Etcd leader election example

How to run

• install etcd

  brew install etcd

• start etcd service

  brew services start etcd

• install all dependencies

  pipenv install

• open 4 terminals and enter into virtual environment for all of them

  pipenv shell

• run 1 server in 4 terminals
  • python leader_election.py server1
  • python leader_election.py server2
  • python leader_election.py server3
  • python leader_election.py server4
• server1 will be the leader since it is run first
• should any of the follower servers were to crash, nothing will change
• should the leader server crash, a new leader will be selected among the follower servers