mirror of
https://git.sr.ht/~magic_rb/dotfiles
synced 2024-11-29 19:46:17 +01:00
462 lines
16 KiB
Nix
462 lines
16 KiB
Nix
inputs: {
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system = "x86_64-linux";
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modules = [
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../nixos-modules/default.nix
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({ lib, pkgs, config, secret, ... }:
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let
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HUPToConsul = pkgs.writeShellScriptBin "hup-to-consul"
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''
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export PATH=${pkgs.procps}/bin:$PATH
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pkill -x -HUP consul
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'';
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in
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{
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magic_rb = {
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pins = inputs;
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overlays = inputs.self.overlays;
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hardware.toothpick = true;
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flakes.enable = true;
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sshdEmacs.enable = true;
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vpsRemoteAccess =
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{ enable = true;
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trustedWheel = true;
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};
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};
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boot.loader.grub = {
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enable = true;
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version = 2;
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efiSupport = false;
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};
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environment.systemPackages =
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[ pkgs.git
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pkgs.envoy
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];
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boot.kernel.sysctl = { "net.ipv4.ip_forward" = "1"; };
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services.nomad = {
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enable = true;
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enableDocker = false;
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dropPrivileges = false;
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extraPackages = with pkgs; [ consul glibc ];
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extraSettingsPaths = [ "/var/secrets/nomad.hcl" ];
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};
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# https://github.com/NixOS/nixpkgs/issues/76671
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# the rpc.statd daemon is not running when not mounting any nfs filesystems on boot
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# and can't be manually started...
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services.nfs.server.enable = true;
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# create default network with `podman -r network create default`
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# virtualisation.podman = {
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# enable = true;
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# };
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virtualisation.docker = {
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enable = true;
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};
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services.consul = {
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enable = true;
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interface = {
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bind = "wg0";
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advertise = "wg0";
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};
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extraConfigFiles = [
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"/var/secrets/consul.hcl"
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];
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};
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systemd.services.vault-agent = {
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restartTriggers = [ "/etc/vault-agent/vault.crt" "/etc/vault-agent/vault.key" ];
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serviceConfig = {
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ExecPreStart = "mkdir -p /var/secrets/ && chown -R vault-agent:secrets /var/secrets/";
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};
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};
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security.sudo.extraRules =
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[ { users = [ "vault-agent" ];
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runAs = "consul";
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commands =
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[ { command = "${HUPToConsul}/bin/hup-to-consul";
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options = [ "NOPASSWD" ];
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}
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];
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}
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];
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services.vault-agent = {
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enable = true;
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settings = {
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vault = {
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address = "https://${secret.network.ips.vault.dns}:8200";
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client_cert = "/etc/vault-agent/vault.crt";
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client_key = "/etc/vault-agent/vault.key";
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};
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auto_auth = {
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method = [
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{
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"cert" = {
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name = "system-toothpick";
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};
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}
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];
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sink = [
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{
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"file" = {
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type = "file";
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config = {
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path = "/etc/vault-agent/vault.token";
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};
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};
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}
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];
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};
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template =
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let
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refreshConsul = pkgs.writeShellScript "refresh-consul.sh" ''
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export PATH=/run/wrappers/bin:$PATH
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sudo -u consul ${HUPToConsul}/bin/hup-to-consul
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'';
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in [
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{
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source = pkgs.writeText "vault.key.tpl" ''
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{{ with secret "pki_dynra/issue/vault.toothpick" "common_name=vault.toothpick.dyn.redalder.org" "ttl=24h" "alt_names=localhost" "ip_sans=127.0.0.1" }}
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{{ .Data.private_key }}
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{{ end }}
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'';
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destination = "/etc/vault-agent/vault.key.new";
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}
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# create role with
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# vault write pki_dynra/roles/vault.toothpick \
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# allowed_domains=vault.toothpick.dyn.redalder.org \
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# allow_subdomains=false \
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# max_ttl=72h \
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# allow_bare_domains=true
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#
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# also requires bootstrapping by generating the key/crt
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# the first time, look into the source template. Then the
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# generated cert must once again be first added to the
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# cert auth method, look into the command. Basically you
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# must manually do what vault-agent will do on its own
