ADD: EFS Improvements

-EFS retained upon stack deletion to preserve saves.
-EFS lifecycle management enabled to lower cost when not actively utilized.
-Migrate to CloudFormation's native EFS handler for ECS tasks.  Removes the ASG dependency on the EFS mount points for increased parallelization during build-out.  However, migrating save files is slightly complicated.

1 files changed, 12 insertions, 11 deletions

diff --git a/cf.yml b/cf.yml
index 5517bb9..7b2bd32 100644
--- a/cf.yml
+++ b/cf.yml
@@ -196,7 +196,11 @@ Resources:
 

   Efs:

     Type: AWS::EFS::FileSystem

-    Properties: {}

+    DeletionPolicy: Retain

+    Properties:

+      LifecyclePolicies:

+      - TransitionToIA: AFTER_7_DAYS

+      - TransitionToPrimaryStorageClass: AFTER_1_ACCESS

 

   MountA:

     Type: AWS::EFS::MountTarget

@@ -271,17 +275,10 @@ Resources:
       UserData:

         Fn::Base64: !Sub |

           #!/bin/bash -xe

-          yum install -y amazon-efs-utils

-          mkdir /opt/factorio

-          mount -t efs ${Efs}:/ /opt/factorio

-          chown 845:845 /opt/factorio

           echo ECS_CLUSTER=${EcsCluster} >> /etc/ecs/ecs.config          

 

   AutoScalingGroup:

     Type: AWS::AutoScaling::AutoScalingGroup

-    DependsOn:

-    - MountA

-    - MountB

     Properties:

       AutoScalingGroupName: !Sub "${AWS::StackName}-asg"

       DesiredCapacity: !FindInMap [ ServerState, !Ref ServerState, DesiredCapacity ]

@@ -339,11 +336,15 @@ Resources:
 

   EcsTask:

     Type: AWS::ECS::TaskDefinition

+    DependsOn:

+    - MountA

+    - MountB

     Properties: 

       Volumes:

-      - Host:

-          SourcePath: /opt/factorio

-        Name: factorio

+      - Name: factorio

+        EFSVolumeConfiguration:

+          FilesystemId: !Ref Efs

+          TransitEncryption: ENABLED

       ContainerDefinitions:

         - Name: factorio

           MemoryReservation: 1024