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learning docker - day 6

Christos Paschalidis
January 3rd, 2021 · 1 min read

swarm full app lifecycle

image

lab

  1. create new service
1docker service create -p 8088:80 --name web nginx:1.13
  1. scale it up to 5
1docker service scale web=5
  1. update the service by changing the image to a newer version
1docker service update --image nginx:1.14 web
  1. change published port from 8088 to 9090

tip. you first add a new one and remove the old one at the same time. like so,

1docker service update --publish-rm published=8088,target=80 --publish-add published=9090,target=80 web
  1. tip update by force
1docker service update --force web
  1. always remove the services by
1docker service rm <serviceId>

docker healthchecks

image

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