Adds services/dev/obsidian-livesync.nix — CouchDB 3 from the native
nixpkgs module, tuned as the backend for the Self-hosted LiveSync plugin
— and publishes it as notes.mgaction.town through neptun.
It goes out over the public reverse proxy rather than staying on the LAN
because Obsidian's mobile apps refuse cleartext HTTP and *.jupiter.sol
cannot hold a publicly trusted cert. That makes the hardening load-bearing
rather than decorative:
- require_valid_user in both [chttpd] and [chttpd_auth], so nothing
answers unauthenticated on the open internet;
- neptun's vhost matches on CouchDB's own naming rule (system endpoints
all begin with `_`, user databases never can), so Fauxton, /_all_dbs
and /_node/_local/_config — which rewrites the server config given
admin credentials — 404 at the proxy while any number of per-vault
databases pass. Verified against both sets of paths with caddy run
against a stub backend;
- the plugin's own E2EE carries the actual confidentiality: jupiter only
ever stores ciphertext. Its passphrase is deliberately NOT in sops —
it never leaves the clients, and pairing it with the server credential
would defeat the point.
flush_interval -1 is required, not tuning: replication rides a continuous
_changes feed that caddy would otherwise buffer into a stall.
Storage sits on the array with RequiresMountsFor, since a CouchDB that
starts without /mnt/data would create an empty database on the eMMC and
LiveSync would replicate that emptiness back to every client. Logs go to
journald rather than the unrotated /var/log/couchdb.log, for the same
29G-eMMC reasons as the rest of jupiter.
The admin password reaches CouchDB as an [admins] ini fragment via
extraConfigFiles; services.couchdb.adminPass would have rendered it into
the world-readable store.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01TLN5nkLBtCciD3ZnUwtw2b
The hook registered with no events at all and delivered nothing.
"pull_request_review_comment" and "pull_request_review_rejected" are real
HookEventTypes and real X-GitHub-Event-Type values, but they are not
things gitea's hook API accepts. updateHookEvents
(routers/api/v1/utils/hook.go) matches a fixed list of api names and
silently ignores anything else, so every event flag stayed false, the POST
succeeded, and the hook sat there inert.
There is no narrower api name: HasEvent (models/webhook/webhook.go)
collapses approved, rejected and review-comment onto
HookEventPullRequestReview, so `pull_request_review` is a single switch for
all three. Approvals consequently cannot be excluded at the hook any more.
They now cross the wire as "pull_request_approved", which is not in the
route's event list, so Hermes ignores them on the event match -- before the
filter script and before any LLM call. Gitea's delivery log will show them
answered 200/ignored, which is intended.
That makes three namespaces for the same event rather than two, so the
tables in both nix files and the README now carry the api column, and the
README warns about the silent-ignore behaviour that hid this.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01S94o42aQ8VkBmEWvDem5xa
One webhook per route, from a list, so adding a route is an entry rather
than a copy of the unit. The PR-review hook subscribes
pull_request_review_comment and pull_request_review_rejected.
The unit runs as the gitea user on a multi-user box, where
/proc/<pid>/cmdline is world-readable for the lifetime of the process, so
`-H "Authorization: token $t"` published the admin token and
`jq --arg secret "$s"` the webhook secret -- which is exactly what the
existing comment claimed to be avoiding by putting the body on stdin. The
token now goes through a 0600 `curl -K` config written with printf (a
shell builtin, so the substitution never reaches an argv) and the secret
through jq --rawfile.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01S94o42aQ8VkBmEWvDem5xa
A timeline comment on a PR never reached the route. Gitea reuses the same
strings in two namespaces and they collide:
subscription name wire name (X-GitHub-Event) what it is
pull_request_comment issue_comment comment on a PR
issue_comment issue_comment comment on an issue
pull_request_review_comment pull_request_comment review on a PR
The hook's `events` array takes the subscription name; Hermes matches
--events against X-GitHub-Event, the wire name, produced by
HookEventType.Event() in modules/webhook/type.go. So --events
pull_request_comment was selecting review submissions and could never match a
comment -- the exact inversion of what it reads like.
