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105.【Docker】（十）

2023-09-23 68
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云数据库 Tair（兼容Redis），内存型 2GB
推荐场景：
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Redis 开源版，标准版 2GB
推荐场景：
搭建游戏排行榜
简介： 105.【Docker】

5.部署Redis集群

上面是主力机，下面是备用机

如果上面挂了，下面的就要去替代上面的。

[root@Jsxs ~]# docker ps
CONTAINER ID   IMAGE                 COMMAND        CREATED        STATUS        PORTS                                       NAMES
4aba86a517af   portainer/portainer   "/portainer"   43 hours ago   Up 43 hours   0.0.0.0:8088->9000/tcp, :::8088->9000/tcp   eager_agnesi
[root@Jsxs ~]# docker network create redis --subnet 172.38.0.0/16
b30cea89bd6c28834a7cf459b4b86471a3897e2caa20064f3ac0d3dc0a8681bb
[root@Jsxs ~]# docker network ls
NETWORK ID     NAME      DRIVER    SCOPE
dd0a347647db   bridge    bridge    local
3393698886d8   host      host      local
5448dff92c6d   mynet     bridge    local
bc710e60b055   none      null      local
b30cea89bd6c   redis     bridge    local
-------------------------------------------------------------------------
  通过脚本创建六个redis配置
  直接复制到命令行运行即可
for port in $(seq 1 6); \
do \
mkdir -p /mydata/redis/node-${port}/conf  #再目录/mydata中
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
-----------------------------------------------------------------------------
[root@Jsxs ~]# 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
[root@Jsxs ~]# cd /mydata
[root@Jsxs mydata]# ls
redis
[root@Jsxs mydata]# cd redis/
[root@Jsxs redis]# ls
node-1  node-2  node-3  node-4  node-5  node-6
---------------------------------------------------------------------------------
  上面就是创建的6个redis配置
  下面开始运行创建的6个节点
# 开始运行并创建6个容器，端口映射6379 名字 数据卷绑定 网络使用redis网络并绑定ip
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
---
[root@Jsxs redis]# docker ps
CONTAINER ID   IMAGE                    COMMAND                  CREATED          STATUS          PORTS                                                                                      NAMES
e0a19eb367dc   redis:5.0.9-alpine3.11   "docker-entrypoint.s…"   8 seconds ago    Up 6 seconds    0.0.0.0:6376->6379/tcp, :::6376->6379/tcp, 0.0.0.0:16376->16379/tcp, :::16376->16379/tcp   redis-6
68cf748d322f   redis:5.0.9-alpine3.11   "docker-entrypoint.s…"   17 seconds ago   Up 16 seconds   0.0.0.0:6375->6379/tcp, :::6375->6379/tcp, 0.0.0.0:16375->16379/tcp, :::16375->16379/tcp   redis-5
a5504370b19d   redis:5.0.9-alpine3.11   "docker-entrypoint.s…"   31 seconds ago   Up 29 seconds   0.0.0.0:6374->6379/tcp, :::6374->6379/tcp, 0.0.0.0:16374->16379/tcp, :::16374->16379/tcp   redis-4
f3d61ce52b42   redis:5.0.9-alpine3.11   "docker-entrypoint.s…"   39 seconds ago   Up 38 seconds   0.0.0.0:6373->6379/tcp, :::6373->6379/tcp, 0.0.0.0:16373->16379/tcp, :::16373->16379/tcp   redis-3
175c61fc2523   redis:5.0.9-alpine3.11   "docker-entrypoint.s…"   53 seconds ago   Up 52 seconds   0.0.0.0:6372->6379/tcp, :::6372->6379/tcp, 0.0.0.0:16372->16379/tcp, :::16372->16379/tcp   redis-2
d4050cf76348   redis:5.0.9-alpine3.11   "docker-entrypoint.s…"   2 minutes ago    Up 2 minutes    0.0.0.0:6371->6379/tcp, :::6371->6379/tcp, 0.0.0.0:16371->16379/tcp, :::16371->16379/tcp   redis-1
4aba86a517af   portainer/portainer      "/portainer"             44 hours ago     Up 44 hours     0.0.0.0:8088->9000/tcp, :::8088->9000/tcp                                                  eager_agnesi
---
  1. 搭建集群
[root@Jsxs redis]# docker exec -it redis-1 /bin/bash
OCI runtime exec failed: exec failed: unable to start container process: exec: "/bin/bash": stat /bin/bash: no such file or directory: unknown
[root@Jsxs redis]# docker exec -it redis-1 /bin/sh  #启动集群1
/data # ls
appendonly.aof  nodes.conf
#搭建集群
