Docker logging drivers - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the command to run a Docker container with the default logging driver.

Docker

docker run --log-driver=[1] nginx

Drag options to blanks, or click blank then click option'

Ajson-file

Bsyslog

Cnone

Djournald

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing 'none' disables logging, which is not default.

Choosing 'syslog' or 'journald' requires extra setup.

The default Docker logging driver is json-file, which stores logs as JSON on the local disk.

2fill in blank

medium

Complete the command to run a Docker container using the syslog logging driver.

Docker

docker run --log-driver=[1] alpine echo hello

Drag options to blanks, or click blank then click option'

Ajson-file

Bfluentd

Cnone

Dsyslog

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'json-file' will keep logs local, not send to syslog.

Choosing 'none' disables logging.

The syslog logging driver sends container logs to the syslog daemon on the host.

3fill in blank

hard

Fix the error in the command to disable logging for a container.

Docker

docker run --log-driver=[1] busybox echo test

Drag options to blanks, or click blank then click option'

Asyslog

Bjson-file

Cnone

Djournald

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'json-file' or 'syslog' will still produce logs.

Choosing 'journald' sends logs to systemd journal, not disables.

Setting the logging driver to none disables logging for the container.

4fill in blank

hard

Fill both blanks to configure a container to use the fluentd logging driver with a custom address.

Docker

docker run --log-driver=[1] --log-opt [2]=192.168.1.100:24224 alpine echo hi

Drag options to blanks, or click blank then click option'

Afluentd

Bsyslog-address

Cfluentd-address

Djson-file

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'syslog-address' option with fluentd driver is incorrect.

Choosing 'json-file' driver does not support fluentd options.

The fluentd logging driver sends logs to a Fluentd collector. The option fluentd-address sets the collector's address.

5fill in blank

hard

Fill all three blanks to create a Docker daemon configuration file snippet that sets the default logging driver to json-file with max size 10m and max files 3.

Docker

{
  "log-driver": "[1]",
  "log-opts": {
    "max-size": "[2]",
    "max-file": "[3]"
  }
}

Drag options to blanks, or click blank then click option'

Ajson-file

Bjournald

C10m

D3

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'journald' instead of 'json-file' changes the logging system.

Setting max-size or max-file to wrong values causes config errors.

This JSON config sets the Docker daemon to use json-file as the default logging driver, limits log file size to 10m, and keeps 3 rotated files.