nixery.dev uses the vnd.docker.container.image.v1 format, which is
recognized by the OCI [1] and originally defined by Docker [2]. The
config field in this image format, which this commit is about, is
even portable between the Docker and OCI formats (the Docker Golang
library embeds the OCI definition [3]).
The attribute names in what's called ImageConfig in [3] are specified as
PascalCase, which effectively means that the names Env and Cmd used by
nixery need to be capitalized. The lowercase variant is not causing a
lot of issues because most container tooling is written in Golang, which
allows case-insensitive matches when deserializing JSON. Languages that
parse strictly either miss the configuration values, or fail due to
unknown attributes. This commit capitalizes Cmd and Env to accomodate
strict parsers.
[1]: https://github.com/opencontainers/image-spec/blob/365fa41/media-types.md?plain=1#L70
[2]: https://github.com/moby/moby/blob/v20.10.8/image/spec/v1.2.md#image-json-description
[3]: https://github.com/opencontainers/image-spec/blob/365fa41/specs-go/v1/config.go#L24
Change-Id: Ibee597a64d36c008dea83a3b7a0d8e59b8287d0d
Signed-off-by: Markus Rudy <webmaster@burgerdev.de>
Co-authored-by: Paul Meyer <49727155+katexochen@users.noreply.github.com>
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11012
Autosubmit: lukegb <lukegb@tvl.fyi>
Reviewed-by: lukegb <lukegb@tvl.fyi>
Tested-by: BuildkiteCI
This is required because Go 1.18 is actually being deleted. I've
applied the formatting breakage that it introduces (such as breaking
comment formatting), because I can't be bothered to try and work
around broken Go stuff.
Change-Id: Ica7cee0d01228845d6a766079fef36df99a3da96
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9832
Autosubmit: tazjin <tazjin@tvl.su>
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
These packages are invalid in Nix, and worked around in nixpkgs with
underscores, but the underscores are invalid in the Docker registry
protocol.
We work around this by detecting this case and adding the underscore
to yield the correct package reference. There is no case where this
workaround can break something, as there can be no valid package
matching the regular expression.
This relates to https://github.com/tazjin/nixery/issues/158
Change-Id: I7990cdb534a8e86c2ceee2c589a2636af70a4a03
Reviewed-on: https://cl.tvl.fyi/c/depot/+/8531
Tested-by: BuildkiteCI
Autosubmit: tazjin <tazjin@tvl.su>
Reviewed-by: flokli <flokli@flokli.de>
Nixery's previous landing page was an mdBook that was basically
unmaintained and full of incorrect information. It also duplicated
some things (like nix-1p) which actually live elsewhere.
This commit removes the mdBook completely and reduces it down to a
simple TVL-style landing page. The landing page has been checked in
in its entirety because Nixery is frequently cloned through josh
without the entirety of depot, however the page has been created by
building it through depot's //web/tvl/template.
See also https://github.com/tazjin/nixery/issues/156
Change-Id: I20e1d58f1e6608377207e80345c169f7d92d3847
Reviewed-on: https://cl.tvl.fyi/c/depot/+/6930
Autosubmit: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
The latter has been deprecated in nixpkgs.
Relates to b/200
Change-Id: I42871ce3eb54ebf092909f033b43936b9610d982
Reviewed-on: https://cl.tvl.fyi/c/depot/+/6836
Autosubmit: tazjin <tazjin@tvl.su>
Reviewed-by: sterni <sternenseemann@systemli.org>
Tested-by: BuildkiteCI
Upstream nixpkgs removed a lot of aliases this time, so we needed to do
the following transformations. It's a real shame that aliases only
really become discoverable easily when they are removed.
* runCommandNoCC -> runCommand
* gmailieer -> lieer
We also need to work around the fact that home-manager hasn't catched
on to this rename.
* mysql -> mariadb
* pkgconfig -> pkg-config
This also affects our Nix fork which needs to be bumped.
* prometheus_client -> prometheus-client
* rxvt_unicode -> rxvt-unicode-unwrapped
* nix-review -> nixpkgs-review
* oauth2_proxy -> oauth2-proxy
Additionally, some Go-related builders decided to drop support for
passing the sha256 hash in directly, so we need to use the generic hash
arguments.
