From c3f72d948e875cc5085c6ac682bbf225096e7517 Mon Sep 17 00:00:00 2001
From: Adam Miller <maxamillion@fedoraproject.org>
Date: Jan 03 2017 23:36:58 +0000
Subject: work in progress, need to add the cli component also


Signed-off-by: Adam Miller <maxamillion@fedoraproject.org>

---

diff --git a/flr/docker.py b/flr/docker.py
new file mode 100644
index 0000000..b35ac06
--- /dev/null
+++ b/flr/docker.py
@@ -0,0 +1,80 @@
+#!/usr/bin/env python2
+# -*- coding: utf-8 -*-
+
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
+
+""" docker module of flr """
+
+import docker
+
+class DockerClient(object):
+    """
+    docker module for flr
+
+    The aim of this object is to provide a library common solution to use-cases
+    for Fedora Release Engineering utilities
+    """
+
+    def __init__(self, docker_daemon=None, registry=None):
+        self.dc = docker.Client(base_url=docker_daemon)
+
+        if registry:
+            # Note: This will require the login credentials to pre-exist in
+            # the default path of ~/.dockercfg for the user this is running as
+            #
+            # FIXME - not sure if this is the best idea, maybe allow other auth
+            #         configs?
+            self.dc.login()
+
+
+    def split_repo(self, repo_name):
+        """
+        Split a docker repo uri into it's reponame and tag
+
+        :param repo_name: str, docker repo uri
+
+        :return: tuple, (image_repo, image_tag)
+        """
+
+        try:
+            image_repo, image_tag = repo_name.split(':')
+        except ValueError:
+            image_repo = repo_name
+            image_tag = None
+
+        return (image_repo, image_tag)
+
+    def copy(self, src_image, dest_image):
+        """
+
+        :param src_image: str, source docker image repo uri
+        :param dest_image: str, source docker image repo uri
+        """
+
+
+        src_repo, src_tag = self.split_repo(src_image)
+        dest_repo, dest_tag = self.split_repo(dest_image)
+
+        self.dc.pull(src_repo, tag=src_tag)
+
+        # We set 'force' here just as we would with 'docker tag' because often
+        # times RelEng is updating an image in-place and we need to actively
+        # overwrite the pre-existing base image for things like fedora:rawhide
+        self.dc.tag(src_image, dest_repo, tag=dest_tag, force=True)
+
+        self.dc.push(dest_image)
+
+
+# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4