From 96deff237677192e95a4908e7f447b7129ec0140 Mon Sep 17 00:00:00 2001 From: Marat Abrarov Date: Sat, 24 Jun 2023 23:07:29 +0300 Subject: [PATCH 1/3] pipeline: outputs: es: support of Upstream Signed-off-by: Marat Abrarov --- .../classic-mode/upstream-servers.md | 1 + pipeline/outputs/elasticsearch.md | 137 ++++++++++++------ 2 files changed, 97 insertions(+), 41 deletions(-) diff --git a/administration/configuring-fluent-bit/classic-mode/upstream-servers.md b/administration/configuring-fluent-bit/classic-mode/upstream-servers.md index 11c95890a..3bc103b45 100644 --- a/administration/configuring-fluent-bit/classic-mode/upstream-servers.md +++ b/administration/configuring-fluent-bit/classic-mode/upstream-servers.md @@ -5,6 +5,7 @@ It's common that Fluent Bit [output plugins](../../pipeline/outputs/) aims to co An _Upstream_ defines a set of nodes that will be targeted by an output plugin, by the nature of the implementation an output plugin **must** support the _Upstream_ feature. The following plugin\(s\) have _Upstream_ support: * [Forward](../../../pipeline/outputs/forward.md) +* [Elasticsearch](../../../pipeline/outputs/elasticsearch.md) The current balancing mode implemented is _round-robin_. diff --git a/pipeline/outputs/elasticsearch.md b/pipeline/outputs/elasticsearch.md index 8f09f678d..3f1f89253 100644 --- a/pipeline/outputs/elasticsearch.md +++ b/pipeline/outputs/elasticsearch.md @@ -10,46 +10,51 @@ operational Elasticsearch service running in your environment. ## Configuration Parameters -| Key | Description | Default | -| :--- | :--- | :--- | -| `Host` | IP address or hostname of the target Elasticsearch instance | `127.0.0.1` | -| `Port` | TCP port of the target Elasticsearch instance | `9200` | -| `Path` | Elasticsearch accepts new data on HTTP query path `/_bulk`. You can also serve Elasticsearch behind a reverse proxy on a sub-path. Define the path by adding a path prefix in the indexing HTTP POST URI. | Empty string | -| `compress` | Set payload compression mechanism. Option available is `gzip`. | _none_ | -| `Buffer_Size` | Specify the buffer size used to read the response from the Elasticsearch HTTP service. Use for debugging purposes where required to read full responses. Response size grows depending of the number of records inserted. To use an unlimited amount of memory, set this value to `False`. Otherwise set the value according to the [Unit Size](../../administration/configuring-fluent-bit/unit-sizes.md). | `512KB` | -| `Pipeline` | Define which pipeline the database should use. For performance reasons, it's strongly suggested to do parsing and filtering on Fluent Bit side, and avoid pipelines. | _none_ | -| `AWS_Auth` | Enable AWS Sigv4 Authentication for Amazon OpenSearch Service. | `Off` | -| `AWS_Region` | Specify the AWS region for Amazon OpenSearch Service. | _none_ | -| `AWS_STS_Endpoint` | Specify the custom STS endpoint to be used with STS API for Amazon OpenSearch Service | _none_ | -| `AWS_Role_ARN` | AWS IAM Role to assume to put records to your Amazon cluster | _none_ | -| `AWS_External_ID` | External ID for the AWS IAM Role specified with `aws_role_arn` | _none_ | -| `AWS_Service_Name` | Service name to use in AWS Sigv4 signature. For integration with Amazon OpenSearch Serverless, set to `aoss`. See [Amazon OpenSearch Serverless](opensearch.md) for more information. | `es` | -| `AWS_Profile` | AWS profile name | `default` | -| `Cloud_ID` | If using Elastic's Elasticsearch Service you can specify the `cloud_id` of the cluster running. The string has the format `:`. Once decoded, the `base64_info` string has the format `$$`. | _none_ | -| `Cloud_Auth` | Specify the credentials to use to connect to Elastic's Elasticsearch Service running on Elastic Cloud | _none_ | -| `HTTP_User` | Optional username credential for Elastic X-Pack access | _none_ | -| `HTTP_Passwd` | Password for user defined in `HTTP_User` | _none_ | -| `Index` | Index name | `fluent-bit` | -| `Type` | Type name | `_doc` | -| `Logstash_Format` | Enable Logstash format compatibility. This option takes a Boolean value: `True/False`, `On/Off` | `Off` | -| `Logstash_Prefix` | When `Logstash_Format` is enabled, the Index name is composed using a prefix and the date, e.g: If `Logstash_Prefix` is equal to `mydata` your index will become `mydata-YYYY.MM.DD`. The last string appended belongs to the date when the data is being generated. | `logstash` | -| `Logstash_Prefix_Key` | When included: the value of the key in the record will be evaluated as key reference and overrides `Logstash_Prefix` for index generation. If the key/value isn't found in the record then the `Logstash_Prefix` option will act as a fallback. The parameter is expected to be a [record accessor](../../administration/configuring-fluent-bit/classic-mode/record-accessor.md). | _none_ | -| `Logstash_Prefix_Separator` | Set a separator between `Logstash_Prefix` and date.| `-` | -| `Logstash_DateFormat` | Time format based on [strftime](http://man7.org/linux/man-pages/man3/strftime.3.html) to generate the second part of the Index name. | `%Y.%m.%d` | -| `Time_Key` | When `Logstash_Format` is enabled, each record will get a new timestamp field. The `Time_Key` property defines the name of that field. | `@timestamp` | -| `Time_Key_Format` | When `Logstash_Format` is enabled, this property defines the format of the timestamp. | `%Y-%m-%dT%H:%M:%S` | -| `Time_Key_Nanos` | When `Logstash_Format` is enabled, enabling this property sends nanosecond precision timestamps. | `Off` | -| `Include_Tag_Key` | When enabled, it append the Tag name to the record. | `Off` | -| `Tag_Key` | When `Include_Tag_Key` is enabled, this property defines the key name for the tag. | `_flb-key` | -| `Generate_ID` | When enabled, generate `_id` for outgoing records. This prevents duplicate records when retrying ES. | `Off` | -| `Id_Key` | If set, `_id` will be the value of the key from incoming record and `Generate_ID` option is ignored. | _none_ | -| `Write_Operation` | `Write_operation` can be any of: `create`, `index`, `update`, `upsert`. | `create` | -| `Replace_Dots` | When enabled, replace field name dots with underscore. Required by Elasticsearch 2.0-2.3. | `Off` | -| `Trace_Output` | Print all ElasticSearch API request payloads to `stdout` for diagnostics. | `Off` | -| `Trace_Error` | If ElasticSearch returns an error, print the ElasticSearch API request and response for diagnostics. | `Off` | -| `Current_Time_Index` | Use current time for index generation instead of message record. | `Off` | -| `Suppress_Type_Name` | When enabled, mapping types is removed and `Type` option is ignored. Elasticsearch 8.0.0 or higher [no longer supports mapping types](https://www.elastic.co/guide/en/elasticsearch/reference/current/removal-of-types.html), and is set to `On`. | `Off` | -| `Workers` | The number of [workers](../../administration/multithreading.md#outputs) to perform flush operations for this output. | `2` | +The **Overridable** column indicates if a key can be overridden in the NODE section of an +[Upstream](../../administration/configuring-fluent-bit/classic-mode/upstream-servers.md) +configuration. + +| Key | Description | Default | Overridable | +| :--- | :--- | :--- | :--- | +| `Host` | IP address or hostname of the target Elasticsearch instance. | `127.0.0.1` | Yes. Default value isn't applicable for NODE section of Upstream configuration, which **requires** Host to be specified. | +| `Port` | TCP port of the target Elasticsearch instance | `9200` | Yes. Default value isn't applicable for NODE section of Upstream configuration, which **requires** Port to be specified. | +| `Path` | Elasticsearch accepts new data on HTTP query path `/_bulk`. You can also serve Elasticsearch behind a reverse proxy on a sub-path. Define the path by adding a path prefix in the indexing HTTP POST URI. | Empty string | Yes | +| `compress` | Set payload compression mechanism. Option available is `gzip`. | _none_ | Yes | +| `Buffer_Size` | Specify the buffer size used to read the response from the Elasticsearch HTTP service. Use for debugging purposes where required to read full responses. Response size grows depending of the number of records