Change-Id: I84aaa225ef18962937f8616a9ff064822f0d5dc3
Reviewed-on: https://cl.tvl.fyi/c/depot/+/6792
Autosubmit: sterni <sternenseemann@systemli.org>
Tested-by: BuildkiteCI
Reviewed-by: grfn <grfn@gws.fyi>
Reviewed-by: flokli <flokli@flokli.de>
Reviewed-by: tazjin <tazjin@tvl.su>
Reviewed-by: wpcarro <wpcarro@gmail.com>
Discard string context in prepare-image.nix before parsing input read
with readFile with fromJSON. Required for compatibility with nix >2.3.
Change-Id: I3830707e80fd19a700551a15f1a96d2841d0b022
Reviewed-on: https://cl.tvl.fyi/c/depot/+/6696
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
Remove a race condition which appears when uploadHashLayer is called
with the same key from multiple threads simultaneously. This can
easily happen when the same image path is requested by multiple
clients at the same time. When it does, a 500 status is returned and
the following error message is logged:
{
"context": {
"filePath": "github.com/google/nixery/builder/builder.go",
"lineNumber": 440,
"functionName": "github.com/google/nixery/builder.uploadHashLayer"
},
"error": "rename /var/lib/nixery/staging/<hash> /var/lib/nixery/layers/<hash>: no such file or directory",
"eventTime": "...",
"layer": "<hash>",
"message": "failed to move layer from staging",
...
}
To solve this issue, introduce a mutex keyed on the uploaded hash and
move all layer caching into uploadHashLayer. This could additionally
provide a small performance benefit when an already built image is
requested and NIXERY_PKGS_PATH is set, since symlink layers and config
layers are now also cached.
Change-Id: I50788a7ec7940cb5e5760f244692e361019a9bb7
Reviewed-on: https://cl.tvl.fyi/c/depot/+/6695
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
Since the source of nix-1p is checked in under //nix/nix-1p, we should
use it from there if Nixery is being built inside of depot.
Change-Id: Iddd54f7b93b398b2f909db6ee105366a9914a2ac
Reviewed-on: https://cl.tvl.fyi/c/depot/+/5882
Reviewed-by: sterni <sternenseemann@systemli.org>
Tested-by: BuildkiteCI
Autosubmit: tazjin <tazjin@tvl.su>
People occasionally ask what the current nixpkgs commit is on
nixery.dev (see e.g. https://github.com/tazjin/nixery/issues/153).
With this change, the commit is displayed on nixery.dev if Nixery is
built for the TVL deployment.
Change-Id: I795220214db5a367a126c9b4bd03754e9f144940
Reviewed-on: https://cl.tvl.fyi/c/depot/+/5881
Reviewed-by: sterni <sternenseemann@systemli.org>
Tested-by: BuildkiteCI
Autosubmit: tazjin <tazjin@tvl.su>
This exports the `:/tools/nixery` subtree to Github automatically
after merges to `canon`.
Due to the way the project was imported this continues the existing
git history in the external repository.
Change-Id: Ie871c14ad5d8f1019f8be86adecbe9b130ffb01a
Reviewed-on: https://cl.tvl.fyi/c/depot/+/5667
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
Nixery is going to gain a new binary (used for building images without
a registry server); to prepare for this the server binary has moved to
cmd/server and the Nix build logic has been updated to wrap this
binary and set the required environment variables.
Change-Id: I9b4f49f47872ae76430463e2fcb8f68114070f72
Reviewed-on: https://cl.tvl.fyi/c/depot/+/5603
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
This will be required for making a standalone, Nixery-style image
builder function usable from Nix.
Change-Id: I5e36348bd4c32d249d56f6628cd046916691319f
Reviewed-on: https://cl.tvl.fyi/c/depot/+/5601
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
Cleans up a whole bunch of things I wanted to get out of the door
right away:
* depot internal references to //third_party/nixery have been replaced
with //tools/nixery
* cleaned up files from Github
* fixed SPDX & Copyright headers
* code formatting and inclusion in //tools/depotfmt checks
Change-Id: Iea79f0fdf3aa04f71741d4f4032f88605ae415bb
Reviewed-on: https://cl.tvl.fyi/c/depot/+/5486
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
Autosubmit: tazjin <tazjin@tvl.su>
This does not fully change the build structure of Nixery to be
depot-compatible yet, but should allow most targets to be built in
depot CI.
This contains some hacks to work around surface incompatibilities
which we'll clear away later.
Change-Id: I84e7734334abbe299983956f528c0897f49fa8c2
Reviewed-on: https://cl.tvl.fyi/c/depot/+/5485
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
This absorbs a josh-filtered Nix subtree into depot, at
//tools/nixery.
