306 lines
7.7 KiB
Markdown
306 lines
7.7 KiB
Markdown
# Integrating usda-dash-config with athenix
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This guide shows how to properly integrate the usda-vision flake and usda-dash-config module into your athenix infrastructure.
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## Architecture
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```
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athenix/ (main flake)
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├── flake.nix
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│ └── inputs.usda-vision (flake input)
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└── nixos-systems/
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└── inventory.nix
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└── imports usda-dash-config/default.nix (external module)
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└── receives usda-vision packages as parameter
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```
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## Step 1: Add usda-vision as a flake input in athenix
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In your `~/athenix/flake.nix`, add usda-vision as an input:
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```nix
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{
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description = "Athenix infrastructure";
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inputs = {
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nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
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# Add usda-vision flake
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usda-vision = {
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url = "path:/path/to/usda-dash-config/usda-vision";
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inputs.nixpkgs.follows = "nixpkgs";
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};
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# Your other inputs...
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};
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outputs = { self, nixpkgs, usda-vision, ... }: {
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# Your outputs...
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};
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}
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```
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## Step 2: Make packages available to NixOS modules
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In your athenix flake outputs, ensure the usda-vision packages are available to your NixOS configurations. There are two approaches:
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### Approach A: Using specialArgs (Recommended)
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```nix
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outputs = { self, nixpkgs, usda-vision, ... }: {
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nixosConfigurations.usda-dash = nixpkgs.lib.nixosSystem {
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system = "x86_64-linux";
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specialArgs = {
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# Pass usda-vision packages to all modules
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usda-vision-packages = usda-vision.packages.x86_64-linux;
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};
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modules = [
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# Your modules...
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];
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};
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}
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```
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### Approach B: Using _module.args
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```nix
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outputs = { self, nixpkgs, usda-vision, ... }: {
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nixosConfigurations.usda-dash = nixpkgs.lib.nixosSystem {
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system = "x86_64-linux";
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modules = [
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# Make packages available as module args
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{
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_module.args = {
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usda-vision-packages = usda-vision.packages.x86_64-linux;
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};
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}
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# Your other modules...
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];
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};
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}
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```
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## Step 3: Configure secrets with ragenix in athenix
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Secrets are managed by ragenix in the athenix flake, not in this flake. Configure your secrets in athenix:
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```nix
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# In your athenix flake or secrets configuration
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{
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age.secrets.usda-vision-env = {
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file = ./secrets/usda-vision/env.age; # Encrypted with ragenix in athenix
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mode = "0644";
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owner = "root";
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group = "root";
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};
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age.secrets.usda-vision-azure-env = {
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file = ./secrets/usda-vision/azure-env.age; # Encrypted with ragenix in athenix
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mode = "0644";
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owner = "root";
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group = "root";
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};
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}
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```
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## Step 4: Import usda-dash-config in inventory.nix
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In your `nixos-systems/inventory.nix` (or wherever you import external modules):
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```nix
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{ config, usda-vision-packages, ... }:
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{
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imports = [
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# Import the usda-dash-config module, passing packages and secret paths
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(import /path/to/usda-dash-config/default.nix {
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inherit usda-vision-packages;
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envFile = config.age.secrets.usda-vision-env.path;
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azureEnvFile = config.age.secrets.usda-vision-azure-env.path;
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})
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# Your other imports...
