docker run cli command allows container creation just like docker service create --publish option. But it works in wrong order.
docker run --rm --name mytest --publish published=8080,target=80 nginx
command runs without any failure but connects localhost 80 to container 8080. However, docker service create with same options connects ports in correct order.
I know, with “docker run” command to publish a port, i have to use -p 8080:80 option but “docker run” command also accepts the “–publish published=8080,target=80” parameter without giving any error, warning.
#docker run --rm -d --name mytest --publish published=8080,target=80 nginx
curl: (7) Failed to connect to localhost port 8080: Connection refused
#docker service create --name mytest --publish published=8080,target=80 nginx
overall progress: 1 out of 1 tasks
verify: Service converged
Welcome to nginx!
Either docker run command should produce an error/warning or should work as in service creation. Any comments?