49 lines
2.5 KiB
Django/Jinja
49 lines
2.5 KiB
Django/Jinja
#!/usr/sbin/nft -f
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flush ruleset
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define NET4_SERVER = {{ hostvars['fw']['network']['subnet']['ipv4']['server'] }}
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define NET6_SERVER = {{ hostvars['fw']['network']['subnet']['ipv6']['server'] }}
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define HOSTS4_CONSOLE = { {{ hostvars['fw']['network']['console']['ipv4'] | dict2items | rejectattr('key', 'equalto', 'reverse') | map(attribute='value') | join(', ')}} }
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define HOSTS6_CONSOLE = { {{ hostvars['fw']['network']['console']['ipv6'] | dict2items | rejectattr('key', 'equalto', 'reverse') | map(attribute='value') | join(', ')}} }
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define HOSTS4_INFRA = {{ hostvars['fw']['network']['infra']['ipv4']['server'] }}
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define HOSTS6_INFRA = {{ hostvars['fw']['network']['infra']['ipv6']['server'] }}
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define HOSTS4_APP = {{ hostvars['fw']['network']['app']['ipv4']['server'] }}
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define HOSTS6_APP = {{ hostvars['fw']['network']['app']['ipv6']['server'] }}
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define PORTS_SSH = 22
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define PORTS_HTTPS = 443
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define PORTS_KOPIA = {{ services['kopia']['ports']['https'] }}
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table inet nat {
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chain prerouting {
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type nat hook prerouting priority dstnat; policy accept;
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tcp dport $PORTS_HTTPS dnat to :$PORTS_KOPIA comment "dnat https ports to $PORTS_KOPIA"
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}
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chain postrouting {
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}
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chain output {
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type nat hook output priority dstnat; policy accept;
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oifname "lo" tcp dport $PORTS_HTTPS dnat to :$PORTS_KOPIA comment "dnat https ports to $PORTS_KOPIA out of LOCALHOST"
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}
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}
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table inet filter {
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chain input {
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type filter hook input priority 0; policy drop;
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ct state invalid drop comment "deny invalid connection"
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ct state established, related accept comment "allow all connection already existing"
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iifname "lo" accept comment "allow local connection: BK > BK"
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meta l4proto { icmp, icmpv6 } accept comment "allow icmp connection: BK"
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ip saddr $HOSTS4_CONSOLE tcp dport $PORTS_SSH accept comment "allow ipv4 ssh connection: CONSOLE > BK"
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ip6 saddr $HOSTS6_CONSOLE tcp dport $PORTS_SSH accept comment "allow ipv6 ssh connection: CONSOLE > BK"
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ip saddr { $HOSTS4_CONSOLE, $HOSTS4_INFRA, $HOSTS4_APP } tcp dport $PORTS_KOPIA ct original proto-dst $PORTS_HTTPS accept comment "allow ipv4 https connection: > BK"
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ip6 saddr { $HOSTS6_CONSOLE, $HOSTS6_INFRA, $HOSTS6_APP } tcp dport $PORTS_KOPIA ct original proto-dst $PORTS_HTTPS accept comment "allow ipv6 https connection: > BK"
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}
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chain forward {
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type filter hook forward priority 0; policy drop;
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}
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chain output {
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type filter hook output priority 0; policy accept;
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}
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}
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