added core

core/build.sh

@@ -0,0 +1,21 @@
+#!/usr/bin/bash
+# export DOCKER_BUILDKIT=1
+docker run -d --rm --name www -p80:80 -v/root/kopano-docker/dist:/usr/local/apache2/htdocs httpd
+docker build --no-cache --progress=plain -t core .
+docker build -t core .
+docker run --rm -it --name core -p8081:80 core bash
+docker logs -f core
+docker exec -it core bash
+docker run --rm -it ubuntu:20.04
+
+docker kill core
+docker rm core
+
+docker container ls 
+docker container prune
+docker image ls
+docker image prune -a -f
+
+# docker login --username baloan --password 'yZBCUs5&@?:.'
+# docker tag -t core:latest ...
+# docker push