Using multiple AWS Accounts for deploy

We just started using GitLab CI and currently we use different AWS accounts to separate our dev and prod environments. Thus far I haven’t been able to configure my runner to respect my AWS access key and secret access key credentials that are different for my two environments. Everything has been really easy to use except being able to upload to multiple AWS accounts. If anyone has an advice on this it would be much appreciated. My use case is really simple I’m just uploading a tarball to an s3 bucket one for dev and one for prod and I’m using the secret environment variables to store my keys for the separate environments. This is my config:

stages:
  - build
  - deploy
variables:
  ARTIFACT_NAME: my-cookbook.tgz
  DEV_BUCKET: dev-account-devops
  PROD_BUCKET: prod-account-devops
  S3_PATH: elk/${ARTIFACT_NAME}-${CI_BUILD_ID}-${CI_BUILD_REF}
package:
  stage: build
  script: git archive --format tgz HEAD > $ARTIFACT_NAME
  artifacts:
    untracked: true
    expire_in: 1 week
deploy_development:
  stage: deploy
  script:
   - export AWS_ACCESS_KEY=$DEV_AWS_ACCESS_KEY
   - export AWS_SECRET_ACCESS_KEY=$DEV_SECRET_ACCESS_KEY
   - aws s3 cp $ARTIFACT_NAME s3://$DEV_BUCKET/$S3_PATH
  environment: development
deploy_production:
  stage: deploy
  script:
   - export AWS_ACCESS_KEY=$PROD_AWS_ACCESS_KEY
   - export AWS_SECRET_ACCESS_KEY=$PROD_SECRET_ACCESS_KEY
   - aws s3 cp $ARTIFACT_NAME s3://$PROD_BUCKET/$S3_PATH
  environment: production
  when: manual
  only:
  - master

Actually I figured out my own issue, the export for the aws access key had a typo and was missing the last bit, it should be AWS_ACCESS_KEY_ID not AWS_ACCESS_KEY.