django.db.utils.OperationalError: attempt to write a readonly database - django

Question

i'm trying to deploy my first web app.
I'm using django + docker + nginx + uwsgi. Trying to deploy firstly in my laptop.
When i'm run my web application using django server everything ok, also it looks ok when i'm trying start web app with docker without nginx, but when i'm using with nginx proxy have a problem with writing data to DB (login/logout user sessions). If i go only to read pages, web app working fine with static files and crashing during user session changes (log in/log out)
Problem with rights of my default database
issue picture
app_1 | Internal Server Error: /logout/
app_1 | Traceback (most recent call last):
app_1 | File "/usr/local/lib/python3.8/site-packages/django/db/backends/utils.py", line 84, in _execute
app_1 | return self.cursor.execute(sql, params)
app_1 | File "/usr/local/lib/python3.8/site-packages/django/db/backends/sqlite3/base.py", line 413, in execute
app_1 | return Database.Cursor.execute(self, query, params)
app_1 | sqlite3.OperationalError: attempt to write a readonly database
(venv) yhobby#hp-probook-450-g5:~/PycharmProjects/web_naas$ ls -la
total 52
drwxrwsrwx 8 www-data yhobby 4096 Nov 19 15:16 .
drwsrwsrwt 9 yhobby yhobby 4096 Nov 18 16:09 ..
drwxrwsrwx 6 www-data yhobby 4096 Nov 19 13:59 app
-rwxrwxrwx 1 yhobby yhobby 293 Nov 19 14:51 docker-compose-deploy.yml
-rwxrwxrwx 1 yhobby yhobby 202 Nov 19 11:35 docker-compose.yml
-rwxrwxrwx 1 yhobby yhobby 701 Nov 19 15:16 Dockerfile
drwxrwsr-x 8 yhobby yhobby 4096 Nov 19 09:06 .git
-rw-rw-r-- 1 yhobby yhobby 100 Nov 19 08:40 .gitignore
drwxrwsr-x 3 yhobby yhobby 4096 Nov 19 15:28 .idea
drwxrwsrwx 2 yhobby yhobby 4096 Nov 19 15:11 proxy
-rwxrwxrwx 1 yhobby yhobby 29 Nov 18 16:09 README.md
drwxrwsrwx 2 yhobby yhobby 4096 Nov 18 18:40 scripts
drwxrwsrwx 6 yhobby yhobby 4096 Nov 18 16:13 venv
(venv) yhobby#hp-probook-450-g5:~/PycharmProjects/web_naas/app$ ls -la
total 17820
drwxrwsrwx 6 www-data yhobby 4096 Nov 19 13:59 .
drwxrwsrwx 8 www-data yhobby 4096 Nov 19 15:16 ..
drwxrwsrwx 7 yhobby yhobby 4096 Nov 19 12:13 dashboard
-rwxrwxrwx 1 yhobby yhobby 131072 Nov 19 13:59 db.sqlite3
drwxrwsrwx 8 yhobby yhobby 4096 Nov 19 08:43 .git
-rwxrwxrwx 1 yhobby yhobby 92 Nov 19 08:43 .gitignore
-rwxrwxrwx 1 yhobby yhobby 18075648 Oct 2 06:15 ip_core.db
-rwxrwxrwx 1 yhobby yhobby 660 Nov 19 08:43 manage.py
drwxrwsrwx 3 yhobby yhobby 4096 Nov 19 14:48 naas
-rwxrwxrwx 1 yhobby yhobby 29 Nov 19 08:43 README.md
-rwxrwxrwx 1 yhobby yhobby 187 Nov 19 08:43 requirements.txt
drwxrwsrwx 4 yhobby yhobby 4096 Nov 19 12:06 static
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.sqlite3',
'NAME': BASE_DIR / 'db.sqlite3',
},
'ip_core': {
'ENGINE': 'django.db.backends.sqlite3',
'NAME': BASE_DIR / 'ip_core.db',
}
}
web_naas/Dockerfile # root folder web_naas/
# pull official base image
FROM python:3.8-alpine
# set environment variables
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1
ENV PATH="/scripts:${PATH}"
# install dependencies
COPY app/requirements.txt /requirements.txt
RUN apk add --update --no-cache --virtual .tmp gcc libc-dev linux-headers
RUN pip install -r /requirements.txt
RUN apk del .tmp
# copy directory
RUN mkdir /app
COPY ./app /app
# set work directory
WORKDIR /app
# copy directory
COPY ./scripts /scripts
RUN chmod +x /scripts/*
RUN chmod 777 /app/db.sqlite3
RUN mkdir -p /vol/web/media
RUN mkdir -p /vol/web/static
RUN adduser -D user
RUN chown -R user:user /vol
RUN chmod -R 777 /vol/web
USER user
CMD ["entrypoint.sh"]
web_naas/docker-compose.yml # root folder
version: '3.7'
services:
app:
build: .
ports:
- "8000:8000"
volumes:
- ./app:/app
command: sh -c "python manage.py runserver 0.0.0.0:8000"
environment:
- DEBUG=1
docker-compose-deploy.yml
version: '3.7'
services:
app:
build: .
volumes:
- static_data:/vol/web
environment:
- DEBUG=1
proxy:
build:
context: ./proxy
volumes:
- static_data:/vol/static
ports:
- "8080:8080"
depends_on:
- app
volumes:
static_data:
web_naas/proxy/Dockerfile
FROM nginxinc/nginx-unprivileged:1-alpine
COPY ./default.conf /etc/nginx/conf.d/default.conf
COPY ./uwsgi_params /etc/nginx/uwsgi_params
USER root
RUN mkdir -p /vol/static
RUN chmod 777 /vol/static
USER nginx
web_naas/proxy/default.conf
server {
listen 8080;
location /static {
alias /vol/static;
}
location / {
uwsgi_pass app:8000;
include /etc/nginx/uwsgi_params;
}
}
web_naas/scripts/entrypoint.sh
#!/bin/sh
set -e
python manage.py collectstatic --noinput
uwsgi --socket :8000 --master --enable-threads --module naas.wsgi

Answer 1

The problem was a lack of rights inside the docker container
Added the following line inside the file
web_naas/Dockerfile # root folder
RUN chown -R user:user /app