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Spawning multiple droplets (microservices) accessible by IP address, how to secure traffic by SSL?
I have the solution that creates and destroys droplets whenever needed - multiple $5 instances that live for a couple of hours max.
When these droplets are created - the application installed there immediately notifies my “service discovery” about their IP addresses. My admin/master application can query service discovery - obtain their IP and send them a task to perform.
Service discovery and master application are accessible by domains/subdomains, and these have their Let’s encrypt certificate set.
The problem is - how my master application can speak to these droplets in a secure way. The IP constantly changes as droplets are destroyed and recreated (from snapshot).
Do I need to write a script that creates a self-signed certificate during power up?
I’m aware of private IPs, but worker droplets can be created in different data centers.
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