Add helm list command support (#28)

* Adding list command support

README.md

@@ -12,6 +12,10 @@ Although Helm repositories are different than [OCI registries](https://helm.sh/d
 
 See [example below](https://github.com/bitovi/github-actions-deploy-eks-helm#example-3) for reference, but should be similar to using a repo.
 
+### Note on charts list command
+
+You can use the name as a way to filter results, or just leave it blank to get all the charts available. 
+
 ### Inputs
 
 Following inputs can be used as `step.with` keys
@@ -23,7 +27,7 @@ Following inputs can be used as `step.with` keys
 | `aws-region`               | String | AWS region to use. This must match the region your desired cluster lies in.                                                                                 |
 | `cluster-name`             | String | The name of the desired cluster.                                                                                                                            |
 | `cluster-role-arn`         | String | If you wish to assume an admin role, provide the role arn here to login as.                                                                                 |
-| `action`                   | String | Determines if we `install` or `uninstall` the chart. (Optional, Defaults to `install`)                                                                      |
+| `action`                   | String | Determines if we `install`/`uninstall` the chart, or `list`. (Optional, Defaults to `install`)                                                                      |
 | `config-files`             | String | Comma separated list of helm values files.                                                                                                                  |
 | `namespace`                | String | Kubernetes namespace to use.  Will create if it does not exist                                                                                              |
 | `values`                   | String | Comma separated list of value set for helms. e.x:`key1=value1,key2=value2`                                                                                  |
@@ -48,7 +52,7 @@ Following inputs can be used as `step.with` keys
 
 ```yaml
     - name: Deploy Helm
-      uses: bitovi/[email protected].2
+      uses: bitovi/[email protected].3
       with:
         aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
         aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
@@ -64,7 +68,7 @@ Following inputs can be used as `step.with` keys
 ## Example 2 - Custom Chart Repo
 ```yaml
     - name: Deploy Helm
-      uses: bitovi/[email protected].2
+      uses: bitovi/[email protected].3
       with:
         aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
         aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
@@ -83,7 +87,7 @@ Following inputs can be used as `step.with` keys
 ## Example 3 - OCI Chart Repo
 ```yaml
     - name: Deploy Helm
-      uses: bitovi/[email protected].2
+      uses: bitovi/[email protected].3
       with:
         aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
         aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
@@ -106,7 +110,7 @@ Following inputs can be used as `step.with` keys
         aws-region: ${{ env.aws-region }}
 
     - name: Install Helm Chart
-      uses: bitovi/[email protected].2
+      uses: bitovi/[email protected].3
       with:
         aws-region: ${{ env.aws-region }}
         cluster-name: eks-cluster-${{ env.environment }}
@@ -117,7 +121,7 @@ Following inputs can be used as `step.with` keys
 
 ```yaml
     - name: Deploy Helm
-      uses: bitovi/[email protected].2
+      uses: bitovi/[email protected].3
       with:
         aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
         aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
@@ -128,6 +132,20 @@ Following inputs can be used as `step.with` keys
         name: release_name
 ```
 
+## Example List
+
+```yaml
+    - name: Deploy Helm
+      uses: bitovi/[email protected]
+      with:
+        aws-access-key-id: ${{ secrets.AWS_ACCESS_KEY_ID }}
+        aws-secret-access-key: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
+        aws-region: us-west-2
+        action: list
+        namespace: dev
+        name: release_name
+```
+
 ## Contributing
 We would love for you to contribute to [`bitovi/github-actions-deploy-eks-helm`](https://github.com/bitovi/github-actions-deploy-eks-helm).   [Issues](https://github.com/bitovi/github-actions-deploy-eks-helm/issues) and [Pull Requests](https://github.com/bitovi/github-actions-deploy-eks-helm/pulls) are welcome!
 

deploy.sh

@@ -157,16 +157,25 @@ if [ "${HELM_ACTION}" == "install" ]; then
 
 elif [ "${HELM_ACTION}" == "uninstall" ]; then
     HELM_COMMAND="helm uninstall --timeout ${TIMEOUT}"
-
+elif [ "${HELM_ACTION}" == "list" ]; then
+    HELM_COMMAND="helm list"
 else
-    echo "::error:: HELM_ACTION specified doesn't exist in this context. Please use 'install' or 'uninstall'"
+    echo "::error:: HELM_ACTION specified doesn't exist in this context. Please use 'install','uninstall' or 'list'"
     exit 2
 fi
 
 if [ -n "$DEPLOY_NAMESPACE" ]; then
     HELM_COMMAND="${HELM_COMMAND} -n ${DEPLOY_NAMESPACE}"
 fi
 
+if [ "${HELM_ACTION}" == "list" ]; then
+     if [ -n "$DEPLOY_NAME" ]; then
+         HELM_COMMAND="${HELM_COMMAND} --filter"
+     else
+         HELM_COMMAND="${HELM_COMMAND} --all"
+     fi
+fi
+
 # Execute Commands
 HELM_COMMAND="${HELM_COMMAND} ${DEPLOY_NAME}"