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fix(ecs): grant drain-hook policy container-instance permissions #3196

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fix(ecs): grant drain-hook policy container-instance permissions #3196

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16 changes: 13 additions & 3 deletions packages/@aws-cdk/aws-ecs/lib/drain-hook/instance-drain-hook.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -97,11 +97,21 @@ export class InstanceDrainHook extends cdk.Construct {
actions: [
'ecs:ListContainerInstances',
'ecs:SubmitContainerStateChange',
'ecs:SubmitTaskStateChange',
'ecs:UpdateContainerInstancesState',
'ecs:ListTasks'
'ecs:SubmitTaskStateChange'
],
resources: [props.cluster.clusterArn]
}));

// Restrict to the container-instance operations to the ECS Cluster
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"Restrict to the container-instance operations to the ECS cluster"

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Addressed

fn.addToRolePolicy(new iam.PolicyStatement({
actions: [
'ecs:UpdateContainerInstancesState',
'ecs:ListTasks'
],
conditions: {
ArnEquals: {'ecs:cluster': props.cluster.clusterArn}
},
resources: ['*']
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Just making sure: does it make sense to use "*" here and not a specific resource?

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It does because otherwise, the resource would need to be the container instance id, but it doesn't make sense in the case of instances that are scaled up or down, as instance ids can change frequently.

As per https://docs.aws.amazon.com/AmazonECS/latest/developerguide/ecs-supported-iam-actions-resources.html, we used the ecs:cluster condition key instead.

