This repo provides two Docker images for QGIS: qgis-build and qgis-exec.
The qgis-build image is used for building QGIS from source. Debian packages of QGIS are created.
The qgis-exec image is used for executing QGIS Server. The image is built either from official
QGIS packages downloaded from http://qgis.org/debian or from local QGIS packages generated using the
qgis-build image.