All hosts had identical nix-command/flakes settings in their
configuration.nix. Centralize in system/nix.nix so new hosts
(like pn01/pn02) get it automatically.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Remove monitoring01 host configuration and unused service modules
(prometheus, grafana, loki, tempo, pyroscope). Migrate blackbox,
exportarr, and pve exporters to monitoring02 with scrape configs
moved to VictoriaMetrics. Update alert rules, terraform vault
policies/secrets, http-proxy entries, and documentation to reflect
the monitoring02 migration.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Switch vmalert from blackhole mode to sending alerts to local
Alertmanager
- Import alerttonotify service so alerts route to NATS notifications
- Move alertmanager and grafana CNAMEs from http-proxy to monitoring02
- Add monitoring CNAME to monitoring02
- Add Caddy reverse proxy entries for alertmanager and grafana
- Remove prometheus, alertmanager, and grafana Caddy entries from
http-proxy (now served directly by monitoring02)
- Move monitoring02 Vault AppRole to hosts-generated.tf with
extra_policies support and prometheus-metrics policy
- Update Promtail to use authenticated loki.home.2rjus.net endpoint
only (remove unauthenticated monitoring01 client)
- Update pipe-to-loki and bootstrap to use loki.home.2rjus.net with
basic auth from Vault secret
- Move migration plan to completed
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
The secret file needs to be owned by promtail since Promtail runs
as a dedicated user and can't read root-owned files.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Loki bound to localhost, Caddy reverse proxy with basic_auth
- Vault secret (shared/loki/push-auth) for password, bcrypt hash
generated at boot for Caddy environment
- Promtail dual-ships to monitoring01 (direct) and loki.home.2rjus.net
(with basic auth), conditional on vault.enable
- Terraform: new shared loki-push policy added to all AppRoles
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Update all LogQL examples, agent instructions, and scripts to use
the hostname label instead of host, matching the Prometheus label
naming convention. Also update pipe-to-loki and bootstrap scripts
to push hostname instead of host.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Align Promtail labels with Prometheus by adding hostname, tier, and role
static labels to both journal and varlog scrape configs. Add pipeline
stages to map journal PRIORITY field to a level label for reliable
severity filtering across the fleet.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Removed:
- hosts/nix-cache01/ directory
- services/nix-cache/build-flakes.{nix,sh} (replaced by NATS builder)
- Vault secret and AppRole for nix-cache01
- Old signing key variable from terraform
- Old trusted public key from system/nix.nix
Updated:
- flake.nix: removed nixosConfiguration
- README.md: nix-cache01 -> nix-cache02
- Monitoring rules: removed build-flakes alerts, updated harmonia to nix-cache02
- Simplified proxy.nix (no longer needs hostname conditional)
nix-cache02 is now the sole binary cache host.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Parameterize harmonia.nix to use hostname-based Vault paths
- Add nix-cache services to nix-cache02
- Add Vault secret and variable for nix-cache02 signing key
- Add nix-cache02 public key to trusted-public-keys on all hosts
- Update plan doc to remove actions runner references
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
When one host fetches the latest flake revision, it publishes to NATS
and all other hosts receive the update immediately. This reduces
redundant nix flake metadata calls across the fleet.
- Add nkeys to devshell for key generation
- Add nixos-exporter user to NATS HOMELAB account
- Add Vault secret for NKey storage
- Configure all hosts to use NATS for revision sharing
- Update nixos-exporter input to version with NATS support
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Adds a system-wide script for sending command output or interactive
sessions to Loki for easy sharing with Claude.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Add homelab.kanidm.enable option for central authentication via Kanidm.
The module configures:
- PAM/NSS integration with kanidm-unixd
- Client connection to auth.home.2rjus.net
- Login authorization for ssh-users group
Enable on testvm01-03 for testing.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Provides compressed swap in RAM to prevent OOM kills during
nixos-rebuild on low-memory VMs (2GB). Removes duplicate zram
configs from jelly01 and nix-cache01.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
All secrets are now managed by OpenBao (Vault). Remove the legacy
sops-nix infrastructure that is no longer in use.
