krotim.blogg.se - Docker syslog size

#DOCKER SYSLOG SIZE UPGRADE#

In my particular case, the amount of logs we generate is around 1TB a month due to the size of the cluster, and the resource allocation for that single pod to work with that amount of logs was significant.

You're more comfortable distributing the load from log traffic to a cluster-wide DaemonSet instead of having rkubelog fetch and send everything from a single pod.

You're not allowed to create Cluster Role bindings in the cluster you're working on.

This is a short list of the scenarios in which rkubelog might not be the proper shoe size for your cluster: I found, though, that this doesn't fit every need. apiGroups: # "" indicates the core API group This is a single deployment component that fetches logs from the available Kubernetes API resource via a cluster role: They all relied on the Docker runtime to grab logs and send them to a syslog server. Loggly, Papertrail, and Syslog destinations using DaemonSets workloads like Logspout were all impacted.

No outages, no missing information.īut for those users relying on a third-party logging solution, changing to containerd would break the integration. Behind the scenes, the monitoring agents were upgraded along with the clusters to start using containerd as a source for logs. If you would deploy a new cluster in version 1.20, you wouldn't notice that something has changed. With this, their native tooling to export logs to their own logging services was properly migrated.

#DOCKER SYSLOG SIZE UPGRADE#

Most cloud providers of Kubernetes (GKE, EKS, or AKS) managed this upgrade by defaulting the new cluster's runtime to containerd. A small sentence in the blog article calls out that a critical component would be affected: logging.ĭocker was not the only container runtime at the time of this change. Although this change didn't affect the core functionality of Kubernetes, or how pods work in their clusters, there were users that relied on resources provided by the Docker engine. You might have heard that starting version 1.20, Docker is no longer the container runtime in Kubernetes.