查看安装环境
cat /etc/redhat-release
软件版本选用
- jdk: openjdk-11
- elasticsearch: 7.1.1
- kibana: 7.1.1
- logstash: 7.1.1
安装配置
一、安装JDK
二、安装ELK
1. 下载安装包
wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.1.1-x86_64.rpm
wget https://artifacts.elastic.co/downloads/kibana/kibana-7.1.1-x86_64.rpm
wget https://artifacts.elastic.co/downloads/logstash/logstash-7.1.1.rpm
2. 安装
rpm -ivh elasticsearch-7.1.1-x86_64.rpm
rpm -ivh kibana-7.1.1-x86_64.rpm
rpm -vih logstash-7.1.1.rpm
三、配置elasticsearch
1. 修改elasticsearch配置文件
vi /etc/elasticsearch/elasticsearch.yml
内容修改如下：
# ======================== Elasticsearch Configuration =========================
#
# NOTE: Elasticsearch comes with reasonable defaults for most settings.
# Before you set out to tweak and tune the configuration, make sure you
# understand what are you trying to accomplish and the consequences.
#
# The primary way of configuring a node is via this file. This template lists
# the most important settings you may want to configure for a production cluster.
#
# Please consult the documentation for further information on configuration options:
# https://www.elastic.co/guide/en/elasticsearch/reference/index.html
#
# ---------------------------------- Cluster -----------------------------------
#
# Use a descriptive name for your cluster:
#
# 集群名
cluster.name: es
#
# ------------------------------------ Node ------------------------------------
#
# Use a descriptive name for the node:
#
# node名
node.name: node-1
#
# Add custom attributes to the node:
#
#node.attr.rack: r1
#
# ----------------------------------- Paths ------------------------------------
#
# Path to directory where to store the data (separate multiple locations by comma):
#
# 数据目录
path.data: /var/lib/elasticsearch
#
# Path to log files:
#
path.logs: /var/log/elasticsearch
#
# ----------------------------------- Memory -----------------------------------
#
# Lock the memory on startup:
#
#bootstrap.memory_lock: true
#
# Make sure that the heap size is set to about half the memory available
# on the system and that the owner of the process is allowed to use this
# limit.
#
# Elasticsearch performs poorly when the system is swapping the memory.
#
# ---------------------------------- Network -----------------------------------
#
# Set the bind address to a specific IP (IPv4 or IPv6):
#
network.host: 0.0.0.0
#
# Set a custom port for HTTP:
#
http.port: 9200
#
# For more information, consult the network module documentation.
#
# --------------------------------- Discovery ----------------------------------
#
# Pass an initial list of hosts to perform discovery when this node is started:
# The default list of hosts is ["127.0.0.1", "[::1]"]
#
#discovery.seed_hosts: ["host1", "host2"]
#
# Bootstrap the cluster using an initial set of master-eligible nodes:
#
# 集群master需要和node名设置一致
cluster.initial_master_nodes: ["node-1"]
#
# For more information, consult the discovery and cluster formation module documentation.
#
# ---------------------------------- Gateway -----------------------------------
#
# Block initial recovery after a full cluster restart until N nodes are started:
#
#gateway.recover_after_nodes: 3
#
# For more information, consult the gateway module documentation.
#
# ---------------------------------- Various -----------------------------------
#
# Require explicit names when deleting indices:
#
#action.destructive_requires_name: true
# 增加参数，使head插件可以访问es
http.cors.enabled: true
http.cors.allow-origin: "*"
2. 设置elasticsearch的jave目录（手动安装java需设置yum安装的java无需设置）
- 修改配置文件
vi /etc/sysconfig/elasticsearch
- 设置java目录
JAVA_HOME=/opt/jdk-11
3. 启动elasticsearch
systemctl start elasticsearch
systemctl enable elasticsearch
4. 检测是否启动
[root@localhost tmp]# curl 127.0.0.1:9200
{
"name" : "node-1",
"cluster_name" : "es",
"cluster_uuid" : "YGJHe8LpRhaKXqij4SdlqQ",
"version" : {
"number" : "7.1.1",
"build_flavor" : "default",
"build_type" : "rpm",
"build_hash" : "7a013de",
"build_date" : "2019-05-23T14:04:00.380842Z",
"build_snapshot" : false,
"lucene_version" : "8.0.0",
"minimum_wire_compatibility_version" : "6.8.0",
"minimum_index_compatibility_version" : "6.0.0-beta1"
},
"tagline" : "You Know, for Search"
