[GRASS-git] [OSGeo/grass] 25f603: introduce docker multistage build to alpine image ...

[mmacata]

  Branch: refs/heads/releasebranch_7_8
  Home:   https://github.com/OSGeo/grass
  Commit: 25f6035c2f759d56067e44b9943b1915fd822223
      https://github.com/OSGeo/grass/commit/25f6035c2f759d56067e44b9943b1915fd822223
  Author: mmacata <mmacata at users.noreply.github.com>
  Date:   2020-01-09 (Thu, 09 Jan 2020)

  Changed paths:
    M docker/alpine/Dockerfile_alpine

  Log Message:
  -----------
  introduce docker multistage build to alpine image (#276)

introduce docker multistage build to alpine image, reducing significantly the image size