#!/usr/bin/env bash
#
# source openrc
#
# Configure a set of credentials for $PROJECT/$USERNAME:
#   set OS_AUTH_URL to Keystone end point
#   Set OS_PROJECT_NAME to openstack project name
#   Set OS_USERNAME to openstack user name
#   Set ADMIN_PASSWORD to openstack password

# If using devstack:
#   set both OS_USERNAME and OS_TENANT_NAME to 'admin' or 'demo'
# Example config for devstack:
#   export OS_AUTH_URL="http://192.168.56.101:5000"
#   export OS_TENANT_NAME="admin"
#   export OS_USERNAME="admin"
#   export OS_PASSWORD="ubuntu"

#
# set Keystone endpoint
#
export OS_AUTH_URL="<keystone endpoint>:5000"


#
# set openstack credentials
#
if [[ $# -ne 3 ]]; then
    echo "wrong number of arguments!"
    echo "enter openstack credentials in the following order:"
    echo "source openrc <project_name> <user_name> <user_password>"
    return
else

    if [[ -n "$1" ]]; then
        OS_PROJECT_NAME=$1
    else
        echo "Openstack project name cannot be an empty string"
        return
    fi

    if [[ -n "$2" ]]; then
        OS_USERNAME=$2
    else
        echo "Openstack user name cannot be an empty string"
        return
    fi

    if [[ -n "$3" ]]; then
        OS_PASSWORD=$3
    else
        echo "Openstack password cannot be an empty string"
        return
    fi

    export OS_TENANT_NAME=${OS_PROJECT_NAME}
    export OS_USERNAME=${OS_USERNAME}
    export OS_PASSWORD=${OS_PASSWORD}
fi