Merge ~vultaire/charm-hw-health:wait-for-vendor-apt-fix into charm-hw-health:master

[Paul Goins]

[Drew Freiberger (afreiberger)]

quick refactor to limit instantiation if class is not subclass of AptVendorTool

review: Needs Fixing

[Drew Freiberger (afreiberger)]

+1

review: Approve

diff --git a/src/reactive/hw_health.py b/src/reactive/hw_health.py
index ff72e85..b902348 100644
--- a/src/reactive/hw_health.py
+++ b/src/reactive/hw_health.py
@@ -111,9 +111,10 @@ def wait_for_vendor_apt():
     for tool_class_name in unitdb.get("toolset", set()):
         # Re-instantiate the tool from the saved class name
         tool_class = getattr(tools, tool_class_name)
-        if isinstance(tool_class, tools.AptVendorTool):
-            if tool_class.is_apt_installed():
-                tool_class.install_cronjob()
+        tool = tool_class()
+        if isinstance(tool, tools.AptVendorTool):
+            if tool.is_apt_installed():
+                tool.install_cronjob()
             else:
                 status.maintenance("Waiting for vendor tools to install via apt")
                 return