inserted. To use an unlimited amount of memory, set this value to `False`. Otherwise set the value according to the [Unit Size](../../administration/configuring-fluent-bit/unit-sizes.md). | `512KB` | Yes | +| `Pipeline` | Define which pipeline the database should use. For performance reasons, it's strongly suggested to do parsing and filtering on Fluent Bit side, and avoid pipelines. | _none_ | Yes | +| `AWS_Auth` | Enable AWS Sigv4 Authentication for Amazon OpenSearch Service. | `Off` | Yes | +| `AWS_Region` | Specify the AWS region for Amazon OpenSearch Service. | _none_ | Yes | +| `AWS_STS_Endpoint` | Specify the custom STS endpoint to be used with STS API for Amazon OpenSearch Service | _none_ | Yes | +| `AWS_Role_ARN` | AWS IAM Role to assume to put records to your Amazon cluster | _none_ | Yes | +| `AWS_External_ID` | External ID for the AWS IAM Role specified with `aws_role_arn` | _none_ | Yes | +| `AWS_Service_Name` | Service name to use in AWS Sigv4 signature. For integration with Amazon OpenSearch Serverless, set to `aoss`. See [Amazon OpenSearch Serverless](opensearch.md) for more information. | `es` | Yes | +| `AWS_Profile` | AWS profile name | `default` | Yes | +| `Cloud_ID` | If using Elastic's Elasticsearch Service you can specify the `cloud_id` of the cluster running. The string has the format `:`. Once decoded, the `base64_info` string has the format `$$`. | _none_ | No | +| `Cloud_Auth` | Specify the credentials to use to connect to Elastic's Elasticsearch Service running on Elastic Cloud | _none_ | Yes | +| `HTTP_User` | Optional username credential for Elastic X-Pack access | _none_ | Yes | +| `HTTP_Passwd` | Password for user defined in `HTTP_User` | _none_ | Yes | +| `Index` | Index name | `fluent-bit` | Yes | +| `Type` | Type name | `_doc` | Yes | +| `Logstash_Format` | Enable Logstash format compatibility. This option takes a Boolean value: `True/False`, `On/Off` | `Off` | Yes | +| `Logstash_Prefix` | When `Logstash_Format` is enabled, the Index name is composed using a prefix and the date, e.g: If `Logstash_Prefix` is equal to `mydata` your index will become `mydata-YYYY.MM.DD`. The last string appended belongs to the date when the data is being generated. | `logstash` | Yes | +| `Logstash_Prefix_Key` | When included: the value of the key in the record will be evaluated as key reference and overrides `Logstash_Prefix` for index generation. If the key/value isn't found in the record then the `Logstash_Prefix` option will act as a fallback. The parameter is expected to be a [record accessor](../../administration/configuring-fluent-bit/classic-mode/record-accessor.md). | _none_ | Yes | +| `Logstash_Prefix_Separator` | Set a separator between `Logstash_Prefix` and date.| `-` | Yes | +| `Logstash_DateFormat` | Time format based on [strftime](http://man7.org/linux/man-pages/man3/strftime.3.html) to generate the second part of the Index name. | `%Y.%m.%d` | Yes | +| `Time_Key` | When `Logstash_Format` is enabled, each record will get a new timestamp field. The `Time_Key` property defines the name of that field. | `@timestamp` | Yes | +| `Time_Key_Format` | When `Logstash_Format` is enabled, this property defines the format of the timestamp. | `%Y-%m-%dT%H:%M:%S` | Yes | +| `Time_Key_Nanos` | When `Logstash_Format` is enabled, enabling this property sends nanosecond precision timestamps. | `Off` | Yes | +| `Include_Tag_Key` | When enabled, it append the Tag name to the record. | `Off` | Yes | +| `Tag_Key` | When `Include_Tag_Key` is enabled, this property defines the key name for the tag. | `_flb-key` | Yes | +| `Generate_ID` | When enabled, generate `_id` for outgoing records. This prevents duplicate records when retrying ES. | `Off` | Yes | +| `Id_Key` | If set, `_id` will be the value of the key from incoming record and `Generate_ID` option is ignored. | _none_ | Yes | +| `Write_Operation` | `Write_operation` can be any of: `create`, `index`, `update`, `upsert`. | `create` | Yes | +| `Replace_Dots` | When enabled, replace field name dots with underscore. Required by Elasticsearch 2.0-2.3. | `Off` | Yes | +| `Trace_Output` | Print all ElasticSearch API request payloads to `stdout` for diagnostics. | `Off` | Yes | +| `Trace_Error` | If ElasticSearch returns an error, print the ElasticSearch API request and response for diagnostics. | `Off` | Yes | +| `Current_Time_Index` | Use current time for index generation instead of message record. | `Off` | Yes | +| `Suppress_Type_Name` | When enabled, mapping types is removed and `Type` option is ignored. Elasticsearch 8.0.0 or higher [no longer supports mapping types](https://www.elastic.co/guide/en/elasticsearch/reference/current/removal-of-types.html), and is set to `On`. | `Off` | Yes | +| `Workers` | The number of [workers](../../administration/multithreading.md#outputs) to perform flush operations for this output. | `2` | No | +| `Upstream` | If plugin will connect to an _Upstream_ instead of a simple host, this property defines the absolute path for the Upstream configuration file, for more details about this refer to the [Upstream Servers](../../administration/configuring-fluent-bit/classic-mode/upstream-servers.md) documentation section. | _none_ | No | If you have used a common relational database, the parameters `index` and `type` can be compared to the `database` and `table` concepts. @@ -59,6 +64,16 @@ be compared to the `database` and `table` concepts. The Elasticsearch output plugin supports TLS/SSL. For more details about the properties available and general configuration, see [TLS/SSL](../../administration/transport-security.md). +### AWS Sigv4 Authentication and Upstream Servers + +The `http_proxy`, `no_proxy`, and `TLS` parameters used for AWS Sigv4 Authentication +(for connection of plugin to AWS to generate authentication signature) are never +picked from the `NODE` section of the +[Upstream](../../administration/configuring-fluent-bit/classic-mode/upstream-servers.md) +configuration. However, `TLS` parameters for connection of the plugin to +Elasticsearch **can** be overridden in the `NODE` section of Upstream, even if AWS +authentication is used. + ### `write_operation` The `write_operation` can be any of: @@ -112,7 +127,7 @@ fluent-bit -i cpu -t cpu -o es -p Host=192.168.2.3 -p Port=9200 \ In your main configuration file append the following `Input` and `Output` sections. -```python +```text [INPUT] Name cpu Tag cpu @@ -128,6 +143,46 @@ In your main configuration file append the following `Input` and `Output` sectio ![example configuration visualization from Calyptia](../../.gitbook/assets/image%20%282%29.png) +### Configuration File with Upstream + +In your main configuration file append the following _Input_ & _Output_ sections: + +```text +[INPUT] + Name cpu + Tag cpu + +[OUTPUT] + Name es + Match * + Upstream ./upstream.conf + Index my_index + Type my_type +``` + +Your [Upstream Servers](../../administration/configuring-fluent-bit/classic-mode/upstream-servers.md) +configuration file can be similar to the following: + +```text +[UPSTREAM] + name es-balancing + +[NODE] + name node-1 + host localhost + port 9201 + +[NODE] + name node-2 + host localhost + port 9202 + +[NODE] + name node-3 + host localhost + port 9203 +``` + ## About Elasticsearch field names Some input plugins can generate messages where the field names contains dots. For From fc683d520f1b4bd1f9e1493f2839995a06735080 Mon Sep 17 00:00:00 2001 From: Marat Abrarov Date: Fri, 25 Oct 2024 06:37:15 +0300 Subject: [PATCH 2/3] pipeline: outputs: es: formatting of "Description" column Signed-off-by: Marat Abrarov --- pipeline/outputs/elasticsearch.md | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) diff --git a/pipeline/outputs/elasticsearch.md b/pipeline/outputs/elasticsearch.md index 3f1f89253..e88c020e2 100644 --- a/pipeline/outputs/elasticsearch.md +++ b/pipeline/outputs/elasticsearch.md @@ -17,28 +17,28 @@ configuration. | Key | Description | Default | Overridable | | :--- | :--- | :--- | :--- | | `Host` | IP address or hostname of the target Elasticsearch instance. | `127.0.0.1` | Yes. Default value isn't applicable for NODE section of Upstream configuration, which **requires** Host to be specified. | -| `Port` | TCP