This tracks everything related to Docker, including containers, images, volumes, service definition, and secrets. To use docker-latest client, uncomment below line Default is /var/lib/docker/tmpĬan be overriden by setting the following environment variable.Ĭontrols the /etc/cron.daily/docker-logrotate cron job status.ĭocker-latest daemon can be used by starting the docker-latest unitfile. Location used for temporary files, such as those created byĭocker load and build operations. Setsebool -P docker_transition_unconfined 1 On an SELinux system, if you remove the -selinux-enabled option, youĪlso need to turn on the docker_transition_unconfined boolean.
#ACCESS DOCKER DAEMON LOGS FULL#
If you have a registry secured with https but do not have proper certsĭistributed, you can tell docker to not look for full authorization byĪdding the registry to the INSECURE_REGISTRY line and uncommenting it. For example adding docker.io will stop users from downloading images Option and give it a set of registries, each prepended with -block-registryįlag. If you want to block registries from being used, uncomment the BLOCK_REGISTRY The first registry added will be the first registryĪDD_REGISTRY='-add-registry -add-registry -add-registry :5000' Pull use the ADD_REGISTRY option to list a set of registries, each prepended If you want to add your own registry to be used for docker search and docker OPTIONS='-selinux-enabled -log-driver=journald -log-opt max-size=50m -log-opt max-file=5' Modify these options if you want to change the way the docker daemon runs Package version: docker-common-1.10.86_64 On a CentOS Atomic Host (CAH), the maximum size is not honored by log]# cat /etc/redhat-releaseĬentOS Linux release log]# cat /etc/redhat-releaseĬentOS Linux release log]# docker version # du -aSh /var/lib/docker/ | sort -h -r | head -n 10 # cat /dev/null > $(docker inspect -format=' \ | sort -h -r | head -20 # cat /dev/null > /var/lib/docker/containers/CONTAINER_ID/CONTAINER_ID-json.log If there is already a log file already present on the host that needs to be removed, run the following to clear its contents and reduce its size. Restart docker service for the changes to take effect.OPTIONS='-insecure-registry=172.30.0.0/16 -signature-verification=false -selinux-enabled -log-opt max-size=50m -log-opt max-file=5' To set log limits for containers on a host -log-opt can be configured with max-size and max-file so that a containers logs are rolled over when they reach a max limit and only a certain number of files are saved before being discarded.See Docker Logging Documentation for more information on what can be set. A log file can grow so large that it fills up the disk space if the container runs for long enough and generate enough logs. Container logs by default are not configured to be rotated or limited to a max size by docker.With OpenShift 3 I am seeing that docker is filling up space on /var/lib/docker.