sneak
dfb2948160
check / check (push) Successful in 3m29s
The final image stage now apt-gets ca-certificates, nix-bin and runit from the archive the image's own sources name, with no snapshot and no hash check of the package lists. The borrowed CA bundle is dropped: the archive is reached over plain HTTP, so the install needs none. The Ubuntu base image stays pinned by digest, and every other pin is kept. SPEC.md and docs/image.md no longer describe a snapshot. Model: deepseek-v4-pro
38 lines
1.7 KiB
Markdown
38 lines
1.7 KiB
Markdown
# What the image holds
|
|
|
|
The contents of the `smallwebwaf` image, and how each part is pinned. The image
|
|
runs `rproxy` by default, or `servewaf` with `SMALLWEBWAF_COMMAND=servewaf`.
|
|
"Deployment" in [`SPEC.md`](../SPEC.md) says why each part is there and why it
|
|
is pinned that way.
|
|
|
|
## Contents
|
|
|
|
- Ubuntu 26.04 LTS, pinned by digest.
|
|
- `ca-certificates`, `nix-bin` and `runit` from Ubuntu's normal mirrors, the
|
|
live archive, not a dated snapshot.
|
|
- Nix, with nixpkgs `nixos-26.05.11045.774debe7a0d1` set up for root as
|
|
`nixpkgs`. No Nix daemon; `build-users-group =` in `/etc/nix/nix.conf`. Root's
|
|
Nix profile, `/nix/var/nix/profiles/default/bin`, last on the `PATH`.
|
|
Unpacked, nixpkgs takes about 500 MiB.
|
|
- `runsvinit` as the entrypoint, built from `github.com/peterbourgon/runsvinit`
|
|
at a fixed commit hash.
|
|
- The `smallwebwaf` binary, and the user `smallwebwaf` (uid and gid 65532).
|
|
- The service directory `/etc/service/smallwebwaf`, with the `run` script
|
|
`share/smallwebwaf.run`.
|
|
- `/var/lib/smallwebwaf` for `servewaf`'s state files, and
|
|
`/etc/smallwebwaf/rules.d` with the default rule file
|
|
`share/rules.d/00-default.rules`.
|
|
- `EXPOSE 8080`, and the `HEALTHCHECK` that runs `smallwebwaf healthcheck`.
|
|
|
|
## Pins
|
|
|
|
- Ubuntu's packages are not pinned: they come from the live archive, whose
|
|
packages change with every update.
|
|
- nixpkgs: the release file `nixexprs.tar.xz` of
|
|
`nixos-26.05.11045.774debe7a0d1` on `releases.nixos.org`, named with its
|
|
SHA-256 hash.
|
|
- `runsvinit`: the archived repository, unchanged since 2015, at its last commit
|
|
(`b4b2c78`, eight commits after `v2.0.0`), by commit hash, with a `go.mod` the
|
|
build writes.
|
|
- The Go image that builds `smallwebwaf`: by digest.
|