Rg/dqt in dokku

CHECKS

@@ -0,0 +1,12 @@
+# Dokku checks
+# Require that the app is up (URL returns 200) before migrating traffic.
+#
+# Wait 10 seconds between checks
+WAIT=10
+# Timeout after a minute
+TIMEOUT=6
+# Attempt checks 10 times
+ATTEMPTS=10
+
+# Check root URL
+/

Dockerfile

@@ -0,0 +1,47 @@
+# See the upstream documentation for how this nginx+uwsgi Python image works
+# It's based on Debian 11 Bullseye which is supported until August 31st, 2026
+#
+# https://github.com/tiangolo/uwsgi-nginx-docker
+#
+FROM tiangolo/uwsgi-nginx:python3.12
+
+# Create virtualenv
+RUN python3 -m venv /app/.ve
+RUN . /app/.ve/bin/activate && pip install --no-cache-dir --upgrade pip wheel setuptools
+
+# Copy in setup & install requirements
+COPY tools/ /app/tools/
+COPY lib360dataquality/ /app/lib360dataquality/
+COPY setup.py requirements_cove.txt LICENCE AUTHORS /app/
+
+RUN . /app/.ve/bin/activate && pip install --no-cache-dir --upgrade -r /app/requirements_cove.txt
+
+# Copy in the application code
+COPY cove/ /app/cove/
+
+# The dqt expects to exist within a git repo
+# in order to display the version
+COPY .git/ /app/.git/
+
+# The nginx+uwsgi image expects uwsgi config file at /app/uwsgi.ini
+# prestart.sh script runs before app startup
+COPY uwsgi.ini /app/uwsgi.ini
+COPY prestart.sh /app/prestart.sh
+
+# Nginx Maximum file upload size - what's the biggest 360 spreadsheet?
+# https://github.com/tiangolo/uwsgi-nginx-docker?tab=readme-ov-file#custom-max-upload-size
+ENV NGINX_MAX_UPLOAD=1G
+
+# Place the database in a persistent volume.
+# Note that Dokku must also be configured to mount
+# the dir as persistent storage:
+# https://dokku.com/docs/advanced-usage/persistent-storage/
+# e.g.
+# > dokku storage:ensure-directory --chown root dqt-persist-data
+# > dokku storage:mount <dqt-app> /var/lib/dokku/data/storage/dqt-persist-data:/data
+# (--chown root because this container runs the app as root)
+VOLUME /data
+ENV DB_NAME=/data/db.sqlite3
+ENV MEDIA_ROOT=/data/media/
+
+# Healthchecks are handled by Dokku, see CHECKS file.

cove/cove_project/settings.py

@@ -8,6 +8,7 @@
 env = environ.Env(  # set default values and casting
     DB_NAME=(str, os.path.join(BASE_DIR, 'db.sqlite3')),
     SENTRY_DSN=(str, ''),
+    MEDIA_ROOT=(str, os.path.join(BASE_DIR, 'media')),
 )
 
 # We use the setting to choose whether to show the section about Sentry in the
@@ -32,7 +33,7 @@
 # We can't take MEDIA_ROOT and MEDIA_URL from cove settings,
 # ... otherwise the files appear under the BASE_DIR that is the Cove library install.
 # That could get messy. We want them to appear in our directory.
-MEDIA_ROOT = os.path.join(BASE_DIR, 'media')
+MEDIA_ROOT = env('MEDIA_ROOT')
 MEDIA_URL = '/media/'
 
 SECRET_KEY = settings.SECRET_KEY

prestart.sh

@@ -0,0 +1,9 @@
+#!/bin/sh
+set -eu
+
+# Run DB migrations & collect static before starting the app
+cd /app/cove/
+. /app/.ve/bin/activate
+set -x
+python3 manage.py migrate
+python3 manage.py collectstatic

uwsgi.ini

@@ -0,0 +1,25 @@
+[uwsgi]
+wsgi-file=/app/cove/cove_project/wsgi.py
+pythonpath=/app/cove
+virtualenv=/app/.ve
+
+# ==== Tuning ====
+# Enable Python threads
+# https://github.com/OpenDataServices/cove/issues/486
+enable-threads = true
+# At least two workers
+cheaper = 2
+# Start off with two workers
+cheaper-initial = 2
+# Spawn up to 100 workers as needed
+workers = 100
+# One thread per process so they can be killed without affecting other requests
+threads = 1
+max-requests = 1024
+memory-report = true
+
+limit-as = 9000
+harakiri = 6000
+
+# If memory usage of a worker > 250MB at the *end* of a request, then reload it
+reload-on-as = 250