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:
<user>@acumen-app-server:~$ cd ~/dockerise/<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:
<user>@acumen-app-server:~$ cd ~/dockerise/<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.
Application logging
Where an issue with the database container has been observed then the Administrator should check the application logs:
- Identify the ip address of the server in the Administration page.
- Browse to the following url: http://<ip address>:8080/logs/flask-app/
Administrators are requested to copy any relevant error messages to the support ticket.
Starting the container
If the container is Down - then the following commands will bring the container back up:
<user>@acumen-app-server:~$ cd ~/dockerise/<user>@acumen-app-server:~$ docker-compose up -d flask-app"
Browser Console Messages
Another useful method to understand where any issues lie is to access the Chrome Browser Developer Tools and to peruse the console messages.
- Navigate to the required acumen page;
- Press [CTRL+SHIFT+I] or [F12] to open the DevTools window (select More Tools > Developer Tools application menu also works);
- Click on the Console tab;
- View any error messages - ensuring that these are copied to the support ticket.