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Diffstat (limited to 'resources/libraries/python/NginxConfigGenerator.py')
-rw-r--r-- | resources/libraries/python/NginxConfigGenerator.py | 244 |
1 files changed, 244 insertions, 0 deletions
diff --git a/resources/libraries/python/NginxConfigGenerator.py b/resources/libraries/python/NginxConfigGenerator.py new file mode 100644 index 0000000000..1a0f5f077a --- /dev/null +++ b/resources/libraries/python/NginxConfigGenerator.py @@ -0,0 +1,244 @@ +# Copyright (c) 2021 Intel and/or its affiliates. +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at: +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +"""Nginx Configuration File Generator library. +""" + +from resources.libraries.python.ssh import exec_cmd_no_error +from resources.libraries.python.topology import NodeType +from resources.libraries.python.NginxUtil import NginxUtil + +__all__ = [u"NginxConfigGenerator"] + + +class NginxConfigGenerator: + """NGINX Configuration File Generator.""" + + def __init__(self): + """Initialize library.""" + # VPP Node to apply configuration on + self._node = u"" + # NGINX Startup config location + self._nginx_path = u"/usr/local/nginx/" + # Serialized NGinx Configuration + self._nginx_config = u"" + # VPP Configuration + self._nodeconfig = dict() + + def set_node(self, node): + """Set DUT node. + + :param node: Node to store configuration on. + :type node: dict + :raises RuntimeError: If Node type is not DUT. + """ + if node[u"type"] != NodeType.DUT: + raise RuntimeError( + u"Startup config can only be applied to DUTnode." + ) + self._node = node + + def set_nginx_path(self, packages_dir, nginx_version): + """Set NGINX Conf Name. + + :param packages_dir: NGINX install path. + :param nginx_version: Test NGINX version. + :type packages_dir: str + :type nginx_version: str + :raises RuntimeError: If Node type is not DUT. + """ + if nginx_version: + self._nginx_path = f"{packages_dir}/nginx-{nginx_version}" + + def add_http_server_listen(self, value): + """Add Http Server listen port configuration.""" + path = [u"http", u"server", u"listen"] + self.add_config_item(self._nodeconfig, value, path) + + def add_http_server_root(self, value=u"html"): + """Add Http Server root configuration.""" + path = [u"http", u"server", u"root"] + self.add_config_item(self._nodeconfig, value, path) + + def add_http_server_index(self, value=u"index.html index.htm"): + """Add Http Server index configuration.""" + path = [u"http", u"server", u"index"] + self.add_config_item(self._nodeconfig, value, path) + + def add_config_item(self, config, value, path): + """Add NGINX configuration item. + + :param config: Startup configuration of node. + :param value: Value to insert. + :param path: Path where to insert item. + :type config: dict + :type value: str + :type path: list + """ + if len(path) == 1: + config[path[0]] = value + return + if path[0] not in config: + config[path[0]] = dict() + elif isinstance(config[path[0]], str): + config[path[0]] = dict() if config[path[0]] == u"" \ + else {config[path[0]]: u""} + self.add_config_item(config[path[0]], value, path[1:]) + + def dump_config(self, obj, level=-1): + """Dump the startup configuration in NGINX config format. + + :param obj: Python Object to print. + :param level: Nested level for indentation. + :type obj: Obj + :type level: int + :returns: nothing + """ + indent = u" " + if level >= 0: + self._nginx_config += f"{level * indent}{{\n" + if isinstance(obj, dict): + for key, val in obj.items(): + if hasattr(val, u"__iter__") and not isinstance(val, str): + self._nginx_config += f"{(level + 1) * indent}{key}\n" + self.dump_config(val, level + 1) + else: + self._nginx_config += f"{(level + 1) * indent}" \ + f"{key} {val};\n" + else: + for val in obj: + self._nginx_config += f"{(level + 1) * indent}{val};\n" + if level >= 0: + self._nginx_config += f"{level * indent}}}\n" + + def write_config(self, filename=None): + """Generate and write NGINX startup