minio笔记02--基于swarm搭建minio集群
- 1 介绍
- 2 初始化swarm集群
- 3 搭建minio集群
- 4 说明
1 介绍
minio 有多种搭建方式,minio笔记01–部署与测试minio已经介绍了单机上搭建测试集群和常见使用方式,本文将进一步介绍如何基于swarm 搭建多机集群。
2 初始化swarm集群
-
初始化 master 节点
master节点执行init,初始化集群
# docker swarm init
-
添加 worker节点:
在work节点执行join,加入集群
在每个work上依次执行该命令:
# docker swarm join --token SWMTKN-1-61sdyxdby3ofx0s3p4x44hmyahfrcvijcxf7v2fgbhf3yd007c-5d5lt1vhkr28aw4koith8ya8j 192.168.2.131:237
- 集群节点初始状态:
- 新建测试服务
# docker service create --name nginx --network host nginx:1.19.6
扩容到9个副本:
# docker service scale nginx=4 -d
默认情况下master节点也是worker,因此也会部署服务;但是可以通过drain是master只充当管理节点,不部署服务:
# docker node update --availability drain kmaster
kmaster
# docker node ls # 此时状态为Drain,master节点上的nginx飘到其它节点上了。
ID HOSTNAME STATUS AVAILABILITY MANAGER STATUS ENGINE VERSION
x6krw762e277z3cg9jcty17rh * kmaster Ready Drain Leader 20.10.1
cv2qe94em477zz5kx92a9qt1m knode01 Ready Active 20.10.1
测试完毕,删除服务,nginx服务
# docker service rm nginx
笔者此处刚刚好4个节点,因此需要设置master节点可用;线上环境可以专门用3个低配机器当作master,不部署其它服务。
# docker node update --availability active kmaster
3 搭建minio集群
- 创建secret_key 和 access_ke
echo "minio" | docker secret create access_key -
echo "minio123" |
- 对节点打标签,以将minio实例调度到不同节点上
docker node update --label-add minio1=true x6krw762e277z3cg9jcty17rh
docker node update --label-add minio2=true cv2qe94em477zz5kx92a9qt1m
docker node update --label-add minio3=true utp02b0firo331snlz3jvgexy
docker node update --label-add minio4=true jl0wocdk31hik8xlgkovaoz44
注意:打标签必须使用node的ID来标识节点,否则会失败
- 依次在4个节点 创建/home/minio/data 目录
# adduser --home /home/minio minio
# su - minio
$ mkdir
- 下载并修改配置文件
# wget https://raw.githubusercontent.com/minio/minio/master/docs/orchestration/docker-swarm/docker-compose-secrets.yaml
# vim docker-compose-secrets.yaml
version: '3.7'
services:
minio1:
image: minio/minio:RELEASE.2021-01-16T02-19-44Z
hostname: minio1
volumes:
- /home/minio/data:/export
ports:
- "9001:9000"
networks:
- minio_distributed
deploy:
restart_policy:
delay: 10s
max_attempts: 10
window: 60s
placement:
constraints:
- node.labels.minio1==true
command: server http://minio{1...4}/export
secrets:
- secret_key
- access_key
healthcheck:
test: ["CMD", "curl", "-f", "http://localhost:9000/minio/health/live"]
interval: 30s
timeout: 20s
retries: 3
minio2:
image: minio/minio:RELEASE.2021-01-16T02-19-44Z
hostname: minio2
volumes:
- /home/minio/data:/export
ports:
- "9002:9000"
networks:
- minio_distributed
deploy:
restart_policy:
delay: 10s
max_attempts: 10
window: 60s
placement:
constraints:
- node.labels.minio2==true
command: server http://minio{1...4}/export
secrets:
- secret_key
- access_key
healthcheck:
test: ["CMD", "curl", "-f", "http://localhost:9000/minio/health/live"]
interval: 30s
timeout: 20s
retries: 3
minio3:
image: minio/minio:RELEASE.2021-01-16T02-19-44Z
hostname: minio3
volumes:
- /home/minio/data:/export
ports:
- "9003:9000"
networks:
- minio_distributed
deploy:
restart_policy:
delay: 10s
max_attempts: 10
window: 60s
placement:
constraints:
- node.labels.minio3==true
command: server http://minio{1...4}/export
secrets:
- secret_key
- access_key
healthcheck:
test: ["CMD", "curl", "-f", "http://localhost:9000/minio/health/live"]
interval: 30s
timeout: 20s
retries: 3
minio4:
image: minio/minio:RELEASE.2021-01-16T02-19-44Z
hostname: minio4
volumes:
- /home/minio/data:/export
ports:
- "9004:9000"
networks:
- minio_distributed
deploy:
restart_policy:
delay: 10s
max_attempts: 10
window: 60s
placement:
constraints:
- node.labels.minio4==true
command: server http://minio{1...4}/export
secrets:
- secret_key
- access_key
healthcheck:
test: ["CMD", "curl", "-f", "http://localhost:9000/minio/health/live"]
interval: 30s
timeout: 20s
retries: 3
networks:
minio_distributed:
driver: overlay
secrets:
secret_key:
external: true
access_key:
external: true
- 启动集群
# docker stack deploy --compose-file=docker-compose-secrets.yaml minio_stack
Creating network minio_stack_minio_distributed
Creating service minio_stack_minio2
Creating service minio_stack_minio3
Creating service minio_stack_minio4
Creating service
- 服务创建成功后如下:
- 在master节点添加集群信息
# mc alias set minio http://localhost:9001 minio minio123
Added `minio` successfully
# mc mb test01
Bucket created successfully `test01`.
# mc ls minio
[2021-01-22 17:00:33 CST]
- 删除集群
在master上删除minio_stack
# docker stack rm minio_stack
在每个work节点执行清除卷的功能
# docker volume prune
- minio 集群信息:
-
访问minio集群:
http://ip:9001/minio/
4 说明
-
软件环境
笔者系统为ubuntu18.04
docker 20.10.1
minio镜像:minio/minio:RELEASE.2021-01-16T02-19-44Z