75. Pod Autoscaler 사용하기-4/5
(작성중)
운영중인 Pod에 대해 자동으로 증가 되도록 해보자~
어플리케이션 서버를 자동 증가 시키는 것이다.
<1> 부하룰 주는 컨테이너 이미지 생성
<2> pod 생성
<3> cpu 사용룰 증가하면 pod 증가 시키기
<4> 부하 증가해서 확인하기
<1> 부하룰 주는 컨테이너 이미지 생성
mkdir 7
cd 7
1
vi index.php
<?php
$x = 0.0001;
for ($i = 0; $i <= 1000000; $i++) {
$x += sqrt($x);
}
echo "OK!";
?>
2
빌드
docker build -t hpa_example .
docker images
[root@s17e3bbc1fd7 ~]# docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
image_apache_2 latest f849bab1a9f6 4 hours ago 521MB
m6n7b87w.kr.ncr.ntruss.com/image_apache_2 1.0 f849bab1a9f6 4 hours ago 521MB
hpa_example latest f9b6f1e04c74 17 hours ago 141MB
3
레지스트리 로그온하기
docker login -u <access-key-id> <private-endpoint>.kr.ncr.ntruss.com
Password : <secret-key>
Login Succeeded
docker login -u tUe m6n7b87w.kr.private-ncr.ntruss.com
Password:
Login Succeeded
4
태그
docker image tag hpa_example <private-endpoint>/hpa_example:1.0
docker image tag hpa_example m6n7b87w.kr.private-ncr.ntruss.com/hpa_example:1.0
5
도커 이미지 올리기~
docker push <private-endpoint>/hpa_example:1.0
docker push m6n7b87w.kr.private-ncr.ntruss.com/hpa_example:1.0
6
콘솔에서 확인하기
VPC > Container Registry
hpa_example
hpa_examhpa_exampleple
<2> pod 생성
사용할 Pod
1
vi hpa-php.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: php-apache
spec:
selector:
matchLabels:
run: php-apache
replicas: 1
template:
metadata:
labels:
run: php-apache
spec:
containers:
- name: php-apache
image: <private-endpoint>/hpa_example:1.0
imagePullPolicy: Always
ports:
- containerPort: 80
resources:
limits:
cpu: 500m
requests:
cpu: 200m
imagePullSecrets:
- name: regcred
---
apiVersion: v1
kind: Service
metadata:
name: php-apache
labels:
run: php-apache
spec:
ports:
- port: 80
selector:
run: php-apache
2
kubectl create -f hpa-php.yaml
[root@s17e3bbc1fd7 7]# kubectl create -f hpa-php.yaml
error: error validating "hpa-php.yaml": error validating data: apiVersion not set; if you choose to ignore these errors, turn validation off with --validate=false
[root@s17e3bbc1fd7 7]# kubectl create -f hpa-php.yaml --validate=false
service/php-apache created
error: unable to recognize "hpa-php.yaml": no matches for kind "Deployment" in version ""
kubectl get deployments
kubectl get pods
kubectl get service
<3> cpu 사용룰 증가하면 pod 증가 시키기
kubectl autoscale deployment php-apache --cpu-percent=30 --min=1 --max=10
kubectl get hpa
<4> 부하 증가해서 확인하기
kubectl run -i --tty load-generator --rm --image=busybox --restart=Never -- /bin/sh -c "while sleep
0.01; do wget -q -O- http://php-apache; done"
감사합니다.
