From e33f74495b19a9134e1f7fd5b69d914ffc8a183e Mon Sep 17 00:00:00 2001 From: Arthur Gautier Date: Thu, 7 Oct 2021 16:58:15 +0000 Subject: [PATCH] Adds a test for nss preload mechanism This tests for the fix implemented in #5224 Signed-off-by: Arthur Gautier --- flake.nix | 6 +++ tests/nss-preload.nix | 123 ++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 129 insertions(+) create mode 100644 tests/nss-preload.nix diff --git a/flake.nix b/flake.nix index 26a83e64c..2d0c44889 100644 --- a/flake.nix +++ b/flake.nix @@ -444,6 +444,12 @@ inherit (self) overlay; }; + tests.nssPreload = (import ./tests/nss-preload.nix rec { + system = "x86_64-linux"; + inherit nixpkgs; + inherit (self) overlay; + }); + tests.githubFlakes = (import ./tests/github-flakes.nix rec { system = "x86_64-linux"; inherit nixpkgs; diff --git a/tests/nss-preload.nix b/tests/nss-preload.nix new file mode 100644 index 000000000..2610d2b30 --- /dev/null +++ b/tests/nss-preload.nix @@ -0,0 +1,123 @@ +{ nixpkgs, system, overlay }: + +with import (nixpkgs + "/nixos/lib/testing-python.nix") { + inherit system; + extraConfigurations = [ { nixpkgs.overlays = [ overlay ]; } ]; +}; + +makeTest ( + +rec { + name = "nss-preload"; + + nodes = { + http_dns = { lib, pkgs, config, ... }: { + networking.firewall.enable = false; + networking.interfaces.eth1.ipv6.addresses = lib.mkForce [ + { address = "fd21::1"; prefixLength = 64; } + ]; + networking.interfaces.eth1.ipv4.addresses = lib.mkForce [ + { address = "192.168.0.1"; prefixLength = 24; } + ]; + + services.unbound = { + enable = true; + enableRootTrustAnchor = false; + settings = { + server = { + interface = [ "192.168.0.1" "fd21::1" "::1" "127.0.0.1" ]; + access-control = [ "192.168.0.0/24 allow" "fd21::/64 allow" "::1 allow" "127.0.0.0/8 allow" ]; + local-data = [ + ''"example.com. IN A 192.168.0.1"'' + ''"example.com. IN AAAA fd21::1"'' + ''"tarballs.nixos.org. IN A 192.168.0.1"'' + ''"tarballs.nixos.org. IN AAAA fd21::1"'' + ]; + }; + }; + }; + + services.nginx = { + enable = true; + virtualHosts."example.com" = { + root = pkgs.runCommand "testdir" {} '' + mkdir "$out" + echo hello world > "$out/index.html" + ''; + }; + }; + }; + + # client consumes a remote resolver + client = { lib, nodes, pkgs, ... }: { + networking.useDHCP = false; + networking.nameservers = [ + (lib.head nodes.http_dns.config.networking.interfaces.eth1.ipv6.addresses).address + (lib.head nodes.http_dns.config.networking.interfaces.eth1.ipv4.addresses).address + ]; + networking.interfaces.eth1.ipv6.addresses = [ + { address = "fd21::10"; prefixLength = 64; } + ]; + networking.interfaces.eth1.ipv4.addresses = [ + { address = "192.168.0.10"; prefixLength = 24; } + ]; + + nix.sandboxPaths = lib.mkForce []; + nix.binaryCaches = lib.mkForce []; + nix.useSandbox = lib.mkForce true; + }; + }; + + nix-fetch = pkgs.writeText "fetch.nix" '' + derivation { + # This derivation is an copy from what is available over at + # nix.git:corepkgs/fetchurl.nix + builder = "builtin:fetchurl"; + + # We're going to fetch data from the http_dns instance created before + # we expect the content to be the same as the content available there. + # ``` + # $ nix-hash --type sha256 --to-base32 $(echo "hello world" | sha256sum | cut -d " " -f 1) + # 0ix4jahrkll5zg01wandq78jw3ab30q4nscph67rniqg5x7r0j59 + # ``` + outputHash = "0ix4jahrkll5zg01wandq78jw3ab30q4nscph67rniqg5x7r0j59"; + outputHashAlgo = "sha256"; + outputHashMode = "flat"; + + name = "example.com"; + url = "http://example.com"; + + unpack = false; + executable = false; + + system = "builtin"; + + preferLocalBuild = true; + + impureEnvVars = [ + "http_proxy" "https_proxy" "ftp_proxy" "all_proxy" "no_proxy" + ]; + + urls = [ "http://example.com" ]; + } + ''; + + testScript = { nodes, ... }: '' + http_dns.wait_for_unit("nginx") + http_dns.wait_for_open_port(80) + http_dns.wait_for_unit("unbound") + http_dns.wait_for_open_port(53) + + client.start() + client.wait_for_unit('multi-user.target') + + with subtest("can fetch data from a remote server outside sandbox"): + client.succeed("nix --version >&2") + client.succeed("curl -vvv http://example.com/index.html >&2") + + with subtest("nix-build can lookup dns and fetch data"): + client.succeed(""" + nix-build ${nix-fetch} >&2 + """) + ''; +})