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Diffstat (limited to 'nixos/tests/containers-imperative.nix')
-rw-r--r-- | nixos/tests/containers-imperative.nix | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/nixos/tests/containers-imperative.nix b/nixos/tests/containers-imperative.nix new file mode 100644 index 000000000000..8d100fedf78c --- /dev/null +++ b/nixos/tests/containers-imperative.nix @@ -0,0 +1,87 @@ +# Test for NixOS' container support. + +import ./make-test.nix ({ pkgs, ...} : { + name = "containers-imperative"; + meta = with pkgs.stdenv.lib.maintainers; { + maintainers = [ aristid aszlig eelco chaoflow ]; + }; + + machine = + { config, pkgs, ... }: + { imports = [ ../modules/installer/cd-dvd/channel.nix ]; + virtualisation.writableStore = true; + virtualisation.memorySize = 768; + virtualisation.pathsInNixDB = [ pkgs.stdenv ]; + }; + + testScript = + '' + # 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; + + # Stop and start (regression test for #4989) + $machine->succeed("nixos-container stop $id1"); + $machine->succeed("nixos-container start $id1"); + + # 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" + ); + ''; + +}) |