}
四、配置kibana
1. 修改配置文件
vi /etc/kibana/kibana.yml
内容修改如下：
# Kibana is served by a back end server. This setting specifies the port to use.
server.port: 5601
# Specifies the address to which the Kibana server will bind. IP addresses and host names are both valid values.
# The default is 'localhost', which usually means remote machines will not be able to connect.
# To allow connections from remote users, set this parameter to a non-loopback address.
server.host: "0.0.0.0"
# Enables you to specify a path to mount Kibana at if you are running behind a proxy.
# Use the `server.rewriteBasePath` setting to tell Kibana if it should remove the basePath
# from requests it receives, and to prevent a deprecation warning at startup.
# This setting cannot end in a slash.
#server.basePath: ""
# Specifies whether Kibana should rewrite requests that are prefixed with
# `server.basePath` or require that they are rewritten by your reverse proxy.
# This setting was effectively always `false` before Kibana 6.3 and will
# default to `true` starting in Kibana 7.0.
#server.rewriteBasePath: false
# The maximum payload size in bytes for incoming server requests.
#server.maxPayloadBytes: 1048576
# The Kibana server's name. This is used for display purposes.
server.name: "node-1"
# The URLs of the Elasticsearch instances to use for all your queries.
#elasticsearch.hosts: ["http://192.168.3.5:9200"]
# When this setting's value is true Kibana uses the hostname specified in the server.host
# setting. When the value of this setting is false, Kibana uses the hostname of the host
# that connects to this Kibana instance.
#elasticsearch.preserveHost: true
# Kibana uses an index in Elasticsearch to store saved searches, visualizations and
# dashboards. Kibana creates a new index if the index doesn't already exist.
kibana.index: ".kibana"
# The default application to load.
#kibana.defaultAppId: "home"
# If your Elasticsearch is protected with basic authentication, these settings provide
# the username and password that the Kibana server uses to perform maintenance on the Kibana
# index at startup. Your Kibana users still need to authenticate with Elasticsearch, which
# is proxied through the Kibana server.
#elasticsearch.username: "user"
#elasticsearch.password: "pass"
# Enables SSL and paths to the PEM-format SSL certificate and SSL key files, respectively.
# These settings enable SSL for outgoing requests from the Kibana server to the browser.
#server.ssl.enabled: false
#server.ssl.certificate: /path/to/your/server.crt
#server.ssl.key: /path/to/your/server.key
# Optional settings that provide the paths to the PEM-format SSL certificate and key files.
# These files validate that your Elasticsearch backend uses the same key files.
#elasticsearch.ssl.certificate: /path/to/your/client.crt
#elasticsearch.ssl.key: /path/to/your/client.key
# Optional setting that enables you to specify a path to the PEM file for the certificate
# authority for your Elasticsearch instance.
#elasticsearch.ssl.certificateAuthorities: [ "/path/to/your/CA.pem" ]
# To disregard the validity of SSL certificates, change this setting's value to 'none'.
#elasticsearch.ssl.verificationMode: full
# Time in milliseconds to wait for Elasticsearch to respond to pings. Defaults to the value of
# the elasticsearch.requestTimeout setting.
#elasticsearch.pingTimeout: 1500
# Time in milliseconds to wait for responses from the back end or Elasticsearch. This value
# must be a positive integer.
#elasticsearch.requestTimeout: 30000
# List of Kibana client-side headers to send to Elasticsearch. To send *no* client-side
# headers, set this value to [] (an empty list).
#elasticsearch.requestHeadersWhitelist: [ authorization ]
