docker安装Elasticsearch7.6集群并设置密码的方法步骤

目录一些基础配置关于版本和docker镜像开始关于elasticsearch.yml关于证书elastic-certificates.p12生成密码使用密码忘记密码

Elasticsearch从6.8开始， 允许免费用户使用X-Pack的安全功能， 以前安装es都是裸奔。接下来记录配置安全认证的方法。

为了简化物理安装过程，我们将使用docker安装我们的服务。

一些基础配置

es需要修改linux的一些参数。

设置vm.max_map_count=262144

sudo vim /etc/sysctl.conf vm.max_map_count=262144

不重启， 直接生效当前的命令

sysctl -w vm.max_map_count=262144

es的data和logs目录需要给1000的用户授权， 我们假设安装3个实力的es集群，先创建对应的数据存储文件

mkdir -p es01/data mkdir -p es01/logs mkdir -p es02/data mkdir -p es02/logs mkdir -p es03/data mkdir -p es03/logs ## es的用户id为1000，这里暂且授权给所有人好了 sudo chmod 777 es* -R

关于版本和docker镜像

Elasticsearch分几种licenses，其中Open Source和Basic是免费的， 而在6.8之后安全功能才开始集成在es的Basic授权上。

Basic对应docker镜像为

docker pull docker.elastic.co/elasticsearch/elasticsearch:7.6.2

同时dockerhub同步为elasticsearch. 我们直接拉取elasticsearch:7.6.2就好。

开始

首先，创建docker-compose.yml

version: 2.2 services: es01: image: elasticsearch:7.6.2 container_name: es01 environment: – node.name=es01 – cluster.name=es-docker-cluster – discovery.seed_hosts=es02,es03 – cluster.initial_master_nodes=es01,es02,es03 – bootstrap.memory_lock=true – “ES_JAVA_OPTS=-Xms512m -Xmx512m” ulimits: memlock: soft: -1 hard: -1 volumes: – ./es01/data:/usr/share/elasticsearch/data – ./es01/logs:/usr/share/elasticsearch/logs – ./elasticsearch.yml:/usr/share/elasticsearch/config/elasticsearch.yml – ./elastic-certificates.p12:/usr/share/elasticsearch/config/elastic-certificates.p12 ports: – 9200:9200 networks: – elastic es02: image: elasticsearch:7.6.2 container_name: es02 environment: – node.name=es02 – cluster.name=es-docker-cluster – discovery.seed_hosts=es01,es03 – cluster.initial_master_nodes=es01,es02,es03 – bootstrap.memory_lock=true – “ES_JAVA_OPTS=-Xms512m -Xmx512m” ulimits: memlock: soft: -1 hard: -1 volumes: – ./es02/data:/usr/share/elasticsearch/data – ./es02/logs:/usr/share/elasticsearch/logs – ./elasticsearch.yml:/usr/share/elasticsearch/config/elasticsearch.yml – ./elastic-certificates.p12:/usr/share/elasticsearch/config/elastic-certificates.p12 ports: – 9201:9200 networks: – elastic es03: image: elasticsearch:7.6.2 container_name: es03 environment: – node.name=es03 – cluster.name=es-docker-cluster – discovery.seed_hosts=es01,es02 – cluster.initial_master_nodes=es01,es02,es03 – bootstrap.memory_lock=true – “ES_JAVA_OPTS=-Xms512m -Xmx512m” ulimits: memlock: soft: -1 hard: -1 volumes: – ./es03/data:/usr/share/elasticsearch/data – ./es03/logs:/usr/share/elasticsearch/logs – ./elasticsearch.yml:/usr/share/elasticsearch/config/elasticsearch.yml – ./elastic-certificates.p12:/usr/share/elasticsearch/config/elastic-certificates.p12 ports: – 9202:9200 networks: – elastic kib01: depends_on: – es01 image: kibana:7.6.2 container_name: kib01 ports: – 5601:5601 environment: ELASTICSEARCH_URL: http://es01:9200 ELASTICSEARCH_HOSTS: http://es01:9200 volumes: – ./kibana.yml:/usr/share/kibana/config/kibana.yml networks: – elastic networks: elastic: driver: bridge

关于elasticsearch.yml

内容如下

network.host: 0.0.0.0 xpack.security.enabled: true xpack.security.transport.ssl.enabled: true xpack.security.transport.ssl.keystore.type: PKCS12 xpack.security.transport.ssl.verification_mode: certificate xpack.security.transport.ssl.keystore.path: elastic-certificates.p12 xpack.security.transport.ssl.truststore.path: elastic-certificates.p12 xpack.security.transport.ssl.truststore.type: PKCS12 xpack.security.audit.enabled: true network.host 设置允许其他ip访问，解除ip绑定 xpack.security 则是安全相关配置，其中ssl的证书需要自己生成

