When pulling an image using Docker 1.8, it seems the output
JSON stream has an empty dict at the very end. This causes
ansible to fail when pulling an image, as it's expecting a
status message in that dict which it uses to determine whether
it had to download the image or not. As a bit of an ugly hack
for that which remains backward compatible, try the last item
in the stream, and if it's an empty dict, take the last-but-one
item instead.
The strip() is needed as the exact value appears to be '{}/r/n';
we could just match that, but it seems like the kind of thing
where maybe it'd happen to just be '{}/n' or '{}' or something
in some cases, so let's just use strip() in case.
A recent change [1] in docker between v1.8.2 and v1.8.3 changed what
is returned in the json when inspecting an image. Five variables which
could have been expected before will now be omited when empty. Only
one of those variables is being addressed in the docker, ExposedPorts.
Unfortunately there was also no API version change on this so this
can't be easily corrected with pinning the API to the older version.
This does a get() which will return None if the variable is not in the
dict formed from the json that was returned. Everything else works the
same way.
[1] 9098628b29
Without this, «ec2: state=stopped instance_ids=…» would fail with a
traceback like this:
if inst.get_attribute('sourceDestCheck')['sourceDestCheck'] != source_dest_check:
NameError: global name 'source_dest_check' is not defined
This patch adds support to setting metadata key/value through a string
argument. Variables can now be used for both the metadata key and
value.
example:
meta: "{{ var1 }}:SomeValue,key:{{ var2 }}"
Both `source_dest_check` and `termination_protection` variables are not
available within the scope of the startstopec2 instance method. This just
pulls them from module.params.
Detached head detection seems to have broken somewhere a long the way
because git decided to change how that situation looks when doing a 'git
branch -a' which is performed by get_branches().
This is how git 1.7.1 displays this situation (which works):
shell> git branch -a
* (no branch)
master
This is the output from git 1.8.3.1 (which does not work):
shell> git branch -a
* (detached from e132711)
master
It looks like this same wording is used in the most recent version of
git (2.6.1 as of writing this).
