Docker image containing pigpiod. Can e.g. be used with node-red to access GPIOs on a Raspberry Pi by installing the package node-red-node-pi-gpiod.
Since this Docker image is based on the Linux distribution alpine, the image i very small (~6MB).
Usage(32bit system):
docker run -it -p 8888:8888 --device /dev/gpiochip0 zinen2/alpine-pigpiod
On 64bit system or if you hit access problems try running privileged:
docker run -it -p 8888:8888 --privileged zinen2/alpine-pigpiod
Note that this container must run on the Raspberry Pi itself. But the GPIOs is accessible for other devices on the network at port 8888.
pigpiod is a Linux daemon that launches pigpio. pigpio and pigpiod is from the same creator. pigpio is a library for the Raspberry Pi which allows control of the General Purpose Input Outputs (GPIO).
As default you should use no tag or latest. It should not be necessary to specify the architecture of the board. When pulling an image docker will automatic try to download the right image for you.
But in case docker fails at this the tags below can be used. I had to specify it to work with belenaCloud.
E.g. for running on Raspberry Pi 1 this worked for me: docker run -it -p 8888:8888 --device /dev/gpiochip0 zinen2/alpine-pigpiod:arm32v6
| Device Name | Docker image tag | Tested?* ✔/❌ | pigpio version tested |
|---|---|---|---|
| Raspberry Pi (1, Zero, Zero W) | zinen2/alpine-pigpiod:arm32v6 | ✔ yes, works on rpi1 | 76 |
| Raspberry Pi 2 | zinen2/alpine-pigpiod:latest | ✔ yes, works #19 | 79 |
| Raspberry Pi 3 (32bit) | zinen2/alpine-pigpiod:latest | ✔ yes, works | 76, 78 |
| Raspberry Pi 3 (64bit) | zinen2/alpine-pigpiod:latest | ✔ yes, works | 78 |
| Raspberry Pi 4 | zinen2/alpine-pigpiod:latest | ✔ yes, works | 78 |
| Raspberry Pi 5 | zinen2/alpine-pigpiod:latest | ❌ unconfirmed | N/A |
Some problems can also be fixed by running the container privileged. In that case you can try this docker run -it -p 8888:8888 --privileged zinen2/alpine-pigpiod
*If you test it on your hardware, please respond back if it worked. By issue or pull request to update the list above.
It is possible to pull a specific version via. eg. docker pull zinen2/alpine-pigpiod:pigpio-v78 for pulling version 78. See list of tags available on docker hub.
The images are automatic updated when a new release of pigpio is posted at github releases.
start.sh is mostly a copy from another project and the creator’s repo is found here.