Daniel Dao e5b6bfa94f add whitelisted env as container metadata ... This add Envs to container spec as a metadata source. When using prometheus exposition format, they will be merged into the list of metrics' labels. Also changed the cli flag to docker_env_metadata_whitelist, and add refenrences of whitelist envs to API Signed-off-by: Daniel Dao <dqminh@cloudflare.com>		2016-01-13 11:22:13 +00:00
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prometheus_metrics	add whitelisted env as container metadata	2016-01-13 11:22:13 +00:00