Files
homelab/services/dev/gitea-hermes-webhook-relay.nix
T

81 lines
2.6 KiB
Nix

{ config, pkgs, ... }:
let
relayScript = pkgs.writeText "gitea-hermes-webhook-relay.py" (
builtins.readFile ./gitea-hermes-webhook-relay.py
);
in
{
systemd.services.gitea-hermes-webhook-relay = {
description = "Normalize Gitea PR webhooks for Hermes Agent";
wantedBy = [ "multi-user.target" ];
wants = [ "network-online.target" ];
after = [
"network-online.target"
"podman-hermes-agent.service"
"tailscaled-autoconnect.service"
];
environment = {
LISTEN_HOST = "0.0.0.0";
LISTEN_PORT = "8645";
HERMES_WEBHOOK_URL = "http://127.0.0.1:8644/webhooks/gitea-events";
MAX_BODY_BYTES = "1048576";
};
serviceConfig = {
ExecStart = "${pkgs.python3}/bin/python ${relayScript}";
LoadCredential = [
"webhook_secret:${config.sops.secrets.gitea_hermes_webhook_secret.path}"
];
DynamicUser = true;
Restart = "on-failure";
RestartSec = 5;
PrivateDevices = true;
PrivateTmp = true;
ProtectHome = true;
ProtectSystem = "strict";
NoNewPrivileges = true;
RestrictAddressFamilies = [ "AF_INET" "AF_INET6" "AF_UNIX" ];
RestrictRealtime = true;
UMask = "0077";
};
};
# The relay forwards into a generic Hermes webhook subscription. Keep the
# subscription declaratively present without putting event policy or prompt
# text in this transport unit. Hermes owns interpretation and response policy.
systemd.services.hermes-agent-webhook-route = {
description = "Configure Hermes Gitea event webhook route";
wantedBy = [ "multi-user.target" ];
after = [ "podman-hermes-agent.service" ];
requires = [ "podman-hermes-agent.service" ];
path = [ pkgs.podman ];
serviceConfig = {
Type = "oneshot";
RemainAfterExit = true;
};
script = ''
set -euo pipefail
# The container unit is ordered before us, but its gateway may still be
# warming up while the image initializes its persistent state directory.
for _ in $(seq 1 60); do
if podman exec hermes-agent hermes webhook list >/dev/null 2>&1; then
break
fi
sleep 1
done
podman exec hermes-agent hermes webhook remove gitea-pr-comments >/dev/null 2>&1 || true
podman exec hermes-agent hermes webhook remove gitea-events >/dev/null 2>&1 || true
podman exec hermes-agent sh -c '
hermes webhook subscribe gitea-events \
--secret "$GITEA_HERMES_WEBHOOK_SECRET" \
--description "Forward authenticated Gitea events to L.U.N.A." \
--deliver telegram --deliver-chat-id "15151223"
'
'';
};
}