Host and Port: This parameter specifies the host and port of the OpenSearch instance. This should be specified as a URI string in the format http://hostname:port or https://hostname:port. For example, you might set it to https://localhost:9200.

Authentication Types:

1. Basic Authentication

• Username: Username to connect to OpenSearch required when Basic Authentication is enabled on OpenSearch.
• Password: Password of the user account to connect with OpenSearch.

2. IAM based Authentication

• AWS Access Key ID & AWS Secret Access Key: When you interact with AWS, you specify your AWS security credentials to verify who you are and whether you have permission to access the resources that you are requesting. AWS uses the security credentials to authenticate and authorize your requests (docs).

  Access keys consist of two parts: An access key ID (for example, AKIAIOSFODNN7EXAMPLE), and a secret access key (for example, wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY).

  You must use both the access key ID and secret access key together to authenticate your requests.

  You can find further information on how to manage your access keys here.

• AWS Region: Each AWS Region is a separate geographic area in which AWS clusters data centers (docs).

  As AWS can have instances in multiple regions, we need to know the region the service you want reach belongs to.

  Note that the AWS Region is the only required parameter when configuring a connection. When connecting to the services programmatically, there are different ways in which we can extract and use the rest of AWS configurations.

  You can find further information about configuring your credentials here.

• AWS Session Token (optional): If you are using temporary credentials to access your services, you will need to inform the AWS Access Key ID and AWS Secrets Access Key. Also, these will include an AWS Session Token.

  You can find more information on Using temporary credentials with AWS resources.

• Endpoint URL (optional): To connect programmatically to an AWS service, you use an endpoint. An endpoint is the URL of the entry point for an AWS web service. The AWS SDKs and the AWS Command Line Interface (AWS CLI) automatically use the default endpoint for each service in an AWS Region. But you can specify an alternate endpoint for your API requests.

  Find more information on AWS service endpoints.

• Profile Name: A named profile is a collection of settings and credentials that you can apply to a AWS CLI command. When you specify a profile to run a command, the settings and credentials are used to run that command. Multiple named profiles can be stored in the config and credentials files.

  You can inform this field if you'd like to use a profile other than default.

  Find here more information about Named profiles for the AWS CLI.

• Assume Role Arn: Typically, you use AssumeRole within your account or for cross-account access. In this field you'll set the ARN (Amazon Resource Name) of the policy of the other account.

  A user who wants to access a role in a different account must also have permissions that are delegated from the account administrator. The administrator must attach a policy that allows the user to call AssumeRole for the ARN of the role in the other account.

  This is a required field if you'd like to AssumeRole.

  Find more information on AssumeRole.

• Assume Role Session Name: An identifier for the assumed role session. Use the role session name to uniquely identify a session when the same role is assumed by different principals or for different reasons.

  By default, we'll use the name OpenMetadataSession.

  Find more information about the Role Session Name.

• Assume Role Source Identity: The source identity specified by the principal that is calling the AssumeRole operation. You can use source identity information in AWS CloudTrail logs to determine who took actions with a role.

  Find more information about Source Identity.

Verify SSL: Client SSL verification. Make sure to configure the SSLConfig if enabled. Possible values:

• validate: Validate the certificate using the public certificate (recommended).
• ignore: Ignore the certification validation (not recommended for production).
• no-ssl: SSL validation is not needed.

SSL Certificates:

1. SSL Certificates By Path

• CA Certificate Path: This field specifies the path of CA certificate required for authentication.
• Client Certificate Path: This field specifies the path of Clint certificate required for authentication.
• Private Key Path: This field specifies the path of Clint Key/Private Key required for authentication.

2. SSL Certificates By Value

• CA Certificate Value: This field specifies the value of CA certificate required for authentication.

• Client Certificate Value: This field specifies the value of Clint certificate required for authentication.

• Private Key Value: This field specifies the value of Clint Key/Private Key required for authentication.

• Staging Directory Path: This field specifies the path to temporary staging directory, where the certificates will be stored temporarily during the ingestion process, which will de deleted once the ingestion job is over.

• when you are using this approach make sure you are passing the key in a correct format. If your certificate looks like this:

  You will have to replace new lines with \n and the final value that you need to pass should look like this:

Connection Timeout in Seconds: Connection timeout configuration for communicating with OpenSearch APIs.

• Include: Explicitly include search index by adding a list of comma-separated regular expressions to the Include field. OpenMetadata will include all search indexes with names matching one or more of the supplied regular expressions. All other schemas will be excluded.
• Exclude: Explicitly exclude search index by adding a list of comma-separated regular expressions to the Exclude field. OpenMetadata will exclude all search indexes with names matching one or more of the supplied regular expressions. All other schemas will be included.