docker_mixin.rb in floe-0.12.0

- old
+ new

@@ -22,9 +22,12 @@
         # and https://github.com/kubernetes/kubernetes/blob/952a9cb0/staging/src/k8s.io/apimachinery/pkg/util/validation/validation.go#L178-L184
         #
         # This does not follow the leading and trailing character restriction because we will embed it
         # below with a prefix and suffix that already conform to the RFC.
         normalized_name = name.downcase.gsub(/[^a-z0-9-]/, "-")[0, MAX_CONTAINER_NAME_SIZE]
+        # Ensure that the normalized_name doesn't end in any invalid characters after we
+        # limited the length to the MAX_CONTAINER_NAME_SIZE.
+        normalized_name.gsub!(/[^a-z0-9]+$/, "")
 
         "floe-#{normalized_name}-#{SecureRandom.hex(4)}"
       end
     end
   end