port of the target Elasticsearch instance | `9200` | Yes. Default value isn't applicable for NODE section of Upstream configuration, which **requires** Port to be specified. | +| `Port` | TCP port of the target Elasticsearch instance. | `9200` | Yes. Default value isn't applicable for NODE section of Upstream configuration, which **requires** Port to be specified. | | `Path` | Elasticsearch accepts new data on HTTP query path `/_bulk`. You can also serve Elasticsearch behind a reverse proxy on a sub-path. Define the path by adding a path prefix in the indexing HTTP POST URI. | Empty string | Yes | | `compress` | Set payload compression mechanism. Option available is `gzip`. | _none_ | Yes | | `Buffer_Size` | Specify the buffer size used to read the response from the Elasticsearch HTTP service. Use for debugging purposes where required to read full responses. Response size grows depending of the number of records inserted. To use an unlimited amount of memory, set this value to `False`. Otherwise set the value according to the [Unit Size](../../administration/configuring-fluent-bit/unit-sizes.md). | `512KB` | Yes | | `Pipeline` | Define which pipeline the database should use. For performance reasons, it's strongly suggested to do parsing and filtering on Fluent Bit side, and avoid pipelines. | _none_ | Yes | | `AWS_Auth` | Enable AWS Sigv4 Authentication for Amazon OpenSearch Service. | `Off` | Yes | | `AWS_Region` | Specify the AWS region for Amazon OpenSearch Service. | _none_ | Yes | -| `AWS_STS_Endpoint` | Specify the custom STS endpoint to be used with STS API for Amazon OpenSearch Service | _none_ | Yes | -| `AWS_Role_ARN` | AWS IAM Role to assume to put records to your Amazon cluster | _none_ | Yes | -| `AWS_External_ID` | External ID for the AWS IAM Role specified with `aws_role_arn` | _none_ | Yes | +| `AWS_STS_Endpoint` | Specify the custom STS endpoint to be used with STS API for Amazon OpenSearch Service. | _none_ | Yes | +| `AWS_Role_ARN` | AWS IAM Role to assume to put records to your Amazon cluster. | _none_ | Yes | +| `AWS_External_ID` | External ID for the AWS IAM Role specified with `aws_role_arn`. | _none_ | Yes | | `AWS_Service_Name` | Service name to use in AWS Sigv4 signature. For integration with Amazon OpenSearch Serverless, set to `aoss`. See [Amazon OpenSearch Serverless](opensearch.md) for more information. | `es` | Yes | -| `AWS_Profile` | AWS profile name | `default` | Yes | +| `AWS_Profile` | AWS profile name. | `default` | Yes | | `Cloud_ID` | If using Elastic's Elasticsearch Service you can specify the `cloud_id` of the cluster running. The string has the format `:`. Once decoded, the `base64_info` string has the format `$$`. | _none_ | No | -| `Cloud_Auth` | Specify the credentials to use to connect to Elastic's Elasticsearch Service running on Elastic Cloud | _none_ | Yes | -| `HTTP_User` | Optional username credential for Elastic X-Pack access | _none_ | Yes | -| `HTTP_Passwd` | Password for user defined in `HTTP_User` | _none_ | Yes | -| `Index` | Index name | `fluent-bit` | Yes | -| `Type` | Type name | `_doc` | Yes | -| `Logstash_Format` | Enable Logstash format compatibility. This option takes a Boolean value: `True/False`, `On/Off` | `Off` | Yes | +| `Cloud_Auth` | Specify the credentials to use to connect to Elastic's Elasticsearch Service running on Elastic Cloud. | _none_ | Yes | +| `HTTP_User` | Optional username credential for Elastic X-Pack access. | _none_ | Yes | +| `HTTP_Passwd` | Password for user defined in `HTTP_User`. | _none_ | Yes | +| `Index` | Index name. | `fluent-bit` | Yes | +| `Type` | Type name. | `_doc` | Yes | +| `Logstash_Format` | Enable Logstash format compatibility. This option takes a Boolean value: `True/False`, `On/Off`. | `Off` | Yes | | `Logstash_Prefix` | When `Logstash_Format` is enabled, the Index name is composed using a prefix and the date, e.g: If `Logstash_Prefix` is equal to `mydata` your index will become `mydata-YYYY.MM.DD`. The last string appended belongs to the date when the data is being generated. | `logstash` | Yes | | `Logstash_Prefix_Key` | When included: the value of the key in the record will be evaluated as key reference and overrides `Logstash_Prefix` for index generation. If the key/value isn't found in the record then the `Logstash_Prefix` option will act as a fallback. The parameter is expected to be a [record accessor](../../administration/configuring-fluent-bit/classic-mode/record-accessor.md). | _none_ | Yes | -| `Logstash_Prefix_Separator` | Set a separator between `Logstash_Prefix` and date.