diff --git a/README.md b/README.md index 3e3b363..df2e01e 100644 --- a/README.md +++ b/README.md @@ -51,3 +51,11 @@ You can use cron to run the script. Example to run it every day at 4pm: DATEVAR=date +%Y-%m-%d 0 16 * * * ENV_FILE_PATH=/home/prod.env /home/fleets >> /home/cron-$($DATEVAR).log 2>&1 ``` + +## Running using Nix + +If you have Nix with [Flakes](https://nixos.wiki/wiki/Flakes) enabled, you can run this program directly from GitHub: + +```sh +nix run github:karan/fleets +``` diff --git a/flake.lock b/flake.lock new file mode 100644 index 0000000..57c5653 --- /dev/null +++ b/flake.lock @@ -0,0 +1,26 @@ +{ + "nodes": { + "nixpkgs": { + "locked": { + "lastModified": 1643788601, + "narHash": "sha256-6l5Ax44pC/Oo/Muj5Y/NA27Pd38Wty/7GtGSSmYNug4=", + "owner": "NixOS", + "repo": "nixpkgs", + "rev": "f6ddd55d5f9d5eca08df138c248008c1ba73ecec", + "type": "github" + }, + "original": { + "id": "nixpkgs", + "ref": "nixos-21.11", + "type": "indirect" + } + }, + "root": { + "inputs": { + "nixpkgs": "nixpkgs" + } + } + }, + "root": "root", + "version": 7 +} diff --git a/flake.nix b/flake.nix new file mode 100644 index 0000000..83ca9c5 --- /dev/null +++ b/flake.nix @@ -0,0 +1,57 @@ +{ + description = "fleets"; + + # Nixpkgs / NixOS version to use. + inputs.nixpkgs.url = "nixpkgs/nixos-21.11"; + + outputs = { self, nixpkgs }: + let + + # Generate a user-friendly version number. + version = builtins.substring 0 8 self.lastModifiedDate; + + # System types to support. + supportedSystems = [ "x86_64-linux" "x86_64-darwin" "aarch64-linux" "aarch64-darwin" ]; + + # Helper function to generate an attrset '{ x86_64-linux = f "x86_64-linux"; ... }'. + forAllSystems = nixpkgs.lib.genAttrs supportedSystems; + + # Nixpkgs instantiated for supported system types. + nixpkgsFor = forAllSystems (system: import nixpkgs { inherit system; }); + + in + { + + # Provide some binary packages for selected system types. + packages = forAllSystems (system: + let + pkgs = nixpkgsFor.${system}; + in + { + fleets = pkgs.buildGoModule { + pname = "fleets"; + inherit version; + # In 'nix develop', we don't need a copy of the source tree + # in the Nix store. + src = ./.; + + # This hash locks the dependencies of this package. It is + # necessary because of how Go requires network access to resolve + # VCS. See https://www.tweag.io/blog/2021-03-04-gomod2nix/ for + # details. Normally one can build with a fake sha256 and rely on native Go + # mechanisms to tell you what the hash should be or determine what + # it should be "out-of-band" with other tooling (eg. gomod2nix). + # To begin with it is recommended to set this, but one must + # remeber to bump this hash when your dependencies change. + #vendorSha256 = pkgs.lib.fakeSha256; + + vendorSha256 = "sha256-aNuN+NVSTEFLWZX2QYCx8NtQ53hg9mUdvbJleKAo6BA"; + }; + }); + + # The default package for 'nix build'. This makes sense if the + # flake provides only one package or there is a clear "main" + # package. + defaultPackage = forAllSystems (system: self.packages.${system}.fleets); + }; +}