Log Providers

• instance : the optional container name, that allows you to request logs from a specific function instance
• since : the optional datetime value to start the logs from
• tail : sets the maximum number of log messages to return, <=0 means unlimited

• faas-netes : the official Kubernetes function provider also provides logs by directly querying the Kubernetes cluster API
• faas-swarm : the official Swarm function provider also provides logs by directly querying the Swarm cluster API
• openfaas-loki : a community-developed provider, uses to collection and query the function logs