}));
}
}
22 changes: 19 additions & 3 deletions packages/@aws-cdk/aws-ecs/test/ec2/integ.lb-awsvpc-nw.expected.json
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Original file line number Diff line number Diff line change
Expand Up @@ -605,9 +605,7 @@
"Action": [
"ecs:ListContainerInstances",
"ecs:SubmitContainerStateChange",
"ecs:SubmitTaskStateChange",
"ecs:UpdateContainerInstancesState",
"ecs:ListTasks"
"ecs:SubmitTaskStateChange"
],
"Effect": "Allow",
"Resource": {
Expand All @@ -616,6 +614,24 @@
"Arn"
]
}
},
{
"Action": [
"ecs:UpdateContainerInstancesState",
"ecs:ListTasks"
],
"Condition": {
"ArnEquals": {
"ecs:cluster": {
"Fn::GetAtt": [
"EcsCluster97242B84",
"Arn"
]
}
}
},
"Effect": "Allow",
"Resource": "*"
}
],
"Version": "2012-10-17"
Expand Down
22 changes: 19 additions & 3 deletions packages/@aws-cdk/aws-ecs/test/ec2/integ.lb-bridge-nw.expected.json
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Original file line number Diff line number Diff line change
Expand Up @@ -626,9 +626,7 @@
"Action": [
"ecs:ListContainerInstances",
"ecs:SubmitContainerStateChange",
"ecs:SubmitTaskStateChange",
"ecs:UpdateContainerInstancesState",
"ecs:ListTasks"
"ecs:SubmitTaskStateChange"
],
"Effect": "Allow",
"Resource": {
Expand All @@ -637,6 +635,24 @@
"Arn"
]
}
},
{
"Action": [
"ecs:UpdateContainerInstancesState",
"ecs:ListTasks"
],
"Condition": {
"ArnEquals": {
"ecs:cluster": {
"Fn::GetAtt": [
"EcsCluster97242B84",
"Arn"
]
}
}
},
"Effect": "Allow",
"Resource": "*"
}
],
"Version": "2012-10-17"
Expand Down
22 changes: 19 additions & 3 deletions packages/@aws-cdk/aws-ecs/test/ec2/integ.sd-awsvpc-nw.expected.json
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Original file line number Diff line number Diff line change
Expand Up @@ -605,9 +605,7 @@
"Action": [
"ecs:ListContainerInstances",
"ecs:SubmitContainerStateChange",
"ecs:SubmitTaskStateChange",
"ecs:UpdateContainerInstancesState",
"ecs:ListTasks"
"ecs:SubmitTaskStateChange"
],
"Effect": "Allow",
"Resource": {
Expand All @@ -616,6 +614,24 @@
"Arn"
]
}
},
{
"Action": [
"ecs:UpdateContainerInstancesState",
"ecs:ListTasks"
],
"Condition": {
"ArnEquals": {
"ecs:cluster": {
"Fn::GetAtt": [
"EcsCluster97242B84",
"Arn"
]
}
}
},
"Effect": "Allow",
"Resource": "*"
}
],
"Version": "2012-10-17"
Expand Down
22 changes: 19 additions & 3 deletions packages/@aws-cdk/aws-ecs/test/ec2/integ.sd-bridge-nw.expected.json
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Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -605,9 +605,7 @@
"Action": [
"ecs:ListContainerInstances",
"ecs:SubmitContainerStateChange",
"ecs:SubmitTaskStateChange",
"ecs:UpdateContainerInstancesState",
"ecs:ListTasks"
"ecs:SubmitTaskStateChange"
],
"Effect": "Allow",
"Resource": {
Expand All @@ -616,6 +614,24 @@
"Arn"
]
}
},
{
"Action": [
"ecs:UpdateContainerInstancesState",
"ecs:ListTasks"
],
"Condition": {
"ArnEquals": {
"ecs:cluster": {
"Fn::GetAtt": [
"EcsCluster97242B84",
"Arn"
]
}
}
},
"Effect": "Allow",
"Resource": "*"
}
],
"Version": "2012-10-17"
Expand Down
46 changes: 31 additions & 15 deletions packages/@aws-cdk/aws-events-targets/test/ecs/integ.event-ec2-task.lit.expected.json
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Original file line number Diff line number Diff line change
Expand Up @@ -446,21 +446,37 @@
"Resource": "*"
},
{
"Action": [
"ecs:ListContainerInstances",
"ecs:SubmitContainerStateChange",
"ecs:SubmitTaskStateChange",
"ecs:UpdateContainerInstancesState",
"ecs:ListTasks"
],
"Effect": "Allow",
"Resource": {
"Fn::GetAtt": [
"EcsCluster97242B84",
"Arn"
]
"Action": [
"ecs:ListContainerInstances",
"ecs:SubmitContainerStateChange",
"ecs:SubmitTaskStateChange"
],
"Effect": "Allow",
"Resource": {
"Fn::GetAtt": [
"EcsCluster97242B84",
"Arn"
]
}
},
{
"Action": [
"ecs:UpdateContainerInstancesState",
"ecs:ListTasks"
],
"Condition": {
"ArnEquals": {
"ecs:cluster": {
"Fn::GetAtt": [
"EcsCluster97242B84",
"Arn"
]
}
}
},
"Effect": "Allow",
"Resource": "*"
}
}
],
"Version": "2012-10-17"
},
Expand Down Expand Up @@ -1197,4 +1213,4 @@
"Description": "Artifact hash for asset \"aws-ecs-integ-ecs/AdoptEcrRepositorydbc60defc59544bcaa5c28c95d68f62c/Code\""
}
}
}
}
24 changes: 20 additions & 4 deletions packages/@aws-cdk/aws-stepfunctions-tasks/test/integ.ec2-task.expected.json
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Original file line number Diff line number Diff line change
Expand Up @@ -249,9 +249,7 @@
"Action": [
"ecs:ListContainerInstances",
"ecs:SubmitContainerStateChange",
"ecs:SubmitTaskStateChange",
"ecs:UpdateContainerInstancesState",
"ecs:ListTasks"
"ecs:SubmitTaskStateChange"
],
"Effect": "Allow",
"Resource": {
Expand All @@ -260,6 +258,24 @@
"Arn"
]
}
},
{
"Action": [
"ecs:UpdateContainerInstancesState",
"ecs:ListTasks"
],
"Condition": {
"ArnEquals": {
"ecs:cluster": {
"Fn::GetAtt": [
"FargateCluster7CCD5F93",
"Arn"
]
}
}
},
"Effect": "Allow",
"Resource": "*"
}
],
"Version": "2012-10-17"
Expand Down Expand Up @@ -978,4 +994,4 @@
"Description": "Artifact hash for asset \"aws-ecs-integ2/AdoptEcrRepositorydbc60defc59544bcaa5c28c95d68f62c/Code\""
}
}
}
}