That also explains both observed failures. The review submission matched
(wire name pull_request_comment) and reached the filter, which correctly
dropped it on action=reviewed since a PullRequestPayload carries no comment
object. The timeline comment arrived as issue_comment, matched nothing, and
was dropped by the events filter before the script ever ran.
gitea.nix and hermes-agent.nix now deliberately name the same event
differently, so both carry the table and say the other is not a typo.
issue_comment on the wire also covers comments on plain issues. The hook does
not subscribe those, and the filter's is_pull check drops them regardless, so
widening the hook later cannot leak issue comments into the agent.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01S94o42aQ8VkBmEWvDem5xa
Names the webhook "PR comments Hermes" (gitea's CreateHookOption/EditHookOption
both carry an optional `name`, so it survives the create and the update path)
and narrows it from all 26 event types to pull_request_comment alone.
Gitea sends pull_request_comment distinctly from issue_comment, so the hook
now covers comments on pull requests and nothing else. Hermes would have
dropped the rest anyway -- its route filters on X-GitHub-Event before any LLM
call -- so this is defence in depth rather than the only gate, but it keeps
traffic that can never be acted on from crossing the wire and reaching the
agent's process at all.
The tradeoff is that event selection now lives on both sides: a second Hermes
route needs its event adding here as well as being subscribed. That is the
right way round for a single-purpose hook, and the comment says so.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01S94o42aQ8VkBmEWvDem5xa
The relay existed on the premise that Gitea sends no header Hermes can read
an event name from, so something had to copy X-Gitea-Event into
X-GitHub-Event. That premise was wrong. Gitea's addDefaultHeaders sets
req.Header["X-GitHub-Delivery"] = []string{t.UUID}
req.Header["X-GitHub-Event"] = []string{event}
req.Header["X-GitHub-Event-Type"] = []string{eventType}
unconditionally, for every webhook type, alongside X-Hub-Signature-256 in
GitHub's exact format. (Direct map assignment rather than .Add() specifically
to keep the "GitHub" casing that canonicalisation would destroy.) Hermes
validates that signature on any route without provider gating and reads the
event name from that header, so gitea and hermes already speak the same
protocol and the translation layer was translating nothing.
Gitea now posts straight at http://mars.orbit.sol:8644/webhooks/gitea-pr-comments.
The URL path is the Hermes route name, so a second subscription is a second
hook and nothing else -- the route-in-path indirection the relay grew was a
reimplementation of something Hermes already had.
Removes the module, the 200-line relay, its test, the mars import, the 8645
listener, and the stale gitea-hermes-webhook-relay.service entry left in the
secret's restartUnits. hermes-agent-webhook-route moves to
hosts/mars/hermes-agent.nix, next to the container and the read-only prompt
and filter mounts it depends on.
Also makes that unit refuse to subscribe when GITEA_HERMES_WEBHOOK_SECRET is
unset in the container, matching the existing empty-prompt check. An empty
secret silently fails every delivery signature check afterwards while the
unit still reports success -- the worst possible failure shape, and one this
setup can actually produce on a first deploy.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01S94o42aQ8VkBmEWvDem5xa
Mirrors the `hermes` alias on mars. The admin CLI is effectively
undiscoverable without it: the package is not in systemPackages so `gitea` is
not on PATH at all, every admin subcommand needs GITEA_WORK_DIR pointed at a
stateDir that is not the module default, and it has to run as the gitea user
or it drops root-owned files into that directory. Getting any of the three
wrong fails in a different and unhelpful way.
Both the package path and the stateDir come from the config rather than being
written out, so a gitea bump or a stateDir move cannot leave the alias
pointing at something stale — which is exactly what a hardcoded /nix/store
path would do.
Lives in services/dev/gitea.nix, which only jupiter imports, so it does not
leak onto hosts with no gitea to administer.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01S94o42aQ8VkBmEWvDem5xa
Webhook delivery to the hermes relay was refused outright:
Post "http://mars.orbit.sol:8645/gitea/gitea-pr-comments":
dial tcp 100.64.0.6:8645: webhook can only call allowed HTTP servers
(check your security.ALLOWED_HOST_LIST setting),
deny 'mars.orbit.sol(100.64.0.6:8645)'
ALLOWED_HOST_LIST defaults to `external`, documented as "a valid non-private
unicast IP". Tailscale addresses come from 100.64.0.0/10 — RFC 6598
carrier-grade NAT space — which is not RFC1918 private but does not satisfy
gitea's notion of external either, so every tailnet target is denied by
default. Nothing about the relay or the URL was wrong; the request never left
jupiter.
Sets the tailnet CIDR explicitly and keeps `external`, so a future webhook to
a public service still works without another edit here.
