About risks to publish an App to Jira Cloud. I have only one server without loadbalancer with multible servers behind it. So this is risky. And I have not enough money to order i.e loadbalacer and two VPS behind it.
What happen if my server comes to broken? And are too long down?
It sounds like you may want to do a dry run and a bit of load testing to understand what your current setup is capable of handling. We have some resources on DAC that might be of use:
https://developer.atlassian.com/cloud/bitbucket/app-operations-guide/
https://developer.atlassian.com/platform/marketplace/cloud-app-operations-guide/
Thanks about these links. I have VPS (gp xlarge) on here: Virtual Private Server (VPS) Hosting | Leasweb
Details:
CPU: 12 Core
RAM: 32GB
Disk (SSD): 180GB
Traffic: 10 TB / month