[root@Jsxs redis]# 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: a1a026ec68ef5d0f1089082bb5d9f3d986f0a920 172.38.0.11:6379
   slots:[0-5460] (5461 slots) master
M: e36cbe81e72f8b4ebfbf9a82b18fe11ea38c8720 172.38.0.12:6379
   slots:[5461-10922] (5462 slots) master
M: 46e745ac115598f54975b2ad4432dc087d678df7 172.38.0.13:6379
   slots:[10923-16383] (5461 slots) master
S: 121b91b02057378351c43b63abf62c7c5a281bf6 172.38.0.14:6379
   replicates 46e745ac115598f54975b2ad4432dc087d678df7
S: 93ff81b2883180b3266186f42caed428d01b6199 172.38.0.15:6379
   replicates a1a026ec68ef5d0f1089082bb5d9f3d986f0a920
S: af14b91dd41e0470d4c28702340716c48e61eb66 172.38.0.16:6379
   replicates e36cbe81e72f8b4ebfbf9a82b18fe11ea38c8720
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: a1a026ec68ef5d0f1089082bb5d9f3d986f0a920 172.38.0.11:6379
   slots:[0-5460] (5461 slots) master
   1 additional replica(s)
M: e36cbe81e72f8b4ebfbf9a82b18fe11ea38c8720 172.38.0.12:6379
   slots:[5461-10922] (5462 slots) master
   1 additional replica(s)
S: 93ff81b2883180b3266186f42caed428d01b6199 172.38.0.15:6379
   slots: (0 slots) slave
   replicates a1a026ec68ef5d0f1089082bb5d9f3d986f0a920
M: 46e745ac115598f54975b2ad4432dc087d678df7 172.38.0.13:6379
   slots:[10923-16383] (5461 slots) master
   1 additional replica(s)
S: 121b91b02057378351c43b63abf62c7c5a281bf6 172.38.0.14:6379
   slots: (0 slots) slave
   replicates 46e745ac115598f54975b2ad4432dc087d678df7
S: af14b91dd41e0470d4c28702340716c48e61eb66 172.38.0.16:6379
   slots: (0 slots) slave
   replicates e36cbe81e72f8b4ebfbf9a82b18fe11ea38c8720
[OK] All nodes agree about slots configuration.
>>> Check for open slots...
>>> Check slots coverage...
[OK] All 16384 slots covered.
  1. 测试
/data # redis-cli -c
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:454
cluster_stats_messages_pong_sent:471
cluster_stats_messages_sent:925
cluster_stats_messages_ping_received:466
cluster_stats_messages_pong_received:454
cluster_stats_messages_meet_received:5
cluster_stats_messages_received:925
127.0.0.1:6379> cluster nodes
e36cbe81e72f8b4ebfbf9a82b18fe11ea38c8720 172.38.0.12:6379@16379 master - 0 1679619838764 2 connected 5461-10922
93ff81b2883180b3266186f42caed428d01b6199 172.38.0.15:6379@16379 slave a1a026ec68ef5d0f1089082bb5d9f3d986f0a920 0 1679619838262 5 connected
46e745ac115598f54975b2ad4432dc087d678df7 172.38.0.13:6379@16379 master - 0 1679619839795 3 connected 10923-16383
121b91b02057378351c43b63abf62c7c5a281bf6 172.38.0.14:6379@16379 slave 46e745ac115598f54975b2ad4432dc087d678df7 0 1679619838000 4 connected
af14b91dd41e0470d4c28702340716c48e61eb66 172.38.0.16:6379@16379 slave e36cbe81e72f8b4ebfbf9a82b18fe11ea38c8720 0 1679619839565 6 connected
a1a026ec68ef5d0f1089082bb5d9f3d986f0a920 172.38.0.11:6379@16379 myself,master - 0 1679619837000 1 connected 0-5460
127.0.0.1:6379> set a b
-> Redirected to slot [15495] located at 172.38.0.13:6379
OK
172.38.0.13:6379> get a
^C
/data # redis-cli -c  #已经停掉主机了，再次重连。我们发现主机变了
127.0.0.1:6379> get a
-> Redirected to slot [15495] located at 172.38.0.14:6379
"b"
172.38.0.14:6379> cluster nodes
121b91b02057378351c43b63abf62c7c5a281bf6 172.38.0.14:6379@16379 myself,master - 0 1679620066000 7 connected 10923-16383
a1a026ec68ef5d0f1089082bb5d9f3d986f0a920 172.38.0.11:6379@16379 master - 0 1679620067986 1 connected 0-5460
af14b91dd41e0470d4c28702340716c48e61eb66 172.38.0.16:6379@16379 slave e36cbe81e72f8b4ebfbf9a82b18fe11ea38c8720 0 1679620067484 6 connected
93ff81b2883180b3266186f42caed428d01b6199 172.38.0.15:6379@16379 slave a1a026ec68ef5d0f1089082bb5d9f3d986f0a920 0 1679620066453 5 connected
e36cbe81e72f8b4ebfbf9a82b18fe11ea38c8720 172.38.0.12:6379@16379 master - 0 1679620066553 2 connected 5461-10922
46e745ac115598f54975b2ad4432dc087d678df7 172.38.0.13:6379@16379 master,fail - 1679619945828 1679619945025 3 connected

