Implement handle_update for FloatingIPAssociation resource

1. modify the property "port_id" to be required.
2. Implement handle_update for FloatingIPAssociation resource, allows to
update FloatingIpAssociation with new port_id(and fixedIp if port has
multipleIps) and new floatingip_id.

Change-Id: Ie40669bee849d91ed93446dcf7f066fe6a5b2961
Implements: blueprint handle-update-for-floatingip
remove default=None for config options

In the cfg module default=None is set as the default value.

Change-Id: Idb78d3e25c79aba0d74fdd747efe2e17b6faa129
Closes-Bug: #1323975
Implement caching of resource attributes

The default caching mode cache_local will return the previously
resolved value if it is available.

Whenever any resource changes state, all resource attribute caches
are cleared just in case the state change has side-effects in
other resources.

The caching mode cache_none performs no caching, and is chosen
for attributes which are one of the following:
* Derived from any resource's metadata, resource data or resource_id
* An API call which returns a secret

Caching currently only exists for the duration of the parser.Stack
object, but there is future potential for a caching mode which
caches attributes spanning multiple requests.

Closes-Bug: #1321970

Change-Id: I01bf2983b726f0e81a2b8d5be94627353bdeb406
Use entry points for config generation

This starts using entry points to generate configuration for the
common.config and the common.wsgi modules, as they use entries with the
same name in different groups.
This also removes configuration for sslutils which is unused, and
re-enable the check for up-to-date configuration.

Co-Authored-By: ala.rezmerita@cloudwatt.com
Closes-Bug: #1288586
Change-Id: If48c62bbb2b1fb641791dad56f7f905e483080fa
Include parameter name in error message

Including parameter name in StackValidationFailed exception
message.

Change-Id: I9d8f4e4a1986496d9be96f0e2a272cbc4da92b49
Closes-Bug: #1324968
Adding error message for output description

All caught exceptions should be displayed in output section.

Change-Id: I217bb52e33c3f0d20c3d01e75326687cc713d90a
Related-Bug: #1273490
Added field parameter identifying the custom validation

In the template file a field with custom constrain should
return in the parameter arguments a custom constrain value.

Change-Id: I7df56a840eabb2f8093ea82eb822a764e9267b40
Closes-bug: #1313835
Fix spelling in a doc string

Change-Id: I7f09cfd7892fce64c99484a36b22ec6a6bada6b1
Don't log entire template

In the engine, we log the entire template at info level
It's probably better, and more secure, to just log a message
saying the create/update is happening.

Change-Id: I6490656e0b6737c34f6a5abb36aa736946a7a44c
Implement resize of Cinder volumes

This patch adds update capabilities to volume size.
The new size must be bigger than old one (as supported by Cinder).
If the volume is attached, it is first detached, then resized and
attached again to the same mount on the same server.

Known limitations:
user has to care for herself about (un)mounting the volume
from within the instance OS and resizing the file system after
resizing the volume.

Change-Id: I7c54b18eb865d0786ec5e3f50c92aeabdaa80a64
Implements: blueprint update-cinder-volume
Fix physical_resource_name for Nova server

This patch fixes the problem caused by the overridden
physical_resource_name() in OS::Nova::Server resource.  If the name
assigned to the Server resource is used for Keystone user creation,
there is a higher possibility of name conflicts.

Change-Id: I5eff496aef8949db9c1f9865e8de33d2b58c7a7f
Closes-Bug: #1324499
Ensure routing key is specified in the address for a direct producer

This change is already merged in oslo-incubator.  Original commit
message body includes:

    Porting this fix from oslo.messaging.  This fixes the impl_qpid.py
    driver to allow it to work with the latest stable upstream QPID broker
    (version 0.28).  See the Apache Qpid Jira bug
    https://issues.apache.org/jira/browse/QPID-5557

Change-Id: If71f78e50f8a9b3acfd1e9d02c8271f17c4ebee7
Related-Bug: #1300318
Add OS::Glance::Image resource

Add OS::Glance::Image resource.
Implements: blueprint glance-image

Change-Id: If0b5f322da758973d6b47f9ca6888fef40f92f45
Merge "Added field parameter identifying the custom validation"
Merge "Implement handle_update for FloatingIPAssociation resource"
Use auth_token_info to initialize heat_keystoneclient sessions

Now we have the token info available in the request context, we can
avoid always re-requesting another token every time a client is
created.

This should be better for performance as it avoids one extra request to
keystone, and it also enables trust-scoped tokens to be more easily
used, since these cannot be used to request another token, thus
authentication will fail with the current scheme.

Partial-Bug: #1317293
Change-Id: I18955d79c4c760ff3fdd47176a2a54c931277121
Merge "Use entry points for config generation"
Merge "Adding error message for output description"
Merge "Fix physical_resource_name for Nova server"
Merge "Implement resize of Cinder volumes"