def ip_address_check()

in Linux_scripts/rhui-check/rhui-check.py [0:0]

• 32 lines of code
• 5 McCabe index (conditional complexity)

def ip_address_check(host):
    ''' Checks whether the parameter is within the RHUI4 infrastructure '''

    try:
        import socket
    except ImportError:
        logger.critical("'socket' python module not found, but it is required for this test script, review your python installation.")
        exit(1) 

    try:
        rhui_ip_address = socket.gethostbyname(host)

        if rhui_ip_address  in rhui4:
            logger.debug('RHUI host {} points to RHUI4 infrastructure.'.format(host))
            return True
        elif rhui_ip_address in rhui3 + rhuius:
            reinstall_link = 'https://learn.microsoft.com/troubleshoot/azure/virtual-machines/linux/troubleshoot-linux-rhui-certificate-issues?tabs=rhel7-eus%2Crhel7-noneus%2Crhel7-rhel-sap-apps%2Crhel8-rhel-sap-apps%2Crhel9-rhel-sap-apps#solution-2-reinstall-the-eus-non-eus-or-sap-rhui-package'
            logger.error('RHUI server {} points to decommissioned infrastructure, reinstall the RHUI package'.format(host))
            logger.error('for more detailed information, use: {}'.format(reinstall_link))
            bad_hosts.append(host)
            warnings = warnings + 1
            return False
        else:
            logger.critical('RHUI server {} points to an invalid destination, validate /etc/hosts file for any invalid static RHUI IPs or reinstall the RHUI package.'.format(host))
            logger.warning('Please make sure your server is able to resolve {} to one of the ip addresses'.format(host))
            rhui_link = 'https://learn.microsoft.com/azure/virtual-machines/workloads/redhat/redhat-rhui?tabs=rhel7#the-ips-for-the-rhui-content-delivery-servers'
            logger.warning('listed in this document {}'.format(rhui_link))
            return False
    except Exception as e:
         logger.warning('Unable to resolve IP address for host {}.'.format(host))
         logger.warning('Please make sure your server is able to resolve {} to one of the IP addresses.'.format(host))
         rhui_link = 'https://learn.microsoft.com/azure/virtual-machines/workloads/redhat/redhat-rhui?tabs=rhel7#the-ips-for-the-rhui-content-delivery-servers'
         logger.warning('listed in this document {}'.format(rhui_link ))
         logger.warning(e)
         return False