Removed:
- sops-nix flake input
- system/sops.nix module
- .sops.yaml configuration file
- Age key generation from template prepare-host scripts
Updated:
- flake.nix - removed sops-nix references from all hosts
- flake.lock - removed sops-nix input
- scripts/create-host/ - removed sops references
- CLAUDE.md - removed SOPS documentation
Note: secrets/ directory should be manually removed by the user.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Switch all ACME certificate issuance from step-ca (ca.home.2rjus.net)
to OpenBao PKI (vault.home.2rjus.net:8200/v1/pki_int/acme/directory).
- Update default ACME server in system/acme.nix
- Update Caddy acme_ca in http-proxy and nix-cache services
- Remove labmon service from monitoring01 (step-ca monitoring)
- Remove labmon scrape target and certificate_rules alerts
- Remove alloy.nix (only used for labmon profiling)
- Add docs/plans/cert-monitoring.md for future cert monitoring needs
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Update homelab-deploy input to get metrics support
- Enable metrics endpoint on port 9972
- Add scrape target for prometheus auto-discovery
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Add homelab.deploy.enable option (requires vault.enable)
- Create shared homelab-deploy Vault policy for all hosts
- Enable homelab.deploy on all vault-enabled hosts
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Add system/homelab-deploy.nix module that automatically enables the
listener on all hosts with vault.enable=true. Uses homelab.host.tier
and homelab.host.role for NATS subject subscriptions.
- Add homelab-deploy access to all host AppRole policies
- Remove manual listener config from vaulttest01 (now handled by system module)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Add a shared `homelab.host` module that provides host metadata for
multiple consumers:
- tier: deployment tier (test/prod) for future homelab-deploy service
- priority: alerting priority (high/low) for Prometheus label filtering
- role: primary role of the host (dns, database, monitoring, etc.)
- labels: free-form labels for additional metadata
Host configurations updated with appropriate values:
- ns1, ns2: role=dns with dns_role labels
- nix-cache01: priority=low, role=build-host
- vault01: role=vault
- jump: role=bastion
- template, template2, testvm01, vaulttest01: tier=test, priority=low
The module is now imported via commonModules in flake.nix, making it
available to all hosts including minimal configurations like template2.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Add nixos-exporter prometheus exporter to track NixOS generation metrics
and flake revision status across all hosts.
Changes:
- Add nixos-exporter flake input
- Add commonModules list in flake.nix for modules shared by all hosts
- Enable nixos-exporter in system/monitoring/metrics.nix
- Configure Prometheus to scrape nixos-exporter on all hosts
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Displays FQDN and flake commit hash with timestamp on login.
Templates can override with their own MOTD via mkDefault.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Convert remaining writeShellScript usages to writeShellApplication for
shellcheck validation and strict bash options.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Adds a helper script deployed to all hosts for testing feature branches.
Usage: nixos-rebuild-test <action> <branch>
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Add exporters and scrape targets for services lacking monitoring:
- PostgreSQL: postgres-exporter on pgdb1
- Authelia: native telemetry metrics on auth01
- Unbound: unbound-exporter with remote-control on ns1/ns2
- NATS: HTTP monitoring endpoint on nats1
- OpenBao: telemetry config and Prometheus scrape with token auth
- Systemd: systemd-exporter on all hosts for per-service metrics
Add alert rules for postgres, auth (authelia + lldap), jellyfin,
vault (openbao), plus extend existing nats and unbound rules.
Add Terraform config for Prometheus metrics policy and token. The
token is created via vault_token resource and stored in KV, so no
manual token creation is needed.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Replace sops-nix secrets with OpenBao vault secrets across all hosts.
Hardcode root password hash, add extractKey option to vault-secrets
module, update Terraform with secrets/policies for all hosts, and
create AppRole provisioning playbook.
Hosts migrated: ha1, monitoring01, ns1, ns2, http-proxy, nix-cache01
Wave 1 hosts (nats1, jelly01, pgdb1) get AppRole policies only.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Replace static zone file with dynamically generated records:
- Add homelab.dns module with enable/cnames options
- Extract IPs from systemd.network configs (filters VPN interfaces)
- Use git commit timestamp as zone serial number
- Move external hosts to separate external-hosts.nix
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
