写在前面

1. 必要环境jdk1.8、maven并配置环境变量
2. nacos版本2.1.0 下载地址 官网地址
3. nacos默认为集群启动，所以如果你打算做集群，那么启动的话使用./startup.sh -m standalone
4. 访问地址 ip:8849/nacos 默认账号 nacos 密码 nacos
5. 数据库版本mysql8 （不需加mysql8驱动）
6. startup.sh未进行任何修改（JVM Configuration 如果你不需要变更的话 可以不改）

下载并解压

下载地址

#下载后移动到对应目录并解压 命令如下
tar -zxvf nacos-server-2.1.0.tar.gz

#将解压的目录移动到你要安装的地方 如果要移到的目录是root权限请对应更换root权限
sudo mv nacos  /usr/local/software/alibaba

#进入/usr/local/software/alibaba
cd /usr/local/software/alibaba

# nacos改名为nacos-2.1.0-8848
sudo mv nacos nacos-2.1.0-8848
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单机部署使用nacaos自带库（不建议）

配置文件啥也不用改

#进去安装目录的bin目录进行单节点启动
./startup.sh -m standalone

# 查看日志
cat /usr/local/software/alibaba/nacos-2.1.0-8849/logs/start.out
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单机部署使用mysql库

前提

1. 生成数据库 进入你安装目录下的/usr/local/software/alibaba/nacos-2.1.0-8848/conf目录 下面有一个nacos-mysql.sql，把下面的sql复制出来 然后建立库表
   ![在这里插入图片描述](https://img-blog.csdnimg.cn/ce919654bc6f4ea191bf41429a265d66.png

# 进入安装目录的config目录
cd /usr/local/software/alibaba/nacos-2.1.0-8848/conf

# 编辑application.properties
vim application.properties
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关注图片标红位置，修改后文件如下

#
# 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
### 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 ***************#
### If use MySQL as datasource:
spring.datasource.platform=mysql

### Count of DB:
db.num=1

#mysql5.6配置
### Connect URL of DB:
# db.url.0=jdbc:mysql://127.0.0.1:3306/nacos?characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true&useUnicode=true&useSSL=false&serverTimezone=UTC
# db.user.0=nacos
# db.password.0=nacos

#mysql8配置
db.url.0=jdbc:mysql://127.0.0.1:3306/nacos?useSSL=false&useUnicode=true&characterEncoding=utf-8&zeroDateTimeBehavior=convertToNull&transformedBitIsBoolean=true&autoReconnect=true&failOverReadOnly=false&serverTimezone=Asia/Shanghai&allowPublicKeyRetrieval=true&nullCatalogMeansCurrent=true
db.user.0=root
db.password.0=root

### 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: Will removed on v2.1.X, replace with nacos.core.protocol.distro.data.sync.delayMs
# nacos.naming.distro.taskDispatchPeriod=200

### Data count of batch sync task: Will removed on v2.1.X. Deprecated
# nacos.naming.distro.batchSyncKeyCount=1000

### Retry delay in milliseconds if sync task failed: Will removed on v2.1.X, replace with nacos.core.protocol.distro.data.sync.retryDelayMs
# nacos.naming.distro.syncRetryDelay=5000

### 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

### 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=

#*************** 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:
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


#*************** Istio Related Configurations ***************#
### If turn on the MCP server:
nacos.istio.mcp.server.enabled=false

#*************** 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
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启动

#进去安装目录的bin目录进行单节点启动
./startup.sh -m standalone

# 查看日志
cat /usr/local/software/alibaba/nacos-2.1.0-8849/logs/start.out
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集群部署

注意
按照官网所描述，2.x之后一个nacos服务会占用两个端口，所以我前期打算端口分别是8846、8847、8848发现8847一直提示地址被占用

和单集结点部署一样 要建好数据库 打算三个nacos节点的地址

配置

#进入安装目录conf
cd /usr/local/software/alibaba/nacos-2.1.0-8848/conf

# cp application.properties.example 为 application.properties
cp cluster.conf.example  cluster.conf
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修改cluster.conf

将已有example删除并填写你的nacos集群

#
# 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.
#

#it is ip
127.0.0.1:8844
127.0.0.1:8847
127.0.0.1:8848
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复制

将nacos-2.1.0-8848分别复制新增两个nacos-2.1.0-8844、nacos-2.1.0-8847，并修改application.properties端口号8846、8847

启动

这个时候就可以启动了，不过后面还要配置nginx负载均衡

# 进入任何一个naocs服务的bin
cd /usr/local/software/alibaba

# 分别进行集群启动
./nacos-2.1.0-8844/bin/startup.sh
./nacos-2.1.0-8847/bin/startup.sh
./nacos-2.1.0-8848/bin/startup.sh

# 查看日志
cat /usr/local/software/alibaba/nacos-2.1.0-8844/logs/start.out
cat /usr/local/software/alibaba/nacos-2.1.0-8847/logs/start.out
cat /usr/local/software/alibaba/nacos-2.1.0-8848/logs/start.out
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访问效果如下

nginx负载均衡

#进入nginx配置文件目录
cd /usr/local/software/apache/nginx-1.19.7/conf

#修改配置文件
vim nginx.conf
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在http {}里的最下面加入以下

   upstream nacos-cluster {
        server 127.0.0.1:8844;
        server 127.0.0.1:8846;
        server 127.0.0.1:8848;
   }

  server {
    listen       8083;
    server_name  localhost;

    location /nacos {
        proxy_pass http://nacos-cluster;
    }
  }
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# 进入sbin
cd /usr/local/software/apache/nginx-1.19.7/sbin

# 开启nginx
sudo ./nginx -c /usr/local/software/apache/nginx-1.19.7/conf/nginx.conf
sudo ./nginx -s reload

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访问如下