# Header names and values that are sent to Elasticsearch. Any custom headers cannot be overwritten
# by client-side headers, regardless of the elasticsearch.requestHeadersWhitelist configuration.
#elasticsearch.customHeaders: {}
# Time in milliseconds for Elasticsearch to wait for responses from shards. Set to 0 to disable.
#elasticsearch.shardTimeout: 30000
# Time in milliseconds to wait for Elasticsearch at Kibana startup before retrying.
#elasticsearch.startupTimeout: 5000
# Logs queries sent to Elasticsearch. Requires logging.verbose set to true.
#elasticsearch.logQueries: false
# Specifies the path where Kibana creates the process ID file.
#pid.file: /var/run/kibana.pid
# Enables you specify a file where Kibana stores log output.
#logging.dest: stdout
# Set the value of this setting to true to suppress all logging output.
#logging.silent: false
# Set the value of this setting to true to suppress all logging output other than error messages.
#logging.quiet: false
# Set the value of this setting to true to log all events, including system usage information
# and all requests.
#logging.verbose: false
# Set the interval in milliseconds to sample system and process performance
# metrics. Minimum is 100ms. Defaults to 5000.
#ops.interval: 5000
# Specifies locale to be used for all localizable strings, dates and number formats.
#i18n.locale: "en"
2. 启动
systemctl start kibana
systemctl enable kibana
web页面查看，还没有索引
3. 安装head
4. 集群健康状态检查
curl -XGET 'http://192.168.3.5:9200/_cluster/health?pretty=true'
5. 写一个配置文件收集系统日志
vi /etc/logstash/conf.d/file.conf
内容如下：
input{
file{
path => ["/var/log/messages"]
type => "system-log"
start_position => "beginning"
}
}
filter{
}
output{
elasticsearch{
hosts => ["192.168.3.5:9200"]
index => "system-log-%{+YYYY.MM}"
}
}
5. 启动放置在后台
/usr/share/logstash/bin/logstash -f /etc/logstash/conf.d/file.conf &
6. 停止logstash
- 找到logstash的进程
ps aux | grep logstash
- 杀死对应进程
sudo kill <PID>
7. 使用服务的方式启动
- 编辑
/etc/logstash/startup.options
vi /etc/logstash/startup.options
修改内容如下：
################################################################################
# These settings are ONLY used by $LS_HOME/bin/system-install to create a custom
# startup script for Logstash and is not used by Logstash itself. It should
# automagically use the init system (systemd, upstart, sysv, etc.) that your
# Linux distribution uses.
#
# After changing anything here, you need to re-run $LS_HOME/bin/system-install
# as root to push the changes to the init script.
################################################################################
# Override Java location
#JAVACMD=/usr/bin/java
# JDK安装位置
JAVA_HOME=/opt/jdk-11
# Set a home directory
LS_HOME=/usr/share/logstash
# logstash settings directory, the path which contains logstash.yml
LS_SETTINGS_DIR=/etc/logstash
# Arguments to pass to logstash
#LS_OPTS="--path.settings ${LS_SETTINGS_DIR}"
# logstash的配置文件*.conf在/etc/logstash/conf.d/目录下
LS_OPTS="--path.settings ${LS_SETTINGS_DIR} --path.config /etc/logstash/conf.d/"
# Arguments to pass to java
LS_JAVA_OPTS=""
# pidfiles aren't used the same way for upstart and systemd; this is for sysv users.
LS_PIDFILE=/var/run/logstash.pid
# user and group id to be invoked as
LS_USER=logstash
LS_GROUP=logstash
# Enable GC logging by uncommenting the appropriate lines in the GC logging
# section in jvm.options
LS_GC_LOG_FILE=/var/log/logstash/gc.log
# Open file limit
LS_OPEN_FILES=16384
# Nice level
LS_NICE=19
# Change these to have the init script named and described differently
# This is useful when running multiple instances of Logstash on the same
# physical box or vm
SERVICE_NAME="logstash"
SERVICE_DESCRIPTION="logstash"
# If you need to run a command or script before launching Logstash, put it
# between the lines beginning with `read` and `EOM`, and uncomment those lines.
###
## read -r -d '' PRESTART << EOM
## EOM
- 以root身份执行logstash命令创建服务
/usr/share/logstash/bin/system-install
执行完后，会生成一个环境变量文件/etc/default/logstash
另一个生成的则是主要的服务文件/etc/systemd/system/logstash.service，内容如下：
[Unit]
Description=logstash
[Service]
Type=simple
User=logstash
Group=logstash
# Load env vars from /etc/default/ and /etc/sysconfig/ if they exist.
# Prefixing the path with '-' makes it try to load, but if the file doesn't
# exist, it continues onward.
EnvironmentFile=-/etc/default/logstash
EnvironmentFile=-/etc/sysconfig/logstash
ExecStart=/usr/share/logstash/bin/logstash "--path.settings" "/etc/logstash" "--path.config" "/etc/logstash/conf.d/"
Restart=always
WorkingDirectory=/
Nice=19
LimitNOFILE=16384
[Install]
WantedBy=multi-user.target
- 启动logstash
systemctl start logstash
- 开机自启动
systemctl enable logstash
8. 日志查看
默认情况下日志会保存在以下两个位置
- /var/log/messages
- /usr/share/logstash
9. 文件介绍
-
/etc/logstash/logstash.yml：主要用于控制logstash运行时的状态
-
/etc/logstash/startup.options：logstash 运行相关参数