| `-` | Yes | +| `Logstash_Prefix_Separator` | Set a separator between `Logstash_Prefix` and date. | `-` | Yes | | `Logstash_DateFormat` | Time format based on [strftime](http://man7.org/linux/man-pages/man3/strftime.3.html) to generate the second part of the Index name. | `%Y.%m.%d` | Yes | | `Time_Key` | When `Logstash_Format` is enabled, each record will get a new timestamp field. The `Time_Key` property defines the name of that field. | `@timestamp` | Yes | | `Time_Key_Format` | When `Logstash_Format` is enabled, this property defines the format of the timestamp. | `%Y-%m-%dT%H:%M:%S` | Yes | From 2d9ae77e5e21829b26304d6f664e2732d199fa7f Mon Sep 17 00:00:00 2001 From: Marat Abrarov Date: Thu, 29 Aug 2024 16:49:47 +0300 Subject: [PATCH 3/3] pipeline: outputs: es: re-phrasing and re-wording, grammar fixes based on review comments. Signed-off-by: Marat Abrarov --- pipeline/outputs/elasticsearch.md | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/pipeline/outputs/elasticsearch.md b/pipeline/outputs/elasticsearch.md index e88c020e2..ec0a631f9 100644 --- a/pipeline/outputs/elasticsearch.md +++ b/pipeline/outputs/elasticsearch.md @@ -29,30 +29,30 @@ configuration. | `AWS_External_ID` | External ID for the AWS IAM Role specified with `aws_role_arn`. | _none_ | Yes | | `AWS_Service_Name` | Service name to use in AWS Sigv4 signature. For integration with Amazon OpenSearch Serverless, set to `aoss`. See [Amazon OpenSearch Serverless](opensearch.md) for more information. | `es` | Yes | | `AWS_Profile` | AWS profile name. | `default` | Yes | -| `Cloud_ID` | If using Elastic's Elasticsearch Service you can specify the `cloud_id` of the cluster running. The string has the format `:`. Once decoded, the `base64_info` string has the format `$$`. | _none_ | No | +| `Cloud_ID` | If using Elastic's Elasticsearch Service you can specify the `cloud_id` of the cluster running. The string has the format `:`. After decoding, the `base64_info` string has the format `$$`. | _none_ | No | | `Cloud_Auth` | Specify the credentials to use to connect to Elastic's Elasticsearch Service running on Elastic Cloud. | _none_ | Yes | | `HTTP_User` | Optional username credential for Elastic X-Pack access. | _none_ | Yes | | `HTTP_Passwd` | Password for user defined in `HTTP_User`. | _none_ | Yes | | `Index` | Index name. | `fluent-bit` | Yes | | `Type` | Type name. | `_doc` | Yes | | `Logstash_Format` | Enable Logstash format compatibility. This option takes a Boolean value: `True/False`, `On/Off`. | `Off` | Yes | -| `Logstash_Prefix` | When `Logstash_Format` is enabled, the Index name is composed using a prefix and the date, e.g: If `Logstash_Prefix` is equal to `mydata` your index will become `mydata-YYYY.MM.DD`. The last string appended belongs to the date when the data is being generated. | `logstash` | Yes | -| `Logstash_Prefix_Key` | When included: the value of the key in the record will be evaluated as key reference and overrides `Logstash_Prefix` for index generation. If the key/value isn't found in the record then the `Logstash_Prefix` option will act as a fallback. The parameter is expected to be a [record accessor](../../administration/configuring-fluent-bit/classic-mode/record-accessor.md). | _none_ | Yes | +| `Logstash_Prefix` | When `Logstash_Format` is enabled, the Index name is composed using a prefix and the date, For example, if `Logstash_Prefix` is equal to `mydata`, your index becomes `mydata-YYYY.MM.DD`. The last string appended belongs to the date when the data is being generated. | `logstash` | Yes | +| `Logstash_Prefix_Key` | When included: the value of the key in the record will be evaluated as key reference and overrides `Logstash_Prefix` for index generation. If the key/value isn't found in the record, the `Logstash_Prefix` option will act as a fallback. The parameter is expected to be a [record accessor](../../administration/configuring-fluent-bit/classic-mode/record-accessor.md). | _none_ | Yes | | `Logstash_Prefix_Separator` | Set a separator between `Logstash_Prefix` and date. | `-` | Yes | | `Logstash_DateFormat` | Time format based on [strftime](http://man7.org/linux/man-pages/man3/strftime.3.html) to generate the second part of the Index name. | `%Y.