perf: add TCP Nginx+LDPRELOAD suites

1. Suite steup add download nginx
2. Add nginx-1.14.2/1.15.0 ldp test suite
3. Add NginxUtils,NginxConfigGenerator method
4. Taskset the PID of nginx to the unused cores in VPP and these cores are under NIC's NUMA ID
5. cleanup add Kill Processes - nohup

Signed-off-by: xizhanx <xix.zhang@intel.com>
Change-Id: Idbf0e4ec3bf63e88281a8e3e34f52e00a6801c85
Signed-off-by: Dave Wallace <dwallacelf@gmail.com>

1 files changed, 56 insertions, 4 deletions

diff --git a/resources/libraries/python/HoststackUtil.py b/resources/libraries/python/HoststackUtil.py
index c307946698..e797c3c206 100644
--- a/resources/libraries/python/HoststackUtil.py
+++ b/resources/libraries/python/HoststackUtil.py
@@ -1,4 +1,4 @@
-# Copyright (c) 2020 Cisco and/or its affiliates.
+# Copyright (c) 2021 Cisco 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:
@@ -165,6 +165,39 @@ class HoststackUtil():
         return stdout_log, stderr_log
 
     @staticmethod
+    def get_nginx_command(nginx_attributes, nginx_version, nginx_ins_dir):
+        """Construct the NGINX command using the specified attributes.
+
+        :param nginx_attributes: NGINX test program attributes.
+        :param nginx_version: NGINX version.
+        :param nginx_ins_dir: NGINX install dir.
+        :type nginx_attributes: dict
+        :type nginx_version: str
+        :type nginx_ins_dir: str
+        :returns: Command line components of the NGINX command
+            'env_vars' - environment variables
+            'name' - program name
+            'args' - command arguments.
+            'path' - program path.
+        :rtype: dict
+        """
+        nginx_cmd = dict()
+        nginx_cmd[u"env_vars"] = f"VCL_CONFIG={Constants.REMOTE_FW_DIR}/" \
+                                 f"{Constants.RESOURCES_TPL_VCL}/" \
+                                 f"{nginx_attributes[u'vcl_config']}"
+        if nginx_attributes[u"ld_preload"]:
+            nginx_cmd[u"env_vars"] += \
+                f" LD_PRELOAD={Constants.VCL_LDPRELOAD_LIBRARY}"
+        if nginx_attributes[u'transparent_tls']:
+            nginx_cmd[u"env_vars"] += u" LDP_ENV_TLS_TRANS=1"
+
+        nginx_cmd[u"name"] = u"nginx"
+        nginx_cmd[u"path"] = f"{nginx_ins_dir}nginx-{nginx_version}/sbin/"
+        nginx_cmd[u"args"] = f"-c {nginx_ins_dir}/" \
+                             f"nginx-{nginx_version}/conf/nginx.conf"
+        return nginx_cmd
+
+    @staticmethod
     def start_hoststack_test_program(node, namespace, core_list, program):
         """Start the specified HostStack test program.
 
@@ -194,9 +227,13 @@ class HoststackUtil():
 
         env_vars = f"{program[u'env_vars']} " if u"env_vars" in program else u""
         args = program[u"args"]
-        cmd = f"nohup {shell_cmd} \'{env_vars}taskset --cpu-list {core_list} " \
-            f"{program_name} {args} >/tmp/{program_name}_stdout.log " \
-            f"2>/tmp/{program_name}_stderr.log &\'"
+        program_path = program.get(u"path", u"")
+        # NGINX used `worker_cpu_affinity` in configuration file
+        taskset_cmd = u"" if program_name == u"nginx" else \
+                                             f"taskset --cpu-list {core_list}"
+        cmd = f"nohup {shell_cmd} \'{env_vars}{taskset_cmd} " \
+              f"{program_path}{program_name} {args} >/tmp/{program_name}_" \
+              f"stdout.log 2>/tmp/{program_name}_stderr.log &\'"
         try:
             exec_cmd_no_error(node, cmd, sudo=True)
             return DUTSetup.get_pid(node, program_name)[0]
@@ -350,3 +387,18 @@ class HoststackUtil():
         :rtype: bool
         """
         return server_defer_fail and client_defer_fail
+
+    @staticmethod
+    def log_vpp_hoststack_data(node):
+        """Retrieve and log VPP HostStack data.
+
+        :param node: DUT node.
+        :type node: dict
+        :raises RuntimeError: If node subtype is not a DUT or startup failed.
+        """
+
+        if node[u"type"] != u"DUT":
+            raise RuntimeError(u"Node type is not a DUT!")
+
+        PapiSocketExecutor.run_cli_cmd(node, u"show error")
+        PapiSocketExecutor.run_cli_cmd(node, u"show interface")