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We now have a process for OSH-images image building, using Zuul, so we should point the images by default to those images, instead of pointing to stale images. Without this, the osh-images build process is completely not in use (and completely opaque to deployers), and updating the osh-images process or patching its code has no impact on OSH. This should fix it. Change-Id: Ic00bd98c151669dc2485cd88e0e8c2ab05445959
Fluentd-logging =============== OpenStack-Helm defines a centralized logging mechanism to provide insight into the state of the OpenStack services and infrastructure components as well as underlying kubernetes platform. Among the requirements for a logging platform, where log data can come from and where log data need to be delivered are very variable. To support various logging scenarios, OpenStack-Helm should provide a flexible mechanism to meet with certain operation needs. This chart proposes fast and lightweight log forwarder and full featured log aggregator complementing each other providing a flexible and reliable solution. Especially, Fluent-bit is proposed as a log forwarder and Fluentd is proposed as a main log aggregator and processor. Mechanism --------- Fluent-bit, Fluentd meet OpenStack-Helm's logging requirements for gathering, aggregating, and delivering of logged events. Flunt-bit runs as a daemonset on each node and mounts the /var/lib/docker/containers directory. The Docker container runtime engine directs events posted to stdout and stderr to this directory on the host. Fluent-bit then forward the contents of that directory to Fluentd. Fluentd runs as deployment at the designated nodes and expose service for Fluent-bit to foward logs. Fluentd should then apply the Logstash format to the logs. Fluentd can also write kubernetes and OpenStack metadata to the logs. Fluentd will then forward the results to Elasticsearch and to optionally kafka. Elasticsearch indexes the logs in a logstash-* index by default. kafka stores the logs in a 'logs' topic by default. Any external tool can then consume the 'logs' topic.