  targets:
    - type: powerdns
      description: PowerDNS Database Cluster

      # List out the designate-mdns servers from which PowerDNS servers should
      # request zone transfers (AXFRs) from.
      masters:
        - host: 192.0.2.1
          port: 5354

      # PowerDNS Configuration options
      options:
        host: 192.0.2.1
        port: 53
        connection: 'mysql+pymysql://designate:password@127.0.0.1/designate_pdns?charset=utf8'

  targets:
    - type: powerdns
      description: PowerDNS Database Cluster

      # List out the designate-mdns servers from which PowerDNS servers should
      # request zone transfers (AXFRs) from.
      masters:
        - host: 192.0.2.1
          port: 5354

      # PowerDNS Configuration options
      options:
        host: 192.0.2.1
        port: 53
        # connects and logs in to the PowerDNS database designate_pdns
        connection: 'mysql+pymysql://designate:password@127.0.0.1/designate_pdns?charset=utf8'

Add explanation of connection string in pdns sample_yaml_snippets
Add explanation of connection string in pdns sample_yaml_snippets

Closes-Bug: #1579732

Change-Id: I6bfae810d25c3eaf4bb81579cf08ef2e5de1d628
