Erich Blume
5dbdbf7cbe
Nix builds now require an explicit version = "..." in default.nix — no implicit nixpkgs eval fallback. Also removes nettest (outgrown) and updates all doc/task references. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
91 lines
3.1 KiB
Markdown
91 lines
3.1 KiB
Markdown
---
|
|
title: Dagger
|
|
modified: 2026-03-06
|
|
tags:
|
|
- reference
|
|
- ci-cd
|
|
- dagger
|
|
---
|
|
|
|
# Dagger
|
|
|
|
Build engine for BlumeOps CI/CD pipelines. Replaces shell-based build scripts with Python functions that run identically locally and in CI.
|
|
|
|
## Quick Reference
|
|
|
|
| Property | Value |
|
|
|----------|-------|
|
|
| **Module** | `blumeops-ci` |
|
|
| **Engine Version** | v0.20.1 |
|
|
| **SDK** | Python |
|
|
| **Source** | `.dagger/src/blumeops_ci/main.py` |
|
|
| **Config** | `dagger.json` |
|
|
|
|
## Functions
|
|
|
|
| Function | Signature | Description |
|
|
|----------|-----------|-------------|
|
|
| `build` | `(src, container_name) → Container` | Build a container from `containers/<name>/Dockerfile` |
|
|
| `publish` | `(src, container_name, version, registry?) → str` | Build and push to registry (default: `registry.ops.eblu.me`) |
|
|
| `build_nix` | `(src, container_name) → File` | Build a nix container from `containers/<name>/default.nix`, return docker-archive tarball |
|
|
| `nix_version` | `(package) → str` | Extract the version of a nixpkgs package |
|
|
| `build_docs` | `(src, version) → File` | Build Quartz docs site, return docs tarball |
|
|
| `flake_lock` | `(src, flake_path?) → File` | Resolve flake inputs, return updated `flake.lock` |
|
|
| `flake_update` | `(src, flake_path?) → File` | Update all flake inputs to latest, return `flake.lock` |
|
|
|
|
## CLI Examples
|
|
|
|
```bash
|
|
# Build a container
|
|
dagger call build --src=. --container-name=devpi
|
|
|
|
# Drop into container shell for inspection
|
|
dagger call build --src=. --container-name=devpi terminal
|
|
|
|
# Debug a failure interactively
|
|
dagger call --interactive build --src=. --container-name=devpi
|
|
|
|
# Publish a container to zot
|
|
dagger call publish --src=. --container-name=devpi --version=v1.1.0
|
|
|
|
# Build a nix container (no local nix required)
|
|
dagger call build-nix --src=. --container-name=ntfy export --path=./ntfy.tar.gz
|
|
|
|
# Check a nixpkgs package version
|
|
dagger call nix-version --package=authentik
|
|
|
|
# Build docs tarball locally
|
|
dagger call build-docs --src=. --version=dev export --path=./docs-dev.tar.gz
|
|
|
|
# Debug a docs build failure
|
|
dagger call --interactive build-docs --src=. --version=dev
|
|
|
|
# Update all ringtail flake inputs
|
|
dagger call flake-update --src=. --flake-path=nixos/ringtail \
|
|
export --path=nixos/ringtail/flake.lock
|
|
```
|
|
|
|
## Secrets
|
|
|
|
Dagger has a first-class `Secret` type — values are never logged or cached. Pass secrets from environment variables using the `env:VAR` syntax:
|
|
|
|
```bash
|
|
dagger call release-docs \
|
|
--src=. --version=v1.6.0 \
|
|
--forgejo-token=env:FORGEJO_TOKEN \
|
|
--argocd-token=env:ARGOCD_TOKEN
|
|
```
|
|
|
|
In [[forgejo]] Actions, secrets are injected as env vars. Locally, mise tasks call `op read` to populate them.
|
|
|
|
## Caveats
|
|
|
|
- **Pre-1.0 API** — Current version is v0.20.x. Pin the CLI version and test upgrades on a branch before adopting. See [[upgrade-dagger]] for the upgrade procedure.
|
|
- **Privileged container** — The Dagger engine requires privileged container access. The Forgejo runner's DinD sidecar provides this.
|
|
|
|
## Related
|
|
|
|
- [[forgejo]] — CI/CD trigger layer
|
|
- [[zot]] — Container registry (publish target)
|
|
- [[docs]] — Documentation site (build target)
|
|
- [[manage-lockfile]] — Ringtail flake lockfile management
|