Add documentation on deployment

Author: VikSil

README.md

@@ -141,6 +141,11 @@ to
     check_request_enabled = Signal('request')
 
 
+## Deployment on pythonanywhere
+
+[Here](https://github.com/VikSil/howtoquant-backend/blob/trunk/howtoquant/docs/deployment.md) is a tutorial on how to deploy this project on pythonanywhere web-hosting service.
+
+
 ## Past sprints
 
 Code and release notes of each of the past releases can be found in the respective branch of this repo, as per table below.

howtoquant/docs/deployment.md

@@ -0,0 +1,267 @@
+# Deployment instructions
+
+This manual contains instructions on how to deploy the repo on pythonanywhere hosting service. For full functionality always-on script are required to run microservices via cron jobs. Always-on scripts are a paid-for feature of pythonanywhere. The minimum custom bundle allows for one always-on script, one website, 2000s CPU per 24 hours and 1 GB of disk storage, at the price of 5 USD per month. This should be sufficient to host a fully functional version of this website.
+
+For the purposes of this manual it is assumed that the pythonanywhere username is "*__howtoquant__*"
+
+Some of the information in this manual is from [this](https://www.youtube.com/watch?v=xtnUwvjOThg) useful tutorial, with some project-specific details added.
+
+## Setting up the repo
+
+1. On pythonanywhere **Dashboard**, click `$Bash` button in the `New console section`. This will open a new Bash console.
+1. Clone the repository into pythonanywhere with this command:
+
+        git clone https://github.com/VikSil/howtoquant-backend
+
+At this point the usage should be around 3s CPU and 14MB of storage.
+
+3. Create vitrual environment with this command:
+
+       mkvirtualenv --python=/usr/bin/python3.10 venv
+
+At this point the usage should be around 41s CPU and 70MB of storage.
+
+4. Navigate into the project directory with this command:
+
+       cd how*
+
+5. Install all of the project dependencies with this command (this will take 5-10 minutes to complete):
+
+       pip install -r requirements.txt
+
+At this point the usage should be around 100s CPU and 370MB of storage.
+
+## Creating Web application
+
+1. Open pythonanywhere **Web** dashboard. 
+1. Click on `Add a new web app` button.
+1. Choose the default domain name and click `Next` (domain name is configured on the front-end side via Netlify).
+1. Choose **Manual configuration** - the screen will change.
+1. Choose **Python 3.10** - the screen will change.
+1. Click `Next` button - the Web dashboard will open.
+1. In the `Virtualenv` section of the Web dashboard add path to virtualenv. Click the red link, type `venv` into the box and confirm.
+1. In the `Code` section above click on the **WSGI configuration file** link - the file will open
+1. Replace the content of the file with the following code
+
+        import os
+        import sys
+
+        path = '/home/howtoquant/howtoquant-backend'
+        if path not in sys.path:
+            sys.path.append(path)
+
+        os.environ['DJANGO_SETTINGS_MODULE'] = 'howtoquant.settings'
+
+        from django.core.wsgi import get_wsgi_application
+        application = get_wsgi_application()
+
+1. Click `Save` button.
+
+## Adding configuration and monkey-fixes
+
+1. In venv console execute the following commands:
+
+        cd how*
+        mkdir logs
+        mkdir .envs
+        cd .envs
+        touch .env_prod
+        nano .env_prod
+
+1. In the editing screen that will open, paste the environment variables.
+        ENVIRONMENT=production
+
+        DB_ENGINE=django.db.backends.mysql
+        DB_NAME=howtoquant$[database]
+        DB_USER=howtoquant
+        DB_PASSWORD=[password]
+        DB_HOST=howtoquant.mysql.pythonanywhere-services.com
+        DB_PORT=3306
+
+        POLYGON_API_KEY=[api_key]
+
+        SECRET_KEY=[secret_key]
+
+1. Press `Ctrl + X`, then `Y`, then `Enter`.
+1. Execute the following commands:
+
+        cd ..
+        nano settings.py
+
+1. In the editing screen that will open:
+
+* switch line
+
+       env.read_env(BASE_DIR /'howtoquant/.envs/.env_dev')
+
+  to
+
+       env.read_env(BASE_DIR /'howtoquant/.envs/.env_prod')
+
+* switch line
+
+       ALLOWED_HOSTS = []
+
+  to
+
+       ALLOWED_HOSTS = ["127.0.0.1",
+            'howtoquant.mysql.pythonanywhere-services.com',
+            'howtoquant.pythonanywhere.com']
+
+* comment out line
+
+       CORS_ALLOWED_ORIGINS = ['http://localhost:5173',]
+
+  and uncomment
+
+        CORS_ORIGIN_ALLOW_ALL = True
+
+6. Press `Ctrl + X`, then `Y`, then `Enter`.
+
+1. Execute the following commands:
+
+        cd ~
+        cd .virtualenvs/venv/lib/python3.10/site-packages/corsheaders
+        nano checks.py
+
+1. In the editing screen that will open switch line
+
+       from collections import Sequence
+
+    to
+
+       from collections.abc import Sequence
+
+1. Press `Ctrl + X`, then `Y`, then `Enter`.
+
+1. Execute the following command:
+
+        nano signals.py
+
+1. In the editing screen that will open switch line
+
+       check_request_enabled = Signal(providing_args=['request'])
+
+    to
+
+       check_request_enabled = Signal('request')
+
+1. Press `Ctrl + X`, then `Y`, then `Enter`.
+
+## Creating and seeding the database
+