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];
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}
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```
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Or if using nix-lxc devices pattern:
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```nix
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{ config, usda-vision-packages, ... }:
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{
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nix-lxc = {
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devices = {
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"usda-dash" =
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let
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usda-dash-config = builtins.fetchGit {
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url = "https://git.factory.uga.edu/MODEL/usda-dash-config.git";
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rev = "commit-hash";
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submodules = true;
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};
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in
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import "${usda-dash-config}/default.nix" {
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inherit usda-vision-packages;
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envFile = config.age.secrets.usda-vision-env.path;
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azureEnvFile = config.age.secrets.usda-vision-azure-env.path;
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};
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};
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};
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}
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```
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## Complete Example
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Here's a complete example of how it all fits together:
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### ~/athenix/flake.nix
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```nix
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{
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description = "Athenix infrastructure";
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inputs = {
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nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
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usda-vision = {
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url = "path:/home/engr-ugaif/usda-dash-config/usda-vision";
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inputs.nixpkgs.follows = "nixpkgs";
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};
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agenix.url = "github:ryantm/agenix";
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};
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outputs = { self, nixpkgs, usda-vision, agenix, ... }: {
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nixosConfigurations = {
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usda-dash = nixpkgs.lib.nixosSystem {
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system = "x86_64-linux";
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specialArgs = {
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usda-vision-packages = usda-vision.packages.x86_64-linux;
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};
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modules = [
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agenix.nixosModules.default
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./nixos-systems/inventory.nix
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];
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};
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};
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};
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}
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```
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### ~/athenix/nixos-systems/inventory.nix
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```nix
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{ config, pkgs, usda-vision-packages, ... }:
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{
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imports = [
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# Import usda-dash-config, passing the packages and secret file paths
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(import /home/engr-ugaif/usda-dash-config/default.nix {
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inherit usda-vision-packages;
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envFile = config.age.secrets.usda-vision-env.path;
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azureEnvFile = config.age.secrets.usda-vision-azure-env.path;
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})
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];
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# Configure secrets (managed by ragenix in athenix)
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age.secrets.usda-vision-env = {
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file = ./secrets/usda-vision/env.age; # Store encrypted secrets in athenix
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mode = "0644";
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};
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age.secrets.usda-vision-azure-env = {
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file = ./secrets/usda-vision/azure-env.age; # Azure OAuth config
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mode = "0644";
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};
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# The usda-dash services are now configured and will use the ragenix-managed secrets
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}
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```
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## Local Development vs Production
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### Local Development (in usda-vision/)
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```bash
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cd /path/to/usda-dash-config/usda-vision
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nix develop # Uses the local flake
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```
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### Production Build (from athenix)
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```bash
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cd ~/athenix
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nixos-rebuild switch --flake .#usda-dash
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```
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The usda-vision packages are built by athenix and passed to the usda-dash-config module.
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## Troubleshooting
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### "usda-vision-packages is null"
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The packages aren't being passed correctly. Check:
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- `usda-vision` is in your athenix flake inputs
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- `specialArgs` or `_module.args` includes `usda-vision-packages`
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- The import in inventory.nix uses `inherit usda-vision-packages;`
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### "attribute 'camera-sdk' missing"
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The usda-vision flake hasn't been built. Try:
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```bash
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nix flake update # Update the flake lock
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nix build /path/to/usda-dash-config/usda-vision#camera-sdk # Test build
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```
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### Fallback behavior
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If `usda-vision-packages` is not provided, the module falls back to building locally with `callPackage`. This works for standalone testing but isn't recommended for production.
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## Benefits of This Approach
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1. ✅ **Pure builds**: No `--impure` needed
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2. ✅ **Centralized secrets**: Secrets managed by ragenix in athenix, not in usda-vision flake
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3. ✅ **Centralized packages**: usda-vision is built once by athenix
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4. ✅ **Version control**: Lock file in athenix controls versions
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5. ✅ **Clean separation**:
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- usda-vision flake: package definitions only
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- athenix: secrets management and deployment
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- usda-dash-config: NixOS module configuration
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6. ✅ **Flexible secrets**: Can easily pass different secret files per environment (dev/staging/prod)
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## Managing Secrets in Athenix
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To create and manage secrets in athenix:
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```bash
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# In athenix directory
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cd ~/athenix
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# Create the secrets directory
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mkdir -p secrets/usda-vision
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# Create/edit the main environment file secret
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ragenix -e secrets/usda-vision/env.age
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# Create/edit the Azure environment file secret
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ragenix -e secrets/usda-vision/azure-env.age
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```
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The content of `env.age` should match the format of `.env.example`:
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```bash
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VITE_SUPABASE_URL=http://127.0.0.1:54321
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VITE_SUPABASE_ANON_KEY=your-key-here
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# ... etc
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```
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- usda-vision = flake (build system)
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- usda-dash-config = module (configuration)
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- athenix = orchestrator (infrastructure)
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5. ✅ **Reusable**: Other athenix machines can use the same packages
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