Update tosca lib to version 0.5

Use tosca-parser and heat-translator to analyze to the basic
nfv-tosca type definitions, and use simple tosca new feature
such as policy, group and trigger, which are now supported by
the latest version of tosca-parser and heat-translator.

JIRA:PARSER-18

Change-Id: I797bcacbb5b32005d0aeb0f3f32851ac96e30f01
Signed--off-by: shangxdy <shang.xiaodong@zte.com.cn>
Signed-off-by: shangxdy <shang.xiaodong@zte.com.cn>

1 files changed, 81 insertions, 0 deletions

diff --git a/tosca2heat/heat-translator/doc/source/usage.rst b/tosca2heat/heat-translator/doc/source/usage.rst
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+=====
+Usage
+=====
+
+Use Heat-Translator with OpenStackClient (OSC)
+----------------------------------------------
+Assuming that OpenStackClient (OSC) is available in your environment, you can easily install Heat-Translator to use with OSC by following three steps::
+
+    git clone https://github.com/openstack/heat-translator
+    cd heat-translator
+    sudo python setup.py install
+
+Alternatively, you can install a particular release of Heat-Translator as available at https://pypi.python.org/pypi/heat-translator.
+
+Once installation is complete, Heat-Translator is ready to use. Currently you can use it in following three ways.
+
+Translate and get output on command line. For example: ::
+
+    openstack translate template --template-file /home/openstack/heat-translator/translator/tests/data/tosca_helloworld.yaml --template-type tosca
+
+Translate and save output of translated file to a desired destination. For example: ::
+
+    openstack translate template --template-file /home/openstack/heat-translator/translator/tests/data/tosca_helloworld.yaml --template-type tosca --output-file /tmp/hot_hello_world.yaml
+
+Do not translate but only validate template file. For example: ::
+
+    openstack translate template --template-file /home/openstack/heat-translator/translator/tests/data/tosca_helloworld.yaml --template-type tosca --validate-only=true
+
+You can learn more about available options by running following help command::
+
+    openstack help translate template
+
+
+Use Heat-Translator on its own
+------------------------------
+Heat-Translator can be used without any specific OpenStack environment set up as below::
+
+    git clone https://github.com/openstack/heat-translator
+    python heat_translator.py --template-file==<path to the YAML template> --template-type=<type of template e.g. tosca> --parameters="purpose=test"
+
+The heat_translator.py test program is at the root level of the project. The program has currently tested with TOSCA templates.
+It requires two arguments::
+
+1. Path to the file that needs to be translated. The file, flat yaml template or CSAR, can be specified as a local file in your
+system or via URL.
+2. Type of translation (e.g. tosca)
+
+For example, a TOSCA hello world template can be translated by running the following command from the project location::
+
+    python heat_translator.py --template-file=translator/tests/data/tosca_helloworld.yaml --template-type=tosca
+
+This should produce a translated Heat Orchestration Template on the command line. The translated content can be saved to a desired file by setting --output-file=<path>.
+For example: ::
+
+    python heat_translator.py --template-file=translator/tests/data/tosca_helloworld.yaml --template-type=tosca --output-file=/tmp/hot_helloworld.yaml
+
+An optional argument can be provided to handle user inputs parameters. Also, a template file can only be validated instead of translation by using --validate-only=true
+optional argument. The command below shows an example usage::
+
+    python heat_translator.py --template-file==<path to the YAML template> --template-type=<type of template e.g. tosca> --validate-only=true
+
+Alternatively, you can install a particular release of Heat-Translator as available at https://pypi.python.org/pypi/heat-translator.
+In this case, you can simply run translation via CLI entry point::
+    heat-translator --template-file=translator/tests/data/tosca_helloworld.yaml --template-type=tosca
+
+Things To Consider
+------------------
+* When deploying the translated template with Heat, please ensure that you have image registered in the Glance. The Heat-Translator
+  project sets flavor and image from a pre-defined set of values (as listed in /home/openstack/heat-translator/translator/hot/tosca/tosca_compute.py)
+  with the best possible match to the constraints defined in the TOSCA template. If there is no possible match found, a null value is set currently.
+  Per the future plan, an image and flavor will be provided from an online repository.
+* The ``key_name`` property of Nova server is irrelevant to the TOSCA specification and can not be used in TOSCA template. In order to use it in
+  the translated templates, the user must provide it via parameters, and the heat-translator will set it to all resources of ``OS::Nova::Server`` type.
+* Since properties of TOSCA Compute OS and HOST capabilities are optional, the user should make sure that either they set these properties correctly
+  in the TOSCA template or provide them via CLI parameters in order to find best match of flavor and image.
+* The ``flavor`` and ``image`` properties of ``OS::Nova::Server`` resource is irrelevant to the TOSCA specification and can not be used in the TOSCA
+  template as such. Heat-Translator sets these properties in the translated template based on constraints defined per TOSCA Compute OS and HOST
+  capabilities. However, user may required to use these properties in template in certain circumstances, so in that case, TOSCA Compute can be extended
+  with these properties and later used in the node template. For a good example, refer to the ``translator/tests/data/test_tosca_flavor_and_image.yaml`` test
+  template.
+