+1. Open pythonanywhere **Databases** dashboard.
+1. If you have previously created a database for the website, you will need to reset it (otherwise, proceed to step 4.). Click on the database name in the `Your databases` section - MySQL console will open.
+1. Drop the database with the following query, where [database] is the database name. These will be identical to the link that you clicked in the previous step.
+
+        drop database howtoquant$[database]
+
+1. In `Create database` section of **Databases** dashboard, enter a new database name and click `Create` button. The new database will appear in the list above.
+1. Click on the database name in the `Your databases` section - MySQL console will open.
+1. Switch back to the venv Bash console and run the following commands:
+
+        cd ~
+        cd how*
+        python manage.py migrate
+
+1. Switch back to the MySQL console and run in the contents of vanilla scripts in the following sequence:
+
+* classifiers\db\db_setup_classifiers.sql
+* classifiers\db\vanilla_seed_classifiers.sql
+* staticdata\db\db_setup_staticdata.sql
+* staticdata\db\vanilla_seed_staticdata.sql
+* marketdata\db\db_setup_marketdata.sql
+* marketdata\db\vanilla_seed_marketdata.sql
+* accounting\db\db_setup_accounting.sql
+* accounting\db\vanilla_seed_accounting.sql
+* config\db\db_setup_config.sql
+
+## Setting up always-on script
+
+1. Open pythonanywhere **Tasks** dashboard.
+1. In the `Always-on tasks` section add a new always-on task: 
+
+        source /home/howtoquant/.virtualenvs/venv/bin/activate && cd how* && python manage.py runcrons
+
+1. Click `Create` button.
+1. Click on the `View task log` button (first in `Actions` column) - this will open the log file.
+1. After the script has started, it should continously log every 60 seconds output similar to:
+
+        Sep  2 22:57:55 Running Crons
+        Sep  2 22:57:55 ========================================
+        Sep  2 22:57:55 [✔] config.rollforward
+        Sep  2 22:57:55 [✘] config.flow_booker
+        Sep  2 22:57:55 [✔] config.position_manager
+        Sep  2 22:57:55 [✔] config.cash_manager
+        Sep  2 22:57:55 [✔] config.asset_manager
+
+## Final step
+
+Once all of the above are done, click the big, green `Reload` button on the Web dashboard and wait for it to reload.
+
+## Post-deployment tests
+
+1. Run the following queries in the MySQL console:
+
+        SELECT * FROM staticdata_identifier; -- should return three tickers
+        SELECT * FROM config_msg_queue; -- should return an empty set
+
+1. Navigate to `https://howtoquant.pythonanywhere.com/accounting/api/asset_ladder` - this should return a JSON with status `OK` and `null` dataset on `asset_ladder` key.
+
+1. Navigate to `https://howtoquant.pythonanywhere.com/accounting/api/cash_ladder?end_date=[date]`, where [date] is T+2 in format YYYY-MM-DD - this should return a JSON with status `OK` and `null` dataset on `asset_ladder` key.
+
+1. Navigate to `https://howtoquant.pythonanywhere.com/classifiers/api/countries` - this should return a JSOn with a list of active countries.
+
+1. Navigate to `https://howtoquant.pythonanywhere.com/staticdata/api/equities` - this should return a JSON with three equities.
+
+1. Send a PUT request to `https://howtoquant.pythonanywhere.com//staticdata/api/instruments` with the following body:
+
+        {
+            "ticker":"NVDA",
+            "service":"polygon.io"
+        }
+
+1. Navigate to `https://howtoquant.pythonanywhere.com/staticdata/api/equities` - this should now return a JSON with four equities, including NVDIA.
+
+1. Send a PUT request to `https://howtoquant.pythonanywhere.com/marketdata/api/prices/new` with the following body:
+
+        {
+            "tickers":["NVDA"],
+            "date_from": "2024-08-01",
+            "date_to": "2024-09-01"
+        }
+
+    this should return a download_id.
+
+1. Send a PUT request to `https://howtoquant.pythonanywhere.com/marketdata/api/prices/download` with the following body:
+
+        {
+            "download_id": [download_id from the previous step],
+            "options":"overrideall"
+        }
+
+    this should return result "OK"
+
+1. Navigate to `https://howtoquant.pythonanywhere.com/marketdata/api/prices` - this should return a JSON with the saved  prices
+
+1. Send a PUT request to `https://howtoquant.pythonanywhere.com/accounting/api/trades` with the following body:
+
+        {
+            "ticker":"TSLA",
+            "direction":"B",
+            "quantity": 10,
+            "price":200,
+            "book_name": "Long Short",
+            "strategy_name": "Long Only",
+            "counterparty": "Counterparty"
+        }
+
+    this should return trade details
+
+1. Navigate to `https://howtoquant.pythonanywhere.com/accounting/api/trades` - this should return a JSON with the saved trade
+
+1. Wait for up to 10 minutes for the services to process the trade into ladders.
+
+1. Navigate to `https://howtoquant.pythonanywhere.com/accounting/api/asset_ladder` - this should now return a JSON with a new record in the ladder.
+
+1. Navigate to `https://howtoquant.pythonanywhere.com/accounting/api/cash_ladder?end_date=[date]`, where [date] is T+2 in format YYYY-MM-DD - this should now return a JSON with a new record in the ladder.