Deployment¶
In order to maintain control over a group of devices in a consistent state, NUSTAR DCS suggests common rules and procedures for deployment of EPICS IOCs on these devices.
Note
This is a work in progress.
Raspberry Pi¶
All Raspberry Pi computers used in NUSTAR DCS should run the epicsian image provided by NUSTAR DCS. This image is generated using the standard pi-gen framework used to produce the official raspberrypi.org Raspbian images. The epicsian image installs Raspbian-lite on the SD-card and includes the EPICS base system including all required modules for the IOCs.
The current image can be found in this location:
lx-pool.gsi.de:/u/land/epics_stuff/images/
Two images are provided:
image_<date>-epicsian-modules.zip: Only EPICS base + modulesimage_<date>-epicsian-ioc.zip: EPICS base + modules + IOCs
In the future, more images with additional functionality may be provided. These images can be used on any Raspberry Pi computer available so far.
Pi-gen build process
Check out the pi-gen epicsian git repository:
git clone lx-pool.gsi.de:/u/bloeher/git-bare/epics/pi-gen.git
cd pi-gen
and change to the epics branch:
git checkout -b epics origin/epics
To build the epicsian image, a few prerequisites are required. These are detailed in the README.md included in the repository.
Configure the build by writing the config file:
echo "IMG_NAME=epicsian" > config
Then run the start.sh script (at best from within a multiplexed terminal session). This will start a docker container that runs the complete build process and takes approximately 1-2 hours. Upon successful completion, the zipped images can be found in a new directory deploy.