For alpine:3.14, PDAL is included in the alpine package sources, so only
RUN apk update && apk add pdal
is necessary to install PDAL
Repo which contains a Dockerfile to compile PDAL - Point Data Abstraction Library. The related docker image is created and available for download from here:
https://hub.docker.com/r/mundialis/docker-pdal
This docker image is based on Alpine Linux.
It is build with
docker build . -t docker-pdal