New on-site host mars runs Hermes Agent as its sole service: joins the
tailnet, mounts jupiter's samba share at /mnt/jupiter (doubling as
Hermes's shared dropbox), and hosts state locally under /var/lib/hermes.
Same Authentik OIDC app/Telegram bot as before, just relocated — neptun's
hermes.mgaction.town vhost now points at mars.orbit.sol instead of jupiter.
hosts/jupiter/hermes-agent.nix and its three sops secrets are removed;
jupiter's Caddy vhost for it is gone too. Also refreshes tailscale_authkey
across all hosts and fixes two stale "erik@laptop" keys in flake.nix's
kexec/installer-iso images (leftover from a previous laptop, already
swapped out of common.nix back in 2fd5752) to darman@terra.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011FHr5ug9pu8q4XPrRkFnzJ
Two changes to the control server, plus the fallout on the hosts.
OIDC via Authentik, so `tailscale up --login-server ...` opens a browser
instead of needing a pre-auth key. This is a second Authentik application,
separate from headplane's, with headscale's own /oidc/callback redirect.
Headless hosts keep using pre-auth keys. Note that headscale runs OIDC
discovery at startup and a failure is FATAL -- pointing `issuer` at an
application that does not exist yet means the control server will not
boot, so verify the discovery document before deploying.
override_local_dns = false, because the upstream default of true replaces
resolv.conf with 100.100.100.100 on every node. That silently broke the
LAN's `.sol` names -- pihole serves those and the global nameservers
return NXDOMAIN for them -- and took ad blocking down with them. It also
made each node's entire DNS depend on tailscaled, which is what had
forced --accept-dns=false onto neptun and mercury individually; both of
those workarounds are now removed, and with MagicDNS resolving properly
again neptun no longer needs its hardcoded /etc/hosts pin for jupiter.
Also serves jellyfin and seerr from jupiter, matching the ports they
already use on its LAN vhosts, and rotates the tailnet pre-auth keys.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
mercury was the only host with no tailscale at all -- no module import,
no secret, no key in its sops file. It had been enrolled before the NixOS
migration and silently dropped off the tailnet when it was reflashed with
a config that omitted it.
--accept-dns=false, as on neptun and for a sharper reason: headscale
pushes override_local_dns, so accepting MagicDNS would repoint the LAN's
own DNS server at 100.100.100.100 and make house-wide name resolution
depend on tailscaled being up. This host has already deadlocked once on
boot-time DNS (see CLAUDE.md).
darman_password is also rotated: the account had "!" in /etc/shadow,
because on mercury's first boot the secret wasn't readable yet and
update-users-groups.pl falls back to a locked account. mutableUsers is
true, so no later rebuild ever revisited it and the lock was permanent.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
pihole.toml is nix-managed read-only so 'pihole setpassword' fails. pihole-FTL
reads FTLCONF_* env vars (override the toml) — render an env file from the sops
secret pihole_webpassword and feed it via EnvironmentFile. Password stays out of
repo/store. VERIFIED in VM: FTLCONF_webserver_api_password -> API login works.
- after dd, if ~/.config/homelab/<config>/age.txt exists, mount the FAT boot
partition and drop it as sops-age.txt (mercury). Key stays off-repo + out of
the store + out of the image; no manual mount step.
- per-host darman_password (distinct hash) in secrets/{jupiter,vps,mercury}.yaml
-> hashedPasswordFile; different console password per host (ssh still key-only)
- mercury: dedicated age key (on boot partition post-flash), sops-nix wired
- AdGuard: module has no secret hook + writable config -> mutableSettings=true,
admin password set via web setup on first boot (never in repo/store)
darmanandClaude Sonnet 5