[BUG] Aquarium-local has port issue

[ruobinLiu]

Describe the bug
Aquarium-local has port issue: bind for 0.0.0.80 failed as the port 80 is already allocated.

To Reproduce
I followed the instruction to install the aquarium from https://aquariumbio.github.io/aquarium-local/, and
./aquarium.sh up
gives me the error.

Expected behavior
I would expect to install it without any error.

Screenshots
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Computer/Device (please complete the following information):

• OS: [ macOS Big Sur]
• Browser [e.g. chrome, safari]
• Version [e.g. 22]

Additional context
Add any other context about the problem here.

[bjkeller]

I've moved this to aquarium-local because this is set in the aquarium-local scripts.

This error happens b/c you have something running that is using port 80 on your machine.
This could be a previously running instance of aquarium-local if you did not run aquarium.sh down.
Or, it could be another service running that is using the port -- it is whatever you get when you visit localhost in your browser.

In this second case, the best we can do is make it easier for you to change which port aquarium-local is using.
For instance, if we changed it to port 81, you would open localhost:81 with your browser.

@ruobinLiu can you confirm whether you have a different service running?

[ruobinLiu]

I've confirmed that Docker is using port 80 because I followed a tutorial on how to use Docker before I tried aquarium.
I would like to switch to port 81 for aquarium as you suggested since I may need to refer back to the tutorial in the future.
Thank you so much @bjkeller

[ruobinLiu]

I've tried aquarium with port 80, I have to say I like aquarium and would be very likely to use it for my project! But it would be very helpful to have aquarium switched to port 81 in a long term. I wonder if you could please help me with that? Thank you!

[bjkeller]

The aquarium.sh script manages a .env text file in the directory that has this set.
A quick strategy is to edit that file and change the value on the line

APP_PUBLIC_PORT=80

As is, the script will not change values set in the .env file.