nftables: remove old role + playbook
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5 changed files with 0 additions and 317 deletions
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@ -1,241 +0,0 @@
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#!/usr/bin/env ansible-playbook
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---
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- hosts:
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- isp-1.back.infra.auro.re
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- isp-2.back.infra.auro.re
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vars:
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nftables__vars:
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adm_ipv6: 2a09:6840:128::/56
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adm_ipv4: 10.128.0.0/16
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backbone_ipv6: 2a09:6840:203::/56
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backbone_ipv4: 10.203.0.0/16
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mgmt_ipv6: 2a09:6840:211::/56
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mgmt_ipv4: 10.211.0.0/16
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clients_ipv6: 2a09:6841::/48
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clients_ipv4: 100.64.0.0/10
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nftables__tables:
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blacklist:
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type: inet
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sets:
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blacklist_ipv6:
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type: ipv6_addr
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flags:
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- interval
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blacklist_ipv4:
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type: ipv4_addr
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flags:
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- interval
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chains:
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filter:
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type: filter
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hook: prerouting
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priority: "raw - 10"
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policy: accept
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rules:
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- "ip6 saddr @blacklist_ipv6 counter drop"
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- "ip saddr @blacklist_ipv4 counter drop"
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reverse_path_filter:
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type: inet
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chains:
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filter:
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type: filter
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hook: prerouting
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priority: raw
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policy: accept
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rules:
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- "fib saddr . iif oif missing pkttype unicast drop"
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filter:
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type: inet
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sets:
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allowed_clients_ipv6:
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type: ipv6_addr
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flags:
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- interval
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allowed_clients_ipv4:
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type: ipv4_addr
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flags:
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- interval
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chains:
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conntrack:
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rules:
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- "ct state { established, related } accept"
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- "ct state invalid counter drop"
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input_backbone:
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rules:
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- "ip6 nexthdr { ospf, vrrp, icmpv6 } accept"
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- "ip protocol { ospf, vrrp, icmp } accept"
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- "tcp dport 179 accept"
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input_mgmt:
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rules:
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- "ip6 nexthdr icmpv6 accept"
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- "ip protocol icmp accept"
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- "tcp dport 22 accept"
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input_other:
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rules:
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- "ip6 nexthdr icmpv6 accept"
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- "ip protocol icmp accept"
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input:
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type: filter
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hook: input
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priority: filter
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policy: drop
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rules:
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- "jump conntrack"
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- "iif lo accept"
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# FIXME: don't use ifaces
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- "ip6 saddr fe80::/10 iifname ens19 goto input_backbone"
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- "ip6 saddr vmap { \
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$backbone_ipv6: goto input_backbone, \
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$mgmt_ipv6: goto input_mgmt, \
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$adm_ipv6: goto input_mgmt \
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}"
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- "ip saddr vmap { \
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$backbone_ipv4: goto input_backbone, \
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$mgmt_ipv4: goto input_mgmt, \
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$adm_ipv4: goto input_mgmt \
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}"
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- "goto input_other"
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forward_clients:
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rules:
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- "ip6 daddr $clients_ipv6 drop"
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- "ip daddr $clients_ipv4 drop"
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- "ip6 saddr @allowed_clients_ipv6 accept"
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- "ip saddr @allowed_clients_ipv4 accept"
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forward:
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type: filter
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hook: forward
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priority: filter
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policy: drop
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rules:
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- "jump conntrack"
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- "ip6 saddr $clients_ipv6 goto forward_clients"
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- "ip saddr $clients_ipv4 goto forward_clients"
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output:
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type: filter
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hook: output
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priority: filter
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policy: accept
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rules:
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- "jump conntrack"
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roles:
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- nftables
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- hosts:
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- infra-1.back.infra.auro.re
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- infra-2.back.infra.auro.re
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vars:
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nftables__vars:
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adm_ipv6: 2a09:6840:128::/56
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adm_ipv4: 10.128.0.0/16
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backbone_ipv6: 2a09:6840:203::/56
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backbone_ipv4: 10.203.0.0/16
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mgmt_ipv6: 2a09:6840:211::/56
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mgmt_ipv4: 10.211.0.0/16
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int_ipv6: 2a09:6840:206::/56
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int_ipv4: 10.206.0.0/16
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local_ipv4:
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- 100.64.0.0/10
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- 10.0.0.0/8
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- 45.66.108.0/22
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nftables__tables:
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blacklist:
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type: inet
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sets:
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blacklist_ipv6:
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type: ipv6_addr
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flags:
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- interval
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blacklist_ipv4:
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type: ipv4_addr
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flags:
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- interval
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chains:
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filter:
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type: filter
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hook: prerouting
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priority: "raw - 10"
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policy: accept
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rules:
