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authorSaryu Shah <ss3917@att.com>2019-06-04 01:09:35 +0000
committerSaryu Shah <ss3917@att.com>2019-06-04 01:09:35 +0000
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treea1b8f200cb181a242e37d754e6b019cf8c987cff /docs/drools/guardpdp.rst
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Create Drools PDP documentation - Tutorials
Create Drools PDP documentation in parent - Tutorials Issue-ID: POLICY-1678 Signed-off-by: Saryu Shah <ss3917@att.com> Change-Id: Iff3829a7814c3484d1f0885795180e6e95adc26b
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+
+.. This work is licensed under a Creative Commons Attribution 4.0 International License.
+.. http://creativecommons.org/licenses/by/4.0
+
+************************
+Using guard in the PDP-D
+************************
+
+.. contents::
+ :depth: 2
+
+This guide will help configure and test guard connection from PDP-D to PDP-X. This guide assumes that the PDP-D is installed and running policy properly with other properties being set properly.
+
+Configuration
+^^^^^^^^^^^^^
+
+Prerequisites
+-------------
+
+Stop Policy, open, and verify the config:
+
+- Stop policy with *policy stop*
+- Open *$POLICY_HOME/config/controlloop.properties.environment*
+- Make sure the *sql.db.host*, *sql.db.username* and *sql.db.password* are set correctly
+
+
+Guard Properties
+----------------
+
+**guard.url** - URL endpoint of the PDP-X which will receive the request.
+ - For example, *http://pdp:8081/pdp/api/getDecision* will connect to the localhost PDP-X.
+ - This request requires some configuration for PDP-X properties below.
+ - For testing this URL before running policy, see Verification below.
+
+**guard.jdbc.url** - URL of the database location to which the operations history will be written.
+ - For example, *jdbc:mariadb://mariadb:3306/onap_sdk*.
+ - Note that the port is included.
+ - Note that at the end, the database name is used.
+
+**guard.disabled** - For enabling / disabling guard functionality.
+ - For example, to enable set it to false.
+ - When this is set to true, the previous two properties will be ignored.
+ - If guard is enabled, then the following PDP-X properties must also be set.
+
+
+PDP-X Properties
+----------------
+
+For testing these properties before running policy, see Verification below.
+
+**pdpx.host** - URL of the PDP-X
+ - For example, pdp can be used when PDP-X is on localhost.
+
+**pdpx.username** - User to authenticate
+
+**pdpx.password** - User Password
+
+**pdpx.environment** - Environment making requests
+ - For example, TEST
+
+**pdpx.client.username** - Client to authenticate
+
+**pdpx.client.password** - Client password
+
+
+
+Verification
+^^^^^^^^^^^^
+
+It is recommended to test using CLI tools before running since changing bash command parameters are faster than restarting policy.
+
+Logs Verification
+-----------------
+Checking the logs is straight forward. Check the *$POLICY_HOME/logs/error.log* file for the word "*callRESTfulPDP*" for any exceptions thrown. If they are thrown then there was a problem with the connection.
+You can also check the *$POLICY_HOME/logs/network.log* file for the word "*Indeterminate*" which implies the connection failed or got a non 200 response code.
+
+CLI Verification
+----------------
+
+It can be helpful to test the PDP-X connection using bash commands to make sure that the PDP-X properties are correct and the guard.url property is correct before running policy.
+
+**Method 1: httpie - CLI, cURL-like tool for humans**
+
+ Using the http command we can make a request directly to PDP-X from the command line. Use the following form:
+
+ .. code-block:: bash
+
+ http
+ POST pdp:8081/pdp/api/getDecision
+ Authorization:<yourAuth> ClientAuth:<yourClientAuth>
+ Environment:<environment> Content-Type:application/json < guard_request.json
+
+ | where:
+ | *<yourAuth>* is the string generated from user:pass converted to base64 encoding
+ | (a conversion tool is available at https://www.base64encode.org/)
+ | *<yourClientAuth>* is generated the same way but from the client user and pass.
+ | *<environment>* is the context of the request. For example: TEST
+ | *pdp* is the host of the PDP-X
+
+
+ The guard_request.json should be in the form of the following:
+
+ .. code-block:: json
+ :caption: guard_request.json
+
+ {
+ "decisionAttributes": {
+ "actor": "APPC",
+ "recipe": "Restart",
+ "target": "test13",
+ "clname" : "piptest"
+ },
+ "onapName": "PDPD"
+ }
+
+ * This request uses Basic Access Authentication.
+ * This request will need further configuration if you are using a proxy.
+
+
+ You know a successful connection is set when a response containing a “PERMIT” or “DENY” in uppercase is returned as follows:
+
+ .. code-block:: json
+ :caption: Response
+
+ {
+ "decision": "PERMIT",
+ "details": "Decision Permit. OK!"
+ }
+
+**Method 2: curl**
+
+ This method does the same as the http command but uses the alternate command of curl. The command should have the following form:
+
+ .. code-block:: bash
+
+ curl -u <user>:<pass> -H "Content-Type: application/json" -H "ClientAuth:<yourClientAuth>"
+ -H "Environment:<environment>" -X POST -d @guard_req.json pdp:8081/pdp/api/getDecision
+
+ * Note that <user> and <pass> are in plain text, while the other headers follow the same form as in Method 1 above.
+ * This request will need further configuration if you are using a proxy
+ * The response is the same as in Method 1.
+
+
+**Note on Proxies**
+
+ * JVM system properties should be set if a proxy is being used to make the connection work with policy.
+ * The connection may succeed but have response code 401 or 403 with improper proxy authentication, which leads to "Indeterminate"
+ * Additionally, the CLI tools have specific proxy configuration. See their respective manual pages for more info.
+
+
+End of Document
+
+.. SSNote: Wiki page ref. https://wiki.onap.org/display/DW/Using+guard+in+the+PDP-D