public_a=$(aws ec2 describe-subnets --filters "Name=tag:Name,Values=keda-public-subnet-a" --query "Subnets[].SubnetId[]" --region ap-northeast-2 --output text)
public_b=$(aws ec2 describe-subnets --filters "Name=tag:Name,Values=keda-public-subnet-b" --query "Subnets[].SubnetId[]" --region ap-northeast-2 --output text)
private_a=$(aws ec2 describe-subnets --filters "Name=tag:Name,Values=keda-private-subnet-a" --query "Subnets[].SubnetId[]" --region ap-northeast-2 --output text)
private_b=$(aws ec2 describe-subnets --filters "Name=tag:Name,Values=keda-private-subnet-b" --query "Subnets[].SubnetId[]" --region ap-northeast-2 --output text)
sed -i "s|public_a|$public_a|g" cluster.yaml
sed -i "s|public_b|$public_b|g" cluster.yaml
sed -i "s|private_a|$private_a|g" cluster.yaml
sed -i "s|private_b|$private_b|g" cluster.yaml
eksctl create cluster -f cluster.yaml
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CLUSTER_NAME=order-cluster
AWS_ACCOUNT_ID=$(aws sts get-caller-identity --query Account --output text)
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cat << EOF > iam_policy.json
{
"Version": "2012-10-17",
"Statement": [
{
"Sid": "GetQueueAttributes",
"Effect": "Allow",
"Action": [
"sqs:GetQueueAttributes",
"sqs:ReceiveMessage",
"sqs:GetQueueUrl",
"sqs:ListQueues",
"sqs:deletemessage"
],
"Resource": "*"
}
]
}
EOF
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aws iam create-policy \
--policy-name SqsPolicy \
--policy-document file://iam_policy.json
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eksctl create iamserviceaccount \
--cluster=$CLUSTER_NAME \
--namespace=order \
--name=keda-operator \
--role-name=keda-operator-role \
--attach-policy-arn=arn:aws:iam::$AWS_ACCOUNT_ID:policy/SqsPolicy \
--approve
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helm repo add kedacore https://kedacore.github.io/charts
helm repo update
helm install keda kedacore/keda \
-n order \
--set serviceAccount.operator.create=false \
--set serviceAccount.operator.name=keda-operator
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apiVersion: apps/v1
kind: Deployment
metadata:
name: order-processor
namespace: order
labels:
app: order-processor
spec:
replicas: 1
selector:
matchLabels:
app: order-processor
template:
metadata:
labels:
app: order-processor
spec:
serviceAccountName: keda-operator
containers:
- name: order-processor
image: 362708816803.dkr.ecr.ap-northeast-2.amazonaws.com/order-app:v1
env:
- name: QUEUE_URL
value: "https://sqs.ap-northeast-2.amazonaws.com/362708816803/order-queue"
- name: REGION_NAME
value: ap-northeast-2
ports:
- containerPort: 8080
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kubectl apply -f deployment.yaml
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apiVersion: keda.sh/v1alpha1
kind: ScaledObject
metadata:
name: order-processor-scaler
namespace: order
spec:
scaleTargetRef:
name: order-processor
minReplicaCount: 1
maxReplicaCount: 10
pollingInterval: 10
cooldownPeriod: 60
advanced:
horizontalPodAutoscalerConfig:
behavior:
scaleDown:
stabilizationWindowSeconds: 30
policies:
- type: Percent
value: 100
periodSeconds: 15
triggers:
- type: aws-sqs-queue
metadata:
queueURL: https://sqs.ap-northeast-2.amazonaws.com/362708816803/order-queue
activationQueueLength: "0"
queueLength: "5"
awsRegion: ap-northeast-2
identityOwner: operator
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kubectl apply -f keda.yaml
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