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Introduction to Docker

Docker is an open source application container engine that allows developers to package their applications and dependencies into a portable container, then publish them to any popular Linux or Windows machine, or virtualize them. Containers are completely sandboxed and do not have any interface to each other.

Log and audit

Collect and archive security logs related to Docker to achieve the purpose of audit and supervision. From host [8], you can use the following command to access log files outside the container:

Docker run-v / dev/log:/dev/log/bin/sh

Use the Docker command built-in:

Docker logs (- f to follow log output)

Log files can also be exported from persistent storage to a compressed package that uses:

Docker export

Modify the configuration file:

Vim / etc/docker/daemon.json {"insecure-registries": ["harbor.yunjingtech.cn:30002"], "log-driver": "json-file", "log-opts": {"max-size": "100m", "max-file": "3"}}

# A maximum of 100m for a single log file and a maximum of three log files

Restart docker:

Systemctl daemon-reloadsystemctl restart docker.service

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