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Logging

Experimental work in progress.

Logging with Fluentd and Elastiscsearch

To enable logging of the stdout and stderr output of every Docker container in a Kubernetes cluster set the shell environment variables ENABLE_NODE_LOGGING to true and LOGGING_DESTINATION to elasticsearch.

e.g. in bash:

export ENABLE_NODE_LOGGING=true
export LOGGING_DESTINATION=elasticsearch

This will instantiate a Fluentd instance on each node which will collect all the Dcoker container log files. The collected logs will be targetted at an Elasticsearch instance assumed to be running on the local node and accepting log information on port 9200. This can be accomplished by writing a pod specification and service specification to define an Elasticsearch service (more information to follow shortly in the contrib directory).

Logging with Fluentd and Google Compute Platform

To enable logging of Docker contains in a cluster using Google Compute Platform set the config flags ENABLE_NODE_LOGGING to true and LOGGING_DESTINATION to gcp.