Merge pull request futurice#31 from jre21:update_aurora

commit aa8999193a9b85f38b553fd3525a784e56e56597
Author: Jacob Emmert-Aronson <jacob@mlaronson.com>
Date:   Mon May 31 16:05:24 2021 -0700

    Restrict aurora to three availability zones

    Some AWS regions now have four or more availability zones, but it's an
    error to pass more than three to aurora's cluster configuration.

commit afaced2f93d18eb71516c626cebc85859885cbd4
Author: Jacob Emmert-Aronson <jacob@mlaronson.com>
Date:   Mon May 31 16:04:23 2021 -0700

    Update aurora to mysql 5.7

Author: peterkc

aws/wordpress_fargate/db.tf

@@ -5,12 +5,12 @@ resource "random_string" "snapshot_suffix" {
 
 resource "aws_rds_cluster" "this" {
   cluster_identifier      = "${var.prefix}-${var.environment}"
-  engine                  = "aurora"
+  engine                  = "aurora-mysql"
   engine_mode             = "serverless"
   vpc_security_group_ids  = [aws_security_group.db.id]
   db_subnet_group_name    = aws_db_subnet_group.this.name
   engine_version          = var.db_engine_version
-  availability_zones      = data.aws_availability_zones.this.names
+  availability_zones      = slice(data.aws_availability_zones.this.names, 0, 3)
   database_name           = "wordpress"
   master_username         = var.db_master_username
   master_password         = var.db_master_password

aws/wordpress_fargate/variables.tf

@@ -79,7 +79,7 @@ variable "db_master_password" {
 }
 variable "db_engine_version" {
   description = "The database engine version"
-  default     = "5.6.10a"
+  default     = "5.7.mysql_aurora.2.07.1"
 }
 variable "db_auto_pause" {
   description = "Whether to enable auto pause"