[Bug]: Bedrock Agent instruction is mandatory

[jeremychauvet]

Terraform Core Version

1.9.8

AWS Provider Version

5.76.0

Affected Resource(s)

• aws_bedrockagent_agent

Expected Behavior

Following actual resource documentation, the following instructions are mandatory:

• agent_name - (Required) Name of the agent.

• agent_resource_role_arn - (Required) ARN of the IAM role with permissions to invoke API operations on the agent.

• foundation_model - (Required) Foundation model used for orchestration by the agent.

Actual Behavior

Trying to create the resource with this code result to an error:

resource "aws_bedrockagent_agent" "demo" {
  agent_name                     = "my-agent-name"
  agent_resource_role_arn  = aws_iam_role.example.arn
  foundation_model            = "anthropic.claude-v2"
}

Error:

│ Error: creating Agent
│
│   with aws_bedrockagent_agent.demo,
│   on agent.tf line 46, in resource "aws_bedrockagent_agent" "demo":
│   46: resource "aws_bedrockagent_agent" "demo" {
│
│ waiting for Bedrock Agent (3TTM4DCSXX) prepare: unexpected state 'FAILED', wanted target 'PREPARED'. last error: Exception: Agent Instruction cannot be null

Relevant Error/Panic Output Snippet

No response

Terraform Configuration Files

data "aws_caller_identity" "current" {}

data "aws_partition" "current" {}

data "aws_region" "current" {}

data "aws_iam_policy_document" "example_agent_trust" {
  statement {
    actions = ["sts:AssumeRole"]
    principals {
      identifiers = ["bedrock.amazonaws.com"]
      type        = "Service"
    }
    condition {
      test     = "StringEquals"
      values   = [data.aws_caller_identity.current.account_id]
      variable = "aws:SourceAccount"
    }
    condition {
      test     = "ArnLike"
      values   = ["arn:${data.aws_partition.current.partition}:bedrock:${data.aws_region.current.name}:${data.aws_caller_identity.current.account_id}:agent/*"]
      variable = "AWS:SourceArn"
    }
  }
}

data "aws_iam_policy_document" "example_agent_permissions" {
  statement {
    actions = ["bedrock:InvokeModel"]
    resources = [
      "arn:${data.aws_partition.current.partition}:bedrock:${data.aws_region.current.name}::foundation-model/anthropic.claude-v2",
    ]
  }
}

resource "aws_iam_role" "example" {
  assume_role_policy = data.aws_iam_policy_document.example_agent_trust.json
  name_prefix        = "AmazonBedrockExecutionRoleForAgents_"
}

resource "aws_iam_role_policy" "example" {
  policy = data.aws_iam_policy_document.example_agent_permissions.json
  role   = aws_iam_role.example.id
}

resource "aws_bedrockagent_agent" "demo" {
  agent_name              = "my-agent-name"
  agent_resource_role_arn = aws_iam_role.example.arn
  foundation_model        = "anthropic.claude-v2"
}

Steps to Reproduce

1.  terraform init
2. terraform plan
3. terraform apply

Debug Output

No response

Panic Output

No response

Important Factoids

No response

References

No response

Would you like to implement a fix?

Yes

[github-actions[bot]]

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