Am I right or wrong?

Question

linux

Need experienced advice.

Works 5 VM on a cluster which is spaced into two cities.
Cluster:

• 3 nodes,
  
• pacemaker,
  
• drbd on two nodes in one city, on the third node (backup in another city) machines merge once a week.
  

VM:

• 2xAsrterisk,
  
• 2xWeb(api, sites),
  
• Mailer (postfix, dovecot, spamassassin),
  

There is a desire to transfer all this from KVM to docker

Goal:

• better learn docker in the process,
  
• optimization of the load on the nodes as they are used,
  
• it is faster to transfer images to the backup node when they are updated.
  

The second question:
Will it be correct to have several dockers in the virtual machine with different versions of php.

Answer 1

You're wrong