James/eve-psr-nix0
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Refactor nginx.nix using generative functions; Remove bind container service; Enable CoreDNS; Open 53UDP on system firewall; rename service files; containers listen on localhost only; added SDA-EXT data volume

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This commit is contained in:
James Eversole 2023-06-27 19:41:33 -05:00
parent 13e06ad3af
commit 6de382ceb4
10 changed files with 159 additions and 163 deletions
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41
README
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@ -1,19 +1,49 @@
# eve-psr-nix0
This repository holds the configuration for my primary home server.
This README exists to document solutions used or implemented with Nix.
---
## details
- Defines a single node host
- Follows the latest stable nixpkgs
- Utilizes the nixpkgs-fmt code formatter
-> /flake.nix
- Provides a devShell with direnv/nix-direnv integration
- Common project scripts are packaged and then exposed via devShell/direnv
-> /shell.nix
- Allows SSH Access
- Enables the Hydra build server
- Enables the nix-serve-ng binary cache server
-> /system/services.nix
- HTTP entrypoint is an Nginx Reverse Proxy
- Automatic TLS provisioning via Let's Encrypt ACME
- Directly reference nix packages and configuration in Virtual Host definitions
-> /applcation/nginx.nix
- Monitoring stack consisting of Prometheus, Grafana, Loki, and Promtail
- Complete monitoring stack and connections are defined declaratively via Nix
-> /monitoring/*.nix
- podman & systemd container orchestration
- podman services are exposed only to localhost and are reverse proxied by Nginx
-> /application/containers.nix
- agenix for secrets encryption and management
-> /system/age.nix
## cheatsheet
### Enter the developer shell without pulling down the repository:
### Enter the developer shell without cloning the repository:
```
$> nix develop git+https://git.eversole.co/eve-psr-nix0
$nix> # Success!
```
The rest of the cheatsheet assumes you have already cloned the repository and entered the developer shell:
The rest of the cheatsheet assumes you have entered the developer shell or are using direnv:
```
$> git clone https://git.eversole.co/eve-psr-nix0
$> cd eve-psr-nix0
@ -23,13 +53,14 @@ $nix> # Success! Now we have our development dependencies.
### Use the developer shell alias to remotely build and deploy the configuration to eve-psr-nix0:
```
# This is it! Check the shellHook in outputs.devShell.x86_64-linux for more details.
# This is it! Check the package definitions in /shell.nix for more details.
$nix> deploy
```
### Format .nix source files:
```
$nix> nix fmt *.nix
# This is it! Check the package definitions in /shell.nix for more details.
$nix> format
```
### Create a new agenix secret:

20
application/containers.nix
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@ -2,17 +2,9 @@
virtualisation.oci-containers = {
containers = {
bind = {
image = "sameersbn/bind:latest";
ports =
[ "0.0.0.0:53:53/tcp" "0.0.0.0:53:53/udp" "0.0.0.0:5053:10000/tcp" ];
volumes = [ "/home/sezycei/srv/containerdata/bind/bind:/data" ];
environmentFiles = [ /home/sezycei/srv/containerdata/bind/.env ];
};
jellyfin = {
image = "linuxserver/jellyfin";
ports = [ "0.0.0.0:8096:8096" "0.0.0.0:8920:8920" ];
ports = [ "127.0.0.1:8096:8096" "127.0.0.1:8920:8920" ];
volumes = [
"/home/sezycei/srv/containerdata/jellyfin/config:/config"
"/home/torrent/data/completed:/data/unsorted"
@ -31,7 +23,7 @@
legit = {
image = "docker.matri.cx/legit";
ports = [ "0.0.0.0:5121:8080" ];
ports = [ "127.0.0.1:5121:8080" ];
volumes = [
"/home/sezycei/srv/containerdata/legit/static:/static"
"/home/sezycei/srv/containerdata/legit/templates:/templates"
@ -43,7 +35,7 @@
murmur = {
image = "goofball222/murmur";
ports = [ "0.0.0.0:64738:64738" "0.0.0.0:64738:64738/udp" ];
ports = [ "127.0.0.1:64738:64738" "127.0.0.1:64738:64738/udp" ];
volumes = [
"/home/sezycei/srv/containerdata/registry/registry/data:/var/lib/registry"
"/home/sezycei/srv/containerdata/registry/registry/certs:/certs"
@ -54,7 +46,7 @@
purr = {
image = "docker.matri.cx/purr";
ports = [ "0.0.0.0:5195:3000" ];
ports = [ "127.0.0.1:5195:3000" ];
volumes = [
