Remove multipart configs if AWS_BACKUP_MULTIPART_CHUNK_SIZE is not set

Author: drubin

assets/runtime/config/gitlabhq/gitlab.yml

@@ -512,9 +512,11 @@ production: &base
         aws_secret_access_key: '{{AWS_BACKUP_SECRET_ACCESS_KEY}}'
       # The remote 'directory' to store your backups. For S3, this would be the bucket name.
       remote_directory: '{{AWS_BACKUP_BUCKET}}'
+      #start-aws-multipart
       # Use multipart uploads when file size reaches 100MB, see
-      #  http://docs.aws.amazon.com/AmazonS3/latest/dev/uploadobjusingmpu.html
+      # http://docs.aws.amazon.com/AmazonS3/latest/dev/uploadobjusingmpu.html
       multipart_chunk_size: {{AWS_BACKUP_MULTIPART_CHUNK_SIZE}}
+      #end-aws-multipart
     #   # Turns on AWS Server-Side Encryption with Amazon S3-Managed Keys for backups, this is optional
     #   # encryption: 'AES256'
       # Fog storage connection settings, see http://fog.io/storage/ .

assets/runtime/env-defaults

@@ -157,7 +157,7 @@ AWS_BACKUP_PATH_STYLE=${AWS_BACKUP_PATH_STYLE:-false}
 AWS_BACKUP_ACCESS_KEY_ID=${AWS_BACKUP_ACCESS_KEY_ID}
 AWS_BACKUP_SECRET_ACCESS_KEY=${AWS_BACKUP_SECRET_ACCESS_KEY}
 AWS_BACKUP_BUCKET=${AWS_BACKUP_BUCKET}
-AWS_BACKUP_MULTIPART_CHUNK_SIZE=${AWS_BACKUP_MULTIPART_CHUNK_SIZE:-104857600}
+AWS_BACKUP_MULTIPART_CHUNK_SIZE=${AWS_BACKUP_MULTIPART_CHUNK_SIZE}
 
 ### GCS BACKUPS
 GCS_BACKUPS=${GCS_BACKUPS:-false}

assets/runtime/functions

@@ -786,6 +786,11 @@ gitlab_configure_backups_aws() {
     exec_as_git sed -i "/#start-aws/d" ${GITLAB_CONFIG}
     exec_as_git sed -i "/#end-aws/d" ${GITLAB_CONFIG}
 
+    # Remove multipart config if we don't have it configured
+    if [[ -z ${AWS_BACKUP_MULTIPART_CHUNK_SIZE} ]]; then
+      exec_as_git sed -i "/#start-aws-multipart/,/#end-aws-multipart/d" ${GITLAB_CONFIG}
+    fi
+
     if [[ -z ${AWS_BACKUP_REGION} && -z ${AWS_BACKUP_ENDPOINT} ]]; then
       echo "\nMissing AWS region or endpoint. Aborting...\n"
       return 1