%m.%d` | Yes | -| `Time_Key` | When `Logstash_Format` is enabled, each record will get a new timestamp field. The `Time_Key` property defines the name of that field. | `@timestamp` | Yes | +| `Time_Key` | When `Logstash_Format` is enabled, each record gets a new timestamp field. The `Time_Key` property defines the name of that field. | `@timestamp` | Yes | | `Time_Key_Format` | When `Logstash_Format` is enabled, this property defines the format of the timestamp. | `%Y-%m-%dT%H:%M:%S` | Yes | | `Time_Key_Nanos` | When `Logstash_Format` is enabled, enabling this property sends nanosecond precision timestamps. | `Off` | Yes | | `Include_Tag_Key` | When enabled, it append the Tag name to the record. | `Off` | Yes | | `Tag_Key` | When `Include_Tag_Key` is enabled, this property defines the key name for the tag. | `_flb-key` | Yes | | `Generate_ID` | When enabled, generate `_id` for outgoing records. This prevents duplicate records when retrying ES. | `Off` | Yes | -| `Id_Key` | If set, `_id` will be the value of the key from incoming record and `Generate_ID` option is ignored. | _none_ | Yes | +| `Id_Key` | If set, `_id` is the value of the key from incoming record, and `Generate_ID` option is ignored. | _none_ | Yes | | `Write_Operation` | `Write_operation` can be any of: `create`, `index`, `update`, `upsert`. | `create` | Yes | | `Replace_Dots` | When enabled, replace field name dots with underscore. Required by Elasticsearch 2.0-2.3. | `Off` | Yes | | `Trace_Output` | Print all ElasticSearch API request payloads to `stdout` for diagnostics. | `Off` | Yes | | `Trace_Error` | If ElasticSearch returns an error, print the ElasticSearch API request and response for diagnostics. | `Off` | Yes | | `Current_Time_Index` | Use current time for index generation instead of message record. | `Off` | Yes | -| `Suppress_Type_Name` | When enabled, mapping types is removed and `Type` option is ignored. Elasticsearch 8.0.0 or higher [no longer supports mapping types](https://www.elastic.co/guide/en/elasticsearch/reference/current/removal-of-types.html), and is set to `On`. | `Off` | Yes | +| `Suppress_Type_Name` | When enabled, mapping types is removed and `Type` option is ignored. Elasticsearch 8.0.0 or later [doesn't support mapping types](https://www.elastic.co/guide/en/elasticsearch/reference/current/removal-of-types.html), which requires this value to be `On`. | `Off` | Yes | | `Workers` | The number of [workers](../../administration/multithreading.md#outputs) to perform flush operations for this output. | `2` | No | | `Upstream` | If plugin will connect to an _Upstream_ instead of a simple host, this property defines the absolute path for the Upstream configuration file, for more details about this refer to the [Upstream Servers](../../administration/configuring-fluent-bit/classic-mode/upstream-servers.md) documentation section. | _none_ | No | @@ -125,7 +125,7 @@ fluent-bit -i cpu -t cpu -o es -p Host=192.168.2.3 -p Port=9200 \ ### Configuration File -In your main configuration file append the following `Input` and `Output` sections. +In your main configuration file append the following `Input` and `Output` sections: ```text [INPUT] @@ -145,7 +145,7 @@ In your main configuration file append the following `Input` and `Output` sectio ### Configuration File with Upstream -In your main configuration file append the following _Input_ & _Output_ sections: +In your main configuration file append the following `Input` and `Output` sections: ```text [INPUT]