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Adds a test for nss preload mechanism

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This tests for the fix implemented in #5224

Signed-off-by: Arthur Gautier <baloo@superbaloo.net>
This commit is contained in:
Arthur Gautier 2021-10-07 16:58:15 +00:00
parent 158fa6870f
commit e33f74495b
2 changed files with 129 additions and 0 deletions
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6
flake.nix
View file

@ -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;

123
tests/nss-preload.nix Normal file
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@ -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
""")
'';
})