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Terraform AWS Lambda Function Deployment scenarios with 'ResourceConflictException'

👀 Views: 139 đŸ’Ŧ Answers: 1 📅 Created: 2025-06-08
aws terraform lambda Terraform

Hey everyone, I'm running into an issue that's driving me crazy... I've been banging my head against this for hours. I'm working on a personal project and I'm trying to deploy an AWS Lambda function using Terraform, but I'm working with a `ResourceConflictException` behavior during the deployment. The behavior message states: `The function already exists. Retry after a few minutes.` I've confirmed that there's no existing Lambda function with the same name in the specified region but the behavior continues. Here's the relevant snippet of my Terraform configuration: ```hcl resource "aws_lambda_function" "my_lambda" { function_name = "my_unique_lambda_function" handler = "index.handler" runtime = "nodejs14.x" role = aws_iam_role.my_lambda_role.arn source_code_hash = filebase64sha256("./function.zip") filename = "./function.zip" } resource "aws_iam_role" "my_lambda_role" { name = "my_lambda_role" assume_role_policy = jsonencode({ Version = "2012-10-17" Statement = [ { Action = "sts:AssumeRole" Principal = { Service = "lambda.amazonaws.com" } Effect = "Allow" Sid = "" } ] }) } ``` I've made sure to update the function's code in `function.zip` and run `terraform apply`, but I still face the same behavior. I also tried adding a `depends_on` attribute to manage the deployment order, which did not help. Furthermore, I've checked the AWS console, and there are no temporary versions of the function that could be causing the conflict. I am using Terraform version 1.0.0 and the AWS provider version 3.41.0. Any insights or suggestions on how to resolve this scenario would be greatly appreciated! I'm working on a web app that needs to handle this. Am I missing something obvious? I'm working with Terraform in a Docker container on Ubuntu 20.04. Is there a better approach? This is part of a larger desktop app I'm building. I appreciate any insights!