Make ovn-central network interface configurable

installer.sh script is configuring ovn-central address <ip>:<port>
to environment variable.
Ip address is detected from the ovn-central host through ansible
by grepping ifconfig output, but in this step detected network
interface is hard-coded in the code to be "eth1".

This commit makes network interface configurable in aio/vagrant
deployment.

Issue-ID: MULTICLOUD-621

Change-Id: Icbe22ffdcb45c5f16067ea609eec76fb70c0ea78
Signed-off-by: Samuli Silvius <s.silvius@partner.samsung.com>

4 files changed, 38 insertions, 29 deletions

diff --git a/kud/hosting_providers/baremetal/aio.sh b/kud/hosting_providers/baremetal/aio.sh
index 416a1fef..c9903cd3 100755
--- a/kud/hosting_providers/baremetal/aio.sh
+++ b/kud/hosting_providers/baremetal/aio.sh
@@ -15,9 +15,13 @@ set -o pipefail
 aio_dir=$(cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd)
 cd ${aio_dir}/../vagrant
 
+# For aio inventory by default get ovn central ip from local host default interface.
+# This variable used only in this file, but env variable defined to enable user to override it prior calling aio.sh.
+OVN_CENTRAL_IP_ADDRESS=${OVN_CENTRAL_IP_ADDRESS:-$(hostname -I | cut -d ' ' -f 1)}
+
 cat <<EOL > inventory/hosts.ini
 [all]
-localhost
+localhost ansible_ssh_host=${OVN_CENTRAL_IP_ADDRESS} ansible_ssh_port=22
 
 [kube-master]
 localhost
diff --git a/kud/hosting_providers/vagrant/Vagrantfile b/kud/hosting_providers/vagrant/Vagrantfile
index d068b84a..2d1b5ab4 100644
--- a/kud/hosting_providers/vagrant/Vagrantfile
+++ b/kud/hosting_providers/vagrant/Vagrantfile
@@ -120,7 +120,7 @@ Vagrant.configure("2") do |config|
     installer.vm.network :private_network, :ip => "10.10.10.2", :type => :static
     installer.vm.synced_folder '../../../', '/home/vagrant/multicloud-k8s/', type: sync_type
     installer.vm.provision 'shell', privileged: false do |sh|
-      sh.env = {'KUD_PLUGIN_ENABLED': 'false'}
+      sh.env = {'KUD_PLUGIN_ENABLED': 'false', 'OVN_CENTRAL_INTERFACE': 'eth1'}
       sh.inline = <<-SHELL
         cp /vagrant/insecure_keys/key.pub /home/vagrant/.ssh/id_rsa.pub
         cp /vagrant/insecure_keys/key /home/vagrant/.ssh/id_rsa
diff --git a/kud/hosting_providers/vagrant/installer.sh b/kud/hosting_providers/vagrant/installer.sh
index c7715b59..69a76b0a 100755
--- a/kud/hosting_providers/vagrant/installer.sh
+++ b/kud/hosting_providers/vagrant/installer.sh
@@ -9,8 +9,13 @@
 ##############################################################################
 
 set -o errexit
+set -o nounset
 set -o pipefail
 
+INSTALLER_DIR=$(cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd)
+
+source ${INSTALLER_DIR}/../../tests/_functions.sh
+
 # _install_go() - Install GoLang package
 function _install_go {
     version=$(grep "go_version" ${kud_playbooks}/kud-vars.yml | awk -F "'" '{print $2}')
@@ -63,15 +68,15 @@ function _install_docker {
     sudo apt-get install -y docker-ce
 
     sudo mkdir -p /etc/systemd/system/docker.service.d
-    if [ $http_proxy ]; then
+    if [ ${http_proxy:-} ]; then
         echo "[Service]" | sudo tee /etc/systemd/system/docker.service.d/http-proxy.conf
         echo "Environment=\"HTTP_PROXY=$http_proxy\"" | sudo tee --append /etc/systemd/system/docker.service.d/http-proxy.conf
     fi
-    if [ $https_proxy ]; then
+    if [ ${https_proxy:-} ]; then
         echo "[Service]" | sudo tee /etc/systemd/system/docker.service.d/https-proxy.conf
         echo "Environment=\"HTTPS_PROXY=$https_proxy\"" | sudo tee --append /etc/systemd/system/docker.service.d/https-proxy.conf
     fi
-    if [ $no_proxy ]; then
+    if [ ${no_proxy:-} ]; then
         echo "[Service]" | sudo tee /etc/systemd/system/docker.service.d/no-proxy.conf
         echo "Environment=\"NO_PROXY=$no_proxy\"" | sudo tee --append /etc/systemd/system/docker.service.d/no-proxy.conf
     fi
@@ -86,13 +91,12 @@ function _install_docker {
 }
 
