Dockerfile: RFC for dockerizing LLPcompose

Creates a docker image for use in a docker-compose
deployment based on the python-2.7 baseimage.

Instead of looking for "header_override.html" in
the parent directory, it changes to look in the
../extra_templates directory.

Change-Id: I3e65fc5c41ba1ad12881061352be0567f8e49e6b

4 files changed, 61 insertions, 1 deletions

diff --git a/Dockerfile.python b/Dockerfile.python
new file mode 100644
index 0000000..815f3f1
--- /dev/null
+++ b/Dockerfile.python
@@ -0,0 +1,28 @@
+# There is no base django image and instead they
+#  suggest using the python base image.  We're
+#  going with the Debian Stretch base python 2.x
+#  option for now as it's closest to what we
+#  currently run
+FROM python:2.7
+
+ENV GUNICORN_WORKERS 4
+ENV WSGI_SCRIPT ${WSGI:-wsgi_production:application}
+ENV LLP_PORT ${LLP_PORT:-8000}
+ENV SITE_NAME ${SITE_NAME:-Protected Downloads}
+ENV DJANGO_SETTINGS_MODULE ${DJANGO_SETTINGS_MODULE:-settings_production}
+
+EXPOSE 8000
+VOLUME /srv
+
+ADD ./requirements.txt /tmp/requirements.txt
+ADD docker_init.sh /bin/docker_init.sh
+RUN chmod 755 /bin/docker_init.sh
+
+# install reqs
+RUN pip install -r /tmp/requirements.txt
+# add this manually for the docker environment
+RUN pip install gunicorn
+
+WORKDIR /srv/project
+
+CMD /bin/docker_init.sh
diff --git a/docker_init.sh b/docker_init.sh
new file mode 100644
index 0000000..45dac22
--- /dev/null
+++ b/docker_init.sh
@@ -0,0 +1,26 @@
+#!/bin/sh
+
+# This script is meant to be run inside of a docker
+#  container.  It takes care of some housekeeping
+#  commands before the app is started by gunicorn
+#  and set to run on port 8000.
+
+cd /srv/project
+
+./manage.py migrate --noinput
+./manage.py collectstatic --noinput
+
+# These are set by the Dockerfile or at container run time
+# GUNICORN_WORKERS
+# WSGI_SCRIPT
+# DJANGO_SETTINGS_MODULE
+# LLP_PORT
+
+# These should all be present as environment variables from
+#  the Dockerfile.
+gunicorn -w$GUNICORN_WORKERS \
+  --pythonpath /srv/project \
+  -e DJANGO_SETTINGS_MODULE="$DJANGO_SETTINGS_MODULE" \
+  -e SITE_NAME="$SITE_NAME" \
+  -b 0.0.0.0:$LLP_PORT \
+  $WSGI_SCRIPT
diff --git a/settings.py b/settings.py
index 8f71885..c1c6192 100644
--- a/settings.py
+++ b/settings.py
@@ -6,6 +6,9 @@ from version import VERSION
 
 DEBUG = True
 
+USE_X_FORWARDED_HOST=True
+SECURE_PROXY_SSL_HEADER = ('HTTP_X_FORWARDED_PROTO', 'https')
+
 PROJECT_ROOT = os.path.dirname(os.path.abspath(__file__))
 ROOT_DIR = os.path.split(PROJECT_ROOT)[-1]
 ROOT_PATH = os.path.dirname(os.path.abspath(__file__))
diff --git a/settings_production.py b/settings_production.py
index 8129db1..d0702bc 100644
--- a/settings_production.py
+++ b/settings_production.py
@@ -27,7 +27,10 @@ for p in SERVED_PATHS + [UPLOAD_PATH]:
 # allow local override of default page styling
 if os.path.exists(os.path.join(DEPLOYMENT_DIR, 'header_override.html')):
     BASE_PAGE = 'header_override.html'
-    TEMPLATE_DIRS += (DEPLOYMENT_DIR,)
+    #TEMPLATE_DIRS += (DEPLOYMENT_DIR,)
+    for t in TEMPLATES:
+        if t.has_key("DIRS"):
+            t["DIRS"].append( DEPLOYMENT_DIR )
 
 # allow site specific overrides for secrets
 if os.path.exists(os.path.join(DEPLOYMENT_DIR, 'secrets.py')):