[COMMON] Fix "local var=XX" bashisms

Variable attribute 'local' is not POSIX but is LSB supported.
It is available in other shells such as ash or dash.
And in ksh, local is the default scope of functions vaiables.

Though, the syntax "local var=XX" is only supported and found in bash.
Sadly, this is not detected by checkbashims.

- fix "local var=XX" bashisms
- add a manual command in tox.ini to detect them in the CI

https://wiki.ubuntu.com/DashAsBinSh#local
https://wiki.ubuntu.com/DashAsBinSh#declare_or_typeset
https://stackoverflow.com/questions/12000949/scope-of-variables-in-ksh

Issue-ID: OOM-2643
Signed-off-by: guillaume.lambert <guillaume.lambert@orange.com>
Change-Id: Iff26e50cd352eeb760d923a4740a6f92184fe0f2

1 files changed, 14 insertions, 7 deletions

diff --git a/kubernetes/contrib/dns-server-for-vhost-ingress-testing/deploy_dns.sh b/kubernetes/contrib/dns-server-for-vhost-ingress-testing/deploy_dns.sh
index 3c66feeb46..294ae0a55e 100755
--- a/kubernetes/contrib/dns-server-for-vhost-ingress-testing/deploy_dns.sh
+++ b/kubernetes/contrib/dns-server-for-vhost-ingress-testing/deploy_dns.sh
@@ -49,10 +49,13 @@ Extra DNS server already deployed:
 
 list_node_with_external_addrs()
 {
-    local WORKER_NODES=$(kubectl get no -l node-role.kubernetes.io/worker=true -o jsonpath='{.items..metadata.name}')
+    local WORKER_NODES
+    WORKER_NODES=$(kubectl get no -l node-role.kubernetes.io/worker=true -o jsonpath='{.items..metadata.name}')
     for worker in $WORKER_NODES; do
-        local external_ip=$(kubectl get no $worker  -o jsonpath='{.metadata.annotations.rke\.cattle\.io/external-ip }')
-        local internal_ip=$(kubectl get no $worker  -o jsonpath='{.metadata.annotations.rke\.cattle\.io/internal-ip }')
+        local external_ip
+        external_ip=$(kubectl get no $worker  -o jsonpath='{.metadata.annotations.rke\.cattle\.io/external-ip }')
+        local internal_ip
+        internal_ip=$(kubectl get no $worker  -o jsonpath='{.metadata.annotations.rke\.cattle\.io/internal-ip }')
         if [ $internal_ip != $external_ip ]; then
             echo $external_ip
             break
@@ -61,7 +64,8 @@ list_node_with_external_addrs()
 }
 
 ingress_controller_ip() {
-    local metal_ns=$(kubectl get ns --no-headers --output=custom-columns=NAME:metadata.name |grep metallb-system)
+    local metal_ns
+    metal_ns=$(kubectl get ns --no-headers --output=custom-columns=NAME:metadata.name |grep metallb-system)
     if [ -z $metal_ns ]; then
         echo $CLUSTER_IP
     else
@@ -70,13 +74,16 @@ ingress_controller_ip() {
 }
 
 deploy() {
-    local ingress_ip=$(ingress_controller_ip)
+    local ingress_ip
+    ingress_ip=$(ingress_controller_ip)
     initdir = $(pwd)
     cd $SPATH/bind9dns
     if [ $# -eq 0 ]; then
-        local cl_domain="simpledemo.onap.org"
+        local cl_domain
+        cl_domain="simpledemo.onap.org"
     else
-        local cl_domain=$1
+        local cl_domain
+        cl_domain=$1
         shift
     fi
     if [ $# -ne 0 ]; then