This subtree was created through `josh-filter ':prefix=tools/nixery'`,
which allows a filter on tools/nixery to yield the same commit hashes
as the original Nixery repository (allowing for history continuity).
Change-Id: Icc1a99bf1248226b91f437b0a90361d36fb0d327
Two minor "quality of life" improvements:
- automatically set SSL_CERT_FILE environment variable,
so that programs relying on OpenSSL for certificate
validation can actually validate certificates
(the certificates are included no matter what since
we add the "cacert" package to all iamges)
- if the requested image includes an interactive shell
(e.g. if it includes the "shell" metapackage), set
the image Cmd to "bash", which allows to execute
"docker run nixery.dev/shell" and get a shell)
I'm happy to split this PR in two if you'd like, but
since both features touch the Config structure and are
rather small, I thought it would make sense to bundle
them together.
These instructions were not up-to-date (they didn't mention
the different storage backends, and some variables were
tagged as optional while they were mandatory). With this
update, they should (hopefully) be more accurate! :)
I also added instructions if someone wants to run Nixery
outside of the container image (I found it convenient when
working on Nixery's code).
This is required by common patterns in shell scripts.
There are some caveats around this. Adding logic to filter whether
coreutils is included in an image would slow down the Nix evaluation,
so the link is currently created even in cases where it doesn't point
to anything.
Fixes#109
After the discussion in #116, this stores the blob content types
in extended attributes when using the filesystem backend.
If the underlying filesystem doesn't support extended attributes,
storing blobs won't work; also, if extended attributes get removed,
blobs won't be served anymore. We can relax this behavior if
needed (i.e. log errors but still accept to store or serve blobs).
However, since the Docker Engine (and possibly other container
engines) won't accept to pull images from a registry that doesn't
use correct content types for manifest files, it could be argued
that it's better to give a hard fail. (Otherwise, the container
engine gives cryptic error messages like "missing signature key".)
I can change that behavior (and log errors but still store/serve
blobs to the filesystem) if you think it's better.
With https://github.com/google/nixery/pull/127, nixery will use extended
attributes to store metadata (when using local storage).
Right now, our integration test mounts a tmpfs to /var/cache/nixery.
However, *user* xattrs aren't supported with tmpfs [1], so setting
xattrs would fail.
To workaround this, use a folder in the current working directory and
hope it's backed by something supporting user xattrs (which is the case
for GitHub Actions).
[1]: https://man7.org/linux/man-pages/man5/tmpfs.5.html#NOTES
Drops the go2nix configuration in favour of pkgs.buildGoModule.
Note that the go.sum file is bloated by issues with cyclic
dependencies in some Google projects, but this large number of
dependencies is not actually built.
* remove a step that was not supposed to be committed ("Do we have
Docker?")
* remove setup of old temporary storage directory (now done in
integration script test instead)
* skip creation of out-link for initial Nixery build (to avoid
cache-busting on the second build)
In case the `GOOGLE_APPLICATION_CREDENTIALS` environment variable is not
set, a redirect to storage.googleapis.com is issued, which means the
underlying bucket objects need to be publicly accessible.
This wasn't really obvious until now, so further clarify it.
This copies the integration tests from `.travis.yaml` into a script,
documents the assumptions it makes, and wires it into GitHub Actions.
Contrary to the travis version, we don't use Nixery's GCS backend, as
handing out access to the bucket used, especially for PRs, needs to be
done carefully.
Adding back GCS to the integration test can be done at a later point,
either by using a mock server, or by only exposing the credentials for
master builds (and have the test script decide on whether
GOOGLE_APPLICATION_CREDENTIALS is set or not).
The previous travis version had some complicated post-mortem log
gathering - instead of doing this, we can just `docker run` nixery, but
fork it into the background with the shell - causing it to still be able
to log its output as it's running.
An additional `--rm` is appended, so the container gets cleaned up on
termination - this allows subsequent runs on non-CI infrastructure (like
developer laptops), without having to manually clean up containers.
Fixes#119.
We don't intend to label, authenticate or whatever with the
GITHUB_TOKEN, so there's not really a reason to give any broader
permissions than the defaults.
When serving a manifest, it is important to set the content-type
correctly (otherwise pulling an image is likely to give a cryptic
error message, "Error response from daemon: missing signature key").
This makes sure that we set the content-type properly for both
manifests and layers.
