new post: weewx on openbsd

content/posts/2023-05-28-moving-weewx-to-openbsd/index.md

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+# vim: ft=markdown
+title = 'Moving WeeWX to OpenBSD'
+summary = '''I moved my WeeWX setup to my new server, which is running OpenBSD
+  7.3.'''
+date = '2023-05-27T23:19:53+02:00'
+# lastmod = ''
+categories = [ 'amateur-radio' ]
+tags = [ 'wx', 'weewx', 'openbsd', 'server', 'selfhost' ]
+
++++
+
+I've moved my server to a new provider and changed the OS within this task from
+[Rocky Linux](https://rockylinux.org/) to [OpenBSD](https://www.openbsd.org/).
+
+## Installation of WeeWX
+
+The [Installation Guide](http://weewx.com/docs/setup.htm) is very useful and
+you should follow its procedure.
+
+I installed WeeWX into `/home/weewx`. I also created a new user named _weewx_.
+
+```
+weewx:*:999:999:WeeWX Daemon:/home/weewx:/sbin/nologin
+```
+
+Also install some prerequisites:
+
+```
+pkg_add py3-configobj py3-serial py3-pyusb py3-pip py3-cheetah py3-jplephem py3-pymysql
+```
+
+```console
+$ python3 ./setup.py build
+$ doas python3 ./setup.py install
+```
+
+Optionally install ephem:
+
+```console
+$ doas -u weewx pip install ephem
+```
+
+You may want to change owner of the installed files (in case you didn't create
+the weewx user beforehand and used the root user for that before).
+
+```console
+# cd /home/weewx
+# chown -R weewx:weewx .
+# cd /var/www/weewx
+# chown -R weewx:weewx .
+```
+
+### Finally installed python stuff
+
+```console
+# pkg_info | grep py3 | awk '{ print $1 }'
+py3-chardet-5.1.0
+py3-cheetah-3.2.6p3
+py3-configobj-5.0.6p7
+py3-jplephem-2.18p0
+py3-numpy-1.24.1
+py3-pip-23.0.1
+py3-pymysql-1.0.2p2
+py3-pyusb-1.2.1
+py3-serial-3.4p5
+py3-setuptools-64.0.3p1v0
+py3-six-1.16.0p2
+```
+
+```console
+doas -u weewx pip list
+Package    Version
+---------- -------
+chardet    5.1.0
+Cheetah3   3.2.6
+configobj  5.0.6
+ephem      4.1.4
+jplephem   2.18
+numpy      1.24.1
+pip        23.0.1
+PyMySQL    1.0.2
+pyserial   3.4
+pyusb      1.2.1
+ranger-fm  1.9.3
+setuptools 64.0.3
+six        1.16.0
+```
+
+## Setting up the start script
+
+I've put the following file into `/etc/rc.d/weewx`:
+
+```sh
+#!/bin/sh
+# Start script for FreeBSD, contributed by user Fabian Abplanalp
+# Put this script in /usr/local/etc/rc.d then adjust WEEWX_BIN and
+# WEEWX_CFG values in /etc/defaults/weewx
+# some small modifications by Dominic Reich “OE7DRT”
+
+WEEWX_BIN="/home/weewx/bin/weewxd"
+WEEWX_CFG="/home/weewx/weewx.conf"
+#WEEWX_PID="/var/run/weewx/weewx.pid"
+WEEWX_PID="/home/weewx/weewx.pid"
+DOAS="/usr/bin/doas -u weewx"
+
+# Read configuration variable file if it is present
+#[ -r /etc/defaults/weewx ] && . /etc/defaults/weewx
+[ -r /home/weewx/defaults ] && . /home/weewx/defaults
+
+case "$1" in
+  "start")
+    echo "Starting weewx..."
+    ${DOAS} ${WEEWX_BIN} ${WEEWX_CFG} --daemon --pidfile ${WEEWX_PID} &
+    #echo $! > ${WEEWX_PID}
+    echo "done"
+  ;;
+
+  "stop")
+    echo "Stopping weewx..."
+    if [ -f ${WEEWX_PID} ] ; then
+      kill `cat ${WEEWX_PID}`
+      rm ${WEEWX_PID}
+      echo "done"
+    else
+      echo "not running?"
+    fi
+  ;;
+
+  "restart")
+    echo "Restarting weewx..."
+    $0 stop
+    sleep 2
+    $0 start
+  ;;
+
+  *)
+    echo "$0 [start|stop|restart]"
+  ;;
+
+esac
+```
+
+Add `weewx` to `pkg_scripts=` in `/etc/rc.conf.local` and start it with
+
+```console
+$ doas rcctl start weewx
+```
+
+## Status text for APRSWXNET (aprs.fi)
+
+I do also send a status message which adds a nice link back to my weather
+website on
+[aprs.fi](https://aprs.fi/#!call=a%2FOE7DRT-13&timerange=3600&tail=3600).
+
+This is basically done with a python script run by cron every hour.
+
+```python
+#!/usr/bin/env python3
+
+"""sending aprs status packets for my weather station"""
+
+import aprslib
+
+
+def main():
+    """main func"""
+    AIS = aprslib.IS("OE7DRT-13", passwd="*****", port=14580)
+    AIS.connect()
+
+    AIS.sendall("OE7DRT-13>APRS,TCPIP*:>Weatherpage: https://wx.oe7drt.com\r\n")
+
+if __name__ == "__main__":
+    main()
+```
+
+```console
+$ crontab -l
+57 * * * * python3 /home/dominic/bin/aprs_sendstatus.py
+```
+
+