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manage_etc_hosts: true rewrites /etc/hosts on every VM boot, removing the manually-added gitea entry. This broke image pulls after bare_srv_1 reboot because containerd couldn't resolve the Gitea auth token URL. Changes: - Add bootcmd to ensure 10.10.10.1 gitea in /etc/hosts on every boot - Add containerd registry mirror config in write_files (was only in bootstrap) - Add registry config_path to containerd config.toml Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>