felixalb/nixos-config
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malcolm: Configure firewall and wordpress

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This commit is contained in:
Felix Albrigtsen 2024-09-07 21:39:45 +02:00
parent 8777536817
commit 5261abf72c
4 changed files with 144 additions and 1 deletions
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24
hosts/malcolm/configuration.nix
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@ -6,6 +6,10 @@
../../base.nix
../../common/metrics-exporters.nix
./services/mysql.nix
./services/nginx.nix
./services/www-kinealbrigtsen-no.nix
];
networking = {
@ -18,8 +22,26 @@
hostId = "620c42d0";
defaultGateway = "192.168.11.1";
# Prepend the following output rules to disallow talking to other devices on LAN
firewall.extraCommands = lib.strings.concatLines ([
"iptables -F OUTPUT"
] ++ (map (addr: "iptables -A OUTPUT -p udp --dport 53 -d ${addr} -j nixos-fw-accept") config.networking.nameservers) ++ [ # Exception for DNS
"iptables -A OUTPUT -p tcp --dport 3100 -d 192.168.10.175 -j nixos-fw-accept" # Exception for loki logging
"iptables -A OUTPUT -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT"
"iptables -A OUTPUT -d 192.168.10.0/24 -j nixos-fw-refuse"
"iptables -A OUTPUT -d 192.168.11.0/24 -j nixos-fw-refuse"
]);
};
# virtualisation.oci-containers.backend = "docker";
# systemd.services.docker.postStart = lib.concatMapStringsSep "\n" (rule: "${pkgs.iptables}/bin/iptables ${rule}") ([
# "-F DOCKER-USER"
# ] ++ (map (addr: "-A DOCKER-USER -p udp --dport 53 -d ${addr} -j RETURN") config.networking.nameservers) ++ [
# "-A DOCKER-USER -d 192.168.10.0/24 -j REJECT"
# "-A DOCKER-USER -d 192.168.11.0/24 -j REJECT"
# "-A DOCKER-USER -j RETURN"
# ]);
system.stateVersion = "24.05"; # Did you read the comment?
system.stateVersion = "24.05";
}

10
hosts/malcolm/services/mysql.nix Normal file
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@ -0,0 +1,10 @@
{ config, pkgs, lib, ... }:
{
services.mysql = {
enable = true;
package = pkgs.mariadb;
};
# TODO: services.mysqlBackup
}

15
hosts/malcolm/services/nginx.nix Normal file
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@ -0,0 +1,15 @@
{ config, values, ... }:
{
services.nginx = {
enable = true;
clientMaxBodySize = "100m";
recommendedProxySettings = true;
recommendedTlsSettings = true;
recommendedGzipSettings = true;
recommendedOptimisation = true;
};
networking.firewall.allowedTCPPorts = [ 80 443 ];
}

96
hosts/malcolm/services/www-kinealbrigtsen-no.nix Normal file
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@ -0,0 +1,96 @@
{ config, pkgs, lib, ... }:
{
users.users.www-kinealbrigtsen-no = {
isSystemUser = true;
group = "www-kinealbrigtsen-no";
};
users.groups.www-kinealbrigtsen-no = { };
services.mysql.ensureDatabases = [
"www_kinealbrigtsen_no"
];
services.mysql.ensureUsers = [
{
name = "www-kinealbrigtsen-no";
ensurePermissions = {
# "www_kinealbrigtsen_no.*" = "ALL PRIVILEGES"; # For upgrades and special procedures
"www_kinealbrigtsen_no.*" = "SELECT, INSERT, UPDATE, DELETE, CREATE, DROP, ALTER, INDEX";
};
}
];
services.phpfpm.pools.www-kinealbrigtsen-no = {
user = "www-kinealbrigtsen-no";
group = "www-kinealbrigtsen-no";
phpOptions = lib.generators.toKeyValue {} {
upload_max_filesize = "1000M";
post_max_size = "1000M";
memory_limit = "1000M";
};
settings = {
"listen.owner" = config.services.nginx.user;
"listen.group" = config.services.nginx.group;
"pm" = "dynamic";
"pm.max_children" = 32;
"pm.start_servers" = 2;
"pm.min_spare_servers" = 2;
"pm.max_spare_servers" = 4;
"pm.process_idle_timeout" = "10s";
"pm.max_requests" = 1000;
};
};
services.nginx.virtualHosts."kinealbrigtsen.no" = {
serverAliases = [ "www.kinealbrigtsen.no" ];
root = "/var/www/www-kinealbrigtsen-no";
locations = {
"/".extraConfig = ''
try_files $uri $uri/ /index.php?$args;
'';
"~ \\.php$".extraConfig = ''
include ${config.services.nginx.package}/conf/fastcgi_params;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
fastcgi_pass unix:${config.services.phpfpm.pools.www-kinealbrigtsen-no.socket};
'';
"~ /\\.ht".extraConfig = ''
deny all;
'';
"/favicon.ico".extraConfig = ''
log_not_found off;
access_log off;
'';
"/robots.txt".extraConfig = ''
allow all;
log_not_found off;
access_log off;
'';
"~* \\.(js|css|png|jpg|jpeg|gif|ico)$".extraConfig = ''
expires max;
log_not_found off;
'';
};
extraConfig = ''
index index.php index.html;
set_real_ip_from 192.168.11.0/24;
real_ip_header X-Forwarded-For;
add_header Content-Security-Policy "script-src 'self'; object-src 'none'; base-uri 'none';" always;
add_header 'Referrer-Policy' 'origin-when-cross-origin';
add_header X-Frame-Options DENY;
add_header X-Content-Type-Options nosniff;
'';
};
# TODO:
# - Configure a mailer so wp_mail() works
# - Enable periodic backups
}