From f058e83da43b0b661b45a7bd4c82b49c57e61d93 Mon Sep 17 00:00:00 2001
From: St33v <github@f3rr3t.com>
Date: Tue, 9 Jun 2026 13:04:04 +1000
Subject: Add IDR713 radar fetch and APNG loop

radarFetch.sh fetches BOM IDR713 transparencies (24h cache) and the
last six 6-minute echo frames, composites them via cached lower/upper
plates, and publishes an APNG loop to /srv/www/radar/.

systemd: radar.{service,timer} on a 6-min cadence, with retry units
mirroring the synoptic pattern.

nginx: new radar.pestrel.com vhost (still commented in setup.sh until
DNS propagation is confirmed).

setup.sh provisions radar dirs, installs radar units, enables timer.
deploy.sh accepts synoptic|radar arg.

Parameterised on product code; adding another radar is a one-line
config change.

Spec: doc/bom-radar-spec.md.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
---
 systemd/radar-retry.service | 12 ++++++++++++
 systemd/radar-retry.timer   |  8 ++++++++
 systemd/radar.service       | 13 +++++++++++++
 systemd/radar.timer         | 11 +++++++++++
 4 files changed, 44 insertions(+)
 create mode 100644 systemd/radar-retry.service
 create mode 100644 systemd/radar-retry.timer
 create mode 100644 systemd/radar.service
 create mode 100644 systemd/radar.timer

(limited to 'systemd')

diff --git a/systemd/radar-retry.service b/systemd/radar-retry.service
new file mode 100644
index 0000000..b878303
--- /dev/null
+++ b/systemd/radar-retry.service
@@ -0,0 +1,12 @@
+[Unit]
+Description=Retry BOM radar fetch (after failure)
+
+[Service]
+Type=oneshot
+User=st33v
+WorkingDirectory=/var/lib/radar
+ExecStart=/opt/radar/radarFetch.sh
+ExecStopPost=/bin/sh -c 'STATUS=SUCCESS; [ "$$EXIT_STATUS" != "0" ] && STATUS=FAILURE; logger -t radar-retry -p user.err "radar-retry $$STATUS exit=$$EXIT_STATUS"'
+SyslogIdentifier=radar-retry
+StandardOutput=journal
+StandardError=journal
diff --git a/systemd/radar-retry.timer b/systemd/radar-retry.timer
new file mode 100644
index 0000000..d7c8d9b
--- /dev/null
+++ b/systemd/radar-retry.timer
@@ -0,0 +1,8 @@
+[Unit]
+Description=Retry radar fetch 2 minutes after failure
+
+[Timer]
+OnActiveSec=2min
+
+[Install]
+WantedBy=timers.target
diff --git a/systemd/radar.service b/systemd/radar.service
new file mode 100644
index 0000000..8e9dd40
--- /dev/null
+++ b/systemd/radar.service
@@ -0,0 +1,13 @@
+[Unit]
+Description=Fetch BOM radar and publish loop APNG
+OnFailure=radar-retry.timer
+
+[Service]
+Type=oneshot
+User=st33v
+WorkingDirectory=/var/lib/radar
+ExecStart=/opt/radar/radarFetch.sh
+ExecStopPost=/bin/sh -c 'STATUS=SUCCESS; [ "$$EXIT_STATUS" != "0" ] && STATUS=FAILURE; logger -t radar -p user.err "radar $$STATUS exit=$$EXIT_STATUS"'
+SyslogIdentifier=radar
+StandardOutput=journal
+StandardError=journal
diff --git a/systemd/radar.timer b/systemd/radar.timer
new file mode 100644
index 0000000..c147481
--- /dev/null
+++ b/systemd/radar.timer
@@ -0,0 +1,11 @@
+[Unit]
+Description=Run BOM radar fetch every 6 minutes
+
+[Timer]
+OnBootSec=2min
+OnUnitActiveSec=6min
+AccuracySec=15s
+Persistent=true
+
+[Install]
+WantedBy=timers.target
-- 
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