I have a custom build hook to pass in build arguments on a repository from which I build two Docker images (tags), from two Dockerfiles.
My second build, however, with the custom Dockerfile, was not being built correctly. It was being built with the default `Dockerfile`, instead of my specified custom one.
I quickly figured out the custom build hook was to blame because it doesn't specify which Dockerfile it should build from, but there was no mention in the documentation of an environmental variable I can consume to get the custom "Dockerfile location" value. By dumping the env vars during the build process, I can there is an environmental variable with that value: `DOCKERFILE_PATH`.
This PR updates the documentation accordingly, to:
1) Expose the fact this environmental variable exists, and explains its purpose
2) Make sure its consumed in the example custom build hook, so any copy-pasters find themselves already supporting custom Dockerfiles, rather than struggling with the same problem
* 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
* tweak: code format for filename
slight reword, so as to avoid confusion w/filename
Signed-off-by: Victoria Bialas <victoria.bialas@docker.com>
* small changes just to kick build again
Signed-off-by: Victoria Bialas <victoria.bialas@docker.com>
`$IMAGE_NAME` is actually `$DOCKER_REPO:$DOCKER_TAG`, not `$DOCKER_REPO/$DOCKER_TAG`. This mistake confused me and made me think that `$DOCKER_REPO` was something like `index.docker.io/MyName` rather than `index.docker.io/MyName/MyProject`.
Rob Jackson
Misty Stanley-Jones
Alex Villarreal
Victoria Bialas
Peter Kokot
Shubheksha Jalan
Cory Locklear
Adrien Duermael
Micah Zoltu
LRubin
Gaetan de Villele
John Mulhausen
Misty Stanley-Jones