Generate multiple set values commands (#59)

* Generate separate set values commands

* Add value sanity checks and usage example

Author: oleksiimorozenko

README.md

@@ -192,6 +192,33 @@ The following inputs are available as `step.with` keys:
         ... (put your other arguments here)
 ```
 
+## Example 8 - Use a different role in the Action than the role the cluster was built with
+
+**action.yaml**
+```yaml
+    - name: Install Karpenter
+      uses: bitovi/github-actions-deploy-eks-helm
+      with:
+        aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
+        aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
+        aws-region: ${{ vars.AWS_REGION }}
+        cluster-name: ${{ vars.CLUSTER_NAME }}
+        cluster-role-arn: ${{ secrets.AWS_ROLE_ARN }}
+        chart-repository: oci://public.ecr.aws
+        chart-path: karpenter/karpenter
+        helm-wait: true
+        namespace: karpenter
+        name: karpenter
+        values: |
+          settings.clusterName=${{ vars.CLUSTER_NAME }},
+          settings.interruptionQueue=${{ vars.CLUSTER_NAME }}-karpenter,
+          controller.resources.requests.cpu=1,
+          controller.resources.requests.memory=1Gi,
+          controller.resources.limits.cpu=1,
+          controller.resources.limits.memory=1Gi
+        version: 1.0.6
+```
+
 **terraform.tf**
 ```yaml
     ... (surrounding code)

deploy.sh

@@ -148,7 +148,20 @@ if [ "${HELM_ACTION}" == "install" ]; then
     done
 
     if [ -n "$DEPLOY_VALUES" ]; then
-        HELM_COMMAND="${HELM_COMMAND} --set ${DEPLOY_VALUES}"
+        for value in ${DEPLOY_VALUES//,/ }
+        do
+            if [[ -z "$value" ]]; then
+                echo "Warning: Empty value detected, skipping."
+                continue
+            elif [[ "$value" != *"="* ]]; then
+                echo "Warning: Value '$value' does not contain an '=' sign, skipping."
+                continue
+            elif [[ "$value" =~ [[:space:]] ]]; then
+                echo "Warning: Value '$value' contains whitespace, skipping."
+                continue
+            fi
+            HELM_COMMAND="${HELM_COMMAND} --set ${value}"
+        done
     fi
 
     if [ -n "$VERSION" ]; then