关于证书elastic-certificates.p12

es提供了生成证书的工具elasticsearch-certutil，我们可以在docker实例中生成它，然后复制出来，后面统一使用。

首先运行es实例

sudo docker run -dit –name=es elasticsearch:7.6.2 /bin/bash

进入实例内部

sudo docker exec -it es /bin/bash

生成ca: elastic-stack-ca.p12

[root@25dee1848942 elasticsearch]# ./bin/elasticsearch-certutil ca This tool assists you in the generation of X.509 certificates and certificate signing requests for use with SSL/TLS in the Elastic stack. The ca mode generates a new certificate authority This will create a new X.509 certificate and private key that can be used to sign certificate when running in cert mode. Use the ca-dn option if you wish to configure the distinguished name of the certificate authority By default the ca mode produces a single PKCS#12 output file which holds: * The CA certificate * The CAs private key If you elect to generate PEM format certificates (the -pem option), then the output will be a zip file containing individual files for the CA certificate and private key Please enter the desired output file [elastic-stack-ca.p12]: Enter password for elastic-stack-ca.p12 :

再生成cert: elastic-certificates.p12

[root@25dee1848942 elasticsearch]# ./bin/elasticsearch-certutil cert –ca elastic-stack-ca.p12 This tool assists you in the generation of X.509 certificates and certificate signing requests for use with SSL/TLS in the Elastic stack. The cert mode generates X.509 certificate and private keys.

这个生成elastic-certificates.p12 就是我们需要使用的。

复制出证书, ctrl+d退出容器内部

sudo docker cp es:/usr/share/elasticsearch/elastic-certificates.p12 . # 关闭这个容器 sudo docker kill es sudo docker rm es

如此获取了证书。

生成密码

我们首先要启动es集群，去里面生成密码。

sudo docker-compose up

然后进入其中一台

sudo docker exec -it es01 /bin/bash

生成密码用auto， 自己设置用 interactive

[root@cfeeab4bb0eb elasticsearch]# ./bin/elasticsearch-setup-passwords -h Sets the passwords for reserved users Commands ——– auto – Uses randomly generated passwords interactive – Uses passwords entered by a user Non-option arguments: command Option Description —— ———– -E <KeyValuePair> Configure a setting -h, –help Show help -s, –silent Show minimal output -v, –verbose Show verbose output [root@cfeeab4bb0eb elasticsearch]# ./bin/elasticsearch-setup-passwords auto Initiating the setup of passwords for reserved users elastic,apm_system,kibana,logstash_system,beats_system,remote_monitoring_user. The passwords will be randomly generated and printed to the console. Please confirm that you would like to continue [y/N]y Changed password for user apm_system PASSWORD apm_system = YxVzeT9B2jEDUjYp66Ws Changed password for user kibana PASSWORD kibana = 8NnThbj0N02iDaTGhidU Changed password for user logstash_system PASSWORD logstash_system = 9nIDGe7KSV8SQidSk8Dj Changed password for user beats_system PASSWORD beats_system = qeuVaf1VEALpJHfEUOjJ Changed password for user remote_monitoring_user PASSWORD remote_monitoring_user = DtZCrCkVTZsinRn3tW3D Changed password for user elastic PASSWORD elastic = q5f2qNfUJQyvZPIz57MZ

使用密码

浏览器访问localhost:9200/9201/9202 需要输入账号

输入对应的elastic/password就好

浏览器访问localhost:5601

忘记密码

如果生成后忘记密码了怎么办， 可以进入机器去修改。

进入es的机器

sudo docker exec -it es01 /bin/bash

创建一个临时的超级用户RyanMiao

./bin/elasticsearch-users useradd ryan -r superuser Enter new password: ERROR: Invalid password…passwords must be at least [6] characters long [root@cfeeab4bb0eb elasticsearch]# ./bin/elasticsearch-users useradd ryan -r superuser Enter new password: Retype new password:

用这个用户去修改elastic的密码：

curl -XPUT -u ryan:ryan123 http://localhost:9200/_xpack/security/user/elastic/_password -H “Content-Type: application/json” -d { “password”: “q5f2qNfUJQyvZPIz57MZ” }

参考 http://codingfundas.com/setting-up-elasticsearch-6-8-with-kibana-and-x-pack-security-enabled/index.html