chp-docker-entrypoint

#!/bin/sh
# Wrapper around CHP entrypoint that changes defaults slightly
# to be more appropriate when run in a container.

# usage: file_env VAR [DEFAULT]
#    ie: file_env 'XYZ_DB_PASSWORD' 'example'
# (will allow for "$XYZ_DB_PASSWORD_FILE" to fill in the value of
#  "$XYZ_DB_PASSWORD" from a file, especially for Docker's secrets feature)
file_env() {
    var=$1
    file_var="${var}_FILE"
    var_value=$(printenv "$var" || true)
    file_var_value=$(printenv "$file_var" || true)
    default_value=$2

    if [ -n "$var_value" ] && [ -n "$file_var_value" ]; then
        echo >&2 "error: both $var and $file_var are set (but are exclusive)"
        exit 1
    fi

    if [ -z "${var_value}" ]; then
        if [ -z "${file_var_value}" ]; then
            export "${var}"="${default_value}"
        else
            export "${var}"="$(cat "$file_var_value")"
        fi
    fi

    unset "$file_var"
}

file_env 'CONFIGPROXY_AUTH_TOKEN'

set_api_ip=true
for arg in "$@"; do
  case "$arg" in
      "--api-ip"* | "help" | "-h" | "--help" | "version" | "completion") set_api_ip=false ;;
  esac
done

# Default api-ip to all interfaces in docker,
# so that it is accessible to other containers
# and when port-forwarding is requested.
if [ $set_api_ip = true ]; then
    ARGS="--api-ip=0.0.0.0"
fi

exec configurable-http-proxy "$@" "$ARGS"