Gitlab Object Storage use_iam_role

Bug

Description

Unable to use IAM role with gitlab object storage

provide the following for the object storage values

objectStorage:
      type: "s3"
      endpoint: "s3.<region>.<host>"
      region: <region>
      bucketPrefix: "minio"
      iamProfile: true

the chart will still include the accesskey and secretkey with empty values and no use_iam_profile.

BigBang Version

What version of BigBang were you running? 1.17.0

for each element in the yaml (rails,registry and backup) we need to check if the iamProfile is set.

      {{- if hasKey .Values.addons.gitlab.objectStorage "iamProfile" }}
      iam_profile: true
      {{- end}}
      {{- if hasKey .Values.addons.gitlab.objectStorage "accessKey" }}
      aws_access_key_id: {{ .Values.addons.gitlab.objectStorage.accessKey }}
      aws_secret_access_key: {{ .Values.addons.gitlab.objectStorage.accessSecret }}
      {{- end }}