Added Dockerfile and Entrypoint for containerization

Dockerfile

@@ -0,0 +1,17 @@
+FROM centos:7
+MAINTAINER Christian Eichelmann "christian@crapworks.de"
+
+ENV CEPH_VERSION jewel
+
+# Install Ceph
+RUN rpm --import 'https://download.ceph.com/keys/release.asc'
+RUN rpm -Uvh http://download.ceph.com/rpm-${CEPH_VERSION}/el7/noarch/ceph-release-1-1.el7.noarch.rpm
+RUN yum install -y epel-release && yum clean all
+RUN yum install -y ceph python27 python-pip && yum clean all
+
+COPY . /cephdash
+WORKDIR /cephdash
+RUN pip install -r requirements.txt
+
+ENTRYPOINT ["/cephdash/contrib/docker/entrypoint.sh"]
+CMD ["ceph-dash.py"]

app/__init__.py

@@ -1,6 +1,7 @@
 #!/usr/bin/env python
 # -*- coding: utf-8 -*-
 
+import os
 import json
 
 from os.path import dirname
@@ -32,6 +33,16 @@ def __init__(self):
         configfile = join(dirname(dirname(__file__)), 'config.json')
         self.update(json.load(open(configfile), object_hook=self._string_decode_hook))
 
+        if os.environ.get('CEPHDASH_CEPHCONFIG', False):
+            self['ceph_config'] = os.environ['CEPHDASH_CEPHCONFIG']
+        if os.environ.get('CEPHDASH_KEYRING', False):
+            self['keyring'] = os.environ['CEPHDASH_KEYRING']
+        if os.environ.get('CEPHDASH_ID', False):
+            self['client_id'] = os.environ['CEPHDASH_ID']
+        if os.environ.get('CEPHDASH_NAME', False):
+            self['client_name'] = os.environ['CEPHDASH_NAME']
+
+
 app.config['USER_CONFIG'] = UserConfig()
 
 # only load influxdb endpoint if module is available

contrib/docker/entrypoint.sh

@@ -0,0 +1,32 @@
+#!/usr/bin/env sh
+
+CEPHCONFIG="/etc/ceph/ceph.conf"
+CEPHKEYRING="/etc/ceph/keyring"
+
+echo "# REQUIRED ENVIRONMENT VARIABLES"
+echo "* CEPHMONS (comma separated list of ceph monitor ip addresses)"
+echo "* KEYRING (full keyring to deploy in docker container)"
+echo ""
+echo "# OPTIONAL ENVIRONMENT VARIABLES"
+echo "* NAME (keyring name to use)"
+echo "* ID (keyting id to use)"
+echo ""
+
+echo "${KEYRING}" > ${CEPHKEYRING}
+echo -e "[global]\nmon host = ${CEPHMONS}" > ${CEPHCONFIG}
+
+echo "# CEPH STATUS"
+ceph -s
+
+export CEPHDASH_CEPHCONFIG="${CEPHCONFIG}"
+export CEPHDASH_KEYRING="${CEPHKEYRING}"
+
+if [ -n "${NAME}" ]; then
+    export CEPHDASH_NAME="${NAME}"
+fi
+
+if [ -n "${ID}" ]; then
+    export CEPHDASH_ID="${ID}"
+fi
+
+python $*