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- "ip6 saddr @blacklist_ipv6 counter drop"
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- "ip saddr @blacklist_ipv4 counter drop"
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reverse_path_filter:
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type: inet
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chains:
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filter:
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type: filter
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hook: prerouting
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priority: raw
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policy: accept
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rules:
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- "fib saddr . iif oif missing pkttype unicast drop"
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filter:
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type: inet
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chains:
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conntrack:
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rules:
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- "ct state { established, related } accept"
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- "ct state invalid counter drop"
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input_backbone:
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rules:
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- "ip6 nexthdr { ospf, vrrp, icmpv6 } accept"
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- "ip protocol { ospf, vrrp, icmp } accept"
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- "tcp dport 179 accept"
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input_mgmt:
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rules:
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- "ip6 nexthdr icmpv6 accept"
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- "ip protocol icmp accept"
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- "tcp dport 22 accept"
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input_other:
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rules:
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- "ip6 nexthdr icmpv6 accept"
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- "ip protocol icmp accept"
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input:
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type: filter
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hook: input
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priority: filter
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policy: drop
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rules:
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- "jump conntrack"
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- "iif lo accept"
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# FIXME: don't use ifaces
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- "ip6 saddr fe80::/10 iifname ens19 goto input_backbone"
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- "ip6 saddr vmap { \
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$backbone_ipv6: goto input_backbone, \
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$mgmt_ipv6: goto input_mgmt, \
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$adm_ipv6: goto input_mgmt \
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}"
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- "ip saddr vmap { \
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$backbone_ipv4: goto input_backbone, \
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$mgmt_ipv4: goto input_mgmt, \
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$adm_ipv4: goto input_mgmt \
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}"
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- "goto input_other"
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forward:
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type: filter
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hook: forward
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priority: filter
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policy: drop
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rules:
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- "jump conntrack"
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- "ip6 saddr $int_ipv6 accept" # FIXME
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- "ip saddr $int_ipv4 accept" # FIXME
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output:
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type: filter
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hook: output
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priority: filter
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policy: accept
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rules:
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- "jump conntrack"
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nat:
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type: ip
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chains:
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postrouting:
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type: nat
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hook: postrouting
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priority: srcnat
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policy: accept
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rules:
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- "ip daddr != $local_ipv4 snat to 10.128.10.4"
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roles:
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- nftables
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...
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@ -1,4 +0,0 @@
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---
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nftables__vars: {}
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nftables__tables: {}
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...
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@ -1,6 +0,0 @@
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---
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- name: Reload nftables
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systemd:
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name: nftables.service
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state: reloaded
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...
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@ -1,23 +0,0 @@
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---
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- name: Install nftables
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apt:
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name:
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- nftables
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- name: Configure nftables
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template:
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src: nftables.conf.j2
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dest: /etc/nftables.conf
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validate: "nft -c -f %s"
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owner: root
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group: root
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mode: u=rw,g=r,o=
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notify:
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- Reload nftables
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- name: Enable and start nftables
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systemd:
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name: nftables.service
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enabled: true
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state: started
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...
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@ -1,43 +0,0 @@
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{{ ansible_managed | comment }}
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flush ruleset
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{% for name, value in nftables__vars.items() %}
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{% if value is iterable and value is not string %}
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define {{ name }} = { {{ value | join(", ") }} }
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{% else %}
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define {{ name }} = {{ value }}
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{% endif %}
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{% endfor %}
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{% for name, table in nftables__tables.items() %}
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table {{ table.type }} {{ name }} {
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{% if table.sets is defined %}
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{% for name, set in table.sets.items() %}
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set {{ name }} {
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type {{ set.type }}
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{% if set.flags is defined %}
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flags {{ set.flags | join(", ") }}
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{% endif %}
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{% if set.elements is defined %}
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elements = { {{ set.elements | join(", ") }} }
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{% endif %}
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}
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{% endfor %}
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{% endif %}
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{% if table.chains is defined %}
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{% for name, chain in table.chains.items() | default({}) %}
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chain {{ name }} {
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{% if chain.hook is defined %}
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type {{ chain.type }} hook {{ chain.hook }} priority {{ chain.priority }}
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policy {{ chain.policy }}
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{% endif %}
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{% for rule in chain.rules %}
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{{ rule | indent }}
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{% endfor %}
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}
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{% endfor %}
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{% endif %}
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}
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{% endfor %}
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