redpanda_migrator_offsets

Reads consumer group offsets for a specified set of topics using the Franz Kafka client library.

Introduced in version 4.45.0.

  • Common

  • Advanced

# Common configuration fields, showing default values
input:
  label: ""
  redpanda_migrator_offsets:
    seed_brokers: [] # No default (required)
    topics: [] # No default (required)
    regexp_topics: false
    consumer_group: "" # No default (optional)
    auto_replay_nacks: true
# All configuration fields, showing default values
input:
  label: ""
  redpanda_migrator_offsets:
    seed_brokers: [] # No default (required)
    client_id: benthos
    tls:
      enabled: false
      skip_cert_verify: false
      enable_renegotiation: false
      root_cas: ""
      root_cas_file: ""
      client_certs: []
    sasl: [] # No default (optional)
    metadata_max_age: 5m
    topics: [] # No default (required)
    regexp_topics: false
    rack_id: ""
    consumer_group: "" # No default (optional)
    commit_period: 5s
    partition_buffer_bytes: 1MB
    topic_lag_refresh_period: 5s
    auto_replay_nacks: true

Metadata

This input adds the following metadata fields to each message:

  • kafka_key

  • kafka_topic

  • kafka_partition

  • kafka_offset

  • kafka_timestamp_unix

  • kafka_timestamp_ms

  • kafka_tombstone_message

  • kafka_offset_topic

  • kafka_offset_group

  • kafka_offset_partition

  • kafka_offset_commit_timestamp

  • kafka_offset_metadata

  • kafka_is_high_watermark

Fields

auto_replay_nacks

Whether to automatically replay messages that are rejected (nacked) at the output level. If the cause of rejections is persistent, leaving this option enabled can result in back pressure.

Set auto_replay_nacks to false to delete rejected messages. Disabling auto replays can greatly improve memory efficiency of high throughput streams, as the original shape of the data is discarded immediately upon consumption and mutation.

Type: bool

Default: true

client_id

An identifier for the client connection.

Type: string

Default: benthos

conn_idle_timeout

The rough amount of time to allow connections to idle before they are closed.

Type: string

Default: 20s

metadata_max_age

The maximum period of time (in minutes) after which metadata is refreshed.

Type: string

Default: 5m

poll_interval

Duration between OffsetFetch polling attempts.

Type: string

Default: 15s

rack_id

A rack specifies where the client is physically located, and changes fetch requests to consume from the closest replica as opposed to the leader replica.

Type: string

Default: ""

regexp_topics

Whether listed topics are interpreted as regular expression patterns for matching multiple topics. When topics are specified with explicit partitions, this field must remain set to false.

Type: bool

Default: false

request_timeout_overhead

The request time overhead. Uses the given time as overhead while deadlining requests. Roughly equivalent to request.timeout.ms, but grants additional time to requests that have timeout fields.

Type: string

Default: 10s

sasl[]

Specify one or more methods of SASL authentication, which are attempted in order. If the broker supports the first mechanism, all connections use that mechanism. If the first mechanism fails, the client picks the first supported mechanism. Connections fail if the broker does not support any client mechanisms.

Type: object

# Examples:
sasl:
  - mechanism: SCRAM-SHA-512
    password: bar
    username: foo

sasl[].aws

Contains AWS specific fields for when the mechanism is set to AWS_MSK_IAM.

Type: object

sasl[].aws.credentials

Optional manual configuration of AWS credentials to use. More information can be found in Amazon Web Services.

Type: object

sasl[].aws.credentials.from_ec2_role

Use the credentials of a host EC2 machine configured to assume an IAM role associated with the instance.

Requires version 4.2.0 or later.

Type: bool

sasl[].aws.credentials.id

The ID of credentials to use.

Type: string

sasl[].aws.credentials.profile

A profile from ~/.aws/credentials to use.

Type: string

sasl[].aws.credentials.role

A role ARN to assume.

Type: string

sasl[].aws.credentials.role_external_id

An external ID to provide when assuming a role.

Type: string

sasl[].aws.credentials.secret

The secret for the credentials being used.

This field contains sensitive information that usually shouldn’t be added to a configuration directly. For more information, see Secrets.

Type: string

sasl[].aws.credentials.token

The token for the credentials being used, required when using short term credentials.

Type: string

sasl[].aws.endpoint

Allows you to specify a custom endpoint for the AWS API.

Type: string

sasl[].aws.region

The AWS region to target.

Type: string

sasl[].extensions

Key/value pairs to add to OAUTHBEARER authentication requests.

