Add new Ghost image

[tianon]

No description provided.

[tianon]

Build test of #505; 861f58d (ghost):

$ url="https://raw.githubusercontent.com/docker-library/official-images/861f58ddcea4060c8317eac1cf8e4b4734e16789/library/ghost"
$ bashbrew build "$url"
Cloning ghost (git://github.com/docker-library/ghost) ...
Processing ghost:0.5.8 ...
Processing ghost:0.5 ...
Processing ghost:0 ...
Processing ghost:latest ...
$ bashbrew list "$url" | xargs test/run.sh
testing ghost:0.5.8
    'utc' [1/2]...passed
    'cve-2014--shellshock' [2/2]...passed
testing ghost:0.5
    'utc' [1/2]...passed
    'cve-2014--shellshock' [2/2]...passed
testing ghost:0
    'utc' [1/2]...passed
    'cve-2014--shellshock' [2/2]...passed
testing ghost:latest
    'utc' [1/2]...passed
    'cve-2014--shellshock' [2/2]...passed

[md5]

I hate to bring up the fact that it runs as root unnecessarily, but it does :)

[tianon]

You shouldn't hate to bring that up -- keep it coming, because that's an excellent point. 👍

[md5]

It just know that making it run as ghost comes with its own set of complications and limitations.

[md5]

In the case of jetty, I'm leaning toward having it run as jetty by default, documenting the UID and GID, and documenting the hell out of how to change the user for different scenarios. All of which takes time, hence appropriate/docker-jetty#1.

[tianon]

I think we should match the behavior of WordPress here, so I'm updating. 👍

[md5]

So www-data:www-data with id 33?

[tianon]

Well, I mean the general formula. I'm still not 100% sold on www-data with the special 33 ID that may or may not change in later versions of Debian. 🐑

[tianon]

Updated:

Build test of #505; cc325b1 (ghost):

$ url="https://raw.githubusercontent.com/docker-library/official-images/cc325b19ff0ca4fb38abb0294c348248a6cde3cb/library/ghost"
$ bashbrew build "$url"
Cloning ghost (git://github.com/docker-library/ghost) ...
Processing ghost:0.5.8 ...
Processing ghost:0.5 ...
Processing ghost:0 ...
Processing ghost:latest ...
$ bashbrew list "$url" | xargs test/run.sh
testing ghost:0.5.8
    'utc' [1/2]...passed
    'cve-2014--shellshock' [2/2]...passed
testing ghost:0.5
    'utc' [1/2]...passed
    'cve-2014--shellshock' [2/2]...passed
testing ghost:0
    'utc' [1/2]...passed
    'cve-2014--shellshock' [2/2]...passed
testing ghost:latest
    'utc' [1/2]...passed
    'cve-2014--shellshock' [2/2]...passed

[yosifkit]

LGTM