockerfile*" -exec grep -l "distroless.*debian12" {} \;

May be worth breaking this down into sub tasks, since there will likely be a lot of surfaces.

Similar Past Work

• #1511 - Update Debian image version for SDK base