Cloud Radar Source Sync¶

Source And Destination¶

Source: aurora@100.124.55.22:/home/aurora/data/rpgfmcw94
Target raw directory: /project/aurora/raw/rpgfmcw94
Target Zarr: /data/aurora/products/rpgfmcw94/cloud_radar.zarr
Quicklooks: /data/aurora/products/quicklooks/cloud_radar

The source stores hourly radar files under a recursive Yyyyy/Mmm/Ddd/ tree. The sync pulls *LV1.NC files only and preserves relative paths.

Authentication¶

Radar source sync uses Tailscale SSH over the tailnet IP without private keys. The script uses regular ssh for rsync compatibility, with identity-file and public-key authentication disabled:

sudo -u aurora ssh -o IdentityFile=none -o PubkeyAuthentication=no aurora@100.124.55.22 true

Current Deployed Behavior¶

aurora-radar-source-sync.service runs /usr/local/bin/aurora-radar-sync. With the current deployment variables, when /var/lib/aurora-cloud/radar-sync.last does not exist the script writes 0, pulls the full current source history, and then advances the state marker on later runs.

If you deliberately want the old fresh-start behavior again, set radar_source_start_fresh: true and redeploy. In that mode the script writes the current epoch and exits when the state file is absent.

To deliberately reset the current sync point, stop the timer and edit or remove the state file:

sudo systemctl stop aurora-radar-source-sync.timer
sudo -u aurora date +%s | sudo tee /var/lib/aurora-cloud/radar-sync.last
sudo systemctl start aurora-radar-source-sync.timer

Processing¶

The radar timers are enabled in Ansible:

aurora-radar-append.timer
aurora-radar-quicklooks.timer

aurora-radar-source-sync.timer is enabled once source Tailscale SSH access is authorized.