Adding SDWAN testing for KUD containerized installer script

Please refer ICN SDWAN Module Design for architecture
link:https://wiki.akraino.org/display/AK/SDWAN+Module+Design

Issue-ID: MULTICLOUD-956
Co-authored-by: Huifeng Le  <huifeng.le@intel.com>
Signed-off-by: r.kuralamudhan <kuralamudhan.ramakrishnan@intel.com>
Change-Id: I4bc35bc62f6bab52a5d290829f7406424d72d5ae

7 files changed, 146 insertions, 0 deletions

diff --git a/kud/tests/sdwan/build/Dockerfile_1806_mwan3.tpl b/kud/tests/sdwan/build/Dockerfile_1806_mwan3.tpl
new file mode 100644
index 00000000..85c7d358
--- /dev/null
+++ b/kud/tests/sdwan/build/Dockerfile_1806_mwan3.tpl
@@ -0,0 +1,26 @@
+FROM openwrt-1806-4-base
+
+#EXPOSE 80
+ENV http_proxy={docker_proxy}
+ENV https_proxy={docker_proxy}
+ENV no_proxy=localhost,120.0.0.1,192.168.*
+
+RUN mkdir /var/lock && \
+    opkg update && \
+    opkg install uhttpd-mod-lua && \
+    uci set uhttpd.main.interpreter='.lua=/usr/bin/lua' && \
+    uci commit uhttpd && \
+    opkg install mwan3 && \
+    opkg install luci-app-mwan3; exit 0
+
+COPY system /etc/config/system
+COPY commands.lua /usr/lib/lua/luci/controller/
+
+ENV http_proxy=
+ENV https_proxy=
+ENV no_proxy=
+
+USER root
+
+# using exec format so that /sbin/init is proc 1 (see procd docs)
+CMD ["/sbin/init"]
diff --git a/kud/tests/sdwan/build/Dockerfile_1806_mwan3_noproxy.tpl b/kud/tests/sdwan/build/Dockerfile_1806_mwan3_noproxy.tpl
new file mode 100644
index 00000000..8b5c57d2
--- /dev/null
+++ b/kud/tests/sdwan/build/Dockerfile_1806_mwan3_noproxy.tpl
@@ -0,0 +1,19 @@
+FROM openwrt-1806-4-base
+
+#EXPOSE 80
+
+RUN mkdir /var/lock && \
+    opkg update && \
+    opkg install uhttpd-mod-lua && \
+    uci set uhttpd.main.interpreter='.lua=/usr/bin/lua' && \
+    uci commit uhttpd && \
+    opkg install mwan3 && \
+    opkg install luci-app-mwan3; exit 0
+
+COPY system /etc/config/system
+COPY commands.lua /usr/lib/lua/luci/controller/
+
+USER root
+
+# using exec format so that /sbin/init is proc 1 (see procd docs)
+CMD ["/sbin/init"]
diff --git a/kud/tests/sdwan/build/README.md b/kud/tests/sdwan/build/README.md
new file mode 100644
index 00000000..87e21956
--- /dev/null
+++ b/kud/tests/sdwan/build/README.md
@@ -0,0 +1,10 @@
+# Introduction:
+Please refer ICN SDWAN Module Design for architecture introduction
+link:https://wiki.akraino.org/display/AK/SDWAN+Module+Design
+
+# SDWAN Docker Image build instructions:
+Use below steps to build openwrt docker image: openwrt-1806-mwan3
+(1) update set_proxy file with proxy used for docker build
+(2) execute build_image.sh
+cd build
+sudo bash build_image.sh
diff --git a/kud/tests/sdwan/build/build_image.sh b/kud/tests/sdwan/build/build_image.sh
new file mode 100644
index 00000000..7ff6e20b
--- /dev/null
+++ b/kud/tests/sdwan/build/build_image.sh
@@ -0,0 +1,39 @@
+#!/bin/bash
+
+# usage: build_images.sh
+
+set -ex
+base_image_tag=openwrt-1806-4-base
+docker_file=Dockerfile_1806_mwan3
+image_tag=openwrt-1806-mwan3
+package=openwrt-18.06.4-x86-64-generic-rootfs
+
+# build openwrt base docker images
+base_image=`docker images | grep $base_image_tag | awk '{print $1}'`
+if [ -z "$base_image" ]; then
+    # download driver source package
+    if [ ! -e /tmp/$package.tar.gz ]; then
+        wget -P /tmp https://downloads.openwrt.org/releases/18.06.4/targets/x86/64/$package.tar.gz
+    fi
+    cp /tmp/$package.tar.gz .
+
+    docker import $package.tar.gz $base_image_tag
+fi
+
+# generate Dockerfile
+test -f ./set_proxy && . set_proxy
+docker_proxy=${docker_proxy-""}
+if [ -z "$docker_proxy" ]; then
+    cp ${docker_file}_noproxy.tpl $docker_file
+else
+    cp $docker_file.tpl $docker_file
+    sed -i "s,{docker_proxy},$docker_proxy,g" $docker_file
+fi
+
+# build docker images for openwrt with wman3
+docker build --network=host -f $docker_file -t $image_tag .
+
+# clear
+docker image rm $base_image_tag
+rm -rf $docker_file
+rm -rf $package.tar.gz
diff --git a/kud/tests/sdwan/build/commands.lua b/kud/tests/sdwan/build/commands.lua
new file mode 100644
index 00000000..d99f4579
--- /dev/null
+++ b/kud/tests/sdwan/build/commands.lua
@@ -0,0 +1,43 @@
+-- Licensed to the public under the GNU General Public License v2.
+
+module("luci.controller.commands", package.seeall)
+
+sys = require "luci.sys"
+ut = require "luci.util"
+io = require "io"
+
+ip = "ip -4 "
+
+function index()
+    entry({"admin", "config", "command"},
+	call("execute")).dependent = false
+end
+
+function trim(s)
+    return s:match("^%s*(.-)%s*$")
+end
+
+function split_and_trim(str, sep)
+    local array = {}
+    local reg = string.format("([^%s]+)", sep)
+    for item in string.gmatch(str, reg) do
+        item_trimed = trim(item)
+        if string.len(item_trimed) > 0 then
+            table.insert(array, item_trimed)
+        end
+    end
+    return array
+end
+
+function execute()
+    local commands = luci.http.formvalue("command")
+    io.stderr:write("Execute command: %s\n" % commands)
+
+    local command_array = split_and_trim(commands, ";")
+    for index, command in ipairs(command_array) do
+        sys.exec(command)
+    end
+
+    luci.http.prepare_content("application/json")
+    luci.http.write_json("{'status':'ok'}")
+end
diff --git a/kud/tests/sdwan/build/set_proxy b/kud/tests/sdwan/build/set_proxy
new file mode 100644
index 00000000..7a195fe5
--- /dev/null
+++ b/kud/tests/sdwan/build/set_proxy
@@ -0,0 +1,2 @@
+# set docker proxy with below line, the build script will use this info
+#docker_proxy=
diff --git a/kud/tests/sdwan/build/system b/kud/tests/sdwan/build/system
new file mode 100644
index 00000000..5165430f
--- /dev/null
+++ b/kud/tests/sdwan/build/system
@@ -0,0 +1,7 @@
+config system
+    option log_file '/var/log/mylog'
+    option timezone 'UTC'
+    option ttylogin '0'
+    option log_size '64'
+    option urandom_seed '0'
+EOF