Caproto-in-a-box¶
Contents
Build a container with Buildah¶
To build a minimal container (based on Fedora) use the following bash script
#! /usr/bin/bash
set -e
set -o xtrace
buildah images
buildah containers
container=$(buildah from fedora)
buildah run $container -- dnf -y install python3 ipython3 python3-pip python3-numpy python3-netifaces
buildah run $container -- pip3 install caproto[standard]
# this is the thing you want to change to spawn your IOC
buildah config --cmd "python3 -m caproto.ioc_examples.simple --list-pvs" $container
buildah unmount $container
buildah commit $container caproto
Running containers with podman¶
By default ports are not forwarded out of the container, to do so run:
podman run -dt -p 5064:5064/udp -p 5064:5064/tcp caproto
Running a sandbox with podman¶
To generate a similar image, but for the bluesky collection stack:
#! /usr/bin/bash
set -e
set -o xtrace
container=$(buildah from fedora)
buildah run $container -- dnf -y install python3 ipython3 python3-pip g++ gcc python3-PyQt5 python3-matplotlib python3-devel python3-netifaces python3-h5py python3-scipy python3-numcodecs python3-pandas
buildah run $container -- pip3 install ophyd databroker bluesky caproto[standard]
buildah run $container -- pip3 uninstall pyepics
buildah commit $container bluesky
We can create a pod with private networking, our IOC and then attach to it via bluesky
podman pod create -n sandbox
podman run -dt --pod sandbox caproto
# this is unix / linux specefic
podman run --pod sandbox -ti -v /tmp/.X11-unix/:/tmp/.X11-unix/ -e DISPLAY bluesky ipython3
If everything worked right, you should now have a caproto IOC running in the pod and an IPython session running inside the pod with (networking wise) but still able to pop up X11 windows.