explicitly state aws_region var

playbooks/roles/aws/defaults/main.yml

@@ -43,7 +43,7 @@ aws_app_dir: "{{ COMMON_APP_DIR }}/aws"
 aws_s3_sync_script: "{{ aws_app_dir }}/send-logs-to-s3"
 aws_s3_logfile: "{{ aws_log_dir }}/s3-log-sync.log"
 aws_log_dir: "{{ COMMON_LOG_DIR }}/aws"
-
+aws_region: "us-east-1"
 # default path to the aws binary
 aws_cmd: "{{ COMMON_BIN_DIR }}/s3cmd"
 #

playbooks/roles/aws/templates/send-logs-to-s3.j2

@@ -63,7 +63,7 @@ s3_path=unset
 onerror() {
   if [[ -z $noop ]]; then
     message_file=/var/tmp/message-$$.json
-    message_string="Error syncing $s3_path: inst_id=$instance_id ip=$ip region={{ region }}"
+    message_string="Error syncing $s3_path: inst_id=$instance_id ip=$ip region={{ aws_region }}"
     if [[ -r "{{ aws_s3_logfile }}" ]]; then
       python -c "import json; d={'Subject':{'Data':'$message_string'},'Body':{'Text':{'Data':open('"{{ aws_s3_logfile }}"').read()}}};print json.dumps(d)" > $message_file
     else