 function _set_environment_file {
-    ansible_ifconfig=$(ansible ovn-central[0] -i $kud_inventory -m shell -a "ifconfig eth1 |grep \"inet addr\" |awk '{print \$2}' |awk -F: '{print \$2}'")
-    if [[ $ansible_ifconfig != *CHANGED* ]]; then
-        echo "Fail to get the OVN central IP address from eth1 nic"
-        exit
-    fi
-    echo "export OVN_CENTRAL_ADDRESS=$(echo ${ansible_ifconfig#*>>} | tr '\n' ':')6641" | sudo tee --append /etc/environment
+    # By default ovn central interface is the first active network interface on localhost. If other wanted, need to export this variable in aio.sh or Vagrant file.
+    OVN_CENTRAL_INTERFACE=${OVN_CENTRAL_INTERFACE:-$(ip addr show | awk '/inet.*brd/{print $NF; exit}')}
+    echo "export OVN_CENTRAL_INTERFACE=${OVN_CENTRAL_INTERFACE}" | sudo tee --append /etc/environment
+    echo "export OVN_CENTRAL_ADDRESS=$(get_ovn_central_address)" | sudo tee --append /etc/environment
     echo "export KUBE_CONFIG_DIR=/opt/kubeconfig" | sudo tee --append /etc/environment
+    echo "export CSAR_DIR=/opt/csar" | sudo tee --append /etc/environment
 }
 
 # install_k8s() - Install Kubernetes using kubespray tool
@@ -114,16 +118,16 @@ function install_k8s {
 
     sudo -E pip install -r $dest_folder/kubespray-$version/requirements.txt
     rm -f $kud_inventory_folder/group_vars/all.yml 2> /dev/null
-    if [[ -n "${verbose}" ]]; then
+    if [[ -n "${verbose:-}" ]]; then
         echo "kube_log_level: 5" | tee $kud_inventory_folder/group_vars/all.yml
     else
         echo "kube_log_level: 2" | tee $kud_inventory_folder/group_vars/all.yml
     fi
     echo "kubeadm_enabled: true" | tee --append $kud_inventory_folder/group_vars/all.yml
-    if [[ -n "${http_proxy}" ]]; then
+    if [[ -n "${http_proxy:-}" ]]; then
         echo "http_proxy: \"$http_proxy\"" | tee --append $kud_inventory_folder/group_vars/all.yml
     fi
-    if [[ -n "${https_proxy}" ]]; then
+    if [[ -n "${https_proxy:-}" ]]; then
         echo "https_proxy: \"$https_proxy\"" | tee --append $kud_inventory_folder/group_vars/all.yml
     fi
     ansible-playbook $verbose -i $kud_inventory $dest_folder/kubespray-$version/cluster.yml --become --become-user=root | sudo tee $log_folder/setup-kubernetes.log
@@ -162,7 +166,6 @@ function install_plugin {
 
     sudo mkdir -p /opt/{kubeconfig,consul/config}
     sudo cp $HOME/.kube/config /opt/kubeconfig/kud
-    _set_environment_file
     source /etc/environment
 
     pushd $kud_folder/../../../deployments
@@ -207,14 +210,15 @@ if ! sudo -n "true"; then
     exit 1
 fi
 
-if [[ -n "${KUD_DEBUG}" ]]; then
+verbose=""
+if [[ -n "${KUD_DEBUG:-}" ]]; then
     set -o xtrace
     verbose="-vvv"
 fi
 
