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gerrit-dev.monogon.dev / monogon / 378a4455aedda838f60c546e55199092f24952ed
commit378a4455aedda838f60c546e55199092f24952ed[log] [tgz]
authorLorenz Brun <lorenz@nexantic.com>Tue Jan 26 13:47:41 2021 +0100
committerLorenz Brun <lorenz@nexantic.com>Tue Jan 26 13:47:41 2021 +0100
treeaa78b858535224fe8c9b24c2ff7e9ed2c903080b
parent74e8e5c35fea1ec9ce13c8a2d16100bab45d42d9 [diff]
Add EROFS library

This adds a library to write EROFS filesystems. It supports most of the non-deprecated features the
filesystem supports other than extended inodes (which have no benefits for most use cases where EROFS would be
appropriate). EROFS's variable-length extent compression is partially implemented but it requires an LZ4
compressor with support for fixed-size output which Go's https://github.com/pierrec/lz4 doesn't have. This means
that VLE compression is currently not wired up.

This will be used later as a replacement for our current initramfs-based root filesystem.

Test Plan: Has both integration and some unit tests. Confirmed working for our whole rootfs.

X-Origin-Diff: phab/D692
GitOrigin-RevId: 8c52b45ea05c617c80047e99c04c2b63e1b60c7c
10 files changed
tree: aa78b858535224fe8c9b24c2ff7e9ed2c903080b
  1. build/
  2. intellij/
  3. metropolis/
  4. scripts/
  5. third_party/
  6. .bazelignore
  7. .bazelproject
  8. .bazelrc
  9. BUILD
  10. nogo_config.json
  11. README.md
  12. WORKSPACE
README.md

Monogon Source Monorepo

This is the main repository containing Monogon's public source code, including Metropolis.

Environment

We assume a Fedora host system provisioned using rW, and IntelliJ as the IDE.

For better reproducibility, all builds are executed in containers.

Usage

Spinning up: scripts/create_container.sh

Spinning down: scripts/destroy_container.sh

Running commands: scripts/run_in_container.sh <...>

Using bazel using a wrapper script: scripts/bin/bazel <...> (add to your local $PATH for convenience)

IntelliJ

This repository is compatible with the IntelliJ Bazel plugin. All commands run inside the container, and necessary paths are mapped into the container.

The following steps are necessary:

  • Install Google's Bazel plugin in IntelliJ.

  • Add the absolute path to your ~/.cache/bazel-nxt folder to your idea64.vmoptions (Help → Edit Custom VM Options) and restart IntelliJ:

    -Dbazel.bep.path=/home/leopold/.cache/bazel-nxt

  • Set "Bazel Binary Location" in Other Settings → Bazel Settings to the absolute path of scripts/bin/bazel. This is a wrapper that will execute Bazel inside the container.

  • Use File → Import Bazel project... to create a new project from .bazelproject.

After running the first sync, everything should now resolve in the IDE, including generated code.

It's strongly recommend to use our project presets for file watchers and other IDE features. Run this command and re-open the project in order to install them:

bazel run intellij/localconfig $(pwd)

Metropolis

Run a single node cluster

Launch the node:

bazel run //:launch

Run a kubectl command:

bazel run //metropolis/cli/dbg -- kubectl describe