Type: string

sasl[].mechanism

The SASL mechanism to use.

Type: string

Option Summary

AWS_MSK_IAM

AWS IAM based authentication as specified by the 'aws-msk-iam-auth' java library.

OAUTHBEARER

OAuth Bearer based authentication.

PLAIN

Plain text authentication.

SCRAM-SHA-256

SCRAM based authentication as specified in RFC5802.

SCRAM-SHA-512

SCRAM based authentication as specified in RFC5802.

none

Disable sasl authentication

sasl[].password

A password to provide for PLAIN or SCRAM-* authentication.

This field contains sensitive information that usually shouldn’t be added to a configuration directly. For more information, see Secrets.

Type: string

Default: ""

sasl[].token

The token to use for a single session’s OAUTHBEARER authentication.

Type: string

Default: ""

sasl[].username

A username to provide for PLAIN or SCRAM-* authentication.

Type: string

Default: ""

seed_brokers[]

A list of broker addresses to connect to. Use commas to separate multiple addresses in a single list item.

Type: array

# Examples:
seed_brokers:
  - "localhost:9092"

  - "foo:9092"
  - "bar:9092"

  - "foo:9092,bar:9092"

tls

Override system defaults with custom TLS settings.

Type: object

tls.client_certs[]

A list of client certificates to use. For each certificate, specify values for either the cert and key, or cert_file and key_file fields.

Type: object

Default: []

# Examples:
client_certs:
  - cert: foo
    key: bar

  - cert_file: ./example.pem
    key_file: ./example.key

tls.client_certs[].cert

A plain text certificate to use.

Type: string

Default: ""

tls.client_certs[].cert_file

The path of a certificate to use.

Type: string

Default: ""

tls.client_certs[].key

A plain text certificate key to use.

This field contains sensitive information that usually shouldn’t be added to a configuration directly. For more information, see Secrets.

Type: string

Default: ""

tls.client_certs[].key_file

The path of a certificate key to use.

Type: string

Default: ""

tls.client_certs[].password

A plain text password for when the private key is password encrypted in PKCS#1 or PKCS#8 format. The obsolete pbeWithMD5AndDES-CBC algorithm is not supported for the PKCS#8 format.

Because the obsolete pbeWithMD5AndDES-CBC algorithm does not authenticate the ciphertext, it is vulnerable to padding oracle attacks that can let an attacker recover the plaintext.

This field contains sensitive information that usually shouldn’t be added to a configuration directly. For more information, see Secrets.

Type: string

Default: ""

# Examples:
password: foo
password: ${KEY_PASSWORD}

tls.enable_renegotiation

Whether to allow the remote server to repeatedly request renegotiation. Enable this option if you’re seeing the error message local error: tls: no renegotiation.

Requires version 3.45.0 or later.

Type: bool

Default: false

tls.enabled

Whether custom TLS settings are enabled.

Type: bool

Default: false

tls.root_cas

Specify a certificate authority to use (optional). This is a string that represents a certificate chain from the parent-trusted root certificate, through possible intermediate signing certificates, to the host certificate.

This field contains sensitive information that usually shouldn’t be added to a configuration directly. For more information, see Secrets.

Type: string

Default: ""

# Examples:
root_cas: |-
  -----BEGIN CERTIFICATE-----
  ...
  -----END CERTIFICATE-----

tls.root_cas_file

Specify the path to a root certificate authority file (optional). This is a file, often with a .pem extension, which contains a certificate chain from the parent-trusted root certificate, through possible intermediate signing certificates, to the host certificate.

Type: string

Default: ""

# Examples:
root_cas_file: ./root_cas.pem

tls.skip_cert_verify

Whether to skip server-side certificate verification.

Type: bool

Default: false

topics[]

A list of topics to consume from. Use commas to separate multiple topics in a single element.

When a consumer_group is specified, partitions are automatically distributed across consumers of a topic. Otherwise, all partitions are consumed.

Alternatively, you can specify explicit partitions to consume by using a colon after the topic name. For example, foo:0 would consume the partition 0 of the topic foo. This syntax supports ranges. For example, foo:0-10 would consume partitions 0 through to 10 inclusive.

It is also possible to specify an explicit offset to consume from by adding another colon after the partition. For example, foo:0:10 would consume the partition 0 of the topic foo starting from the offset 10. If the offset is not present (or remains unspecified) then the field start_from_oldest determines which offset to start from.

Type: array

# Examples:
topics:
  - foo
  - bar

  - things.*

  - "foo,bar"