Docker部署Nacos（單機/集群）

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注意：本文中的nacos版本為2.2.0

nacos官方文檔：

https://nacos.io/zh-cn/docs/quick-start-docker.html

1.單機部署

1.1 安裝docker ce 環(huán)境

略

1.2 下載nacos鏡像

	docker pull nacos/nacos-server

1.3 以單機模式啟動nacos

docker run --name nacos \
-e MODE=standalone \
-v /home/nacos/application.properties:/home/nacos/conf/application.properties \
-v /root/nacos/logs:/home/nacos/logs \
-p 8848:8848 -d \
-p 9848:9848 \
--restart always nacos/nacos-server:latest

命令解析：

命令	含義
-v	Docker容器啟動的時候，如果要掛載宿主機的一個目錄，可以用-v參數(shù)指定
-p	容器內(nèi)部端口和容器外部端口進(jìn)行映射，內(nèi)外端口有映射才能訪問。宿主機端口:容器內(nèi)部端口

以上命令，-v 指定我們啟動nacos時使用的配置文件，-p 將容器內(nèi)啟動的nacos默認(rèn)端口8848映射為主機端口8848供外部使用
?

1.4 查看啟動的nacos容器

docker ps

執(zhí)行結(jié)果，可以看到nacos服務(wù)（這里筆者已經(jīng)啟用nacos集群，所以此時的nacos為關(guān)閉狀態(tài)）
Docker部署Nacos（單機/集群）

2.集群部署（一臺服務(wù)器）

2.1 在單機模式的基礎(chǔ)上啟動

啟動nacos服務(wù)1

docker run --name nacos01 \
-e MODE=cluster \
-e NACOS_SERVERS="192.168.31.177:18848 192.168.31.177:28848" \
-e SPRING_DATASOURCE_PLATFORM=mysql \
-v /home/nacos/application.properties:/home/nacos/conf/application.properties \
-v /root/nacos/logs/nacos01:/home/nacos/logs \
-p 8848:8848 \
-d \
-p 9848:9848 \
-p 9849:9849 \
--restart always nacos/nacos-server:latest

啟動nacos服務(wù)2

docker run --name nacos02 \
-e MODE=cluster \
-e NACOS_SERVERS="192.168.31.177:8848 192.168.31.177:28848" \
-e SPRING_DATASOURCE_PLATFORM=mysql \
-v /home/nacos/application.properties:/home/nacos/conf/application.properties \
-v /root/nacos/logs/nacos01:/home/nacos/logs \
-p 18848:8848 \
-d \
-p 19848:9848 \
-p 19849:9849 \
--restart always nacos/nacos-server:latest

啟動nacos服務(wù)3

docker run --name nacos03 \
-e MODE=cluster \
-e NACOS_SERVERS="192.168.31.177:18848 192.168.31.177:8848" \
-e SPRING_DATASOURCE_PLATFORM=mysql \
-v /home/nacos/application.properties:/home/nacos/conf/application.properties \
-v /root/nacos/logs/nacos01:/home/nacos/logs \
-p 28848:8848 \
-d \
-p 29848:9848 \
-p 29849:9849 \
--restart always nacos/nacos-server:latest

2.2 查看啟動nacos的容器

執(zhí)行命令

docker ps

可以看到如下結(jié)果
Docker部署Nacos（單機/集群）
進(jìn)入到日志目錄，查看日志可以發(fā)現(xiàn)nacos已經(jīng)正常啟動

cd /root/nacos/logs/nacos01
tail -f nacos.log

Docker部署Nacos（單機/集群）
進(jìn)入到nacos系統(tǒng)中，可以看到集群節(jié)點已經(jīng)上線

3.常見問題：

1.端口未開放

# 開放端口 8848 18848 28848 ，這里是集群部署，所以是多個端口
firewall-cmd --zone=public --add-port=8848/tcp --permanent
firewall-cmd --zone=public --add-port=18848/tcp --permanent
firewall-cmd --zone=public --add-port=28848/tcp --permanent
# 防火墻重啟
firewall-cmd --reload
# 查看開放的端口
firewall-cmd --list-ports

2.No DataSource Set 數(shù)據(jù)庫配置有問題

可以參考 nacos官方docker示例中的application.properties

### Connect URL of DB:
db.url.0=jdbc:mysql://127.0.0.1:3306/nacos_config?characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true&useUnicode=true&useSSL=false&serverTimezone=UTC&useSSL=false&allowPublicKeyRetrieval=true
db.user.0=root
db.password.0=123456

重點是sql初始化的平臺，需要在啟動時傳入或?qū)懰?/strong>

spring.sql.init.platform=${SPRING_DATASOURCE_PLATFORM:}

3.異常：receive invalid redirect request from peer

請求出現(xiàn)了非責(zé)任節(jié)點的轉(zhuǎn)發(fā)，可參考nacos-issues-6149
解決方式文章來源地址http://www.zghlxwxcb.cn/news/detail-440775.html

