updated so that we can add a postgres node.

diff --git a/README.md b/README.md
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+Apigee Maintenance Playbook - Add or Remove a Postgresql Node
+=============================================================
+
+This playbook provides maintenance assistance for the tasks of 
+adding or removing a postgresql node. Two playbooks are provided. The first 
+playbook called postgresql-add.yml will register a postgresql node with analytics. 
+The second playbook called postgresql-remove.yml will de-register a postgresql node
+with analytics. 
+
+
+Usage Instructions
+==================
+
+These are ansible playbooks and require ansible.
+
+1. Please install and configure ansible as indicated in [opdk-setup-ansible](https://github.com/carlosfrias/apigee-setup-ansible).
+1. `ansible-galaxy -f -r requirements.yml`
+1. `ansible-playbook -i <inventory file or folder> [postgresql-add.yml | postgresql-remove.yml]`
+

diff --git a/postgresql-add.yml b/postgresql-add.yml
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+++ b/postgresql-add.yml

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+---
+- hosts: planet
+  tasks:
+  - setup:
+  - ec2_facts:
+
+- hosts: '{{ hosts }}'
+  vars:
+    pgmaster_group_name: 'dc-2-pgmaster'
+    pgstandby_group_name: 'dc-2-pgstandby'
+  vars_files:
+  - ~/.apigee/credentials.yml
+  roles:
+  - apigee-opdk-setup-default-settings
+  - { role: apigee-opdk-server-self, server_type: 'ps'}
+  - apigee-opdk-setup-postgresql-add
+
+#  tasks:
+#  - name: Construct uuid for master,standby
+#    set_fact:
+#      master_standby_uuid: "{{ hostvars[groups[pgmaster_group_name][0]].edge_ps_self.uUID }},{{ hostvars[groups[pgstandby_group_name][0]].edge_ps_self.uUID }}"
+#
+#  - name: Add postgres server
+#    uri:
+#      user: '{{ opdk_user_email }}'
+#      password: '{{ opdk_user_pass }}'
+#      method: POST
+#      body_format: json
+#      url: http://{{ local_mgmt_ip }}:8080/v1/analytics/groups/ax/{{ ax_group }}/servers?uuid={{ master_standby_uuid}}&type={{ hostvars[groups[pgmaster_group_name][0]].edge_ps_self.type[0] }}&force=true
+#
+#  - name: Add postgres to consumer groups
+#    uri:
+#      user: '{{ opdk_user_email }}'
+#      password: '{{ opdk_user_pass }}'
+#      method: POST
+#      url: http://{{ local_mgmt_ip }}:8080/v1/analytics/groups/ax/{{ ax_group }}/consumer-groups/{{ consumer_group }}/datastores?uuid={{ master_standby_uuid }}
+#      body_format: json
+#

diff --git a/postgresql-remove.yml b/postgresql-remove.yml
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+++ b/postgresql-remove.yml

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+---