docker-logs

# https://www.youtube.com/watch?v=pDQzadfUfpE

docker run --log-opt max-size=20m --log-opt max-file=10 myapp:latest

# https://hub.docker.com/r/linkyard/logrotate

Simply mount a directory with your logs into the container at /logs and optionally configure some logrotation features with the following environment variables:

LOGROTATE_FILE_PATTERN (default: *.log): File pattern within the /logs directory for logs to be rotated by logrotate

LOGROTATE_TRUNCATE (default: copytruncate): Truncation behaviour of logrotate, use either copytruncate or nocopytruncate

LOGROTATE_COMPRESS (default: nocompress): Compression behaviour for rotated files, use either nocompress or compress

LOGROTATE_ROTATE (default: 5): The rotate option of logrotate

LOGROTATE_SIZE (default 50M): the size option of logrotate


docker run \
  -v /path/to/my/logs:/logs \
  -e LOGROTATE_FILE_PATTERN="*.log" \
  # don't rotate at all but truncate logs when they exceed the configured rotation size
  -e LOGROTATE_ROTATE="0" \
  # run logrotate every 5 minutes
  -e LOGROTATE_CRON="*/5 0 0 0 0" \
  linkyard:logrotate