Fix iop_frontend trying to pull image with ensure absent

lib/puppet/provider/iop_frontend/podman.rb

@@ -12,59 +12,56 @@
   commands runtime: 'podman'
 
   def exists?
-    desired_checksum = get_image_content_checksum
-
-    unless File.directory?(resource[:destination])
-      Puppet.debug("Destination #{resource[:destination]} not found. Resource does not exist.")
-      return false
-    end
-
-    current_checksum = get_deployed_checksum
-
-    in_sync = current_checksum == desired_checksum
-    Puppet.debug("Current checksum: #{current_checksum}, Desired checksum: #{desired_checksum}. In sync: #{in_sync}")
+    File.exist?(metadata_file)
+  end
 
-    cleanup(nil, @staged_content_path) if in_sync
+  def image
+    get_deployed_checksum.to_s
+  end
 
-    in_sync
+  def image=(value)
+    create
   end
 
   def create
     Puppet.info("Deploying new frontend content to '#{resource[:destination]}'")
 
     destroy if File.directory?(resource[:destination])
 
-    Puppet.debug("Copying staged content from '#{@staged_content_path}' to '#{resource[:destination]}'")
+    staged_content_path, new_content_checksum = stage_content
+    Puppet.debug("Copying staged content from '#{staged_content_path}' to '#{resource[:destination]}'")
     Dir.mkdir(resource[:destination], 0755)
-    FileUtils.cp_r(Dir.glob(File.join(@staged_content_path, '*')), resource[:destination])
+    FileUtils.cp_r(Dir.glob(File.join(staged_content_path, '*')), resource[:destination])
 
     restore_selinux_context(resource[:destination])
 
-    metadata_file = File.join(resource[:destination], '.iop_frontend_checksum')
-    Puppet.debug("Writing new checksum #{@new_content_checksum} to #{metadata_file}")
-    File.write(metadata_file, @new_content_checksum)
-
-    @staged_content_path = nil
-    @new_content_checksum = nil
+    Puppet.debug("Writing new checksum #{new_content_checksum} to #{metadata_file}")
+    File.write(metadata_file, new_content_checksum)
   end
 
   def destroy
     Puppet.info("Removing frontend at '#{resource[:destination]}'")
     FileUtils.rm_rf(resource[:destination])
   end
 
+  def content_checksum
+    path, checksum = stage_content
+    checksum
+  end
+
   private
 
+  def metadata_file
+    File.join(resource[:destination], '.iop_frontend_checksum')
+  end
+
   def get_deployed_checksum
-    metadata_file = File.join(resource[:destination], '.iop_frontend_checksum')
     return nil unless File.exist?(metadata_file)
 
     File.read(metadata_file).strip
   end
 
-  def get_image_content_checksum
-    return @new_content_checksum if @new_content_checksum
-
+  def stage_content
     temp_container_name = "iop-frontend-checker-#{resource.title.gsub(/[^0-9a-zA-Z]/, '-')}"
     staging_dir = Dir.mktmpdir('iop_frontend_check')
 
@@ -73,10 +70,10 @@ def get_image_content_checksum
       source_in_container = "#{temp_container_name}:#{resource[:source_path]}/."
       execute(['podman', 'cp', source_in_container, staging_dir])
 
-      @new_content_checksum = calculate_checksum_for_path(staging_dir)
-      @staged_content_path = staging_dir
+      new_content_checksum = calculate_checksum_for_path(staging_dir)
+      staged_content_path = staging_dir
 
-      return @new_content_checksum
+      return staged_content_path, new_content_checksum
     rescue Puppet::ExecutionFailure => e
       Puppet.err("Failed to get content checksum from image '#{resource[:image]}': #{e.message}")
       cleanup(temp_container_name, staging_dir)

lib/puppet/type/iop_frontend.rb

@@ -13,14 +13,26 @@
     end
   end
 
-  newparam(:image) do
+  newproperty(:image) do
     desc 'The full name of the container image to pull, including the tag (e.g., "registry.example.com/my-app:latest").'
 
     validate do |value|
       unless value.is_a?(String)
         raise ArgumentError, "Image must be a string, not '#{value.class}'"
       end
     end
+
+    def content_checksum
+      provider.content_checksum.to_s
+    end
+
+    def should_to_s(newvalue)
+      self.class.format_value_for_display(content_checksum)
+    end
+
+    def insync?(is)
+      is.to_s == content_checksum
+    end
   end
 
   newparam(:source_path) do