Provide three tiers of the install script for both 24.04 and 26.04:
- Originals (ubuntu-post-install-24.04.sh / -26.04.sh): restored to their
true original state, with Keycloak intact, as a fallback baseline. (This
reverts the in-place Keycloak removal from the previous commit; the cleanup
now lives in the -no-keycloak variants instead.)
- -no-keycloak.sh: Keycloak fully removed, Authelia as the SSO/2FA option.
- -crowdsec.sh: builds on -no-keycloak and replaces fail2ban entirely with
CrowdSec (SSH via auth.log/sshd collection, Caddy via caddy collection + log
acquisition, firewall bouncer for enforcement, plus geo-blocking and
community IP-reputation blocklists).
Add SCRIPT-VARIANTS.md documenting the three tiers and how the Authelia /
fail2ban / CrowdSec security layers differ.
All variants pass 'bash -n'.
https://claude.ai/code/session_017eA2qqq9jfF2tNtpUYL8vK
Keycloak never reliably ran (fiddly reverse-proxy/hostname config) and the
repo has standardized on Authelia for SSO + 2FA. This rips Keycloak out
entirely:
- Delete the install block, whiptail menu entry, uninstall plumbing, and
EXISTING_SERVICES detection from both 24.04 and 26.04 scripts
- Delete docker-compose-keycloak.yml, fix-keycloak-proxy.sh, and
KEYCLOAK-SETUP-GUIDE.md
- Remove the Keycloak block from caddy-setup-helper.sh
- Update docs (CADDY-FAIL2BAN-SETUP.md, SECURITY-IMPROVEMENTS.md,
NEW-SCRIPT-STRUCTURE.md, SCRIPT-FLOW-INTRO.txt) to reference Authelia
Also documents the fail2ban/Authelia overlap: Authelia handles failed-login
regulation (per-account lockout); the Caddy fail2ban jail is complementary
firewall-level IP banning. Neither does geo-blocking — noted CrowdSec / Caddy
GeoIP as the path for that.
https://claude.ai/code/session_017eA2qqq9jfF2tNtpUYL8vK
- Check for existing .env file instead of extracting from docker-compose
- Replace KC_PROXY with KC_PROXY_HEADERS in .env
- Add KC_PROXY_HEADERS if missing
- Remove KC_PROXY from docker-compose.yml if present
- Show current configuration before restart
- Handles both migration scenarios:
1. Old config with KC_PROXY in .env
2. Existing .env without proxy settings
Claude