如下配置文件中

# cat /etc/kong/kong.conf | sed 's#\s*##' | grep -v '^#' | grep -v '^$'
anonymous_reports = off         # Send anonymous usage data such as error
upstream_keepalive = 1         # Sets the maximum number of idle keepalive
database = postgres             # Determines which of PostgreSQL or Cassandra
pg_host = rm-xxxxxxxxxxx.pg.rds.aliyuncs.com
pg_port = 3433                  # The port to connect to.
pg_user = kong                  # The username to authenticate if required.
pg_password = xxxxxxxx                 # The password to authenticate if required.
pg_database = kong              # The database name to connect to.
dns_resolver = 127.0.0.1:8600					 # the local `resolv.conf` file will be used.
dns_order = SRV,A,CNAME    # The order in which to resolve different