blumeops/containers/nettest/default.nix
Erich Blume 695089499e Nix container build for nettest (#214)
## Summary
- Add `containers/nettest/default.nix` using `dockerTools.buildLayeredImage` with curl, jq, dnsutils, cacert, and bash — equivalent to the existing Dockerfile
- Update `container-tag-and-release` to require `--nix` or `--dockerfile` flag when both build types exist for a container
- Update `container-list` to show `[dockerfile+nix]` label when both exist

## Deployment and Testing
- [ ] SSH to ringtail, run `nix build -f containers/nettest/default.nix -o result` to verify the nix expression builds
- [ ] Tag `nettest-nix-v1.0.0`, confirm `build-container-nix` workflow runs on `nix-container-builder` runner and pushes to registry
- [ ] Smoke test on ringtail k3s: `kubectl run nettest --image=registry.ops.eblu.me/blumeops/nettest:v1.0.0 --restart=Never && kubectl logs nettest`
- [ ] Verify `mise run container-list` shows `[dockerfile+nix]` for nettest
- [ ] Verify `mise run container-tag-and-release nettest v1.1.0` prompts for build type

Reviewed-on: https://forge.ops.eblu.me/eblume/blumeops/pulls/214
2026-02-19 08:42:58 -08:00

39 lines
873 B
Nix

# Nix-built nettest container
# Equivalent to the Dockerfile: curl, jq, bind (nslookup), ca-certs, bash
# Built with dockerTools.buildLayeredImage for efficient layer caching
{ pkgs ? import <nixpkgs> { } }:
let
testScript = ./test-connectivity.sh;
tools = pkgs.buildEnv {
name = "nettest-tools";
paths = [
pkgs.curl
pkgs.jq
pkgs.dnsutils # provides nslookup, dig
pkgs.cacert
pkgs.coreutils
pkgs.hostname
pkgs.bashInteractive
];
};
in
pkgs.dockerTools.buildLayeredImage {
name = "blumeops/nettest";
tag = "latest";
contents = [ tools ];
extraCommands = ''
cp ${testScript} test-connectivity.sh
chmod +x test-connectivity.sh
'';
config = {
Entrypoint = [ "/bin/bash" "/test-connectivity.sh" ];
Env = [
"SSL_CERT_FILE=${pkgs.cacert}/etc/ssl/certs/ca-bundle.crt"
];
};
}