How Does Kong Configurations work

Pretty much at high level, it is explained here.

The configurations are stored in kong.conf file.

# -----------------------

# Kong configuration file

# -----------------------

#

# The commented-out settings shown in this file represent the default values.

#

# This file is read when `kong start` or `kong prepare` are used. Kong

# generates the Nginx configuration with the settings specified in this file.

#

# All environment variables prefixed with `KONG_` and capitalized will override

# the settings specified in this file.

# Example:

#   `log_level` setting -> `KONG_LOG_LEVEL` env variable

#

# Boolean values can be specified as `on`/`off` or `true`/`false`.

# Lists must be specified as comma-separated strings.

#

# All comments in this file can be removed safely, including the

# commented-out properties.

# You can verify the integrity of your settings with `kong check <conf>`.