Goes in [security], not [webhook]: the webhook-section key is deprecated in
favour of this one and now merely falls back to it, and [security] is the
name the delivery error itself reports.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01S94o42aQ8VkBmEWvDem5xa
Retiring gitea-events is a one-off migration, not something worth re-running
on every boot. Both units now only touch what they own: jupiter's creates or
updates its own hook and deletes nothing, and mars's removes only the route
it is about to re-subscribe, as the idempotency step for `subscribe`.
Keeping the deletes would have meant a redeploy could silently remove a hook
or route someone added deliberately -- a real risk now that sibling hooks
for other Hermes routes are the intended pattern.
README carries the manual commands, and the note that both hooks fire until
the old one is removed by hand, so events arrive twice in the meantime.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01S94o42aQ8VkBmEWvDem5xa
Renames the subscription to gitea-pr-comments (it handles one event; the old
gitea-events name promised more than it delivered) and drops --deliver.
Rather than move the hardcoded route from one constant to another, the relay
now reads it from the request path: POST /gitea/<route> forwards to
<base>/webhooks/<route>. The route name was the last thing tying this service
to a specific subscription, so a second Hermes route is now a `hermes webhook
subscribe <name>` plus a Gitea hook at /gitea/<name>, with no relay change --
previously it would also have needed a second relay URL baked in here.
The path segment is interpolated into an outbound URL, so it is validated
against ^[A-Za-z0-9][A-Za-z0-9._-]{0,63}$ and refused rather than sanitised
when it does not match. The path is matched raw and never URL-decoded, so
percent-encoded separators fail the charset check instead of surviving it;
requiring an alphanumeric first character also rejects "." and "..". Without
this, POST /gitea/..%2fadmin would let anything that can reach the relay
steer it at other Hermes endpoints. Tests cover traversal, encoded traversal,
embedded slashes, leading dot/dash, and the length bound, and assert nothing
reaches the stub Hermes in any of those cases.
Dropping --deliver leaves it at its default of `log`. The prompt tells her to
answer in the pull request, so the PR comment is the delivery and a Telegram
copy would only duplicate it; this also removes the hardcoded chat id that
was a third copy of TELEGRAM_HOME_CHANNEL.
Provisioning retires the pre-rename hook by its EXACT old URL rather than by
"points at the relay". Now that sibling hooks for other routes are the
intended pattern, a prefix match would delete them.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01S94o42aQ8VkBmEWvDem5xa
Completes the subscription: it had a secret, a delivery target and a script,
but no prompt and no event list, so it woke the agent on every forwarded
event with nothing to tell her what to do.
--events pull_request_comment narrows the route to the one event the prompt
handles. This only works because the relay copies X-Gitea-Event into
X-GitHub-Event; without that every delivery arrives as "unknown" and matches
nothing. Gitea sends pull_request_comment distinctly from issue_comment, so
plain issue comments no longer reach the agent at all. The Gitea-side hook
still posts the full event set to the relay and Hermes drops the rest before
any LLM call.
The prompt lives in hosts/mars/gitea-pr-comment-prompt.md, mounted read-only
next to the filter, and is read with $(cat) at subscribe time rather than
passed inline. That is not only about escaping: the text has to survive nix
`` string escaping, the systemd unit file, and `podman exec sh -c '...'`
single-quoting. It contains an apostrophe ("the PR's head branch") that
would terminate that single-quoted string early. Read from a file at runtime
the content never passes through shell source, so it can contain anything.
Verified end to end against the rendered unit with stubbed podman/hermes:
the value reaching --prompt is byte-identical to the repo file apart from
the trailing newline that command substitution strips.
`set -eu` inside the container shell is load-bearing. Without it a missing
prompt file makes cat fail, the substitution yields "", and the subscription
is created with an empty prompt -- a silent failure that still looks like a
healthy unit.
On what read-only does not buy: it protects the sources, and this unit
re-subscribes from them on every start, so a restart restores the intended
prompt, filter and events. The live subscription itself lives in
webhook_subscriptions.json under /opt/data and is hot-reloaded, which is
inside the agent's own write-safe root -- a self-modification would stick
until this unit next runs.
The prompt keeps its own stop conditions even though the filter already drops
those deliveries, and says explicitly that reaching them means the filter
failed.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01S94o42aQ8VkBmEWvDem5xa
The gitea-events subscription woke the agent on every delivery. That is an
unbounded loop as soon as she is given a prompt that tells her to answer on
the PR: her answer is itself a pull_request_comment, which wakes her again.