 # Configuration values
 log_folder=/var/log/kud
-kud_folder=$(pwd)
+kud_folder=${INSTALLER_DIR}
 kud_infra_folder=$kud_folder/../../deployment_infra
 export kud_inventory_folder=$kud_folder/inventory
 kud_inventory=$kud_inventory_folder/hosts.ini
@@ -226,7 +230,6 @@ testing_enabled=${KUD_ENABLE_TESTS:-false}
 sudo mkdir -p $log_folder
 sudo mkdir -p /opt/csar
 sudo chown -R $USER /opt/csar
-echo "export CSAR_DIR=/opt/csar" | sudo tee --append /etc/environment
 
 # Install dependencies
 # Setup proxy variables
@@ -237,6 +240,7 @@ fi
 sudo apt-get update
 install_k8s
 install_addons
+_set_environment_file
 if ${KUD_PLUGIN_ENABLED:-false}; then
     install_plugin
 fi
diff --git a/kud/tests/_functions.sh b/kud/tests/_functions.sh
index 542443d6..5e6314ce 100755
--- a/kud/tests/_functions.sh
+++ b/kud/tests/_functions.sh
@@ -12,6 +12,8 @@ set -o errexit
 set -o nounset
 set -o pipefail
 
+FUNCTIONS_DIR=$(cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd)
+
 source /etc/environment
 
 function print_msg {
@@ -22,10 +24,10 @@ function print_msg {
     echo -e "${RED} $msg ---------------------------------------${NC}"
 }
 
-function _get_ovn_central_address {
-    ansible_ifconfig=$(ansible ovn-central[0] -i $test_folder/../hosting_providers/vagrant/inventory/hosts.ini -m shell -a "ifconfig eth1 |grep \"inet addr\" |awk '{print \$2}' |awk -F: '{print \$2}'")
+function get_ovn_central_address {
+    ansible_ifconfig=$(ansible ovn-central[0] -i ${FUNCTIONS_DIR}/../hosting_providers/vagrant/inventory/hosts.ini -m shell -a "ifconfig ${OVN_CENTRAL_INTERFACE} |grep \"inet addr\" |awk '{print \$2}' |awk -F: '{print \$2}'")
     if [[ $ansible_ifconfig != *CHANGED* ]]; then
-        echo "Fail to get the OVN central IP address from eth1 nic"
+        echo "Fail to get the OVN central IP address from ${OVN_CENTRAL_INTERFACE} nic"
         exit
     fi
     echo "$(echo ${ansible_ifconfig#*>>} | tr '\n' ':')6641"
@@ -39,7 +41,7 @@ function init_network {
     name=$(cat $fname | yq '.spec.name' | xargs)
     subnet=$(cat $fname  | yq '.spec.subnet' | xargs)
     gateway=$(cat $fname  | yq '.spec.gateway' | xargs)
-    ovn_central_address=$(_get_ovn_central_address)
+    ovn_central_address=$(get_ovn_central_address)
 
     router_mac=$(printf '00:00:00:%02X:%02X:%02X' $((RANDOM%256)) $((RANDOM%256)) $((RANDOM%256)))
     ovn-nbctl --may-exist --db tcp:$ovn_central_address ls-add $name -- set logical_switch $name other-config:subnet=$subnet external-ids:gateway_ip=$gateway
@@ -52,7 +54,7 @@ function cleanup_network {
     local fname=$1
 
     name=$(cat $fname | yq '.spec.name' | xargs)
-    ovn_central_address=$(_get_ovn_central_address)
+    ovn_central_address=$(get_ovn_central_address)
 
     for cmd in "ls-del $name" "lrp-del rtos-$name" "lsp-del stor-$name"; do
         ovn-nbctl --if-exist --db tcp:$ovn_central_address $cmd
@@ -111,6 +113,10 @@ function wait_deployment {
 
 # setup() - Base testing setup shared among functional tests
 function setup {
+    if ! $(kubectl version &>/dev/null); then
+        echo "This funtional test requires kubectl client"
+        exit 1
+    fi
     for deployment_name in $@; do
         recreate_deployment $deployment_name
     done
@@ -126,9 +132,4 @@ function teardown {
         destroy_deployment $deployment_name
     done
 }
-
-if ! $(kubectl version &>/dev/null); then
-    echo "This funtional test requires kubectl client"
-    exit 1
-fi
-test_folder=$(pwd)
+test_folder=${FUNCTIONS_DIR}