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The file service discovery plugin updates the targets by reading the local file. YAML and JSON are the allowed file formats.

Example Configuration

Here is an example with out_forward updating targets by sending data:
<match pattern>
@type forward
​
<service_discovery>
@type file
path "/etc/fluentd/sd.yaml"
</service_discovery>
</source>
Here is an example of target list file (/etc/fluentd/sd.yaml):
- 'host': 127.0.0.1
'port': 24224
'weight': 1
'name': server1
- 'host': 127.0.0.1
'port': 24225
'weight': 1
'name': server2

Parameters

@type

The value must be file.

path

type
default
version
string
'/etc/fluent/sd.yaml'
1.8.0
The path of the target list.
The Content-Type is determined by file extension i.e.:
  • YAML: yaml, yml
  • JSON: json

conf_encoding

type
default
version
string
'utf-8'
1.8.0
The encoding of the configuration file.

Parameters in Target List File

Each target has following parameters:
  • host
  • name
  • port
  • shared_key
  • username
  • password
  • standby
  • weight

host

type
default
version
string
nil
1.8.0
The IP address or hostname of the server. It is a required parameter.

port

type
default
version
integer
​
1.8.0
The port number of the host. It is a required parameter.

name

type
default
version
string
nil
1.8.0
The name of the server.

shared_key

type
default
version
string
nil
1.8.0
The shared key per server.

username

type
default
version
string
nil
1.8.0
The username for authentication.

password

type
default
version
string
nil
1.8.0
The password for authentication.

standby

type
default
version
bool
nil
1.8.0

weight

type
default
version
integer
60
1.8.0
If this article is incorrect or outdated, or omits critical information, please let us know. Fluentd is an open-source project under Cloud Native Computing Foundation (CNCF). All components are available under the Apache 2 License.
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