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# after bootstrap
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{
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source = pkgs.writeText "vault.crt.tpl" ''
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{{ with secret "pki_dynra/issue/vault.toothpick" "common_name=vault.toothpick.dyn.redalder.org" "ttl=24h" "alt_names=localhost" "ip_sans=127.0.0.1" }}
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{{ .Data.certificate }}
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{{ end }}
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'';
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destination = "/etc/vault-agent/vault.crt.new";
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command = pkgs.writeShellScript "vault.crt-renew" ''
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export PATH=${pkgs.vault}/bin:${pkgs.procps}/bin:$PATH
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set -ve
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export VAULT_ADDR="https://${secret.network.ips.vault.dns}:8200/"
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export VAULT_TOKEN="$(cat /etc/vault-agent/vault.token)"
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vault write auth/cert/certs/vault.toothpick \
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display_name=vault.toothpick \
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policies=vault.toothpick \
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certificate=@/etc/vault-agent/vault.crt.new \
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ttl=24h
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echo "$VAULT_TOKEN" > /var/secrets/vault.token
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cp /etc/vault-agent/vault.crt.new /etc/vault-agent/vault.crt
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cp /etc/vault-agent/vault.key.new /etc/vault-agent/vault.key
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pkill sleep || true
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( sleep "$((12 * 60 * 60))" && pkill -HUP vault ) &
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disown
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'';
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}
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# create role with
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# vault write pki_dynra/roles/consul.toothpick \
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# allowed_domains=consul.toothpick.dyn.redalder.org \
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# allow_subdomains=false \
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# max_ttl=72h \
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# allow_bare_domains=true
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#
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{
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source = pkgs.writeText "consul.crt.tpl" ''
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{{ with secret "pki_dynra/issue/consul.toothpick" "common_name=consul.toothpick.dyn.redalder.org" "ttl=24h" "alt_names=localhost" "ip_sans=127.0.0.1" }}
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{{ .Data.certificate }}
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{{ end }}
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'';
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destination = "/var/secrets/consul.crt";
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command = refreshConsul;
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}
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{
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source = pkgs.writeText "consul.key.tpl" ''
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{{ with secret "pki_dynra/issue/consul.toothpick" "common_name=consul.toothpick.dyn.redalder.org" "ttl=24h" "alt_names=localhost" "ip_sans=127.0.0.1" }}
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{{ .Data.private_key }}
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{{ end }}
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'';
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destination = "/var/secrets/consul.key";
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command = refreshConsul;
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}
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{
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source = pkgs.writeText "ca.crt.tpl" ''
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{{ with secret "pki_dynra/cert/ca" }}
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{{ .Data.certificate }}
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{{ end }}
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'';
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destination = "/var/secrets/ca.crt";
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}
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{
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source = pkgs.writeText "nomad.hcl.tpl" ''
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client {
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enabled = true
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cni_path = "${pkgs.cni-plugins}/bin"
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host_network "public" {
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cidr = "64.225.104.221/32"
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reserved_ports = ""
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}
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host_network "vpn" {
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cidr = "${secret.network.networks.vpn}"
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reserved_ports = ""
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}
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}
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advertise {
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http = "${secret.network.ips.toothpick}"
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rpc = "${secret.network.ips.toothpick}"
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serf = "${secret.network.ips.toothpick}"
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}
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plugin "docker" {
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config {
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endpoint = "unix:///var/run/docker.sock"
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allow_privileged = true
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}
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}
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vault {
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enabled = true
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address = "https://${secret.network.ips.vault.dns}:8200"
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allow_unauthenticated = false
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create_from_role = "nomad-cluster"
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}
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{{ with secret "kv/data/systems/toothpick/nomad" }}
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consul {
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ssl = false
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address = "127.0.0.1:8500"
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# ca_file = "/var/secrets/ca.crt"
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# key_file = "/var/secrets/consul.key"
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# cert_file = "/var/secrets/consul.crt"
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token = "{{ .Data.data.consul_token }}"
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auto_advertise = true
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server_auto_join = true
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client_auto_join = true
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}
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{{ end }}
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log_level = "DEBUG"
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disable_update_check = true
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datacenter = "do-1"
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data_dir = "/var/lib/nomad"
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'';
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destination = "/var/secrets/nomad.hcl";
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perms = "0644";
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}
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{
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source = pkgs.writeText "consul.hcl.tpl" ''
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datacenter = "do-1"
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node_name = "toothpick"
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data_dir = "/var/lib/consul"
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retry_join_wan = [ "${secret.network.ips.blowhole.ip}" ]
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server = true
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primary_datacenter = "homelab-1"
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acl {
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enabled = true
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default_policy = "deny"
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enable_token_persistence = true
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enable_token_replication = true
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{{ with secret "kv/data/systems/toothpick/consul" }}
