Without specifying this the user gets:
docker-compose up -d
ERROR: Top level object in './docker-compose.yml' needs to be an object not '<class 'NoneType'>'.
* Reword lots of instances of 'will'
* Reword lots of instances of won't
* Reword lots of instances of we'll
* Eradicate you'll
* Eradicate 'be able to' type of phrases
* Eradicate 'unable to' type of phrases
* Eradicate 'has / have to' type of phrases
* Eradicate 'note that' type of phrases
* Eradicate 'in order to' type of phrases
* Redirect to official Chef and Puppet docs
* Eradicate gratuitous 'please'
* Reduce use of e.g.
* Reduce use of i.e.
* Reduce use of N.B.
* Get rid of 'sexagesimal' and correct some errors
* put back missing Compose Wordpress example
Signed-off-by: Victoria Bialas <victoria.bialas@docker.com>
* addressed review comments, postponing one comment re: yaml code fencing
Signed-off-by: Victoria Bialas <victoria.bialas@docker.com>
* updated/improved Compose samples
Signed-off-by: Victoria Bialas <victoria.bialas@docker.com>
* linked some more basic docker-compose commands
Signed-off-by: Victoria Bialas <victoria.bialas@docker.com>
* coypedit
Signed-off-by: Victoria Bialas <victoria.bialas@docker.com>
* Fix missing database user for Wordpress service
It defaults to root if not specified. https://hub.docker.com/_/wordpress/
* Change root password to avoid confusion.
Update the compose example:
* Remove the `links` directive. This allows swarm to distribute containers across available nodes. (with the `links` directive, swarm will be forced to run both containers on the same node.) Note that the `depends_on` directive is sufficient to ensure correct container start up sequence.
* Use a docker volume instead of bind mounting a local directory.
* Give docker-compose commands for shutting down the Wordpress app, showing how to preserve or remove the persisted data in the volume.
Verified proposed change works correctly in both a swarm and a non-swarm environment.
T.D. Gonzales
paigehargrave
Maria Bermudez
Waclaw Jacek
Vitor Reis
Ryoichi Obara
Robert Kielty
Dave James Miller
Patrick Chanezon
Misty Stanley-Jones
Achilleas Pipinellis
Victoria Bialas
Bhavin Gandhi
Victoria Bialas
John Mulhausen
Kevin Conboy
David Williamson
Jonas Friedmann
Gaetan
Misty Stanley-Jones
Adrien Duermael
Ivan Perez