停掉服务

[root@Jsxs ~]# docker ps
CONTAINER ID   IMAGE                    COMMAND                  CREATED          STATUS          PORTS                                                                                      NAMES
e0a19eb367dc   redis:5.0.9-alpine3.11   "docker-entrypoint.s…"   13 minutes ago   Up 13 minutes   0.0.0.0:6376->6379/tcp, :::6376->6379/tcp, 0.0.0.0:16376->16379/tcp, :::16376->16379/tcp   redis-6
68cf748d322f   redis:5.0.9-alpine3.11   "docker-entrypoint.s…"   13 minutes ago   Up 13 minutes   0.0.0.0:6375->6379/tcp, :::6375->6379/tcp, 0.0.0.0:16375->16379/tcp, :::16375->16379/tcp   redis-5
a5504370b19d   redis:5.0.9-alpine3.11   "docker-entrypoint.s…"   13 minutes ago   Up 13 minutes   0.0.0.0:6374->6379/tcp, :::6374->6379/tcp, 0.0.0.0:16374->16379/tcp, :::16374->16379/tcp   redis-4
f3d61ce52b42   redis:5.0.9-alpine3.11   "docker-entrypoint.s…"   13 minutes ago   Up 13 minutes   0.0.0.0:6373->6379/tcp, :::6373->6379/tcp, 0.0.0.0:16373->16379/tcp, :::16373->16379/tcp   redis-3
175c61fc2523   redis:5.0.9-alpine3.11   "docker-entrypoint.s…"   14 minutes ago   Up 14 minutes   0.0.0.0:6372->6379/tcp, :::6372->6379/tcp, 0.0.0.0:16372->16379/tcp, :::16372->16379/tcp   redis-2
d4050cf76348   redis:5.0.9-alpine3.11   "docker-entrypoint.s…"   15 minutes ago   Up 15 minutes   0.0.0.0:6371->6379/tcp, :::6371->6379/tcp, 0.0.0.0:16371->16379/tcp, :::16371->16379/tcp   redis-1
4aba86a517af   portainer/portainer      "/portainer"             44 hours ago     Up 44 hours     0.0.0.0:8088->9000/tcp, :::8088->9000/tcp                                                  eager_agnesi
[root@Jsxs ~]# docker stop redis-3
redis-3

6.SpringBoot微服务打包Docker镜像

(1).构建SpringBoot项目并打包

两次测试是否能启动

(2).创建Dockerfile文件并编写配置

# 基础镜像来自java8
FROM java:8
# 拷贝当前路径下所有jar包，到项目的，重命名app.jar
COPY *.jar /app.jar
# 启动名命令
CMD ["--server.port=8080"]
# 暴露端口
EXPOSE 8080
# 执行命令
ENTRYPOINT ["java", "-jar", "/app.jar"]
(3).上传jar包和Dockerfile文件到linux