configuration to file. + + :param filename: NGINX configuration file name. + :type filename: str + """ + if filename is None: + filename = f"{self._nginx_path}/conf/nginx.conf" + self.dump_config(self._nodeconfig) + cmd = f"echo \"{self._nginx_config}\" | sudo tee {filename}" + exec_cmd_no_error( + self._node, cmd, message=u"Writing config file failed!" + ) + + def add_http_server_location(self, size): + """Add Http Server location configuration. + + :param size: File size. + :type size: int + """ + if size == 0: + files = u"return" + elif size >= 1024: + files = f"{int(size / 1024)}KB.json" + else: + files = f"{size}B.json" + key = f"{files}" + size_str = size * u"x" + value = "200 '%s'" % size_str + path = [u"http", u"server", f"location /{key}", u"return"] + self.add_config_item(self._nodeconfig, value, path) + + def add_http_access_log(self, value=u"off"): + """Add Http access_log configuration.""" + path = [u"http", u"access_log"] + self.add_config_item(self._nodeconfig, value, path) + + def add_http_include(self, value=u"mime.types"): + """Add Http include configuration.""" + path = [u"http", u"include"] + self.add_config_item(self._nodeconfig, value, path) + + def add_http_default_type(self, value=u"application/octet-stream"): + """Add Http default_type configuration.""" + path = [u"http", u"default_type"] + self.add_config_item(self._nodeconfig, value, path) + + def add_http_sendfile(self, value=u"on"): + """Add Http sendfile configuration.""" + path = [u"http", u"sendfile"] + self.add_config_item(self._nodeconfig, value, path) + + def add_http_keepalive_timeout(self, value): + """Add Http keepalive alive timeout configuration.""" + path = [u"http", u"keepalive_timeout"] + self.add_config_item(self._nodeconfig, value, path) + + def add_http_keepalive_requests(self, value): + """Add Http keepalive alive requests configuration.""" + path = [u"http", u"keepalive_requests"] + self.add_config_item(self._nodeconfig, value, path) + + def add_events_use(self, value=u"epoll"): + """Add Events use configuration.""" + path = [u"events", u"use"] + self.add_config_item(self._nodeconfig, value, path) + + def add_events_worker_connections(self, value=10240): + """Add Events worker connections configuration.""" + path = [u"events", u"worker_connections"] + self.add_config_item(self._nodeconfig, value, path) + + def add_events_accept_mutex(self, value=u"off"): + """Add Events accept mutex configuration.""" + path = [u"events", u"accept_mutex"] + self.add_config_item(self._nodeconfig, value, path) + + def add_events_multi_accept(self, value=u"off"): + """Add Events multi accept configuration.""" + path = [u"events", u"multi_accept"] + self.add_config_item(self._nodeconfig, value, path) + + def add_worker_rlimit_nofile(self, value=10240): + """Add Events worker rlimit nofile configuration.""" + path = [u"worker_rlimit_nofile"] + self.add_config_item(self._nodeconfig, value, path) + + def add_master_process(self, value=u"on"): + """Add master process configuration.""" + path = [u"master_process"] + self.add_config_item(self._nodeconfig, value, path) + + def add_daemon(self, value=u"off"): + """Add daemon configuration.""" + path = [u"daemon"] + self.add_config_item(self._nodeconfig, value, path) + + def add_worker_processes(self, value, smt_used): + """Add worker processes configuration.""" + # nginx workers : vpp used phy workers = 2:1 + if smt_used: + value = value * 4 + else: + value = value * 2 + path = [u"worker_processes"] + self.add_config_item(self._nodeconfig, value, path) + + def apply_config(self, filename=None, verify_nginx=True): + """Generate and write NGINX configuration to file and + verify configuration. + + :param filename: NGINX configuration file name. + :param verify_nginx: Verify NGINX configuration. + :type filename: str + :type verify_nginx: bool + """ + self.write_config(filename=filename) + + app_path = f"{self._nginx_path}/sbin/nginx" + if verify_nginx: + NginxUtil.nginx_config_verify(self._node, app_path) |