blumeops/docs/how-to/how-to.md
Erich Blume 66b5b32f1d Formalize C0/C1/C2 change classification (#259)
## Summary
- **C0 (Quick Fix):** Now explicitly allows direct-to-main commits with no PR required — for low-risk, fix-forward-safe changes
- **C1 (Human Review):** New docs-first workflow with branch deployment (ArgoCD `--revision`, Ansible from checkout). Includes upgrade criteria for escalation to C2
- **C2 (Mikado Chain):** Introduces the **Mikado Branch Invariant** — strict commit ordering where card-introducing commits come first, followed by code progress, followed by card closures. Branch resets required when new prerequisites are discovered

Updates CLAUDE.md rules (3, 4, 8, 9) to reflect that C0 bypasses branching/PR requirements. Also updates ai-assistance-guide, how-to index, and docs-mikado task description.

## Files changed
- `CLAUDE.md` — rules and classification table
- `docs/how-to/agent-change-process.md` — full process rewrite
- `docs/tutorials/ai-assistance-guide.md` — branching and pitfalls sections
- `docs/how-to/how-to.md` — index description
- `mise-tasks/docs-mikado` — task description
- `docs/changelog.d/formalize-change-classification.doc.md` — changelog fragment

Reviewed-on: https://forge.ops.eblu.me/eblume/blumeops/pulls/259
2026-02-23 16:19:54 -08:00

4 KiB

title modified tags
How-To 2026-02-22
how-to

How-To Guides

Task-oriented instructions for common BlumeOps operations. These guides assume you already understand the basic concepts - see tutorials if you're learning.

Deployment

Guide Description
deploy-k8s-service Deploy a new service to Kubernetes via ArgoCD
add-ansible-role Add a new Ansible role for indri services
create-release-artifact-workflow Build artifacts and publish to Forgejo packages
build-container-image Build and release a custom container image via Dagger

Configuration

Guide Description
update-tailscale-acls Update Tailscale access control policies
gandi-operations Manage DNS records and cycle the Gandi API token
use-pypi-proxy Configure pip and publish packages to devpi
expose-service-publicly Expose a service to the public internet via Fly.io + Tailscale
update-documentation Publish docs via build-blumeops workflow
update-tooling-dependencies Monthly update cycle for pre-commit, Fly, mise, and workflow deps

Knowledge Base

Guide Description
review-documentation Periodically review and maintain documentation
review-services Periodically review services for version freshness
agent-change-process C0/C1/C2 change classification and Mikado Branch Invariant

Operations

Guide Description
connect-to-postgres Connect to PostgreSQL as a superuser via psql
restart-indri Safely shut down and restart indri
manage-flyio-proxy Deploy, shutoff, and troubleshoot the public proxy
restore-1password-backup Recover 1Password credentials from borgmatic backup
troubleshooting Diagnose and fix common issues

Plans

Migration and transition plans for upcoming infrastructure changes.

Plan Description
plans Index of all plans
completed Completed plans archive
migrate-forgejo-from-brew Transition Forgejo from Homebrew to source-built binary
add-unifi-pulumi-stack Add Pulumi IaC for UniFi Express 7 (abandoned)
segment-home-network Manual three-network segmentation for UniFi Express 7
adopt-dagger-ci Adopt Dagger as CI/CD build engine
upstream-fork-strategy Stacked-branch forking strategy for upstream projects
adopt-oidc-provider Deploy OIDC identity provider for SSO across services
upgrade-grafana Upgrade Grafana to 12.x with kustomize and home-built container
operationalize-reolink-camera Cloud-free NVR with Frigate and ring buffer recording

Ringtail

Guide Description
manage-lockfile Update or lock NixOS flake inputs via Dagger

Zot

Mikado chain for hardening the zot registry. Track progress with mise run docs-mikado harden-zot-registry.

Authentik

Mikado chain for deploying Authentik. Track progress with mise run docs-mikado deploy-authentik.

Grafana

Mikado chain for upgrading Grafana to 12.x with kustomize and home-built containers. Track progress with mise run docs-mikado upgrade-grafana.

Forgejo Runner

Mikado chain for upgrading the k8s forgejo-runner daemon from v6.3.1 to v12.x. Track progress with mise run docs-mikado upgrade-k8s-runner.