ELK日志收集记录
logstash在需要收集日志的服务器里运行，将日志数据发送给es
在kibana页面查看es的数据
es和kibana安装：
rpm --import https://artifacts.elastic.co/GPG-KEY-elasticsearch cat << EOF >/etc/yum.repos.d/elasticsearch.repo [elasticsearch] name=Elasticsearch repository for 8.x packages baseurl=https://artifacts.elastic.co/packages/8.x/yum gpgcheck=1 gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch enabled=0 autorefresh=1 type=rpm-md EOF yum install -y --enablerepo=elasticsearch elasticsearch
# 安装完成后，在终端里可以找到es的密码
# 修改密码：'/usr/share/elasticsearch/bin/elasticsearch-reset-password -u elastic'
# config file: /etc/elasticsearch/elasticsearch.yml
# network.host: 0.0.0.0 允许其他服务器访问
# http.port 修改成可以外部访问的端口
# 启动es
systemctl start elasticsearch.service
# 测试是否可以访问：curl --cacert /etc/elasticsearch/certs/http_ca.crt -u elastic https://localhost:es_host
# 如果要在其他服务器里访问的话，需要先把证书移过去：/etc/elasticsearch/certs/http_ca.crt，直接复制证书的内容，在客户端保存成一个证书文件即可
# 在客户端里测试是否可以访问：curl --cacert path_to_ca.crt -u elastic https://localhost:es_host
# install kibana cat << EOF >/etc/yum.repos.d/kibana.repo [kibana-8.x] name=Kibana repository for 8.x packages baseurl=https://artifacts.elastic.co/packages/8.x/yum gpgcheck=1 gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch enabled=1 autorefresh=1 type=rpm-md EOF
# kibana和es可以安装到同一台服务器 yum install -y kibana # /etc/kibana/kibana.yml 修改server.port为外部可以访问的端口，server.host修改为0.0.0.0允许其他服务器访问，elasticsearch部分的可以先不用设置， # root用户使用：/usr/share/kibana/bin/kibana --allow-root systemctl start kibana.service # 首次打开kibana页面需要添加elastic的token，使用如下命令生成token # /usr/share/elasticsearch/bin/elasticsearch-create-enrollment-token -s kibana
# 登录的时候也需要es的用户名和密码
# 登录成功之后，/etc/kibana/kibana.yml的底部会自动添加elasticsearch的连接信息
需要收集日志的服务器里安装logstash：
rpm --import https://artifacts.elastic.co/GPG-KEY-elasticsearch cat <<EOF > /etc/yum.repos.d/logstash.repo [logstash-8.x] name=Elastic repository for 8.x packages baseurl=https://artifacts.elastic.co/packages/7.x/yum gpgcheck=1 gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch enabled=1 autorefresh=1 type=rpm-md EOF yum install -y logstash ln -s /usr/share/logstash/bin/logstash /usr/bin/logstash # install filebeat rpm --import https://packages.elastic.co/GPG-KEY-elasticsearch cat <<EOF > /etc/yum.repos.d/filebeat.repo [elastic-8.x] name=Elastic repository for 8.x packages baseurl=https://artifacts.elastic.co/packages/8.x/yum gpgcheck=1 gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch enabled=1 autorefresh=1 type=rpm-md EOF yum install -y filebeat
ln -s /usr/share/filebeat/bin/filebeat /usr/bin/logstash #filebeat->logstash->ES #filebeat从具体目录里拿文件的内容发送给logstash，logstash将数据发送给es
midr -m 777 -p /data/logstash
cat <<EOF >/data/logstash/filebeat.conf filebeat.inputs: - type: log paths: - /your_log_path/*.log output.logstash: hosts: ["127.0.0.1:5044"] EOF cat <<EOF >/data/logstash/logstash.conf # Sample Logstash configuration for creating a simple # Beats -> Logstash -> Elasticsearch pipeline. input { beats { port => 5044 client_inactivity_timeout => 600 } } filter{ mutate{ remove_field => ["agent"] remove_field => ["ecs"] remove_field => ["event"] remove_field => ["tags"] remove_field => ["@version"] remove_field => ["input"] remove_field => ["log"] } } output { elasticsearch { hosts => ["https://es_ip_address:es_port"] index => "log-from-logstash" user => "es_user_name" password => "es_password" ssl_certificate_authorities => "path_to_es_http_ca.crt" } } EOF
#es_http_ca.crt的内容和es服务器里的/etc/elasticsearch/certs/http_ca.crt内容相同 #filter里移除一些不必要的字段 #启动 logstash -f /data/logstash/logstash.conf >/dev/null 2>&1 & filebeat -e -c /data/logstash/filebeat.conf >/dev/null 2>&1 &
启动之后，filebeat.conf里配置的日志路径里可以copy一些文件做测试，或者已经有一些日志文件的话，都可以在kabana里看到配置的index被自动创建：
创建一个DataView就可以查看index里的文档内容：
在Discover里选择配置的dataview查看数据：
