sneak
42643be662
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The program is now sww, built from cmd/sww, with two modes: sww rproxy and sww discriminator. servewaf becomes discriminator everywhere it names that daemon: the package (internal/discriminator), its types, functions, files, the discriminator_line log field, and its docs and tests. smallwebwaf is left only where sneak's directive allows it: the documents' product name, the git.eeqj.de/sneak/smallwebwaf URLs, and the Go module path sneak.berlin/go/smallwebwaf. Everywhere else a name containing it takes the sww form: the package (internal/sww), metric names (sww_*), the X-Sww-* headers, the /_sww/ admin endpoints, the OS user, and the state and rules directories. The SWWAF_ environment variables take the SWW_ form. No logic changes. make check passes. Model: deepseek-v4-pro
36 lines
1.6 KiB
Markdown
36 lines
1.6 KiB
Markdown
# What the image holds
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The contents of the `smallwebwaf` image, and how each part is pinned. The image
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runs `rproxy` by default, or `discriminator` with `SWW_COMMAND=discriminator`.
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"Deployment" in [`SPEC.md`](../SPEC.md) says why each part is there and why it
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is pinned that way.
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## Contents
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- Ubuntu 26.04 LTS, pinned by digest.
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- `ca-certificates`, `nix-bin` and `runit` from Ubuntu's archive.
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- Nix, with nixpkgs `nixos-26.05.11045.774debe7a0d1` set up for root as
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`nixpkgs`. No Nix daemon; `build-users-group =` in `/etc/nix/nix.conf`. Root's
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Nix profile, `/nix/var/nix/profiles/default/bin`, last on the `PATH`.
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Unpacked, nixpkgs takes about 500 MiB.
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- `runsvinit` as the entrypoint, built from `github.com/peterbourgon/runsvinit`
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at a fixed commit hash.
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- The `sww` binary, and the user `sww` (uid and gid 65532).
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- The service directory `/etc/service/sww`, with the `run` script
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`share/sww.run`.
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- `/var/lib/sww` for `discriminator`'s state files, and `/etc/sww/rules.d` with
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the default rule file `share/rules.d/00-default.rules`.
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- `EXPOSE 8080`, and the `HEALTHCHECK` that runs `sww healthcheck`.
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## Pins
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- Ubuntu's packages are not pinned: they come from the live archive, whose
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packages change with every update.
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- nixpkgs: the release file `nixexprs.tar.xz` of
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`nixos-26.05.11045.774debe7a0d1` on `releases.nixos.org`, named with its
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SHA-256 hash.
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- `runsvinit`: the archived repository, unchanged since 2015, at its last commit
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(`b4b2c78`, eight commits after `v2.0.0`), by commit hash, with a `go.mod` the
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build writes.
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- The Go image that builds `sww`: by digest.
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