Fix issue with container network mode causing unnecessary redeployment

CHANGELOG.md

@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Unreleased
 
+- Fix issue with container network mode causing unnecessary redeployment when using `container:<name>` format
+  - Added network mode normalization to handle container IDs consistently
+  - Prevents container recreation when only the container ID format changes
+
 ## 11.8.0 - *2024-12-11*
 
 - Add volume_prune resource

libraries/helpers_network.rb

@@ -20,6 +20,22 @@ def ip_address_from_container_networks(container)
           container.info['NetworkSettings']['Networks'].values[0]['IPAMConfig']['IPv4Address']
         end
       end
+
+      def normalize_container_network_mode(mode)
+        return mode unless mode.is_a?(String) && mode.start_with?('container:')
+
+        # Extract container name/id from network mode
+        container_ref = mode.split(':', 2)[1]
+        begin
+          # Try to get the container by name or ID
+          container = Docker::Container.get(container_ref, {}, connection)
+          # Return normalized form with full container ID
+          "container:#{container.id}"
+        rescue Docker::Error::NotFoundError, Docker::Error::TimeoutError
+          # If container not found, return original value
+          mode
+        end
+      end
     end
   end
 end

resources/container.rb

@@ -403,6 +403,9 @@ def to_snake_case(name)
     when 'NanoCpus'
       property_name = 'cpus'
       value = (value / (10**9)).to_i
+    when 'NetworkMode'
+      property_name = 'network_mode'
+      value = normalize_container_network_mode(value)
     else
       property_name = to_snake_case(key)
     end
@@ -501,7 +504,7 @@ def load_container_labels
           'MemorySwappiness' => new_resource.memory_swappiness,
           'MemoryReservation' => new_resource.memory_reservation,
           'NanoCpus'        => new_resource.cpus,
-          'NetworkMode'     => new_resource.network_mode,
+          'NetworkMode'     => normalize_container_network_mode(new_resource.network_mode),
           'OomKillDisable'  => new_resource.oom_kill_disable,
           'OomScoreAdj'     => new_resource.oom_score_adj,
           'Privileged'      => new_resource.privileged,
@@ -743,4 +746,22 @@ def ulimits_to_hash
   def read_env_file
     new_resource.env_file.map { |f| ::File.readlines(f).map(&:strip) }.flatten
   end
+
+  def normalize_container_network_mode(value)
+    if value.is_a?(String) && value.start_with?('container:')
+      # Use the network helper method for container network mode
+      DockerCookbook::DockerHelpers::Network.normalize_container_network_mode(value)
+    else
+      case value
+      when 'host'
+        'host'
+      when 'none'
+        'none'
+      when 'default'
+        'bridge'
+      else
+        value
+      end
+    end
+  end
 end