<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:

def _support_diag_dump(self):
        '''
        Collect log info for debug
        '''
        # check insights config
        cfg_block = []

        pconn = InsightsConnection(self.config)
        logger.info('Insights version: %s', get_nvr())

        reg_check = registration_check(pconn)
        cfg_block.append('Registration check:')
        for key in reg_check:
            cfg_block.append(key + ': ' + str(reg_check[key]))

        lastupload = 'never'
        if os.path.isfile(constants.lastupload_file):
            with open(constants.lastupload_file) as upl_file:
                lastupload = upl_file.readline().strip()
        cfg_block.append('\nLast successful upload was ' + lastupload)

        cfg_block.append('auto_config: ' + str(self.config.auto_config))
        if self.config.proxy:
            obfuscated_proxy = re.sub(r'(.*)(:)(.*)(@.*)',
                                      r'\1\2********\4',
                                      self.config.proxy)
        else:
            obfuscated_proxy = 'None'
        cfg_block.append('proxy: ' + obfuscated_proxy)

        logger.info('\n'.join(cfg_block))
        logger.info('python-requests: %s', requests.__version__)

        succ = pconn.test_connection()
        if succ == 0:
            logger.info('Connection test: PASS\n')
        else:
            logger.info('Connection test: FAIL\n')

        # run commands
        commands = ['uname -a',
                    'cat /etc/redhat-release',
                    'env',
                    'sestatus',
                    'subscription-manager identity',
                    'systemctl cat insights-client.timer',
                    'systemctl cat insights-client.service',
                    'systemctl status insights-client.timer',
                    'systemctl status insights-client.service']
        for cmd in commands:
            logger.info("Running command: %s", cmd)
            try:
                proc = Popen(
                    shlex.split(cmd), shell=False, stdout=PIPE, stderr=STDOUT,
                    close_fds=True)
                stdout, stderr = proc.communicate()
            except OSError as o:
                if 'systemctl' not in cmd:
                    # suppress output for systemctl cmd failures
                    logger.info('Error running command "%s": %s', cmd, o)
            except Exception as e:
                # unknown error
                logger.info("Process failed: %s", e)
            logger.info("Process output: \n%s", stdout)
        # check available disk space for /var/tmp
        tmp_dir = '/var/tmp'
        dest_dir_stat = os.statvfs(tmp_dir)
        dest_dir_size = (dest_dir_stat.f_bavail * dest_dir_stat.f_frsize)
        logger.info('Available space in %s:\t%s bytes\t%.1f 1K-blocks\t%.1f MB',
                    tmp_dir, dest_dir_size,
                    dest_dir_size / 1024.0,
                    (dest_dir_size / 1024.0) / 1024.0)