S3 publisher

This plugin helps one to upload build artifacts to Amazon S3.

Making artifacts public

If you'd like to have some of your artifacts be publicly downloadable, see Granting public access to some S3 objects


When activated, traditional (Freestyle) Jenkins builds will have a build action called S3 Copy Artifact for downloading artifacts, and a post-build action called Publish Artifacts to S3 Bucket.

For Pipeline users, the same two actions are available via the s3CopyArtifact and s3Upload step. You can use the snippet generator to get started.

When using an Amazon S3 compatible storage system (OpenStack Swift, EMC Atmos...), the list of AWS regions can be overridden by specifying a file classpath://com/amazonaws/partitions/override/endpoints.json matching the format defined in AWS SDK's endpoints.json.

A solution to add this endpoints.json file in the classpath of Jenkins is to use the java command line parameter -Xbootclasspath/a:/path/to/boot/classpath/folder/ and to locate com/amazonaws/partitions/override/endpoints.json in /path/to/boot/classpath/folder/.

Even if most of the features of the Jenkins S3 Plugin require the user to specify the target region, some feature rely on a default Amazon S3 region which is by default the "US Standard Amazon S3 Region" and its endpoint is s3.amazonaws.com. This default region can be overridden with the system property hudson.plugins.s3.DEFAULT_AMAZON_S3_REGION. Note that this default region name MUST match with a region define in the AWS SDK configuration file endpoints.json (see above).

Usage with IAM

If you used IAM to create a separate pair of access credentials for this plugin, you can lock down its AWS access to simply listing buckets and writing to a specific bucket. Add the following custom policy to the user in the IAM console, replacing occurrences of "my-artifact-bucket" with your bucket name, which you'll have to create first:

  "Statement": [
      "Action": [
      "Effect": "Allow",
      "Resource": "arn:aws:s3:::*"
      "Action": "s3:*",
      "Effect": "Allow",
      "Resource": ["arn:aws:s3:::my-artifact-bucket", "arn:aws:s3:::my-artifact-bucket/*"]


  • Only the basename of source files is used as the object key name, an option to include the path name relative to the workspace should probably be added.