Captures the post-mortem of the April 13 power-cut: incident timeline,
retrospective, and architecture/role diagrams. Adds an ADR explaining why
Longhorn cannot re-associate orphaned replica directories after a nuclear
reinstall (engine-id naming), plus block-device recovery runbooks and the
`playbooks/recover/longhorn_data.yml` automation that wires `merge-longhorn-layers.py`
to rebuild PVCs from raw `volume-head-*.img` chains.
Also extends the k3s_pvc backup to capture Longhorn `volumes`/`settings` CRDs
(needed for the fast-path restore) and rewrites the restore script with a
fallback dir + English messages.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Moves the local ansible runtime from a global `uv tool install ansible-core`
(which required remembering `--with kubernetes --with jmespath --with dnspython`)
to a project-managed venv described by `pyproject.toml` + `uv.lock`. Fixes the
"Failed to import the required Python library (kubernetes)" error on localhost.
The localhost inventory entry now derives `ansible_python_interpreter` from
`{{ ansible_playbook_python }}`, so `uv run ansible-playbook` is enough — no
more hardcoded user-specific paths.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
During the 2026-04-13 power cut recovery, DNS resolution failures blocked
Longhorn reinstall. Root causes:
- CoreDNS forwarded to a single hardcoded Pi-hole IP instead of both HA instances
- CoreDNS main Corefile forwarded to /etc/resolv.conf which pointed to itself on pi3
- Pi-hole lacked explicit upstream DNS, relying on DHCP-provided config
- dnsmasq system service conflicted with pihole-FTL on port 53
Changes:
- k3s_dns: forward CoreDNS to both Pi-hole HA instances (pi1 + pi3) dynamically
- k3s_dns: update main CoreDNS Corefile to forward to Pi-holes instead of resolv.conf
- pihole defaults: add explicit upstream DNS servers (8.8.8.8, 1.1.1.1, 8.8.4.4)
- pihole ha_setup: write /etc/dnsmasq.d/99-upstream.conf with explicit upstreams
- rpi: add dnsmasq user to dip group and disable conflicting dnsmasq service on Pi-hole nodes
See docs/adr/20260414-internal-dns-architecture.md for full rationale.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Two bugs caused daemon.json to be overwritten with invalid content:
- Invalid `when` condition using unsupported Ansible inline stat syntax,
causing the existing file read to be silently skipped and docker_config
to always reset to {}
- Folded scalar `>` in set_fact converted the dict to a Python string
representation, which to_nice_json serialized as a JSON string instead
of an object
Fixes identified during 2026-04-13 power cut incident post-mortem.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit adds a detailed sequence diagram to the Docker storage optimization ADR, illustrating the workflow for configuring Docker storage, pinning images, and maintaining Longhorn performance.
Generated by Mistral Vibe.
Co-Authored-By: Mistral Vibe <vibe@mistral.ai>
This commit moves Architecture Decision Records (ADRs) from ../../../docs/adr/ to docs/adr/ in the arcodange/factory repository. This centralizes all ADRs in one location for better maintainability and discoverability.
Generated by Mistral Vibe.
Co-Authored-By: Mistral Vibe <vibe@mistral.ai>
This commit updates the README to include a detailed timeline of the playbook execution sequence, organized into sections for system setup, application setup, CI/CD, tools, and backups.
Generated by Mistral Vibe.
Co-Authored-By: Mistral Vibe <vibe@mistral.ai>
This commit uncomments the PostgreSQL backup section in the backup playbook to enable regular backups of the PostgreSQL database.
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Co-Authored-By: Mistral Vibe <vibe@mistral.ai>
The default kube-rbac-proxy image (gcr.io/kubebuilder/kube-rbac-proxy:v0.15.0) is AMD64-only and fails on pi3 (ARM64). This commit overrides the image to use quay.io/brancz/kube-rbac-proxy:v0.15.0, which supports ARM64.
Note: pi2 (ARMv7) may work with AMD64 images, but pi3 (ARM64) requires an ARM64-compatible image.
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Co-Authored-By: Mistral Vibe <vibe@mistral.ai>
