Calling `eval-config.nix` without a `system` from a Nix flake fails with
`error: attribute 'currentSystem' missing` since #230523. Setting
`system = null` removes the use of `currentSystem` and instead uses the
value from the `nixpkgs` module.
Prior to this patch:
$ nix-instantiate --eval -E '
> with import ./. {
> localSystem.config = "aarch64-unknown-linux-musl";
> };
> (nixos {}).config.nixpkgs.localSystem.config
> '
"aarch64-unknown-linux-gnu"
Because only the system triple was being passed through, the Musl part
of the system specification was lost. This patch fixes various
occurrences of NixOS evaluation when a Nixpkgs evaluation is already
available, to pass through the full elaborated system attribute set,
to avoid this loss of precision.
We need to move NixOS containers somewhere else so these don't clash
with Podman, Skopeo & other container software in the libpod &
cri-o/cri-u/libcontainer ecosystems.
The state directory move is not strictly a requirement but is good for
consistency.
The `nix.*` options, apart from options for setting up the
daemon itself, currently provide a lot of setting mappings
for the Nix daemon configuration. The scope of the mapping yields
convience, but the line where an option is considered essential
is blurry. For instance, the `extra-sandbox-paths` mapping is
provided without its primary consumer, and the corresponding
`sandbox-paths` option is also not mapped.
The current system increases the maintenance burden as maintainers have to
closely follow upstream changes. In this case, there are two state versions
of Nix which have to be maintained collectively, with different options
avaliable.
This commit aims to following the standard outlined in RFC 42[1] to
implement a structural setting pattern. The Nix configuration is encoded
at its core as key-value pairs which maps nicely to attribute sets, making
it feasible to express in the Nix language itself. Some existing options are
kept such as `buildMachines` and `registry` which present a simplified interface
to managing the respective settings. The interface is exposed as `nix.settings`.
Legacy configurations are mapped to their corresponding options under `nix.settings`
for backwards compatibility.
Various options settings in other nixos modules and relevant tests have been
updated to use structural setting for consistency.
The generation and validation of the configration file has been modified to
use `writeTextFile` instead of `runCommand` for clarity. Note that validation
is now mandatory as strict checking of options has been pushed down to the
derivation level due to freeformType consuming unmatched options. Furthermore,
validation can not occur when cross-compiling due to current limitations.
A new option `publicHostKey` was added to the `buildMachines`
submodule corresponding to the base64 encoded public host key settings
exposed in the builder syntax. The build machine generation was subsequently
rewritten to use `concatStringsSep` for better performance by grouping
concatenations.
[1] - https://github.com/NixOS/rfcs/blob/master/rfcs/0042-config-option.md
the default hasn't been changed since 2009
this can improve our test performances
nixos/tests: remove explicit memorySize <1024
1024MiB is now the default
pathsInNixDB isn't a very accurate name when a Nix store image is
built (virtualisation.useNixStoreImage); rename it to additionalPaths,
which should be general enough to cover both cases.
Since 4f6df27aee, nix.useSandbox defaults
to true which causes the Nix build within the containers-imperative test
to fail while trying to hardlink files into the chroot:
link("/nix/store/foo", "/nix/store/bar.drv.chroot/nix/store/foo")
= -1 EPERM (Operation not permitted)
The reason this happens is that the hosts store is mounted using 9p and
an overlayfs is mounted on top, so even if we would disable the tmpfs
for the upper directory the hardlink would still cross filesystem
boundaries, which then fails with the above error code.
I haven't yet seen any other test which fails in a similar way, which
might be because building within VM tests is not very common and the
installer tests build in a separate store, so they're not affected.
Signed-off-by: aszlig <aszlig@nix.build>
Issue: https://github.com/NixOS/nix/issues/2324
Cc: @aristidb, @edolstra, @chaoflow, @kampfschlaefer
This reverts commit 095fe5b43d.
Pointless renames considered harmful. All they do is force people to
spend extra work updating their configs for no benefit, and hindering
the ability to switch between unstable and stable versions of NixOS.
Like, what was the value of having the "nixos." there? I mean, by
definition anything in a NixOS module has something to do with NixOS...
While building the container there are a few occasions where stdenvNoCC
is used underneath. During the last staging merge, some change now tries
to build texinfo during the test while building stdenvNoCC.
With this change, I'm adding stdenvNoCC to the closure to make sure that
even when we have future stdenv changes, it doesn't break (well, except
if we do have another variation like stdenvNoCC that overrides stdenv).
I haven't bisected the exact change, but I'd suspect that it could be
one of the commits in #39457.
This fixes the test and it no longer fails with the following error:
error: unable to download 'http://ftpmirror.gnu.org/texinfo/texinfo-6.5.tar.xz': Couldn't resolve host name (6)
builder for '/nix/store/r7sf1wjbnimwgnv276jh59nfnzw40x30-texinfo-6.5.tar.xz.drv' failed with exit code 1
cannot build derivation '/nix/store/5w1pv788ayi1wahyy76i90yqv96ai4h5-texinfo-6.5.drv': 1 dependencies couldn't be built
cannot build derivation '/nix/store/cnsfkf0j5xmm14zzm5a3a66pz66gbc82-stdenv-linux.drv': 1 dependencies couldn't be built
cannot build derivation '/nix/store/11kkhk57ic8kfd7g197sqwgd0pzqfjhl-nixos-system-foo-0-18.09pre-git.drv': 1 dependencies couldn't be built
error: build of '/nix/store/11kkhk57ic8kfd7g197sqwgd0pzqfjhl-nixos-system-foo-0-18.09pre-git.drv' failed
/run/current-system/sw/bin/nixos-container: failed to build initial container configuration
Signed-off-by: aszlig <aszlig@nix.build>
Cc: @aristidb, @edolstra, @chaoflow, @kampfschlaefer
The commit c6f7d43678 changed the system
attribute to be below config.nixpkgs.localSystem, but the test still
uses the old attribute.
I have not tested whether the test actually succeeds but just checked
whether evaluation works and it evaluates successfully now.
Signed-off-by: aszlig <aszlig@nix.build>
Just removing the system argument because it doesn't exist (it's
actually config.nixpkgs.system, which we're already using). We won't get
an error anyway if we're not actually using it, so this is just an
aesthetics fix.
Signed-off-by: aszlig <aszlig@redmoonstudios.org>
Make sure that we always have everything available within the store of
the VM, so let's evaluate/build the test container fully on the host
system and propagate all dependencies to the VM.
This way, even if there are additional default dependencies that come
with containers in the future we should be on the safe side as these
dependencies should now be included for the test as well.
Signed-off-by: aszlig <aszlig@redmoonstudios.org>
Cc: @kampfschlaefer, @edolstra
