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yonran
Asked: 2017-05-06 12:37:27 +0800 CST

How to increase log size in Google Container Engine?

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We would like to increase the size of the logs that kubectl log retrieves.

As of Container-Optimized OS (COS) VERSION_ID=56 BUILD_ID=9000.84.2 (according to /etc/os-release), the following logrotate script is used: /etc/logrotate.d/docker-containers:

/var/lib/docker/containers/*/*-json.log {
    rotate 5
    copytruncate
    missingok
    notifempty
    compress
    maxsize 10M
    daily
    dateext
    dateformat -%Y%m%d-%s
    create 0644 root root
}

How can I increase the maxsize from 10M?

One thing I thought would be set the user-data metadata within the nodePools creation, but the NodeConfig documentation states that this is impossible: “keys must not conflict with any other metadata keys for the project or be one of the four reserved keys: "instance-template", "kube-env", "startup-script", and "user-data"”

google-compute-engine

1 Answers

  1. In Google Container Engine clusters that are created from newer build of Container-Optimized OS (COS) images the value of maxsize for logrotate is changed to 100M

    /var/log/*.log {
    rotate 5
    copytruncate
    missingok
    notifempty
    compress
    maxsize 100M
    daily
    dateext
    dateformat -%Y%m%d-%s
    create 0644 root root
}
    • 1