telegraf/plugins/inputs/dovecot/README.md

Dovecot Input Plugin

The dovecot plugin uses the dovecot Stats protocol to gather metrics on configured domains. You can read Dovecot's documentation here

Configuration:

# Read metrics about docker containers
[[inputs.dovecot]]
  # Dovecot Endpoint
  #   To use TCP, set endpoint = "tcp://[ip]:[port]"
  #   To use environment variables (ie, docker-machine), set endpoint = "ENV"
  endpoint = "unix:///var/run/docker.sock"
  # Only collect metrics for these domains, collect all if empty
  domains_names = []

Fields:

domain                 string
reset_timestamp        time.Time
last_update            time.Time
num_logins             int
num_cmds               int
num_connected_sessions int
user_cpu               float32
sys_cpu                float32
clock_time             float64
min_faults             int
maj_faults             int
vol_cs                 int
invol_cs               int
disk_input             int
disk_output            int
read_count             int
read_bytes             int
write_count            int
write_bytes            int
mail_lookup_path       int
mail_lookup_attr       int
mail_read_count        int
mail_read_bytes        int
mail_cache_hits        int

Example Output:

% ./telegraf -config ~/ws/telegraf.conf -input-filter docker -test
* Plugin: docker, Collection 1