code: def _container_init(self):
          
          if ENV_CONTAINER in os.environ:
              if os.environ[ENV_CONTAINER] in ['docker', 'oci']:
                  self._in_container = True
          if ENV_HOST_SYSROOT in os.environ:
              self._host_sysroot = os.environ[ENV_HOST_SYSROOT]
          use_sysroot = self._in_container and self._host_sysroot != '/'
          if use_sysroot:
              host_tmp_dir = os.path.abspath(self._host_sysroot + self._tmp_dir)
              self._tmp_dir = host_tmp_dir
          return self._host_sysroot if use_sysroot else None
docs: Check if sos is running in a container and perform container
          specific initialisation based on ENV_HOST_SYSROOT.