Add some basic endpoints to the config app backend

rename files to avoid overlap with quay app

config_app/_init_config.py

@@ -0,0 +1,39 @@
+import os
+import re
+import subprocess
+
+
+ROOT_DIR = os.path.dirname(os.path.abspath(__file__))
+CONF_DIR = os.getenv("QUAYCONF", os.path.join(ROOT_DIR, "conf/"))
+STATIC_DIR = os.path.join(ROOT_DIR, 'static/')
+STATIC_LDN_DIR = os.path.join(STATIC_DIR, 'ldn/')
+STATIC_FONTS_DIR = os.path.join(STATIC_DIR, 'fonts/')
+TEMPLATE_DIR = os.path.join(ROOT_DIR, 'templates/')
+
+
+# TODO(config): Remove this external folder dependency
+EXTERNAL_REPO_REQUIRE_PATH = os.path.dirname(ROOT_DIR)
+
+
+def _get_version_number_changelog():
+  try:
+    with open(os.path.join(ROOT_DIR, 'CHANGELOG.md')) as f:
+      return re.search(r'(v[0-9]+\.[0-9]+\.[0-9]+)', f.readline()).group(0)
+  except IOError:
+    return ''
+
+
+def _get_git_sha():
+  if os.path.exists("GIT_HEAD"):
+    with open(os.path.join(ROOT_DIR, "GIT_HEAD")) as f:
+      return f.read()
+  else:
+    try:
+      return subprocess.check_output(["git", "rev-parse", "HEAD"]).strip()[0:8]
+    except (OSError, subprocess.CalledProcessError):
+      pass
+  return "unknown"
+
+
+__version__ = _get_version_number_changelog()
+__gitrev__ = _get_git_sha()