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# policy_handler
## web-service for policies to be used by DCAE-Controller
- GET **/policy\_latest/***\<policy-id>* -- get the latest policy from policy-engine
- receives the **push notifications** from policy-engine through the web-socket, filters and gets the full policy-configs, and delivers that to deploy-handler
## manual http API
- GET **/catch_up** -- catch up with the latest state of the policy-engine
- GET **/policies_latest** -- get all the latest policies in policy-engine through web-service API
- GET **/shutdown** -- shutdown the server
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## installation
`virtualenv policy_venv`
`cd policy_venv`
`source bin/activate`
`cd ../policy_handler`
`pip install -r requirements.txt`
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## preparation to run
`cd policy_venv`
`source bin/activate`
`cd ../policy_handler`
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## configure
in folder `policy_handler`:
- `config.json` contains
- `"scope_prefixes" : ["DCAE_alex.Config_"]` - the list of policy-scope-class values
- `"policy_engine"` - the http connect info to ECOMP **policy-engine**
- headers.ClientAuth : base64(<mech-id with namespace>:<password>)
- headers.Authorization : base64(<policy-engine server auth>)
- `"deploy_handler"` - the http connect info to _policy part_ of the **deploy-handler**
- `policy_engine.properties` contains config info for the client lib of ECOMP **policy-engine** that receives push notifications from the ECOMP **policy-engine** server
- CLIENT_ID is the mech-id with the namespace - need to register with policy-engine team thru email
- CLIENT_KEY is the base64 of the mech-id password - separate passwords for TEST versus PROD
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## run
in folder `policy_handler`:
`./run_policy.sh`
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