### Specify local server's IP: nacos.inetutils.ip-address=服務(wù)器ip

4.nacos官方docker示例中的application.properties

# # Copyright 1999-2021 Alibaba Group Holding Ltd. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. # #*************** Spring Boot Related Configurations ***************# ### Default web context path: server.servlet.contextPath=/nacos ### Include message field server.error.include-message=ALWAYS ### Default web server port: server.port=8848 #*************** Network Related Configurations ***************# ### If prefer hostname over ip for Nacos server addresses in cluster.conf: # nacos.inetutils.prefer-hostname-over-ip=false ### Specify local server's IP: # nacos.inetutils.ip-address= #*************** Config Module Related Configurations ***************# ### Deprecated configuration property, it is recommended to use `spring.sql.init.platform` replaced. #spring.datasource.platform=${SPRING_DATASOURCE_PLATFORM:} spring.sql.init.platform=${SPRING_DATASOURCE_PLATFORM:} # nacos.plugin.datasource.log.enabled=true ### Count of DB: db.num=1 ### Connect URL of DB: db.url.0=jdbc:mysql://127.0.0.1:3306/nacos_config?characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true&useUnicode=true&useSSL=false&serverTimezone=UTC&useSSL=false&allowPublicKeyRetrieval=true db.user.0=root db.password.0=123456 ### Connection pool configuration: hikariCP db.pool.config.connectionTimeout=30000 db.pool.config.validationTimeout=10000 db.pool.config.maximumPoolSize=20 db.pool.config.minimumIdle=2 #*************** Naming Module Related Configurations ***************# ### Data dispatch task execution period in milliseconds: ### If enable data warmup. If set to false, the server would accept request without local data preparation: # nacos.naming.data.warmup=true ### If enable the instance auto expiration, kind like of health check of instance: # nacos.naming.expireInstance=true ### will be removed and replaced by `nacos.naming.clean` properties nacos.naming.empty-service.auto-clean=true nacos.naming.empty-service.clean.initial-delay-ms=50000 nacos.naming.empty-service.clean.period-time-ms=30000 ### Add in 2.0.0 ### The interval to clean empty service, unit: milliseconds. # nacos.naming.clean.empty-service.interval=60000 ### The expired time to clean empty service, unit: milliseconds. # nacos.naming.clean.empty-service.expired-time=60000 ### The interval to clean expired metadata, unit: milliseconds. # nacos.naming.clean.expired-metadata.interval=5000 ### The expired time to clean metadata, unit: milliseconds. # nacos.naming.clean.expired-metadata.expired-time=60000 ### The delay time before push task to execute from service changed, unit: milliseconds. # nacos.naming.push.pushTaskDelay=500 ### The timeout for push task execute, unit: milliseconds. # nacos.naming.push.pushTaskTimeout=5000 ### The delay time for retrying failed push task, unit: milliseconds. # nacos.naming.push.pushTaskRetryDelay=1000 ### Since 2.0.3 ### The expired time for inactive client, unit: milliseconds. # nacos.naming.client.expired.time=180000 #*************** CMDB Module Related Configurations ***************# ### The interval to dump external CMDB in seconds: # nacos.cmdb.dumpTaskInterval=3600 ### The interval of polling data change event in seconds: # nacos.cmdb.eventTaskInterval=10 ### The interval of loading labels in seconds: # nacos.cmdb.labelTaskInterval=300 ### If turn on data loading task: # nacos.cmdb.loadDataAtStart=false #*************** Metrics Related Configurations ***************# ### Metrics for prometheus #management.endpoints.web.exposure.include=* ### Metrics for elastic search management.metrics.export.elastic.enabled=false #management.metrics.export.elastic.host=http://localhost:9200 ### Metrics for influx management.metrics.export.influx.enabled=false #management.metrics.export.influx.db=springboot #management.metrics.export.influx.uri=http://localhost:8086 #management.metrics.export.influx.auto-create-db=true #management.metrics.export.influx.consistency=one #management.metrics.export.influx.compressed=true #*************** Access Log Related Configurations ***************# ### If turn on the access log: server.tomcat.accesslog.enabled=true ### accesslog automatic cleaning time server.tomcat.accesslog.max-days=30 ### The access log pattern: server.tomcat.accesslog.pattern=%h %l %u %t "%r" %s %b %D %{User-Agent}i %{Request-Source}i ### The directory of access log: server.tomcat.basedir=file:. #*************** Access Control Related Configurations ***************# ### If enable spring security, this option is deprecated in 1.2.0: #spring.security.enabled=false ### The ignore urls of auth, is deprecated in 1.2.0: