Skip to content

Instantly share code, notes, and snippets.

@alekseysidorov

alekseysidorov/shell.nix

Last active May 27, 2023 04:26
Show Gist options

  • Select an option

    Learn more about clone URLs
  • Save alekseysidorov/5e027e7574cd47d720324f00c20eeb8e to your computer and use it in GitHub Desktop.

Select an option

Learn more about clone URLs
Save alekseysidorov/5e027e7574cd47d720324f00c20eeb8e to your computer and use it in GitHub Desktop.
Download ZIP

Revisions

  1. alekseysidorov revised this gist Mar 11, 2023. 1 changed file with 0 additions and 1 deletion.
    1 change: 0 additions & 1 deletion shell.nix
    View file
    Original file line number Diff line number Diff line change
    @@ -33,7 +33,6 @@ pkgs.mkShell {
    docker
    ];
    text = let shellFile = ./shell.nix; in ''
    set -x
    binary_name=$1
    # Compile cargo binary
    cargo build --release
  2. alekseysidorov revised this gist Mar 11, 2023. 1 changed file with 1 addition and 1 deletion.
    2 changes: 1 addition & 1 deletion shell.nix
    View file
    Original file line number Diff line number Diff line change
    @@ -66,7 +66,7 @@ pkgs.mkShell {
    Usage:
    ```shell
    cargo-nix-docker-image <workspace-member>
    cargo-nix-docker-image executable-name>
    ```
    */
    passthru.dockerImage = (
  3. alekseysidorov created this gist Mar 11, 2023.
    104 changes: 104 additions & 0 deletions shell.nix
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,104 @@
    { localSystem ? builtins.currentSystem
    , crossSystem ? { config = "x86_64-unknown-linux-musl"; isStatic = true; useLLVM = true; }
    }:
    let
    # Fetch the nixpkgs-cross-overlay sources.
    src = builtins.fetchTarball "https://github.com/alekseysidorov/nixpkgs-cross-overlay/tarball/main";
    # Use the nixpkgs revision provided by the overlay.
    # This is the best way, as they are the most proven and compatible.
    nixpkgs = "${src}/utils/nixpkgs.nix";
    # Make cross system packages.
    pkgs = import nixpkgs {
    inherit localSystem crossSystem;
    overlays = [
    # <- You may add your extra overlays here.
    ];
    };
    in
    # And now, with the resulting packages, we can describe the cross-compilation shell.
    pkgs.mkShell {
    # Native project dependencies like build utilities and additional routines
    # like container building, linters, etc.
    nativeBuildInputs = [
    pkgs.pkgsBuildHost.rust-bin.stable.latest.default
    # Will add some dependencies like libiconv.
    pkgs.pkgsBuildHost.rustBuildHostDependencies
    # Crates dependencies.
    pkgs.cargoDeps.openssl-sys
    # A simple script to create a docker image from the Cargo workspace member.
    (pkgs.pkgsBuildHost.writeShellApplication {
    name = "cargo-nix-docker-image";
    runtimeInputs = with pkgs.pkgsBuildHost; [
    nix
    docker
    ];
    text = let shellFile = ./shell.nix; in ''
    set -x
    binary_name=$1
    # Compile cargo binary
    cargo build --release
    # Copy this shell to the target dir
    cp ${shellFile} ./target/shell.nix
    # Build docker image from the compiled service
    image_archive=$(nix-build ./target/shell.nix -A dockerImage --argstr name "$binary_name")
    docker load <"$image_archive"
    '';
    })
    ];
    # Libraries essential to build the service binaries.
    buildInputs = with pkgs; [
    # Enable Rust cross-compilation support.
    rustCrossHook
    ];
    # Prettify shell prompt.
    shellHook = ''
    ${pkgs.crossBashPrompt}
    echo "Welcome to the Cargo docker images builder demo shell!"
    echo ""
    echo "Usage:"
    echo ""
    echo "$ cargo-nix-docker-image <executable-name>"
    echo ""
    echo "Have a nice day!"
    '';
    /* Service docker image definition
    Usage:
    ```shell
    cargo-nix-docker-image <workspace-member>
    ```
    */
    passthru.dockerImage = (
    {
    # Cargo workspace member name
    name
    , tag ? "latest"
    }:
    pkgs.pkgsBuildHost.dockerTools.buildLayeredImage {
    inherit tag name;

    contents = with pkgs; [
    coreutils
    bashInteractive
    dockerTools.caCertificates
    # Actual service binary compiled by Cargo
    (copyBinaryFromCargoBuild {
    inherit name;
    targetDir = ./.;
    buildInputs = [
    openssl.dev
    ];
    })
    # Utilites like ldd to help image debugging
    stdenv.cc.libc_bin
    ];

    config = {
    Cmd = [ name ];
    WorkingDir = "/";
    Expose = 8080;
    };
    }
    );
    }