Add support of `tag`, `env` and `labels` for Splunk logging driver. Removed from message `containerId` as it is the same as `tag`. Signed-off-by: Denis Gladkikh <denis@gladkikh.email>
Signed-off-by: Kun Zhang <zkazure@gmail.com>
Allow to send Splunk logs using Http Event Collector Signed-off-by: Denis Gladkikh <denis@gladkikh.email>