es_conf.toml

# source config
[src]
hosts = "127.0.0.1:27017" # hostportstr of a member of replica set
authdb = "admin"
username = "yourusername"
password = "yourpassword"

# destination config
[dst]
type = "es"
hosts = [
    "your_es_host1:9200",
    "your_es_host2:9200",
    "your_es_host3:9200",
    "your_es_host4:9200",
    "your_es_host5:9200"
]

# sync config
[sync]

# sync database "test0"
[[sync.dbs]]
db = "test0"

# sync database (test1 => test11)
[[sync.dbs]]
db = "test1"
rename_db = "test11"

# sync collections (test2.coll0 => test22.coll0, test2.coll1 => test22.coll1)
[[sync.dbs]]
db = "test2"
rename_db = "test22"
colls = [ "coll0", "coll1" ]

# sync collections with specfied fields
[[sync.dbs]]
db = "test3"
rename_db = "test33"
colls = [
    { coll = "coll2", fields = [ "f0", "f1" ] },
    { coll = "coll3", fields = [ "f2", "f3" ] }
]

# log config
[log]
filepath = "sync.log" # write to stdout if empty or not set