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tokens {
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"agent" = "{{ .Data.data.agent_token }}"
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"replication" = "{{ .Data.data.replication_token }}"
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}
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{{ end }}
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}
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ui_config {
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enabled = true
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}
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connect {
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enabled = true
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}
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# ca_file = "/var/secrets/ca.crt"
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# cert_file = "/var/secrets/consul.crt"
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# key_file = "/var/secrets/consul.key"
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verify_incoming = false
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verify_outgoing = false
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verify_server_hostname = false
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log_level = "DEBUG"
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ports {
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http = 8500
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# https = 8501
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grpc = 8502
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}
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'';
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# ca_provider = "vault"
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# ca_config {
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# address = "https://${secret.network.ips.vault.dns}:8200"
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# token = "{{ file "/var/secrets/vault.token" | trimSpace }}"
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# root_pki_path = "consul_root"
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# intermediate_pki_path = "consul_intermediate"
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# }
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destination = "/var/secrets/consul.hcl";
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perms = "0644";
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}
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];
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};
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};
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networking = {
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hostName = "toothpick";
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nameservers =
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[ "${secret.network.ips.woodchip}"
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"93.184.77.2"
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"67.207.67.3"
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];
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wireguard = {
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enable = true;
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interfaces."wg0" =
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{
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postSetup = ''
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${pkgs.iptables}/bin/iptables -I FORWARD -i wg0 -o wg0 -j ACCEPT
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'';
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postShutdown = ''
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${pkgs.iptables}/bin/iptables -D FORWARD -i wg0 -o wg0 -j ACCEPT
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'';
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} // config.magic_rb.secret.wireguard."toothpick";
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interfaces."wg1" =
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{
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postSetup = ''
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'';
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postShutdown = ''
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'';
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} // config.magic_rb.secret.wireguard."toothpick-matej";
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};
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defaultGateway = "64.225.96.1";
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defaultGateway6 = "";
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dhcpcd.enable = false;
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usePredictableInterfaceNames = lib.mkForce false;
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firewall = {
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extraCommands = ''
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iptables -P FORWARD DROP
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'';
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# extraStopCommands = ''
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# '';
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interfaces."eth0" = {
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allowedTCPPorts =
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[ 80
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443
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];
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allowedUDPPorts =
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[ 6666
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6668
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];
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};
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interfaces."wg0" = {
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allowedTCPPorts =
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[ ## Consul
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8600 # DNS
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8500 # HTTP
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8502 # gRPC
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8300 # server
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8301 # LAN serf
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8302 # WAN serf
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10000
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];
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allowedTCPPortRanges =
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[ {
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from = 21000;
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to = 21255;
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}];
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allowedUDPPorts =
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[ ## Consul
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8600 # DNS
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8301 # LAN serf
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8302 # WAN serf
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];
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allowedUDPPortRanges =
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[ {
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from = 21000;
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to = 21255;
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}];
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};
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};
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interfaces = {
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eth0 = {
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ipv4.addresses =
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[ { address="64.225.104.221"; prefixLength=20; }
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{ address="10.19.0.6"; prefixLength=16; }
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];
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ipv6.addresses =
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[ { address="fe80::8ce0:84ff:fefb:f981";
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prefixLength=64;
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}
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];
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ipv4.routes =
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[ { address = "64.225.96.1"; prefixLength = 32; }
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];
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};
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};
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};
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security.pki.certificates =
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[ (builtins.readFile ../redalder.org.crt)
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(builtins.readFile ../dyn.redalder.org.crt)
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];
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services.udev.extraRules = ''
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ATTR{address}=="8e:e0:84:fb:f9:81", NAME="eth0"
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'';
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time.timeZone = "Europe/Bratislava";
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system.stateVersion = "21.05";
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})
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];
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}
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