nacos.security.ignore.urls=/,/error,/**/*.css,/**/*.js,/**/*.html,/**/*.map,/**/*.svg,/**/*.png,/**/*.ico,/console-ui/public/**,/v1/auth/**,/v1/console/health/**,/actuator/**,/v1/console/server/** ### The auth system to use, currently only 'nacos' and 'ldap' is supported: nacos.core.auth.system.type=nacos ### If turn on auth system: nacos.core.auth.enabled=false ### Turn on/off caching of auth information. By turning on this switch, the update of auth information would have a 15 seconds delay. nacos.core.auth.caching.enabled=true ### Since 1.4.1, Turn on/off white auth for user-agent: nacos-server, only for upgrade from old version. nacos.core.auth.enable.userAgentAuthWhite=false ### Since 1.4.1, worked when nacos.core.auth.enabled=true and nacos.core.auth.enable.userAgentAuthWhite=false. ### The two properties is the white list for auth and used by identity the request from other server. nacos.core.auth.server.identity.key=serverIdentity nacos.core.auth.server.identity.value=security ### worked when nacos.core.auth.system.type=nacos ### The token expiration in seconds: nacos.core.auth.plugin.nacos.token.expire.seconds=18000 ### The default token (Base64 string): nacos.core.auth.plugin.nacos.token.secret.key=SecretKey012345678901234567890123456789012345678901234567890123456789 ### worked when nacos.core.auth.system.type=ldap?{0} is Placeholder,replace login username #nacos.core.auth.ldap.url=ldap://localhost:389 #nacos.core.auth.ldap.basedc=dc=example,dc=org #nacos.core.auth.ldap.userDn=cn=admin,${nacos.core.auth.ldap.basedc} #nacos.core.auth.ldap.password=admin #nacos.core.auth.ldap.userdn=cn={0},dc=example,dc=org #nacos.core.auth.ldap.filter.prefix=uid #nacos.core.auth.ldap.case.sensitive=true #*************** Istio Related Configurations ***************# ### If turn on the MCP server: nacos.istio.mcp.server.enabled=false ###*************** Add from 1.3.0 ***************### #*************** Core Related Configurations ***************# ### set the WorkerID manually # nacos.core.snowflake.worker-id= ### Member-MetaData # nacos.core.member.meta.site= # nacos.core.member.meta.adweight= # nacos.core.member.meta.weight= ### MemberLookup ### Addressing pattern category, If set, the priority is highest # nacos.core.member.lookup.type=[file,address-server] ## Set the cluster list with a configuration file or command-line argument # nacos.member.list=192.168.16.101:8847?raft_port=8807,192.168.16.101?raft_port=8808,192.168.16.101:8849?raft_port=8809 ## for AddressServerMemberLookup # Maximum number of retries to query the address server upon initialization # nacos.core.address-server.retry=5 ## Server domain name address of [address-server] mode # address.server.domain=jmenv.tbsite.net ## Server port of [address-server] mode # address.server.port=8080 ## Request address of [address-server] mode # address.server.url=/nacos/serverlist #*************** JRaft Related Configurations ***************# ### Sets the Raft cluster election timeout, default value is 5 second # nacos.core.protocol.raft.data.election_timeout_ms=5000 ### Sets the amount of time the Raft snapshot will execute periodically, default is 30 minute # nacos.core.protocol.raft.data.snapshot_interval_secs=30 ### raft internal worker threads # nacos.core.protocol.raft.data.core_thread_num=8 ### Number of threads required for raft business request processing # nacos.core.protocol.raft.data.cli_service_thread_num=4 ### raft linear read strategy. Safe linear reads are used by default, that is, the Leader tenure is confirmed by heartbeat # nacos.core.protocol.raft.data.read_index_type=ReadOnlySafe ### rpc request timeout, default 5 seconds # nacos.core.protocol.raft.data.rpc_request_timeout_ms=5000 #*************** Distro Related Configurations ***************# ### Distro data sync delay time, when sync task delayed, task will be merged for same data key. Default 1 second. # nacos.core.protocol.distro.data.sync.delayMs=1000 ### Distro data sync timeout for one sync data, default 3 seconds. # nacos.core.protocol.distro.data.sync.timeoutMs=3000 ### Distro data sync retry delay time when sync data failed or timeout, same behavior with delayMs, default 3 seconds. # nacos.core.protocol.distro.data.sync.retryDelayMs=3000 ### Distro data verify interval time, verify synced data whether expired for a interval. Default 5 seconds. # nacos.core.protocol.distro.data.verify.intervalMs=5000 ### Distro data verify timeout for one verify, default 3 seconds. # nacos.core.protocol.distro.data.verify.timeoutMs=3000 ### Distro data load retry delay when load snapshot data failed, default 30 seconds. # nacos.core.protocol.distro.data.load.retryDelayMs=30000 ### enable to support prometheus service discovery #nacos.prometheus.metrics.enabled=true
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