Docker swarm join with virtualbox: connection error 13, bad certificate

Docker Engine Swarm
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2

Port 2376 is the docker daemon port, not the swarmkit port. Use 2377 as the port if you want to explicitly specify it, or omit it entirely in your --advertise-addr command.

For example:

docker-machine ssh myvm1 "docker swarm leave --force"
docker-machine ssh myvm1 "docker swarm init --advertise-addr 192.168.99.101"
docker-machine ssh myvm2 "docker swarm join --token SWMTKN-1-65xbfd388nl61m4ip6qoplk0yqoze3qzq9ne9t00lmxbppt6oe-7f40hx9wn4tyu3b0nznsrqs2e 192.168.99.101"

(you’d of course end up needing to grab an actual fresh token after you re-init the cluster)

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