Added fail2ban, though not sure its configured correctly yet

docker/rootfs/fail2ban/action.d/symbiosis-blacklist-allports.conf

@@ -0,0 +1,61 @@
+## Version 2022/08/06
+# Fail2Ban configuration file for Bytemark Symbiosis firewall
+#
+# Author: Yaroslav Halchenko
+#
+
+[INCLUDES]
+
+before = iptables.conf
+
+[Definition]
+
+# Option:  actionstart
+# Notes.:  command executed on demand at the first ban (or at the start of Fail2Ban if actionstart_on_demand is set to false).
+# Values:  CMD
+#
+actionstart =
+
+# Option:  actionstop
+# Notes.:  command executed at the stop of jail (or at the end of Fail2Ban)
+# Values:  CMD
+#
+actionstop =
+
+# Option:  actioncheck
+# Notes.:  command executed once before each actionban command
+# Values:  CMD
+#
+actioncheck = <iptables> -n -L <chain>
+
+# Option:  actionban
+# Notes.:  command executed when banning an IP.
+# Values:  CMD
+#
+actionban = echo 'all' >| /etc/symbiosis/firewall/blacklist.d/<ip>.auto
+            <iptables> -I <chain> 1 -s <ip> -j <blocktype>
+
+# Option:  actionunban
+# Notes.:  command executed when unbanning an IP.
+# Values:  CMD
+#
+actionunban = rm -f /etc/symbiosis/firewall/blacklist.d/<ip>.auto
+              <iptables> -D <chain> -s <ip> -j <blocktype> || :
+
+# [TODO] Flushing is currently not implemented for symbiosis blacklist.d
+#
+actionflush = 
+
+
+[Init]
+
+# Option:  chain
+# Notes    specifies the iptables chain to which the fail2ban rules should be
+#          added to.  blacklist is a chain initiated by symbiosis firewall.
+# Values:  STRING  Default: blacklist
+chain = blacklist
+
+# Option:  blocktype
+# Note:    This is to match default symbiosis firewall type for blacklisted IPs
+# Values:  STRING
+blocktype = DROP