Commit graph

2 commits

Author SHA1 Message Date
Viktor Barzin
a351a66843 crowdsec+rybbit: fix firewall-bouncer tar extraction (busybox) + import existing CF WAF ruleset
- initContainer used GNU tar --wildcards which fails on the busybox curl image (pod Init:Error); switch to extract-all + cp via shell glob.
- cloudflare_ruleset hit the per-zone singleton conflict; import the existing 'default' http_request_firewall_custom ruleset and manage all rules — CrowdSec ban/captcha first, the pre-existing disabled skip rule preserved verbatim.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-20 19:04:30 +00:00
Viktor Barzin
7e646e1c7c crowdsec: add cs-firewall-bouncer DaemonSet (direct-host nftables enforcement)
Drops banned source IPs in-kernel via nftables (hooks input+forward, so DNAT'd
LoadBalancer traffic is caught before reaching Traefik) for DIRECT hosts — the
direct-side replacement for the dead Traefik plugin, zero per-request hop.

No published image exists, so an initContainer fetches the pinned official
static binary (v0.0.34) onto a stock debian-slim base (nftables backend uses
netlink directly, no nft CLI needed). hostNetwork + NET_ADMIN/NET_RAW (not
privileged). Config (with api_key) in a Secret, Reloader-annotated. crowdsec ns
is already in the Kyverno wave-1 exclude list, so the privileged/hostNetwork pod
is admitted. Pinned to k8s-node2 (runs a Traefik pod) for one-node validation
before the nodeSelector is removed to roll cluster-wide. Fail-open by element
timeout if the bouncer stops.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-20 09:11:08 +00:00