Docker기반 locust 부하 테스트 (feat. Docker Swarm)

[ Docker Swarm ]

1. 매니저 노드 설정

docker swarm init --advertise-addr 172.16.1.13

To add a worker to this swarm, run the following command:

docker swarm join \
--token SWMTKN-1-1la23f7y6y8joqxz27hac4j79yffyixcp15tjtlrnei14wwd1t-5tlmx4q9fm46drjzzd95g1l4q \
172.16.1.13:2377

To add a manager to this swarm, run 'docker swarm join-token manager' and follow the instructions.

 

1-1. 새로운 워커 노드를 Join 시키는 경우 Token 확인

docker swarm join-token worker

To add a worker to this swarm, run the following command:

    docker swarm join --token SWMTKN-1-2322xfd09hbdm5nkkcjkrva02bwsngplsb2sw4vgtv6t8g5x65-c5olywf8eal7k1v0i9g5piegr 172.16.1.13:2377

 

 

2. 워커 노드 Join

docker swarm join \--token SWMTKN-1-1la23f7y6y8joqxz27hac4j79yffyixcp15tjtlrnei14wwd1t-5tlmx4q9fm46drjzzd95g1l4q \172.16.1.13:2377

3. 매니저 노드에서 확인

docker node ls

---

[ Dokcer 레지스트리 구성 및 이미지 생성 ]

1. Docker 레지스트리 구성

docker image pull registry
docker container run -d -p 5000:5000 --name registry registry

2. Dockerfile 작성

FROM locustio/locust:1.4.1
ADD ./Pb /mnt/locust/Pb
ADD ./locustfile.py /mnt/locust
ADD ./requirements.txt /mnt/locust
WORKDIR /mnt/locust
RUN pip3 install -r requirements.txt
ENV PYTHONPATH "${PYTHONPATH}:/mnt/locust/Pb"
EXPOSE 8089
#CMD ["locust", "-f", "locustfile.py"] 

 

3. Docker 이미지 빌드

docker image build -t <이미지이름> .
ex) docker image build -t nss-stress .

4. 이미지 Tag 생성

docker tag <이미지이름> <레지스트리IP:5000>/nss-stress
ex) docker tag nss-stress 172.16.1.13:5000/nss-stress

5. 이미지 Push

docker push 172.16.1.13:5000/nss-stress

6. 레지스트리 확인

curl -X GET http://172.16.1.13:5000/v2/_catalog

7. 이미지 Pull

docker pull 172.16.1.13:5000/nss-stress

# https 관련 에러가 발생하는 경우
vi /etc/docker/daemon.json
아래 내용 추가
{
	"insecure-registries": ["172.16.1.13:5000"]
}

# docker 서버스 재실행
sudo service docker restart

---

[ Docker-Compose ]

1. nss-stress.yaml 파일 생성

version: '3'

services:
  master:
    image: 172.16.1.13:5000/nss-stress
    ports:
      - "8089:8089"
      - "5557:5557"
    command: -f /mnt/locust/locustfile.py --master --host=http://172.16.1.12:20004
    deploy:
      placement:
        constraints: [node.role == manager]

  worker:
    image: 172.16.1.13:5000/nss-stress
    #command: -f /mnt/locust/locustfile.py --worker --master-host=master
    command: -f /mnt/locust/locustfile.py --worker --master-host=172.16.1.13
    depends_on:
      - master

2. 스택 생성 (서비스 구동)

docker stack deploy -c nss-stress.yaml nss-stress

3. 서비스 확인

docker service ps nss-stress_worker
docker service ps nss-stress_master

4. Scale Up

docker service scale nss-stress_worker=5

---

 

[ CookBook ]

1. 서비스 확인

docker service ps nss-stress_worker
docker service ps nss-stress_master

2. 서비스 Down

docker service rm nss-stress_worker
docker service rm nss-stress_master

3. 로그 확인

docker service logs nss-stress_worker -f