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How to use get_creds_by_roles method in tempest

Best Python code snippet using tempest_python

accounts.py

...196        creds = self._get_creds()197        alt_credential = cred_provider.get_credentials(**creds)198        self.isolated_creds['alt'] = alt_credential199        return alt_credential200    def get_creds_by_roles(self, roles, force_new=False):201        roles = list(set(roles))202        exist_creds = self.isolated_creds.get(str(roles), None)203        # The force kwarg is used to allocate an additional set of creds with204        # the same role list. The index used for the previously allocation205        # in the isolated_creds dict will be moved.206        if exist_creds and not force_new:207            return exist_creds208        elif exist_creds and force_new:209            new_index = str(roles) + '-' + str(len(self.isolated_creds))210            self.isolated_creds[new_index] = exist_creds211        creds = self._get_creds(roles=roles)212        role_credential = cred_provider.get_credentials(**creds)213        self.isolated_creds[str(roles)] = role_credential214        return role_credential215    def clear_isolated_creds(self):216        for creds in self.isolated_creds.values():217            self.remove_credentials(creds)218    def get_admin_creds(self):219        return self.get_creds_by_roles([CONF.identity.admin_role])220    def is_role_available(self, role):221        if self.use_default_creds:222            return False223        else:224            if self.hash_dict['roles'].get(role):225                return True226            return False227    def admin_available(self):228        return self.is_role_available(CONF.identity.admin_role)229class NotLockingAccounts(Accounts):230    """Credentials provider which always returns the first and second231    configured accounts as primary and alt users.232    This credential provider can be used in case of serial test execution233    to preserve the current behaviour of the serial tempest run.234    """235    def _unique_creds(self, cred_arg=None):236        """Verify that the configured credentials are valid and distinct """237        if self.use_default_creds:238            try:239                user = self.get_primary_creds()240                alt_user = self.get_alt_creds()241                return getattr(user, cred_arg) != getattr(alt_user, cred_arg)242            except exceptions.InvalidCredentials as ic:243                msg = "At least one of the configured credentials is " \244                      "not valid: %s" % ic.message245                raise exceptions.InvalidConfiguration(msg)246        else:247            # TODO(andreaf) Add a uniqueness check here248            return len(self.hash_dict['creds']) > 1249    def is_multi_user(self):250        return self._unique_creds('username')251    def is_multi_tenant(self):252        return self._unique_creds('tenant_id')253    def get_creds(self, id, roles=None):254        try:255            hashes = self._get_match_hash_list(roles)256            # No need to sort the dict as within the same python process257            # the HASH seed won't change, so subsequent calls to keys()258            # will return the same result259            _hash = hashes[id]260        except IndexError:261            msg = 'Insufficient number of users provided'262            raise exceptions.InvalidConfiguration(msg)263        return self.hash_dict['creds'][_hash]264    def get_primary_creds(self):265        if self.isolated_creds.get('primary'):266            return self.isolated_creds.get('primary')267        if not self.use_default_creds:268            creds = self.get_creds(0)269            primary_credential = cred_provider.get_credentials(**creds)270        else:271            primary_credential = cred_provider.get_configured_credentials(272                'user')273        self.isolated_creds['primary'] = primary_credential274        return primary_credential275    def get_alt_creds(self):276        if self.isolated_creds.get('alt'):277            return self.isolated_creds.get('alt')278        if not self.use_default_creds:279            creds = self.get_creds(1)280            alt_credential = cred_provider.get_credentials(**creds)281        else:282            alt_credential = cred_provider.get_configured_credentials(283                'alt_user')284        self.isolated_creds['alt'] = alt_credential285        return alt_credential286    def clear_isolated_creds(self):287        self.isolated_creds = {}288    def get_admin_creds(self):289        if not self.use_default_creds:290            return self.get_creds_by_roles([CONF.identity.admin_role])291        else:292            creds = cred_provider.get_configured_credentials(293                "identity_admin", fill_in=False)294            self.isolated_creds['admin'] = creds295            return creds296    def get_creds_by_roles(self, roles, force_new=False):297        roles = list(set(roles))298        exist_creds = self.isolated_creds.get(str(roles), None)299        index = 0300        if exist_creds and not force_new:301            return exist_creds302        elif exist_creds and force_new:303            new_index = str(roles) + '-' + str(len(self.isolated_creds))304            self.isolated_creds[new_index] = exist_creds305            # Figure out how many existing creds for this roles set are present306            # use this as the index the returning hash list to ensure separate307            # creds are returned with force_new being True308            for creds_names in self.isolated_creds:309                if str(roles) in creds_names:310                    index = index + 1...

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