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|
# Test for NixOS' container support.
import ./make-test.nix ({ pkgs, ...} : {
name = "containers-imperative";
meta = with pkgs.stdenv.lib.maintainers; {
maintainers = [ aristid aszlig eelco kampfschlaefer ];
};
machine =
{ config, pkgs, lib, ... }:
{ imports = [ ../modules/installer/cd-dvd/channel.nix ];
# XXX: Sandbox setup fails while trying to hardlink files from the host's
# store file system into the prepared chroot directory.
nix.useSandbox = false;
nix.binaryCaches = []; # don't try to access cache.nixos.org
virtualisation.writableStore = true;
virtualisation.memorySize = 1024;
# Make sure we always have all the required dependencies for creating a
# container available within the VM, because we don't have network access.
virtualisation.pathsInNixDB = let
emptyContainer = import ../lib/eval-config.nix {
inherit (config.nixpkgs.localSystem) system;
modules = lib.singleton {
containers.foo.config = {
system.stateVersion = "18.03";
};
};
};
in with pkgs; [
stdenv stdenvNoCC emptyContainer.config.containers.foo.path
libxslt desktop-file-utils texinfo docbook5 libxml2
docbook_xsl_ns xorg.lndir documentation-highlighter
];
};
testScript = let
tmpfilesContainerConfig = pkgs.writeText "container-config-tmpfiles" ''
{
systemd.tmpfiles.rules = [ "d /foo - - - - -" ];
systemd.services.foo = {
serviceConfig.Type = "oneshot";
script = "ls -al /foo";
wantedBy = [ "multi-user.target" ];
};
}
''; in
''
# Make sure we have a NixOS tree (required by ‘nixos-container create’).
$machine->succeed("PAGER=cat nix-env -qa -A nixos.hello >&2");
# Create some containers imperatively.
my $id1 = $machine->succeed("nixos-container create foo --ensure-unique-name");
chomp $id1;
$machine->log("created container $id1");
my $id2 = $machine->succeed("nixos-container create foo --ensure-unique-name");
chomp $id2;
$machine->log("created container $id2");
die if $id1 eq $id2;
# Put the root of $id2 into a bind mount.
$machine->succeed(
"mv /var/lib/containers/$id2 /id2-bindmount",
"mount --bind /id2-bindmount /var/lib/containers/$id1"
);
my $ip1 = $machine->succeed("nixos-container show-ip $id1");
chomp $ip1;
my $ip2 = $machine->succeed("nixos-container show-ip $id2");
chomp $ip2;
die if $ip1 eq $ip2;
# Create a directory and a file we can later check if it still exists
# after destruction of the container.
$machine->succeed(
"mkdir /nested-bindmount",
"echo important data > /nested-bindmount/dummy",
);
# Create a directory with a dummy file and bind-mount it into both
# containers.
foreach ($id1, $id2) {
my $importantPath = "/var/lib/containers/$_/very/important/data";
$machine->succeed(
"mkdir -p $importantPath",
"mount --bind /nested-bindmount $importantPath"
);
}
# Start one of them.
$machine->succeed("nixos-container start $id1");
# Execute commands via the root shell.
$machine->succeed("nixos-container run $id1 -- uname") =~ /Linux/ or die;
# Execute a nix command via the root shell. (regression test for #40355)
$machine->succeed("nixos-container run $id1 -- nix-instantiate -E 'derivation { name = \"empty\"; builder = \"false\"; system = \"false\"; }'");
# Stop and start (regression test for #4989)
$machine->succeed("nixos-container stop $id1");
$machine->succeed("nixos-container start $id1");
# Ensure tmpfiles are present
$machine->log("creating container tmpfiles");
$machine->succeed("nixos-container create tmpfiles --config-file ${tmpfilesContainerConfig}");
$machine->log("created, starting…");
$machine->succeed("nixos-container start tmpfiles");
$machine->log("done starting, investigating…");
$machine->succeed("echo \$(nixos-container run tmpfiles -- systemctl is-active foo.service) | grep -q active;");
$machine->succeed("nixos-container destroy tmpfiles");
# Execute commands via the root shell.
$machine->succeed("nixos-container run $id1 -- uname") =~ /Linux/ or die;
# Destroy the containers.
$machine->succeed("nixos-container destroy $id1");
$machine->succeed("nixos-container destroy $id2");
$machine->succeed(
# Check whether destruction of any container has killed important data
"grep -qF 'important data' /nested-bindmount/dummy",
# Ensure that the container path is gone
"test ! -e /var/lib/containers/$id1"
);
'';
})
|