planewave_mountd interfaces with the PWI4 http api and exposes a
coherent telescope control interface via Pyro.
tel is a commandline utility for controlling the telescope.
Configuration is read from json files that are installed by default to /etc/mountd.
A configuration file is specified when launching the server, and the tel frontend will search this location when launched.
{
"daemon": "clasp_telescope", # Run the server as this daemon. Daemon types are registered in `rockit.common.daemons`.
"log_name": "lmountd@clasp", # The name to use when writing messages to the observatory log.
"control_machines": ["CLASPTCS"], # Machine names that are allowed to control (rather than just query) state. Machine names are registered in `rockit.common.IP`.
"pwi_host": "localhost", # Host name of the PWI4 server. This should generally stay as localhost.
"pwi_port": 8220, # Port of the PWI server.
"pwi_timeout": 0.5, # Communication timeout with the PWI server (in seconds).
"slew_poll_interval": 0.5, # Interval to poll the mount for slew completion (in seconds)
"slew_timeout": 60, # Maximum time to slew from any position to any other position (in seconds)
"home_poll_interval": 5, # Interval to poll the mount for homing completion (in seconds)
"home_timeout": 60, # Maximum time to find home position (in seconds)
"ha_soft_limits": [-90, 90], # Allowed hour angle range in degrees
"dec_soft_limits": [-45, 90], # Allowed declination range in degrees
"park_positions": {
"stow": { # Positions that can be used with 'tel park'.
"desc": "general purpose park position", # Description reported by 'tel park'.
"alt": 50, # Altitude in degrees.
"az": 0 # Azimuth in degrees.
}
}
}The automated packaging scripts will push 3 RPM packages to the observatory package repository:
| Package | Description |
|---|---|
| rockit-mount-planewave-server | Contains the lmountd server and systemd service file. |
| rockit-mount-planewave-client | Contains the tel commandline utility for controlling the telescope server. |
| rockit-mount-planewave-data-clasp | Contains the json configuration for the CLASP telescope. |
| rockit-mount-planewave-data-halfmetre | Contains the json configuration for the half metre telescope. |
| rockit-mount-planewave-data-sting | Contains the json configuration for the STING telescope. |
| python3-rockit-planewave-mount | Contains the python module with shared code. |
After installing packages, the systemd service should be enabled:
sudo systemctl enable --now planewave_mountd@<config>
where config is the name of the json file for the appropriate telescope.
Now open a port in the firewall:
sudo firewall-cmd --zone=public --add-port=<port>/tcp --permanent
sudo firewall-cmd --reload
where port is the port defined in rockit.common.daemons for the daemon specified in the config.
New RPM packages are automatically created and pushed to the package repository for each push to the master branch.
These can be upgraded locally using the standard system update procedure:
sudo yum clean expire-cache
sudo yum update
The daemon should then be restarted to use the newly installed code:
sudo systemctl restart planewave_mountd@<config>
The server and client can be run directly from a git clone:
./planewave_mountd config/clasp.json
MOUNTD_CONFIG_PATH=./config/clasp.json ./tel status