Rewrite ENTRYPOINT documentation covering all the combinations with examples.

Docker-DCO-1.1-Signed-off-by: Sven Dowideit <SvenDowideit@docker.com> (github: SvenDowideit)
Port number 49153(BeginPortRange) would be returned twice, causing duplication and potential errors.

If we first request port 49153 (BeginPortRange) explicitly, and later some time request the next free port (of same ip/proto) by calling RequestPort() with port number 0, we will again get 49153 returned, even if it's currently in use. Because findPort() blindly retured BeginPortRange the first run, without checking if it has already been taken.

Signed-off-by: shuai-z <zs.broccoli@gmail.com>
added test, gofmtd

Signed-off-by: shuai-z <zs.broccoli@gmail.com>
Gracefully handle network bridge without IP association at startup
Addresses #8444

Docker-DCO-1.1-Signed-off-by: Phil Estes <estesp@linux.vnet.ibm.com> (github: estesp)
Allowing resize tty to only work when container is started
Addresses #8728

Signed-off-by: Srini Brahmaroutu <srbrahma@us.ibm.com>
Merge pull request #8453 from estesp/8444-create-bridge-error

Gracefully handle network bridge without IP association at startup
Merge pull request #8737 from brahmaroutu/resize_uponstart_8728

Allowing resize tty to only work when container is started
Merge pull request #8671 from shuai-z/master

Port number 49153(BeginPortRange) would be returned twice, causing dupli...
Add --dryrun to allow testing to the docs-release site, and then fix the double dollar mistake

Docker-DCO-1.1-Signed-off-by: Sven Dowideit <SvenDowideit@docker.com> (github: SvenDowideit)
Merge pull request #8695 from SvenDowideit/add-details-to-entrypoint-docs

Rewrite ENTRYPOINT documentation covering all the combinations with exam...
Merge pull request #8722 from SvenDowideit/sven-cannot-bash

Add --dryrun to allow testing to the docs-release site, and then fix the...