json_schema: {
      "properties": {
          "database": {
              "description": "MySQL database configuration properties",
              "properties": {
                  "name": {
                      "default": "defaultdb",
                      "description": "The name of a database to be created on startup.",
                      "type": "string"
                  },
                  "password": {
                      "default": "password",
                      "description": "The password for a user to be created with superuser access to this database only.",
                      "type": "string"
                  },
                  "root_password": {
                      "default": "root",
                      "description": "Specifies the password that will be set for the MySQL root superuser account.",
                      "type": "string"
                  },
                  "username": {
                      "default": "admin",
                      "description": "The username of a user to be created with superuser access to this database only.",
                      "type": "string"
                  }
              },
              "type": "object"
          },
          "mysql": {
              "description": "MySQL service configuration properties",
              "properties": {
                  "cpus": {
                      "default": 0.3,
                      "description": "CPU shares to allocate to each MySQL node.",
                      "minimum": 0.3,
                      "type": "number"
                  },
                  "mem": {
                      "default": 512.0,
                      "description": "Memory to allocate to each MySQL node.",
                      "minimum": 512.0,
                      "type": "number"
                  }
              },
              "required": [
                  "cpus",
                  "mem"
              ],
              "type": "object"
          },
          "networking": {
              "description": "MySQL networking configuration properties",
              "properties": {
                  "external_access": {
                      "description": "Enable access from outside the cluster through Marathon-LB.\nNOTE: this connection is unencrypted.",
                      "properties": {
                          "enable": {
                              "default": false,
                              "description": "Enable or disable creating a VIP for external access through a public node running Marathon-LB. Defaults to FALSE.",
                              "type": "boolean"
                          },
                          "external_port": {
                              "default": 13306,
                              "description": "For external access, port number to be used for clear communication in the external Marathon-LB load balancer",
                              "type": "number"
                          }
                      },
                      "type": "object"
                  },
                  "port": {
                      "default": 3306,
                      "description": "Port number to be used for clear communication internally to the cluster. Currently unused and fixed to be 3306.",
                      "type": "number"
                  }
              },
              "type": "object"
          },
          "service": {
              "description": "DC/OS service configuration properties",
              "properties": {
                  "name": {
                      "default": "mysql",
                      "description": "Name of this service instance",
                      "type": "string"
                  }
              },
              "type": "object"
          },
          "storage": {
              "description": "MySQL storage configuration properties",
              "properties": {
                  "host_volume": {
                      "default": "/tmp",
                      "description": "The location of a volume on the host to be used for persisting MySQL data. The final location will be derived from this value plus the name set in `name` (e.g. `/mnt/host_volume/mysql`). This can be a mounted NFS drive. Note that this path must be the same on all DC/OS agents.",
                      "type": "string"
                  },
                  "persistence": {
                      "description": "Enable persistent storage.",
                      "properties": {
                          "enable": {
                              "default": false,
                              "description": "Enable or disable persistent storage.",
                              "type": "boolean"
                          },
                          "volume_size": {
                              "default": 256,
                              "description": "If a new volume is to be created, this controls its size in MBs. Defaults to 64MBs",
                              "type": "number"
                          }
                      },
                      "type": "object"
                  }
              },
              "type": "object"
          }
      }
  }