@lithuak

I’ve not ran in to any issues with just the base images, though it really depends on what you mean by left untouched.

Has anything been installed on the Droplet, software wise? Apache, PHP, MySQL, etc? Has anything be done to secure it, block ports, etc?

…

You can login to the Droplet and run top followed by pressing:

SHIFT + M

c

e

That’ll sort the processes to human-readable format and allow you to take a closer look.

If nothing has been done to the server other than deploying it, it could be a memory leak, though it also could be resource usage from failed login attempts, port scans, etc. Since the IP’s are public, and it’s possible someone else had the IP before you, that’s definitely possible.

If this happens to be a 512MB Droplet, it’ll be even more noticeable since there’s less RAM, thus any spike in usage is going to cause a shift in the graphs.