Install Log Agent on Docker

Before installing the agent on the operating systems we support below, you need to download the certificate according to the instructions at Initialize Certificate . Information on setting up the agent is in the readme file, and the instruction scripts are also in the downloaded certificate file. Use this information with the instructions below to complete Agent for Log setup.

Setting

FilebeatLogstash

• Download images

Copy docker pull docker.elastic.co/beats/filebeat:8.7.0

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• Download the certificate to get user authentication information

• If using the prepared script in the download folder, run the command:

  • In the setup example below, we will mount /var/log/app.logan agent installed using docker to push logs to the system

Copy docker compose up -d -f docker-compose.yml

The configuration files below have been prepared by us in the script when downloading the certificate. The description below helps readers imagine what it would be like if we created a manual.

Configuration

Filedocker-compose.yml Copy version: "3" services: filebeat-agent-vmonitor: image: docker.elastic.co/beats/filebeat:8.7.0 container_name: filebeat-agent-vmonitor restart: always env_file: - container.env volumes: - $PWD/filebeat.yml:/usr/share/filebeat/filebeat.yml - $PWD/VNG.trust.pem:/usr/share/filebeat/VNG.trust:rw - $PWD/user.cer.pem:/usr/share/filebeat/user.cer.pem:rw - $PWD/user.key.pem:/usr/share/filebeat/user.key.pem:rw - /var/log/app.log:/var/log/app.log:ro - /var/log/filebeat/:/var/log/filebeat/ logging: driver: "json-file" options: max-size: "50m" deploy: resources: limits: cpus: '1' memory: 2G File filebeat.yml. The configuration below will retrieve all logs written to file /var/log/app.logfor vMonitor Platform: Copy filebeat.inputs: - type: log paths: - /var/log/app.log output.kafka: hosts: ${BOOTSTRAP_SERVERS} topic: ${TOPIC} partition.round_robin: reachable_only: false required_acks: 1 compression: gzip max_message_bytes: 1000000 ssl.certificate_authorities: - /usr/share/filebeat/VNG.trust ssl.certificate: /usr/share/filebeat/user.cer.pem ssl.key: /usr/share/filebeat/user.key.pem ssl.verification_mode: "none" logging.level: info logging.to_files: true logging.files: path: /var/log/filebeat name: filebeat keepfiles: 7 permissions: 0644 Note: the $ variables BOOTSTRAP_SERVERS, $TOPICabove are already in container.envthe file in the downloaded certificate folder.
Copy version: "3" services: filebeat-agent-vmonitor: image: docker.elastic.co/beats/filebeat:8.7.0 container_name: filebeat-agent-vmonitor restart: always env_file: - container.env volumes: - $PWD/filebeat.yml:/usr/share/filebeat/filebeat.yml - $PWD/VNG.trust.pem:/usr/share/filebeat/VNG.trust:rw - $PWD/user.cer.pem:/usr/share/filebeat/user.cer.pem:rw - $PWD/user.key.pem:/usr/share/filebeat/user.key.pem:rw - /var/log/app.log:/var/log/app.log:ro - /var/log/filebeat/:/var/log/filebeat/ logging: driver: "json-file" options: max-size: "50m" deploy: resources: limits: cpus: '1' memory: 2G
Copy filebeat.inputs: - type: log paths: - /var/log/app.log output.kafka: hosts: ${BOOTSTRAP_SERVERS} topic: ${TOPIC} partition.round_robin: reachable_only: false required_acks: 1 compression: gzip max_message_bytes: 1000000 ssl.certificate_authorities: - /usr/share/filebeat/VNG.trust ssl.certificate: /usr/share/filebeat/user.cer.pem ssl.key: /usr/share/filebeat/user.key.pem ssl.verification_mode: "none" logging.level: info logging.to_files: true logging.files: path: /var/log/filebeat name: filebeat keepfiles: 7 permissions: 0644
Copy version: "3" services: filebeat-agent-vmonitor: image: docker.elastic.co/beats/filebeat:8.7.0 container_name: filebeat-agent-vmonitor restart: always env_file: - container.env volumes: - $PWD/filebeat.yml:/usr/share/filebeat/filebeat.yml - $PWD/VNG.trust.pem:/usr/share/filebeat/VNG.trust:rw - $PWD/user.cer.pem:/usr/share/filebeat/user.cer.pem:rw - $PWD/user.key.pem:/usr/share/filebeat/user.key.pem:rw - /var/log/app.log:/var/log/app.log:ro - /var/log/filebeat/:/var/log/filebeat/ logging: driver: "json-file" options: max-size: "50m" deploy: resources: limits: cpus: '1' memory: 2G
Copy filebeat.inputs: - type: log paths: - /var/log/app.log output.kafka: hosts: ${BOOTSTRAP_SERVERS} topic: ${TOPIC} partition.round_robin: reachable_only: false required_acks: 1 compression: gzip max_message_bytes: 1000000 ssl.certificate_authorities: - /usr/share/filebeat/VNG.trust ssl.certificate: /usr/share/filebeat/user.cer.pem ssl.key: /usr/share/filebeat/user.key.pem ssl.verification_mode: "none" logging.level: info logging.to_files: true logging.files: path: /var/log/filebeat name: filebeat keepfiles: 7 permissions: 0644

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Administration

FilebeatLogstash

Stop Copy docker stop filebeat Reload Copy docker kill --signal=HUP filebeat Restart Copy docker restart filebeat Observe Copy docker logs --tail 100 -f filebeat Uninstall Copy docker rm filebeat
Copy docker stop filebeat
Copy docker kill --signal=HUP filebeat
Copy docker restart filebeat
Copy docker logs --tail 100 -f filebeat
Copy docker rm filebeat
Copy docker stop filebeat
Copy docker kill --signal=HUP filebeat
Copy docker restart filebeat
Copy docker logs --tail 100 -f filebeat
Copy docker rm filebeat

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Before performing agent installation on the operating systems we support below, you need to Initialize Certificate . The setup agent instructions are in the readme file, the script instructions are also in the downloaded certificate file. Use this information with the instructions below to complete Agent for Log setup.