def _get_rhsm_cert_on_centos_7():
"""There's a RHSM-related bug on CentOS 7: https://bugs.centos.org/view.php?id=14785
- The subscription-manager-rhsm-certificates is missing the necessary /etc/rhsm/ca/redhat-uep.pem.
- This cert is still available in the python-rhsm-certificates package which is not possible to install
(because it is obsoleted by the subscription-manager-rhsm-certificates).
The workaround is to download the python-rhsm-certificates and extract the certificate from it.
"""
loggerinst = logging.getLogger(__name__)
cert_pkg_path = utils.download_pkg(pkg="python-rhsm-certificates",
dest=_RHSM_TMP_DIR,
reposdir=_RHSM_TMP_DIR)
exit_on_failed_download([cert_pkg_path])
output, ret_code = utils.run_subprocess("rpm2cpio %s" % cert_pkg_path,
print_output=False)
if ret_code != 0:
loggerinst.critical(
"Failed to extract cpio archive from the %s package." %
cert_pkg_path)
cpio_filepath = cert_pkg_path + ".cpio"
utils.store_content_to_file(filename=cpio_filepath, content=output)
cert_path = "/etc/rhsm/ca/redhat-uep.pem"
utils.mkdir_p("/etc/rhsm/ca/")
output, ret_code = utils.run_subprocess(
"cpio --quiet -F %s -iv --to-stdout .%s" % (cpio_filepath, cert_path),
print_output=False)
# cpio return code 0 even if the requested file is not in the archive - but then the output is 0 chars
if ret_code != 0 or not output:
loggerinst.critical(
"Failed to extract the %s certificate from the %s archive." %
(cert_path, cpio_filepath))
utils.store_content_to_file(cert_path, output)
def _download_rhsm_pkgs(pkgs_to_download, repo_path, repo_content):
downloaddir = os.path.join(utils.DATA_DIR, "subscription-manager")
utils.store_content_to_file(filename=repo_path, content=repo_content)
paths = utils.download_pkgs(pkgs_to_download,
dest=downloaddir,
reposdir=_RHSM_TMP_DIR)
exit_on_failed_download(paths)
def fix_default_kernel():
"""
Systems converted from Oracle Linux or CentOS Linux may have leftover kernel-uek or kernel-plus in
/etc/sysconfig/kernel as DEFAULTKERNEL.
This function fixes that by replacing the DEFAULTKERNEL setting from kernel-uek or kernel-plus to kernel for RHEL 6,7 and kernel-core for RHEL 8
"""
loggerinst = logging.getLogger(__name__)
loggerinst.info("Checking for incorrect boot kernel")
kernel_sys_cfg = utils.get_file_content("/etc/sysconfig/kernel")
possible_kernels = ["kernel-uek", "kernel-plus"]
kernel_to_change = next(
iter(kernel for kernel in possible_kernels
if kernel in kernel_sys_cfg), None)
if kernel_to_change:
loggerinst.warning(
"Detected leftover boot kernel, changing to RHEL kernel")
# need to change to "kernel" in rhel6, 7 and "kernel-core" in rhel8
new_kernel_str = "DEFAULTKERNEL=" + (
"kernel" if system_info.version.major in [6, 7] else "kernel-core")
kernel_sys_cfg = kernel_sys_cfg.replace(
"DEFAULTKERNEL=" + kernel_to_change, new_kernel_str)
utils.store_content_to_file("/etc/sysconfig/kernel", kernel_sys_cfg)
loggerinst.info("Boot kernel %s was changed to %s" %
(kernel_to_change, new_kernel_str))
else:
loggerinst.debug("Boot kernel validated.")
def _generate_rpm_va(self):
"""Verify the installed files on the system with the rpm metadata
for debug and support purposes."""
if tool_opts.no_rpm_va:
self.logger.info("Skipping execution of 'rpm -Va'.")
return
self.logger.info("Running the 'rpm -Va' command which can take several"
" minutes. It can be disabled by using the"
" --no-rpm-va option.")
rpm_va, _ = utils.run_subprocess("rpm -Va", print_output=False)
output_file = os.path.join(logger.LOG_DIR, "rpm_va.log")
utils.store_content_to_file(output_file, rpm_va)
self.logger.info("The 'rpm -Va' output has been stored in the %s file"
% output_file)
def generate_rpm_va(self, log_filename=PRE_RPM_VA_LOG_FILENAME):
"""RPM is able to detect if any file installed as part of a package has been changed in any way after the
package installation.
Here we are getting a list of changed package files of all the installed packages. Such a list is useful for
debug and support purposes. It's being saved to the default log folder as log_filename."""
if tool_opts.no_rpm_va:
self.logger.info("Skipping the execution of 'rpm -Va'.")
return
self.logger.info("Running the 'rpm -Va' command which can take several"
" minutes. It can be disabled by using the"
" --no-rpm-va option.")
rpm_va, _ = utils.run_subprocess("rpm -Va", print_output=False)
output_file = os.path.join(logger.LOG_DIR, log_filename)
utils.store_content_to_file(output_file, rpm_va)
self.logger.info("The 'rpm -Va' output has been stored in the %s file" % output_file)