Move: WRK installation into ansible

- Remove ability to install from framework.
- Control via ansible with other dependencies.

Signed-off-by: Peter Mikus <pmikus@cisco.com>
Change-Id: I5fd0ca18b4f76c30b6c28b4dcd15e538e01cb315

2 files changed, 16 insertions, 83 deletions

diff --git a/resources/tools/wrk/wrk.py b/resources/tools/wrk/wrk.py
index 43355b99fb..b7989b8852 100644
--- a/resources/tools/wrk/wrk.py
+++ b/resources/tools/wrk/wrk.py
@@ -57,13 +57,13 @@ REGEX_LATENCY_DIST = \
 REGEX_NUM = r"(\d*\.*\d*)(\D*)"
 
 
-def install_wrk(tg_node):
-    """Install wrk on the TG node.
+def check_wrk(tg_node):
+    """Check if wrk is installed on the TG node.
 
     :param tg_node: Traffic generator node.
     :type tg_node: dict
     :raises: RuntimeError if the given node is not a TG node or if the
-    installation fails.
+        command is not availble.
     """
 
     if tg_node['type'] != NodeType.TG:
@@ -74,33 +74,10 @@ def install_wrk(tg_node):
 
     ret, _, _ = ssh.exec_command(
         "sudo -E "
-        "sh -c '{0}/resources/tools/wrk/wrk_utils.sh install false'".
-        format(Constants.REMOTE_FW_DIR), timeout=1800)
+        "sh -c '{0}/resources/tools/wrk/wrk_utils.sh installed'".
+        format(Constants.REMOTE_FW_DIR))
     if int(ret) != 0:
-        raise RuntimeError('Installation of wrk on TG node failed.')
-
-
-def destroy_wrk(tg_node):
-    """Destroy wrk on the TG node.
-
-    :param tg_node: Traffic generator node.
-    :type tg_node: dict
-    :raises: RuntimeError if the given node is not a TG node or the removal of
-    wrk failed.
-    """
-
-    if tg_node['type'] != NodeType.TG:
-        raise RuntimeError('Node type is not a TG.')
-
-    ssh = SSH()
-    ssh.connect(tg_node)
-
-    ret, _, _ = ssh.exec_command(
-        "sudo -E "
-        "sh -c '{0}/resources/tools/wrk/wrk_utils.sh destroy'".
-        format(Constants.REMOTE_FW_DIR), timeout=1800)
-    if int(ret) != 0:
-        raise RuntimeError('Removal of wrk from the TG node failed.')
+        raise RuntimeError('WRK is not installed on TG node.')
 
 
 def run_wrk(tg_node, profile_name, tg_numa, test_type, warm_up=False):
diff --git a/resources/tools/wrk/wrk_utils.sh b/resources/tools/wrk/wrk_utils.sh
index 2b9f6cf296..1c77fea731 100755
--- a/resources/tools/wrk/wrk_utils.sh
+++ b/resources/tools/wrk/wrk_utils.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-# Copyright (c) 2018 Cisco and/or its affiliates.
+# Copyright (c) 2019 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:
@@ -14,59 +14,19 @@
 
 set -x
 
-WRK_VERSION="4.0.2"
-WRK_TAR=${WRK_VERSION}".tar.gz"
-WRK_DWNLD_PATH="https://github.com/wg/wrk/archive"
-WRK_TARGET="/opt"
-WRK_INSTALL_DIR=${WRK_TARGET}/wrk-${WRK_VERSION}
+function wrk_utils.installed {
 
-function wrk_utils.install {
-    # Install wrk
+    # Check if the WRK utility is installed. Fail if not installed.
 
-    # Directory for wrk:
-    dir=${1}
-    # Force the installation:
-    force=${2:-false}
+    # Returns:
+    # - 0 - If command is installed.
+    # - 1 - If command is not installed.
 
-    # Check if wrk is installed:
-    if [ "${force}" = true ]; then
-        wrk_utils.destroy
-    else
-        which wrk
-        if [ $? -eq 0 ]; then
-            test -d ${dir}/${WRK_INSTALL_DIR} && echo "WRK already installed: ${dir}/${WRK_INSTALL_DIR}" && exit 0
-        fi
-    fi
-
-    # Install pre-requisites:
-    apt-get update
-    apt-get install build-essential libssl-dev -y
-
-    # Remove previous installation:
-    wrk_utils.destroy
-
-    # Change the directory:
-    cd ${WRK_TARGET}
+    set -exuo pipefail
 
-    # Get the specified version:
-    wget ${WRK_DWNLD_PATH}/${WRK_TAR}
-    tar xzf ${WRK_TAR}
-    rm ${WRK_TAR}
-    cd ${WRK_INSTALL_DIR}
-
-    # Build the wrk:
-    make
-
-    # Move the executable to somewhere in the PATH:
-    cp wrk /usr/local/bin
+    command -v wrk
 }
 
-function wrk_utils.destroy {
-    # Remove wrk
-
-    sudo rm /usr/local/bin/wrk || true
-    sudo rm -rf ${WRK_INSTALL_DIR} || true
-}
 
 function wrk_utils.traffic_1_url_1_core {
     # Send traffic
@@ -271,12 +231,8 @@ function wrk_utils.traffic_n_urls_m_cores {
 
 args=("$@")
 case ${1} in
-    install)
-        force=${2}
-        wrk_utils.install ${force}
-        ;;
-    destroy)
-        wrk_utils.destroy
+    installed)
+        wrk_utils.installed
         ;;
     traffic_1_url_1_core)
         wrk_utils.traffic_1_url_1_core  "${args[@]:1}"