[COMMON] Fix arithmetic loop bashisms

pointed out by checkbashisms.

Issue-ID: OOM-2643
Signed-off-by: Guillaume Lambert <guillaume.lambert@orange.com>
Change-Id: I85fd7d9beca75dc729de247fa67a20b801748c19

2 files changed, 4 insertions, 3 deletions

diff --git a/kubernetes/helm/plugins/deploy/deploy.sh b/kubernetes/helm/plugins/deploy/deploy.sh
index 44e8e56aa5..0d434ad877 100755
--- a/kubernetes/helm/plugins/deploy/deploy.sh
+++ b/kubernetes/helm/plugins/deploy/deploy.sh
@@ -70,7 +70,7 @@ generate_overrides() {
 resolve_deploy_flags() {
   flags=($1)
   n=${#flags[*]}
-  for (( i = 0; i < n; i++ )); do
+  i=0 ; while [ "$i" -lt "$n" ]; do
     PARAM=${flags[i]}
     if [[ $PARAM = "-f" || \
           $PARAM = "--values" || \
@@ -82,6 +82,7 @@ resolve_deploy_flags() {
     else
       DEPLOY_FLAGS="$DEPLOY_FLAGS $PARAM"
     fi
+    i=$((i+1))
   done
   echo "$DEPLOY_FLAGS"
 }
@@ -255,7 +256,7 @@ deploy() {
     else
       array=($(echo "$ALL_HELM_RELEASES" | grep "${RELEASE}-${subchart}"))
       n=${#array[*]}
-      for (( i = n-1; i >= 0; i-- )); do
+      for i in $(seq $(($n-1)) -1 0); do
         if [[ $HELM_VER = "v3."* ]]; then
           helm del "${array[i]}"
         else
diff --git a/kubernetes/helm/plugins/undeploy/undeploy.sh b/kubernetes/helm/plugins/undeploy/undeploy.sh
index e5c0c12711..1689bf1b48 100755
--- a/kubernetes/helm/plugins/undeploy/undeploy.sh
+++ b/kubernetes/helm/plugins/undeploy/undeploy.sh
@@ -23,7 +23,7 @@ undeploy() {
 
   array=($(helm ls -q --all | grep $RELEASE))
   n=${#array[*]}
-  for (( i = n-1; i >= 0; i-- ))
+  for i in $(seq $(($n-1)) -1 0)
   do
     helm del "${array[i]}" $FLAGS
   done