Add target_group attribute to single-master
In order to orchestrate task placement constraints it is useful to know
what target group the ECS container belongs to.
this allows be very specific when deciding where a task should be
deployed to.
Specifically this change allows to set the ground to deploy a GC task on
a specific master ECS container.
Change-Id: Ideba708842f191df52a11284e4e12f34f0d14dbe
diff --git a/single-master/cf-cluster.yml b/single-master/cf-cluster.yml
index 356b252..d182d71 100644
--- a/single-master/cf-cluster.yml
+++ b/single-master/cf-cluster.yml
@@ -127,6 +127,7 @@
Fn::Base64: !Sub |
#!/bin/bash -xe
echo ECS_CLUSTER=${ECSCluster} >> /etc/ecs/ecs.config
+ echo ECS_INSTANCE_ATTRIBUTES={\"target_group\":\"master\"} >> /etc/ecs/ecs.config
# Make sure latest version of the helper scripts are installed as per recommendation:
# https://github.com/awsdocs/aws-cloudformation-user-guide/blob/master/doc_source/cfn-helper-scripts-reference.md#using-the-latest-version
yum install -y aws-cfn-bootstrap aws-cli xfsprogs
diff --git a/single-master/cf-service.yml b/single-master/cf-service.yml
index 9cbba11..93d6c87 100644
--- a/single-master/cf-service.yml
+++ b/single-master/cf-service.yml
@@ -212,6 +212,9 @@
TaskRoleArn: !GetAtt ECSTaskExecutionRoleStack.Outputs.TaskExecutionRoleRef
ExecutionRoleArn: !GetAtt ECSTaskExecutionRoleStack.Outputs.TaskExecutionRoleRef
NetworkMode: bridge
+ PlacementConstraints:
+ - Expression: !Sub 'attribute:target_group == master'
+ Type: "memberOf"
ContainerDefinitions:
- Name: !Ref GerritServiceName
Essential: true
