readsb and tar1090: globe index and saving history using traces

My readsb dev branch together with nginx and tar1090 allows to save traces. Those only contain altitude and positions.

See the history tab when selecting an aircraft on adsbexchange: https://tar1090.adsbexchange.com/

But it's not completely foolproof to configure and for the foreseeable future only holds altitude/positions information.

I'd strongly suggest setting up a secondary readsb service that's net-only and get's it's data via network

The relevant command line options:

--net-only --net-connector localhost,30005,beast_in --write-json-globe-index --write-globe-history /var/globe_history

The directory needs to be created and the ownership given to the user the service runs as. tar1090 needs to be configured to use the data from the appropriate /run directory (see multiple instances tar1090). If nginx is installed, tar1090 will advise which conifguration file to include.

Now you'll have to figure the rest out yourself, as i said i'm not prepared to support this for everyone. It's only for people who can read all the relevant help pages and --help outputs from readsb.