[root@Jsxs ~]# docker ps
CONTAINER ID   IMAGE                 COMMAND        CREATED        STATUS        PORTS                                       NAMES
4aba86a517af   portainer/portainer   "/portainer"   44 hours ago   Up 44 hours   0.0.0.0:8088->9000/tcp, :::8088->9000/tcp   eager_agnesi
[root@Jsxs ~]# cd /home
[root@Jsxs home]# ls
jsxs  liloucun  liloucunManger  properties  www
[root@Jsxs home]# mkdir idea
[root@Jsxs home]# cd idea/
[root@Jsxs idea]# ls
[root@Jsxs idea]# ls
Dockerfile  Docker-hello-0.0.1-SNAPSHOT.jar
[root@Jsxs idea]# docker build -t jsxs666 .
[+] Building 45.5s (7/7) FINISHED
 => [internal] load .dockerignore                                                                                                                        0.0s
 => => transferring context: 2B                                                                                                                          0.0s
 => [internal] load build definition from Dockerfile                                                                                                     0.0s
 => => transferring dockerfile: 304B                                                                                                                     0.0s
 => [internal] load metadata for docker.io/library/java:8                                                                                               15.9s
 => [internal] load build context                                                                                                                        0.4s
 => => transferring context: 17.65MB                                                                                                                     0.4s
 => [1/2] FROM docker.io/library/java:8@sha256:c1ff613e8ba25833d2e1940da0940c3824f03f802c449f3d1815a66b7f8c0e9d                                         27.2s
 => => resolve docker.io/library/java:8@sha256:c1ff613e8ba25833d2e1940da0940c3824f03f802c449f3d1815a66b7f8c0e9d                                          0.0s
 => => sha256:c1ff613e8ba25833d2e1940da0940c3824f03f802c449f3d1815a66b7f8c0e9d 2.00kB / 2.00kB                                                           0.0s
 => => sha256:fce5728aad85a763fe3c419db16885eb6f7a670a42824ea618414b8fb309ccde 18.54MB / 18.54MB                                                         2.3s
 => => sha256:d23bdf5b1b1b1afce5f1d0fd33e7ed8afbc084b594b9ccf742a5b27080d8a4a8 4.73kB / 4.73kB                                                           0.0s
 => => sha256:5040bd2983909aa8896b9932438c3f1479d25ae837a5f6220242a264d0221f2d 51.36MB / 51.36MB                                                        13.6s
 => => sha256:76610ec20bf5892e24cebd4153c7668284aa1d1151b7c3b0c7d50c579aa5ce75 42.50MB / 42.50MB                                                        11.3s
 => => sha256:60170fec2151d2108ed1420625c51138434ba4e0223d3023353d3f32ffe3cfc2 593.15kB / 593.15kB                                                       2.7s
 => => sha256:e98f73de8f0d2ef292f58b004d67bc6e9ee779dcfaff7ebb3964649d4787b872 214B / 214B                                                               3.0s
 => => sha256:11f7af24ed9cf47597dd6cf9963bb3e9109c963f0135e869a9e9b4999fdc12a3 242B / 242B                                                               3.4s
 => => sha256:49e2d6393f32abb1de7c9395c04c822ceb2287383d5a90998f7bd8dbfd43d48c 130.10MB / 130.10MB                                                      21.8s
 => => sha256:bb9cdec9c7f337940f7d872274353b66e118412cbfd433c711361bcf7922aea4 289.05kB / 289.05kB                                                      11.7s
 => => extracting sha256:5040bd2983909aa8896b9932438c3f1479d25ae837a5f6220242a264d0221f2d                                                                2.0s
 => => extracting sha256:fce5728aad85a763fe3c419db16885eb6f7a670a42824ea618414b8fb309ccde                                                                0.5s
 => => extracting sha256:76610ec20bf5892e24cebd4153c7668284aa1d1151b7c3b0c7d50c579aa5ce75                                                                1.9s
 => => extracting sha256:60170fec2151d2108ed1420625c51138434ba4e0223d3023353d3f32ffe3cfc2                                                                0.1s
 => => extracting sha256:e98f73de8f0d2ef292f58b004d67bc6e9ee779dcfaff7ebb3964649d4787b872                                                                0.0s
 => => extracting sha256:11f7af24ed9cf47597dd6cf9963bb3e9109c963f0135e869a9e9b4999fdc12a3                                                                0.0s
 => => extracting sha256:49e2d6393f32abb1de7c9395c04c822ceb2287383d5a90998f7bd8dbfd43d48c                                                                4.5s
 => => extracting sha256:bb9cdec9c7f337940f7d872274353b66e118412cbfd433c711361bcf7922aea4                                                                0.0s
 => [2/2] COPY *.jar /app.jar                                                                                                                            0.4s
 => exporting to image                                                                                                                                   1.7s
 => => exporting layers                                                                                                                                  1.7s
 => => writing image sha256:36b36b1a1129b33cd570a9dcef34190473009e60c75264f7df0d1c660f595560                                                             0.0s
 => => naming to docker.io/library/jsxs666
(4).启动测试
[root@Jsxs idea]# docker images
REPOSITORY            TAG       IMAGE ID       CREATED          SIZE
jsxs666               latest    36b36b1a1129   44 seconds ago   661MB
tomcat                7         9dfd74e6bc2f   20 months ago    533MB
portainer/portainer   latest    580c0e4e98b0   2 years ago      79.1MB
#启动容器
[root@Jsxs idea]# docker run -d -P --name jsxs66-springboot jsxs666
20c4bc16322db4a60aa96b9c4f24e25a4d40d93d7b9016ce363d261526e373b0
[root@Jsxs idea]# docker ps
CONTAINER ID   IMAGE                 COMMAND                  CREATED          STATUS          PORTS                                         NAMES
20c4bc16322d   jsxs666               "java -jar /app.jar …"   36 seconds ago   Up 34 seconds   0.0.0.0:32782->8080/tcp, :::32781->8080/tcp   jsxs66-springboot
4aba86a517af   portainer/portainer   "/portainer"             45 hours ago     Up 44 hours     0.0.0.0:8088->9000/tcp, :::8088->9000/tcp     eager_agnesi
[root@Jsxs idea]# curl localhost:32782  #测试
{"timestamp":"2023-03-24T01:42:32.441+00:00","status":404,"error":"Not Found","path":"/"}[root@Jsxs idea]# curl localhost:32782/hello
hello jsxs![root@Jsxs idea]#
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