Apache Site Configuration
If the database needs to be served on the web, one tested solution is to use an apache web server.
Install apache, wsgi module, and set group and acl permissions
sudo apt-get update
sudo apt-get install apache2 libapache2-mod-wsgi-py3 acl
sudo a2enmod wsgi
sudo adduser www-data syslog
sudo adduser ubuntu syslog
sudo setfacl -d -m u:www-data:rwx /var/log/
sudo setfacl -d -m u:ubuntu:rwx /var/log/
Put the site configuration here: /etc/apache2/sites-available/001-alyx.conf
make sure the paths within the file match the alyx installation path.
update ServerName parameter
ServerName alyx.internationalbrainlab.orgit should match the
alyx/alyx/settings_lab.pyALLOWED_HOSTSparameter
Activate the website
sudo a2ensite
001-alyx-main
Restart the server, 2 commands are provided here for reference. Reload is recommended on a running production server as it should not interrupt current user transactions if any.
sudo /etc/init.d/apache2 restart
sudo /etc/init.d/apache2 reload
Location of error logs for apache if it fails to start
/var/log/apache2/
[Optional] Setup AWS Cloudwatch Agent logging
If you are running alyx as an EC2 instance on AWS, you can easily add the AWS Cloudwatch agent to the server to ease log evaluation and alerting. This can also be done with a non-ec2 server, but is likely not worth it unless you are already using Cloudwatch for other logs.
To give an overview of the installation process for an EC2 instance:
Create an IAM role that enables the agent to collect metrics from the server and attach the role to the server.
Download the agent package to the instance.
Modify the CloudWatch agent configuration file, specify the metrics and the log files that you want to collect.
Install and start the agent on your server.
Verify in Cloudwatch
you are now able to generate alerts from the metrics of interest
you are now shipping the logs files to your log group
Follow the latest instructions from the official AWS Cloudwatch Agent documentation.
Other useful references: