creating entropy-server image, inside builder for convenience

entropy-server/Dockerfile

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+FROM sabayon/base-amd64
+
+MAINTAINER mudler <mudler@sabayonlinux.org>
+
+# Set locales to en_US.UTF-8
+ENV LC_ALL=en_US.UTF-8
+
+# Perform post-upgrade tasks (mirror sorting, updating repository db)
+ADD ./script/post-upgrade.sh /post-upgrade.sh
+RUN /bin/bash /post-upgrade.sh  && rm -rf /post-upgrade.sh
+
+# Set environment variables.
+ENV HOME /root
+
+# Define working directory.
+WORKDIR /
+
+# Define standard volumes
+VOLUME ["/usr/portage", "/usr/portage/distfiles", "/usr/portage/packages", "/var/lib/entropy/client/packages"]
+
+# Define default command.
+ENTRYPOINT ["/usr/bin/eit"]

entropy-server/script/post-upgrade.sh

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+#!/bin/bash
+
+PACKAGES_TO_REMOVE=(
+)
+
+FILES_TO_REMOVE=(
+   "/.viminfo"
+   "/.history"
+   "/.zcompdump"
+   "/var/log/emerge.log"
+   "/var/log/emerge-fetch.log"
+)
+
+PACKAGES_TO_ADD=(
+    "sys-apps/entropy-server"
+)
+
+rsync -av -H -A -X --delete-during "rsync://rsync.at.gentoo.org/gentoo-portage/licenses/" "/usr/portage/licenses/"
+ls /usr/portage/licenses -1 | xargs -0 > /etc/entropy/packages/license.accept
+
+# upgrading machine
+equo up && equo u
+
+# Handling install/removal of packages specified in env
+equo i "${PACKAGES_TO_ADD[@]}"
+
+# Merging defaults configurations
+echo -5 | equo conf update
+
+# Writing package list file
+equo q list installed -qv > /etc/sabayon-pkglist
+
+# Cleaning equo package cache
+equo cleanup
+
+# Remove scripts
+rm -rf /post-upgrade.sh
+
+# Cleanup
+rm -rf "${FILES_TO_REMOVE[@]}"