feat: Modify logger to log to file that supports fail2ban (#284)

README.md

@@ -44,6 +44,79 @@ docker-compose up -d
 
 Demo user: demo@demo.demo demo
 
+### Logging
+
+Planka currently allows you to expose the applciation's logfile directory to the host machine via a shared volume. This feature is not enabled by default.
+
+To expose the logfile director to the host machine, add the item `./logs/:/app/logs/` under `services.planka.volumes`.
+
+Note that the directory to the left of the semicolon is regarding the host machine while the directory to hte right of the semicolon is regarding the Docker container.
+
+For example, in the above step, `./logs/:/app/logs/` will create the folder `logs` in the same directory where the `docker-compose.yml` file lives.
+
+### Rotating Logs
+
+logrotate is designed to ease administration of systems that generate large numbers of log files. It allows automatic rotation, compression, removal, and mailing of log files. Each log file may be handled daily, weekly, monthly, or when it grows too large.
+
+#### Setup logrotate for Planka logs
+
+Create a file in `/etc/logrotate.d` named `planka` with the following contents:
+
+```
+/path/to/planka/logs/planka.log {
+  daily
+  missingok
+  rotate 14
+  compress
+  delaycompress
+  notifempty
+  create 640 root adm
+  sharedscripts
+}
+```
+
+Ensure to replace logfile directory with your installation’s `/logs/planka.log` location.
+
+Restart the logrotate service.
+
+### Fail2ban
+
+Fail2ban is a service that uses iptables to automatically drop connections for a pre-defined amount of time from IPs that continuously failed to authenticate to the configured services.
+
+#### Setup a filter and a jail for Planka
+
+A filter defines regex rules to identify when users fail to authenticate on Planka's user interface.
+
+Create a file in `/etc/fail2ban/filter.d` named `planka.conf` with the following contents:
+
+```conf
+[Definition]
+failregex=^(.*) Invalid (email or username:|password!) (\"(.*)\"!)? ?\(IP: <ADDR>\)$
+ignoreregex=
+```
+
+The jail file defines how to handle the failed authentication attempts found by the Planka filter.
+
+Create a file in `/etc/fail2ban/jail.d` named `planka.local` with the following contents:
+
+```conf
+[planka]
+enabled = true
+port = http,https
+filter = planka
+logpath = /path/to/planka/logs/planka.log
+maxretry = 5
+bantime = 900
+```
+
+Ensure to replace `logpath`'s value with your installation’s `/logs/planka.log` location. If you are using ports other than 80 and 443 for your Web server you should replace those too. The bantime and findtime are defined in seconds.
+
+Restart the fail2ban service. You can check the status of your Planka jail by running:
+
+```bash
+fail2ban-client status planka
+```
+
 ## Development
 
 Clone the repository and install dependencies: