Question

One IP multiple Ports each on an different Droplet (docker)

Hallo, im new to docker. im a programmer and i’ve just i lil knowledge about servers and other dev-ops thinks. But our server administrator is now gone.

Im trying to outsource some services from our monolith app (to heavy for one droplet) to some microservices (each on his own droplet).

my target is: 123.123.123.123:80 => monolith app (droplet #1) 123.123.123.123:12345 => microservice 1 (droplet #2) 123.123.123.123:12346 => microservice 2 (droplet #3) etc…

all with the same ssl certificate. the main app is written in php and runs on an apache server. i will write the microservices in java, javascript and python.

did somebody has an tutorial, to do that?

greats, marco.

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Hello,

I believe HAProxy will do what you want.

http://www.haproxy.org/

DigitalOcean has a nice tutorials on it: https://www.digitalocean.com/community/tutorials/an-introduction-to-haproxy-and-load-balancing-concepts

One from Medium: https://medium.com/@nirgn/load-balancing-applications-with-haproxy-and-docker-d719b7c5b231

Securing HAProxy with Lets Encrypt: https://www.digitalocean.com/community/tutorials/how-to-secure-haproxy-with-let-s-encrypt-on-ubuntu-14-04

You can also search for “HAProxy Docker” on DO for lots of other nice tutorials: https://www.digitalocean.com/community/tutorials?q=haproxy+docker

Feel free to reply back if you need further help!