Ignore CodeBuild artifacts when using CodePipeline

Question

Is it possible to have a CodePipeline CodeBuild action that does not produce artifacts?

It seems like that's the default behaviour, and by default, it will use `**/*` as the artifact, which effectively is "the entire source code."

I am building a Docker image and publishing it to ECR, which is my "artifact" (although it's not a file on disk).

I know I can trick CodeBuild and feed it some useless files as an artifact, but I wanted to know if there's a clean way to disable artifacts.

Riku_Kobayashi · Answer

I couldn't write it all in the comments, so I'll make a new post, but I have CodePipeline set up as follows.  
Is your build stage's "outputArtifacts" an empty list?  
```
aws codepipeline get-pipeline --name ecr
{
    "pipeline": {
        "name": "ecr",
        "roleArn": "arn:aws:iam::111111111111:role/service-role/AWSCodePipelineServiceRole-ap-northeast-1-ecr",
        "artifactStore": {
            "type": "S3",
            "location": "codepipeline-ap-northeast-1-xxxxxxxxxxxx"
        },
        "stages": [
            {
                "name": "Source",
                "actions": [
                    {
                        "name": "Source",
                        "actionTypeId": {
                            "category": "Source",
                            "owner": "AWS",
                            "provider": "CodeCommit",
                            "version": "1"
                        },
                        "runOrder": 1,
                        "configuration": {
                            "BranchName": "main",
                            "OutputArtifactFormat": "CODE_ZIP",
                            "PollForSourceChanges": "false",
                            "RepositoryName": "ecr"
                        },
                        "outputArtifacts": [
                            {
                                "name": "SourceArtifact"
                            }
                        ],
                        "inputArtifacts": [],
                        "region": "ap-northeast-1",
                        "namespace": "SourceVariables"
                    }
                ]
            },
            {
                "name": "Build",
                "actions": [
                    {
                        "name": "Build",
                        "actionTypeId": {
                            "category": "Build",
                            "owner": "AWS",
                            "provider": "CodeBuild",
                            "version": "1"
                        },
                        "runOrder": 1,
                        "configuration": {
                            "ProjectName": "ecr"
                        },
                        "outputArtifacts": [],
                        "inputArtifacts": [
                            {
                                "name": "SourceArtifact"
                            }
                        ],
                        "region": "ap-northeast-1",
                        "namespace": "BuildVariables"
                    }
                ]
            }
        ],
        "version": 2,
        "executionMode": "QUEUED",
        "pipelineType": "V2"
    },
    "metadata": {
        "pipelineArn": "arn:aws:codepipeline:ap-northeast-1:1111111111:ecr",
        "created": "2024-10-04T13:01:09.134000+00:00",
        "updated": "2024-10-04T13:01:40.586000+00:00"
    }
}
```
The CodeBuild settings are as follows.  
```
aws codebuild batch-get-projects --names ecr
{
    "projects": [
        {
            "name": "ecr",
            "arn": "arn:aws:codebuild:ap-northeast-1:11111111111:project/ecr",
            "source": {
                "type": "CODECOMMIT",
                "location": "https://git- codecommit.ap-northeast-1.amazonaws.com/v1/repos/ecr",
                "gitCloneDepth": 1,
                "gitSubmodulesConfig": {
                    "fetchSubmodules": false
                },
                "buildspec": "buildspec.yml",
                "insecureSsl": false
            },
            "secondarySources": [],
            "sourceVersion": "refs/heads/main",
            "secondarySourceVersions": [],
            "artifacts": {
                "type": "NO_ARTIFACTS"
            },
            "secondaryArtifacts": [],
            "cache": {
                "type": "NO_CACHE"
            },
            "environment": {
                "type": "LINUX_CONTAINER",
                "image": "aws/codebuild/amazonlinux2-x86_64-standard:5.0",
                "computeType": "BUILD_GENERAL1_SMALL",
                "environmentVariables": [],
                "privilegedMode": false,
                "imagePullCredentialsType": "CODEBUILD"
            },
            "serviceRole": "arn:aws:iam::111111111111:role/service-role/codebuild-ecr-service-role",
            "timeoutInMinutes": 60,
            "queuedTimeoutInMinutes": 480,
            "encryptionKey": "arn:aws:kms:ap-northeast-1:111111111111:alias/aws/s3",
            "tags": [],
            "created": "2024-10-04T12:47:21.640000+00:00",
            "lastModified": "2024-10-04T12:47:21.640000+00:00",
            "badge": {
                "badgeEnabled": false
            },
            "logsConfig": {
                "cloudWatchLogs": {
                    "status": "ENABLED"
                },
                "s3Logs": {
                    "status": "DISABLED",
                    "encryptionDisabled": false
                }
            },
            "projectVisibility": "PRIVATE"
        }
    ],
    "projectsNotFound": []
}
```

Riku_Kobayashi · Answer

Hello.

As described in the document below, "artifacts" in buildspec.yml should not be necessary when building Docker containers.  
Will artifacts be uploaded to S3 even if I delete "artifacts" in buildspec.yml?  
https://docs.aws.amazon.com/codebuild/latest/userguide/build-spec-ref.html#build-spec.artifacts  
> Optional sequence. Represents information about where CodeBuild can find the build output and how CodeBuild prepares it for uploading to the S3 output bucket. This sequence is not required if, for example, you are building and pushing a Docker image to Amazon ECR, or you are running unit tests on your source code, but not building it.

Also, why not try leaving the output artifact blank in CodePipeline's build phase settings?  
By the way, when deploying to ECS in the deployment phase, I think that the deployment would fail if there was no "imagedefinitions.json" in the output artifact.  
https://docs.aws.amazon.com/codepipeline/latest/userguide/ecs-cd-pipeline.html  
![a](/media/postImages/original/IMkvLx53QGQ2qdgEZV-LqIiA)

Ignore CodeBuild artifacts when using CodePipeline

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