Adds a Hermes route script that drops the deliveries that must never reach an
LLM call: luna's own comments (the loop guard), "deleted" actions (the body
is still in the payload, so acting on one means acting on a request that was
explicitly withdrawn), non-pull-request comments, empty bodies, and edits
that did not actually change the body — a label or attachment change fires
"edited" too. Everything else passes through unchanged.
Mounted READ-ONLY from the nix store rather than written into hermesHome.
Hermes resolves route scripts under ~/.hermes/scripts, which here is inside
/opt/data — HERMES_WRITE_SAFE_ROOT — so a filter written there would be a
loop guard sitting in the writable root of the agent it constrains. Deleting
it fails closed (Hermes treats a missing script as "ignore"), but rewriting
it to always-allow would silently restore the loop. Read-only from the store
makes that impossible and keeps the guard in git.
The script also normalises changes.body.from to always exist. Gitea omits
`changes` entirely on created events, and Hermes replaces the prompt payload
with whatever JSON the script emits, so guaranteeing the key here means a
prompt referencing {changes.body.from} renders empty instead of leaving an
unfilled placeholder.
Note the stdout contract (gateway/platforms/webhook.py): only exactly
"[SILENT]", empty output, or a nonzero exit drop a delivery. Any OTHER text
on stdout lets it through and is attached as script_output — so a stray
debug print would silently defeat the filter. All diagnostics go to stderr,
and gitea-pr-comment-filter-test.py asserts that discipline along with each
drop rule (25 cases). Run it after any edit: the fail-closed behaviour means
a syntax error produces silence, not an error.
--events is still unset; event selection remains runtime-tunable policy.
The filter covers only what must not be.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01S94o42aQ8VkBmEWvDem5xa
Three fixes to how luna's git/tea credentials are set up on mars, all found
against the running instance on 2026-08-23.
Drop the host-side clone. hermes-agent-prepare-dirs used to clone this repo
into ${hermesHome}/workspace/homelab, but nothing ever told luna at runtime
that it was there — she self-manages config/profiles/memories, so a path
baked into this file never reached her. She searched /opt/data/homelab and
/workspace, found neither, and concluded she had no repo at all. The
credentials are what actually grant access; any checkout is hers to make
anywhere inside HERMES_WRITE_SAFE_ROOT. The stale directory left by the old
version is deliberately not cleaned up, just unmanaged from here on.
Point credential.helper at the CONTAINER's path. It was written as the host
path (${hermesHome}/.git-credentials), which does not exist inside the
container where git actually reads the config — broken this way from 3c1f3e5
until now. Nothing host-side consumes those credentials any more, so the
container's view is the only one that has to be right; added `containerHome`
to make the distinction explicit at the point of use.
Chown what the oneshot writes. The image's cont-init only chowns the top
level of hermesHome and its own state — it does not recurse into the
root-owned 0600 files this unit drops there (.git-credentials, and tea's
config.yml, which tea also writes 0600), even though it runs afterwards. The
symptom was not an error but an absence: git reported no credential helper
and tea no login. Uses `if` rather than `[ -d x ] && chown` because under
`set -e` a false test on the left of an && list aborts the unit.
gitea.nix carries the matching comment updates: the luna provisioning unit is
server-side only, and her token needs write:repository,write:issue,read:user.
write:issue is the one that is easy to miss — a pull request IS an issue in
gitea's data model, so /pulls endpoints gate on the issue scope category and
`tea pr create` fails with write:repository alone even though clone, fetch
and push all work.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01S94o42aQ8VkBmEWvDem5xa
The relay was forwarding X-Gitea-Event and re-signing the body into the
deprecated generic-V1 X-Webhook-Signature header. Neither is something
Hermes acts on, which left the PR's core premise — "Hermes owns event
selection" — impossible to reach:
- Hermes reads the event name only from X-GitHub-Event/X-GitLab-Event,
then payload event_type/type, then falls back to the literal string
"unknown" (gateway/platforms/webhook.py). Gitea sends X-Gitea-Event and
no such payload key, so every delivery arrived as "unknown" and
`hermes webhook subscribe --events ...` could never select anything.
- Gitea's addDefaultHeaders() already signs every webhook type with
X-Hub-Signature-256 in GitHub's exact format, and Hermes accepts that
header on any route with no per-route provider gating. Re-signing into
V1 was both redundant and on a deprecated path.
So the relay now verifies the signature (accepting either X-Hub-Signature-256
or X-Gitea-Signature), forwards body and signature byte-for-byte, and copies
the one header Hermes actually needs. Authentication alone never justified
this service; that header copy does, and the module comment now says so.
