Problems with an already running nginx-server on vServer

[juliwe]

When I try to start the composition with atlassian up, I am facing difficulties on my vServer.

My configuration is a Ubuntu 18.04 with Plesk installed, managing multiple virtual hosts. One of which is the domain I want to use with the omidraha/atlassian suite.

Port 80 is already blocked by the Plesk nginx server, managing critical parts such as Let's encrypt verification and alike. Thus, stopping it might not be the best option.
How can I configure the suite correctly, to use it in parallel? (preferably without ports but by linking the two nginx servers together).

I appreciate your help.

[juliwe]

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