database:
  name: psycopg2
  args:
    host: {{var_postgresql_client_for_synapse_host}}
    port: {{var_postgresql_client_for_synapse_port}}
    database: "{{var_postgresql_client_for_synapse_schema}}"
    user: "{{var_postgresql_client_for_synapse_username}}"
    password: "{{var_postgresql_client_for_synapse_password}}"
    cp_min: 5
    cp_max: 10