I’ve got the following docker file
FROM rabbitmq:3.7.8-management ADD cluster-entrypoint.sh cluster-entrypoint.sh RUN rabbitmq-plugins enable --offline rabbitmq_mqtt RUN rabbitmq-plugins enable --offline rabbitmq_web_mqtt
cluster-entrypoint.sh is like this for now
#!/bin/bash set -e # Start RMQ from entry point. # This will ensure that environment variables passed # will be honored /usr/local/bin/docker-entrypoint.sh rabbitmq-server -detached # Do the cluster dance rabbitmqctl stop_app rabbitmqctl join_cluster rabbit@$1 # Stop the entire RMQ server. This is done so that we # can attach to it again, but without the -detached flag # making it run in the foreground rabbitmqctl stop # Wait a while for the app to really stop sleep 2s # Start it rabbitmq-server
I managed then to launch the first instance successfully in Rancher and everything is running fine.
I then tried to create another container in order to join the cluster and I don’t know what to specify for the $1 in the above script.
I also tried to change it to the actual docker container id (by logging into rancher and gets it) unsuccessfully.
Here are the logs
DIAGNOSTICS =========== attempted to contact: [rabbit@rabbitmq] rabbit@rabbitmq: * unable to connect to epmd (port 4369) on rabbitmq: nxdomain (non-existing domain)
On local machine I ran it like this and it worked fine
docker run -d --hostname my-rabbit --name some-rabbit -e RABBITMQ_ERLANG_COOKIE='secret cookie here' -p 15672:15672 -p 5671:5671 rabbitmq_mqtt docker run -it --rm --link some-rabbit:my-rabbit -e RABBITMQ_ERLANG_COOKIE='secret cookie here' --entrypoint=/cluster-entrypoint.sh rabbitmq_mqtt my-rabbit
Is there any settings in Rancher UI that I am missing?