Also fixed:
- gitea-hermes-webhook-provision had no API readiness wait, unlike both
sibling units in the same file. After=gitea.service does not mean gitea
is serving HTTP, so under `set -e` a Type=oneshot with no Restart= would
fail on first boot and stay failed, leaving the webhook unregistered.
- podman-hermes-agent added to the secret's restartUnits. The secret
reaches the container only via sops.templates, whose rendered path never
changes, so systemd would not restart the container when the secret was
first added — hermes-agent-webhook-route then read an empty value back
out of it and subscribed with an empty secret.
- Webhook provisioning passes the request body to curl on stdin rather
than in argv, keeping the shared secret out of /proc/<pid>/cmdline.
- Missing Content-Length now returns 411 rather than 413; dropped the
unreachable non-2xx branch (urlopen raises on non-2xx); env-var secret
fallback is stripped to match the credential-file path.
Adds gitea-hermes-webhook-relay-test.py, which drives the real relay over
real HTTP against a stub Hermes and covers the header copy as a regression
test. Both nixosConfigurations still evaluate.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01S94o42aQ8VkBmEWvDem5xa
Provisions a dedicated PR-tier gitea account (luna) with branch protection
restricting master push/merge/approve to darman only, then wires git and
tea directly into the hermes-agent container (mounted from the host's Nix
store, credential-store + tea login set up by a host-side prepare oneshot,
repo cloned inside Hermes's own writable sandbox root at
/opt/data/workspace/homelab). Replaces an earlier standalone MCP-server
approach, scrapped in favor of direct CLI access for simplicity.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011FHr5ug9pu8q4XPrRkFnzJ
Workflows push as a dedicated ci-bot account rather than a human one, so its
PAT can be scoped, rotated and revoked on its own. Adding a repo to
`ciBotRepos` and redeploying is all it takes to grant access.
Collaborator access and branch-protection push-whitelisting exist only on
gitea's HTTP API — no CLI, no config-file surface — so this one part stays
imperative: a oneshot that PUT/PATCHes the API into the desired state. It
runs on deploys where the script changed, which means it won't self-heal a
revert done through the web UI unless the unit is restarted too.
Two secrets, deliberately distinct:
- gitea_provisioning_token is darman's own token (write:repository +
write:user). Only an owner-scoped token clears reqOwnerCheck on the
collaborator and branch-protection endpoints, and write:user is what lets
it write the Actions secret below. ci-bot cannot grant itself access.
- gitea_ci_bot_token is ci-bot's push token, generated once by hand (the
command is in the comment) and pushed into gitea as a user-level Actions
secret CI_BOT_TOKEN. Gitea has no instance-wide secret scope, and every
repo here is owned by darman directly rather than an org, so a user-level
secret is the closest thing — repo-level lookups fall back to it.
Branch protection is applied to the default branch plus `develop`, since
version-bump.yml pushes there.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Runner registers against the same gitea instance and runs jobs in podman
containers (services/containers.nix), one image per runs-on label using the
catthehacker act-compatible images. Registration token comes from gitea
itself (gitea actions generate-runner-token) and is stored in
secrets/jupiter.yaml, rendered into a TOKEN=... env file via sops.templates
since gitea-actions-runner takes an EnvironmentFile, not a raw secret path.
Probing the live Debian VPS turned up three mismatches between what it
serves and what this config declares:
- git.mgaction.town had no vhost at all. Gitea's web UI and HTTPS clones
are public today; only its SSH side (the :2222 socat forward) had been
ported, so a deploy would have taken the web side offline.
- Audiobookshelf is served as abs.mgaction.town, not the longer
audiobookshelf.mgaction.town this config used. The mobile app is
configured with the short name.
- The apex returns 200 from Caddy. Left unserved deliberately, so it now
gets Caddy's default 404; noted in a comment so it doesn't look like an
oversight next time.
Gitea's ROOT_URL was http:// while Caddy terminates TLS for that name.
Gitea builds absolute URLs from it, so clone buttons, redirects and
webhooks were handing out downgraded links.
Also record that defaultGateway6 is confirmed rather than assumed --
`ip -6 route show default` on the VPS gives "default via fe80::1 dev
eth0 metric 1024 onlink".
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Group service modules by category (media, network, vpn, identity,
dev, desktop) to make the growing services/ dir easier to navigate.
containers.nix stays at the top level since it's a shared backend,
not a single-category service.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
darmanandClaude Opus 5
luna