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diff --git a/content/documentation/development/miscellaneous_notes.md b/content/documentation/development/miscellaneous_notes.md deleted file mode 100644 index 5ead19d..0000000 --- a/content/documentation/development/miscellaneous_notes.md +++ /dev/null @@ -1,102 +0,0 @@ -+++ -title = "Miscellaneous notes" -weight = 20 -+++ - - -## Quirks about cargo2nix/rust in Nix - -If you use submodules in your crate (like `crdt` and `replication` in `garage_table`), you must list them in `default.nix` - -The Windows target does not work. it might be solvable through [overrides](https://github.com/cargo2nix/cargo2nix/blob/master/overlay/overrides.nix). Indeed, we pass `x86_64-pc-windows-gnu` but mingw need `x86_64-w64-mingw32` - -We have a simple [PR on cargo2nix](https://github.com/cargo2nix/cargo2nix/pull/201) that fixes critical bugs but the project does not seem very active currently. We must use [my patched version of cargo2nix](https://github.com/superboum/cargo2nix) to enable i686 and armv6l compilation. We might need to contribute to cargo2nix in the future. - - -## Nix - -Nix has no armv7 + musl toolchains but armv7l is backward compatible with armv6l. - -```bash -cat > $HOME/.awsrc <<EOF -export AWS_ACCESS_KEY_ID="xxx" -export AWS_SECRET_ACCESS_KEY="xxx" -EOF - -# source each time you want to send on the cache -source ~/.awsrc - -# copy garage build dependencies (and not only the output) -nix-build -nix-store -qR --include-outputs $(nix-instantiate default.nix) - | xargs nix copy --to 's3://nix?endpoint=garage.deuxfleurs.fr®ion=garage' - -# copy shell dependencies -nix-build shell.nix -A inputDerivation -nix copy $(nix-store -qR result/) --to 's3://nix?endpoint=garage.deuxfleurs.fr®ion=garage' -``` - -More example of nix-copy - -``` -# nix-build produces a result/ symlink -nix copy result/ --to 's3://nix?endpoint=garage.deuxfleurs.fr®ion=garage' - -# alternative ways to use nix copy -nix copy nixpkgs.garage --to ... -nix copy /nix/store/3rbb9qsc2w6xl5xccz5ncfhy33nzv3dp-crate-garage-0.3.0 --to ... -``` - - -Clear the cache: - -```bash -mc rm --recursive --force garage/nix/ -``` - ---- - -A desirable `nix.conf` for a consumer: - -```toml -substituters = https://cache.nixos.org https://nix.web.deuxfleurs.fr -trusted-public-keys = cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY= nix.web.deuxfleurs.fr:eTGL6kvaQn6cDR/F9lDYUIP9nCVR/kkshYfLDJf1yKs= -``` - -And now, whenever you run a command like: - -``` -nix-shell -nix-build -``` - -Our cache will be checked. - -### Some references about Nix - - - - https://doc.rust-lang.org/nightly/rustc/platform-support.html - - https://nix.dev/tutorials/cross-compilation - - https://nixos.org/manual/nix/unstable/package-management/s3-substituter.html - - https://fzakaria.com/2020/09/28/nix-copy-closure-your-nix-shell.html - - http://www.lpenz.org/articles/nixchannel/index.html - - -## Drone - -Do not try to set a build as trusted from the interface or the CLI tool, -your request would be ignored. Instead, directly edit the database (table `repos`, column `repo_trusted`). - -Drone can do parallelism both at the step and the pipeline level. At the step level, parallelism is restricted to the same runner. - -## Building Docker containers - -We were: - - Unable to use the official Docker plugin because - - it requires to mount docker socket in the container but it is not recommended - - you cant set the platform when building - - Unable to use buildah because it needs `CLONE_USERNS` capability - - Unable to use the kaniko plugin for Drone as we can't set the target platform - - Unable to use the kaniko container provided by Google as we can't run arbitrary logic: we need to put our secret in .docker/config.json. - -Finally we chose to build kaniko through nix and use it in a `nix-shell`. |