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Hi! Excelent book John! I tried the chapter 4 source code using docker with swarm mode (docker-compose.yml attached,I used my own images to prove some things). I had to change application.yml in licensing and organization services in this way:
hostname: organizationservice (licensingservice in the other case)
preferIpAddress: false
It works!. I saw that solution in:
The question is: on page 108 you recommend using preferIpAddress:true, could you clarify when to use it and when not?