Dockcer基本实战

实战：部署Redis集群

shell脚本

# 创建网卡
docker network create redis --subnet 172.38.0.0/16

# 通过脚本创建六个redis配置
for port in $(seq 1 6); \
do \
mkdir -p /mydata/redis/node-${port}/conf
touch /mydata/redis/node-${port}/conf/redis.conf
cat << EOF >/mydata/redis/node-${port}/conf/redis.conf
port 6379
bind 0.0.0.0
cluster-enabled yes 
cluster-config-file nodes.conf
cluster-node-timeout 5000
cluster-announce-ip 172.38.0.1${port}
cluster-announce-port 6379
cluster-announce-bus-port 16379
appendonly yes
EOF
done
# 运行6个节点
docker run -p 6371:6379 -p 16371:16379 --name redis-1 \
-v /mydata/redis/node-1/data:/data \
-v /mydata/redis/node-1/conf/redis.conf:/etc/redis/redis.conf \
-d --net redis --ip 172.38.0.11 redis:5.0.9-alpine3.11 redis-server /etc/redis/redis.conf

docker run -p 6372:6379 -p 16372:16379 --name redis-2 \
-v /mydata/redis/node-2/data:/data \
-v /mydata/redis/node-2/conf/redis.conf:/etc/redis/redis.conf \
-d --net redis --ip 172.38.0.12 redis:5.0.9-alpine3.11 redis-server /etc/redis/redis.conf

docker run -p 6373:6379 -p 16373:16379 --name redis-3 \
-v /mydata/redis/node-3/data:/data \
-v /mydata/redis/node-3/conf/redis.conf:/etc/redis/redis.conf \
-d --net redis --ip 172.38.0.13 redis:5.0.9-alpine3.11 redis-server /etc/redis/redis.conf

docker run -p 6374:6379 -p 16374:16379 --name redis-4 \
-v /mydata/redis/node-4/data:/data \
-v /mydata/redis/node-4/conf/redis.conf:/etc/redis/redis.conf \
-d --net redis --ip 172.38.0.14 redis:5.0.9-alpine3.11 redis-server /etc/redis/redis.conf

docker run -p 6375:6379 -p 16375:16379 --name redis-5 \
-v /mydata/redis/node-5/data:/data \
-v /mydata/redis/node-5/conf/redis.conf:/etc/redis/redis.conf \
-d --net redis --ip 172.38.0.15 redis:5.0.9-alpine3.11 redis-server /etc/redis/redis.conf

docker run -p 6376:6379 -p 16376:16379 --name redis-6 \
-v /mydata/redis/node-6/data:/data \
-v /mydata/redis/node-6/conf/redis.conf:/etc/redis/redis.conf \
-d --net redis --ip 172.38.0.16 redis:5.0.9-alpine3.11 redis-server /etc/redis/redis.conf

#随便进入一个redis集群
[root@yuan ~]# docker exec -it redis-1 /bin/sh
/data # ls -a
.       ..       appendonly.aof  nodes.conf
/data # 

# 创建集群通过命令：redis-cli --cluster create 172.38.0.11:6379 172.38.0.12:6379 172.38.0.13:6379 172.38.0.14:6379 172
.38.0.15:6379 172.38.0.16:6379 --cluster-replicas 1

/data # redis-cli --cluster create 172.38.0.11:6379 172.38.0.12:6379 172.38.0.13:6379 172.38.0.14:6379 172
.38.0.15:6379 172.38.0.16:6379 --cluster-replicas 1
>>> Performing hash slots allocation on 6 nodes...
Master[0] -> Slots 0 - 5460
Master[1] -> Slots 5461 - 10922
Master[2] -> Slots 10923 - 16383
Adding replica 172.38.0.15:6379 to 172.38.0.11:6379
Adding replica 172.38.0.16:6379 to 172.38.0.12:6379
Adding replica 172.38.0.14:6379 to 172.38.0.13:6379
M: f7c9f52f910260af33ef0e22bf2ca0063ee256ae 172.38.0.11:6379
   slots:[0-5460] (5461 slots) master
M: dae282420522b0f12f915b00e09b18fd28cf0852 172.38.0.12:6379
   slots:[5461-10922] (5462 slots) master
M: 9db2e07c5d705ecb0e6564357dc019ad8ddc55c2 172.38.0.13:6379
   slots:[10923-16383] (5461 slots) master
S: 1588fff8f94bf8594bc576faeceefbba8b186199 172.38.0.14:6379
   replicates 9db2e07c5d705ecb0e6564357dc019ad8ddc55c2
S: 94e57f9556c1b9d58f09e37f9c31e82485b58b1c 172.38.0.15:6379
   replicates f7c9f52f910260af33ef0e22bf2ca0063ee256ae
S: 5cea9d648c616337279b237f238843bde55c569b 172.38.0.16:6379
   replicates dae282420522b0f12f915b00e09b18fd28cf0852
Can I set the above configuration? (type 'yes' to accept): yes
>>> Nodes configuration updated
>>> Assign a different config epoch to each node
>>> Sending CLUSTER MEET messages to join the cluster
Waiting for the cluster to join
...
>>> Performing Cluster Check (using node 172.38.0.11:6379)
M: f7c9f52f910260af33ef0e22bf2ca0063ee256ae 172.38.0.11:6379
   slots:[0-5460] (5461 slots) master
   1 additional replica(s)
M: dae282420522b0f12f915b00e09b18fd28cf0852 172.38.0.12:6379
   slots:[5461-10922] (5462 slots) master
   1 additional replica(s)
M: 9db2e07c5d705ecb0e6564357dc019ad8ddc55c2 172.38.0.13:6379
   slots:[10923-16383] (5461 slots) master
   1 additional replica(s)
S: 1588fff8f94bf8594bc576faeceefbba8b186199 172.38.0.14:6379
   slots: (0 slots) slave
   replicates 9db2e07c5d705ecb0e6564357dc019ad8ddc55c2
S: 5cea9d648c616337279b237f238843bde55c569b 172.38.0.16:6379
   slots: (0 slots) slave
   replicates dae282420522b0f12f915b00e09b18fd28cf0852
S: 94e57f9556c1b9d58f09e37f9c31e82485b58b1c 172.38.0.15:6379
   slots: (0 slots) slave
   replicates f7c9f52f910260af33ef0e22bf2ca0063ee256ae
[OK] All nodes agree about slots configuration.
>>> Check for open slots...
>>> Check slots coverage...
[OK] All 16384 slots covered.

docker搭建redis集群完成

测试

#登录reids集群
/data # redis-cli -c
#查看集群信息    
127. 0.0.1:6379> cluster info
cluster_state:ok
cluster_slots_assigned:16384
cluster_slots_ok:16384
cluster_slots_pfail:0
cluster_slots_fail:0
cluster_known_nodes:6
cluster_size:3
cluster_current_epoch:6
cluster_my_epoch:1
cluster_stats_messages_ping_sent:645
cluster_stats_messages_pong_sent:657
cluster_stats_messages_sent:1302
cluster_stats_messages_ping_received:652
cluster_stats_messages_pong_received:645
cluster_stats_messages_meet_received:5
cluster_stats_messages_received:1302

SpringBoot微服务打包Docker镜像

1、架构springboot项目

2、打包应用

3、编写Dockerfile（idea中安装docker插件比较方便）

4、将jar包和Dockerfile文件传输到Linux服务器上

5、构建镜像yuan

6、发布运行

7、测试,输出hello Docker