"/home/sezycei/dev/purr/data/Purr.sqlite:/app/data/Purr.sqlite"
"/home/sezycei/dev/purr/config.dhall:/app/config.dhall"
@ -64,7 +56,7 @@
registry = {
image = "registry:2";
ports = [ "0.0.0.0:3001:5000" ];
ports = [ "127.0.0.1:3001:5000" ];
volumes = [
"/home/sezycei/srv/containerdata/registry/registry/data:/var/lib/registry"
"/home/sezycei/srv/containerdata/registry/registry/certs:/certs"
@ -75,7 +67,7 @@
transmission = {
image = "haugene/transmission-openvpn";
ports = [ "0.0.0.0:9091:9091" ];
ports = [ "127.0.0.1:9091:9091" ];
volumes = [
"/home/sezycei/srv/scripts/transmission/settings.json:/etc/transmission-daemon/settings.json"
"/etc/localtime:/etc/localtime:ro"

161
application/nginx.nix
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@ -1,124 +1,77 @@
{ config, ... }: {
{ pkgs, config, ... }:
let
containernix = import ./containers.nix;
containers = containernix.virtualisation.oci-containers.containers;
in
{
services.nginx = {
enable = true;
recommendedProxySettings = true;
recommendedOptimisation = true;
recommendedGzipSettings = true;
virtualHosts."cache.matri.cx" = {
virtualHosts =
let
base = locations: {
enableACME = true;
forceSSL = true;
root = "/var/www/cache.matri.cx";
locations."/" = {
extraConfig = "allow 192.168.0.0\/24;\ndeny all;";
proxyPass = "http://${config.services.nix-serve.bindAddress}:${toString config.services.nix-serve.port}";
inherit locations;
};
static = { dir }: base {
"/".root = dir;
};
proxied = { target, extra ? "" }: base {
"/" = {
proxyPass = target;
extraConfig = extra;
};
};
virtualHosts."caitlynncox.com" = {
enableACME = true;
forceSSL = true;
root = "/var/www/caitlynncox.com";
};
virtualHosts."dallasmed65.com" = {
enableACME = true;
forceSSL = true;
root = "/var/www/dallasmed65.com";
};
virtualHosts."docker.matri.cx" = {
enableACME = true;
forceSSL = true;
root = "/var/www/docker.matri.cx";
locations."/" = {
basicAuthFile = config.age.secrets.htpasswd-dock.path;
proxyPass = "http://192.168.0.130:3001";
proxiedAuth = { target, extra ? "", auth }: base {
"/" = {
proxyPass = target;
basicAuthFile = auth;
extraConfig = extra;
};
};
virtualHosts."eversole.co" = {
enableACME = true;
forceSSL = true;
root = "/var/www/jame.su";
locations = {
"/.well-known/openpgpkey/hu/".extraConfig = ''
default_type "application/octet-stream";
add_header Access-Control-Allow-Origin * always;
'';
"/ip".proxyPass = "http://192.168.0.130:5001";
"/pw".proxyPass = "http://192.168.0.130:5002";
};
};
virtualHosts."git.eversole.co" = {
enableACME = true;
forceSSL = true;
root = "/var/www/git.eversole.co";
locations = {
"/James".extraConfig = ''
if ($request_uri ~* "([^/]*$)" ) {
return 301 https://$server_name/$1;
}
'';
"/".proxyPass = "http://192.168.0.130:5121";
};
};
# refer to /monitoring/nginx.nix
virtualHosts."graf.eversole.co" = {
root = "/var/www/graf.eversole.co";
};
virtualHosts."hydra.matri.cx" = {
enableACME = true;
forceSSL = true;
root = "/var/www/hydra.matri.cx";
locations."/" = {
proxyPass = "http://192.168.0.130:3034";
proxiedLAN = { target }: base {
"/" = {
proxyPass = target;
extraConfig = ''
allow 192.168.0.0/24;
deny all;
'';
};
};
in
{
"cache.matri.cx" = proxiedLAN {
target = "http://${config.services.nix-serve.bindAddress}:${toString config.services.nix-serve.port}";
};
"caitlynncox.com" = static { dir = "/var/www/caitlynncox.com"; };
"dallasmed65.com" = static { dir = "/var/www/dallasmed65.com"; };
"docker.matri.cx" = proxiedAuth {
auth = config.age.secrets.htpasswd-dock.path;
target = "http://127.0.0.1:3001";
};
"eversole.co" = static { dir = "/var/www/jame.su"; };
"git.eversole.co" = proxied { target = "http://127.0.0.1:5121"; };
"graf.eversole.co" = { root = "/var/www/graf.eversole.co"; }; # refer to /monitoring/nginx.nix
"hydra.matri.cx" = proxied {
target = "http://127.0.0.1:3034";
extra = ''
proxy_set_header X-Request-Base "https://hydra.matri.cx";
'';
};
"jame.su" = static { dir = "/var/www/jame.su"; };
"matri.cx" = static { dir = "/var/www/matri.cx"; };
"media.matri.cx" = proxied { target = "http://127.0.0.1:8096"; };
"sezycei.com" = static { dir = "/var/www/sezycei.com"; };
"snakebelmont.com" = static { dir = "/var/www/snakebelmont.com"; };
"transmission.matri.cx" = proxiedLAN { target = "http://127.0.0.1:9001"; };
"purr.eversole.co" = proxied { target = "http://127.0.0.1:5195"; };
