Completely Crashes on Restart
Using the commands in the documentation this will completely crash and not be accessible after being restart. There is limited troubleshooting and it would almost be easier to install this manually instead of trying to figure out how to change all of the settings after the fact.
Sorry to hear your experience did not go well. We would like to learn more about problems you encountered when using our solution. As you mentioned, we have made available guides to perform common request customizations in the solutions (https://docs.bitnami.com/aws/apps/mattermost/). For times when you need additional support, we provide support from our engineers in our Community forum (https://community.bitnami.com/). We would appreciate if you could open a thread referencing this review at our community forum, to allow our team to review the issues you encountered and improve our documentation and our application based on your feedback. Thanks!