120 lines
3.6 KiB
HCL
120 lines
3.6 KiB
HCL
data "aws_ami" "explorer" {
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most_recent = true
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filter {
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name = "name"
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values = ["amzn2-ami-*-x86_64-gp2"]
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}
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filter {
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name = "virtualization-type"
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values = ["hvm"]
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}
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filter {
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name = "owner-alias"
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values = ["amazon"]
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}
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}
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resource "aws_launch_configuration" "explorer" {
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name_prefix = "${var.prefix}-explorer-launchconfig-"
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image_id = "${data.aws_ami.explorer.id}"
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instance_type = "${var.instance_type}"
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security_groups = ["${aws_security_group.app.id}"]
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key_name = "${var.key_name}"
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iam_instance_profile = "${aws_iam_instance_profile.explorer.id}"
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associate_public_ip_address = false
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depends_on = ["aws_db_instance.default"]
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user_data = "${file("${path.module}/libexec/init.sh")}"
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lifecycle {
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create_before_destroy = true
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}
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}
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resource "aws_placement_group" "explorer" {
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count = "${length(var.chains)}"
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name = "${var.prefix}-explorer-placement-group${count.index}"
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strategy = "cluster"
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}
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resource "aws_autoscaling_group" "explorer" {
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count = "${length(var.chains)}"
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name = "${aws_launch_configuration.explorer.name}-asg${count.index}"
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max_size = "${length(var.chains) * 4}"
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min_size = "${length(var.chains)}"
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desired_capacity = "${length(var.chains)}"
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placement_group = "${aws_placement_group.explorer.*.id[count.index]}"
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launch_configuration = "${aws_launch_configuration.explorer.name}"
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vpc_zone_identifier = ["${aws_subnet.default.id}"]
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availability_zones = ["${data.aws_availability_zones.available.names}"]
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load_balancers = ["${aws_elb.explorer.*.name[count.index]}"]
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# Health checks are performed by CodeDeploy hooks
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health_check_type = "EC2"
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enabled_metrics = [
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"GroupMinSize",
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"GroupMaxSize",
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"GroupDesiredCapacity",
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"GroupInServiceInstances",
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"GroupTotalInstances",
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]
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depends_on = [
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"aws_ssm_parameter.new_relic_app_name",
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"aws_ssm_parameter.new_relic_license_key",
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"aws_ssm_parameter.pool_size",
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"aws_ssm_parameter.ecto_use_ssl",
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"aws_ssm_parameter.exq_blocks_concurrency",
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"aws_ssm_parameter.exq_concurrency",
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"aws_ssm_parameter.exq_internal_transactions_concurrency",
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"aws_ssm_parameter.exq_receipts_concurrency",
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"aws_ssm_parameter.exq_transactions_concurrency",
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"aws_ssm_parameter.secret_key_base",
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"aws_ssm_parameter.port",
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"aws_ssm_parameter.db_username",
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"aws_ssm_parameter.db_password",
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"aws_ssm_parameter.db_host",
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"aws_ssm_parameter.db_port",
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"aws_ssm_parameter.ethereum_url",
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"aws_ssm_parameter.trace_url",
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]
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lifecycle {
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create_before_destroy = true
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}
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tag {
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key = "prefix"
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value = "${var.prefix}"
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propagate_at_launch = true
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}
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tag {
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key = "chain"
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value = "${element(keys(var.chains),count.index)}"
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propagate_at_launch = true
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}
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}
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# TODO: These autoscaling policies are not currently wired up to any triggers
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resource "aws_autoscaling_policy" "explorer-up" {
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name = "${var.prefix}-explorer-autoscaling-policy-up"
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autoscaling_group_name = "${aws_autoscaling_group.explorer.name}"
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adjustment_type = "ChangeInCapacity"
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scaling_adjustment = 1
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cooldown = 300
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}
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resource "aws_autoscaling_policy" "explorer-down" {
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name = "${var.prefix}-explorer-autoscaling-policy-down"
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autoscaling_group_name = "${aws_autoscaling_group.explorer.name}"
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adjustment_type = "ChangeInCapacity"
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scaling_adjustment = -1
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cooldown = 300
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}
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