};
virtualHosts."jame.su" = {
enableACME = true;
forceSSL = true;
root = "/var/www/jame.su";
};
virtualHosts."matri.cx" = {
enableACME = true;
forceSSL = true;
root = "/var/www/matri.cx";
};
virtualHosts."media.matri.cx" = {
enableACME = true;
forceSSL = true;
root = "/var/www/media.matri.cx";
locations."/".proxyPass = "http://192.168.0.130:8096";
};
virtualHosts."sezycei.com" = {
enableACME = true;
forceSSL = true;
root = "/var/www/sezycei.com";
};
virtualHosts."snakebelmont.com" = {
enableACME = true;
forceSSL = true;
root = "/var/www/snakebelmont.com";
};
virtualHosts."purr.eversole.co" = {
enableACME = true;
forceSSL = true;
root = "/var/www/purr.eversole.co";
locations."/".proxyPass = "http://192.168.0.130:5195";
};
};
}

3
flake.nix
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@ -47,10 +47,11 @@
./monitoring/promtail.nix
./system/age.nix
./system/dns.nix
./system/hardware.nix
./system/nix-conf.nix
./system/security.nix
./system/services.nix
./system/build-services.nix
./system/system.nix
./system/virtualisation.nix

2
shell.nix
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@ -14,7 +14,7 @@
packages = {
x86_64-linux = {
deploy = pkgs.writeShellScriptBin "deploy" ''
nixos-rebuild switch --target-host root@matri.cx --build-host root@matri.cx --flake .#eve-psr-nix0 ;
nixos-rebuild switch --target-host root@192.168.0.130 --build-host root@192.168.0.130 --flake .#eve-psr-nix0 ;
'';
format = pkgs.writeShellScriptBin "format" ''
nix fmt ./*.nix;

4
system/services.nix → system/build-services.nix
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@ -1,11 +1,9 @@
{ config, ... }: {
services = {
openssh = { enable = true; };
hydra = {
enable = true;
hydraURL = "https://hydra.matri.cx";
listenHost = "192.168.0.130";
listenHost = "127.0.0.1";
port = 3034;
extraConfig = ''

17
system/dns.nix Normal file
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@ -0,0 +1,17 @@
{ config, ... }: {
services = {
coredns.enable = true;
coredns.config = ''
. {
forward . 9.9.9.9 149.112.112.112 84.200.69.80 84.200.70.40
cache
}
matri.cx {
template IN A {
answer "{{ .Name }} 0 IN A 192.168.0.130"
}
}
'';
};
}

33
system/hardware.nix
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@ -1,37 +1,38 @@
# Do not modify this file! It was generated by ‘nixos-generate-config’
# and may be overwritten by future invocations. Please make changes
# to /etc/nixos/configuration.nix instead.
{ config, lib, pkgs, modulesPath, ... }:
{
imports = [ (modulesPath + "/installer/scan/not-detected.nix") ];
boot.initrd.availableKernelModules =
boot = {
initrd = {
availableKernelModules =
[ "xhci_pci" "ahci" "nvme" "usb_storage" "usbhid" "sd_mod" "sdhci_pci" ];
boot.initrd.kernelModules = [ ];
boot.kernelModules = [ "kvm-intel" ];
boot.extraModulePackages = [ ];
kernelModules = [ ];
};
kernelModules = [ "kvm-intel" ];
extraModulePackages = [ ];
};
fileSystems."/" = {
fileSystems = {
"/" = {
device = "/dev/disk/by-label/NIXROOT";
fsType = "ext4";
};
fileSystems."/boot" = {
"/mnt/data" = {
device = "/dev/disk/by-label/SDA-EXT";
fsType = "ext4";
};
"/boot" = {
device = "/dev/disk/by-label/NIXBOOT";
fsType = "vfat";
};
};
swapDevices = [ ];
# Enables DHCP on each ethernet and wireless interface. In case of scripted networking
# (the default) this is the recommended approach. When using systemd-networkd it's
# still possible to use this option, but it's recommended to use it in conjunction
# with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
networking.useDHCP = lib.mkDefault true;
# networking.interfaces.eno1.useDHCP = lib.mkDefault true;
# networking.interfaces.wlp0s20f3.useDHCP = lib.mkDefault true;
nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
powerManagement.cpuFreqGovernor = lib.mkDefault "powersave";
hardware.cpu.intel.updateMicrocode =

3
system/security.nix
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@ -1,4 +1,7 @@
{ ... }: {
services.openssh = {
enable = true;
};
security = {
sudo.wheelNeedsPassword = false;
acme = {

2
system/system.nix
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@ -10,7 +10,7 @@
hostName = "eve-psr-nix0";
firewall = {
allowedTCPPorts = [ 22 80 443 ];
allowedUDPPorts = [ 22 80 443 ];
allowedUDPPorts = [ 22 80 443 53 ];
};
};