Merge pull request #33 from joosangkim/improve/add-atomic-option [sem…

…ver:patch]

Improve suggestion - add atomic option for upgrading chart

src/commands/upgrade-helm-chart.yml

@@ -134,6 +134,12 @@ parameters:
       The string is a decimal with unit suffix, such as “20m”, “1.25h”, “5s”
     type: string
     default: "30m"
+  atomic:
+    description: |
+      if set, upgrade process rolls back changes made in case of failed upgrade.
+      The --wait flag will be set automatically if --atomic is used
+    type: boolean
+    default: false
 steps:
   - install-helm-client:
       version: << parameters.helm-version >>
@@ -148,6 +154,7 @@ steps:
       name: Upgrade or install chart
       command: |
         TIMEOUT="<< parameters.timeout >>"
+        ATOMIC="<< parameters.atomic >>"
         WAIT="<< parameters.wait >>"
         NO_HOOKS="<< parameters.no-hooks >>"
         RECREATE_PODS="<< parameters.recreate-pods >>"
@@ -178,6 +185,9 @@ steps:
         if [ "${RECREATE_PODS}"  == "true" ]; then
           set -- "$@" --recreate-pods
         fi
+        if [ "${ATOMIC}" == "true" ]; then
+          set -- "$@" --atomic
+        fi
         if [ "${WAIT}" == "true" ]; then
           set -- "$@" --wait
         fi