UI services

Integral to the application is the service that renders the UI to users via the web browser - internally known as flask-app.

Checking the container status

• Start an ssh session to the relevant application server;
• At the prompt, type the following commands:

1. <user>@acumen-app-server:~$ cd ~/dockerise/
2. <user>@acumen-app-server:~$ docker ps | grep "STATUS\|flask-app"

The program will output information about the status of the container.

Container logging

Where an issue with the database container has been observed then the Administrator should check the logs:

• Start an ssh session to the relevant application server;
• At the prompt, type the following commands:

1. <user>@acumen-app-server:~$ cd ~/dockerise/
2. <user>@acumen-app-server:~$ docker-compose logs -f flask-app"

This action will stream the logs to the terminal; observing this output for a short time should provide some indications to any potential issues.

Press [CTRL+C] to stop the logging output and return to the prompt.

Starting the container

If the container is Down - then the following commands will bring the container back up:

1. <user>@acumen-app-server:~$ cd ~/dockerise/
2. <user>@acumen-app-server:~$ docker-compose up -d flask-app"