MySQL config.

services/mysql.hcl

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+job "mysql" {
+  datacenters = ["alo"]
+
+  group "db" {
+    network {
+      port "db" {
+        static = 3306
+      }
+      port "exporter" {
+      }
+    }
+
+    task "mysqld" {
+      driver = "docker"
+
+      config {
+        image = "mysql:8.1"
+        ports = ["db"]
+        volumes = [ "/data/compute/appdata/mysql:/var/lib/mysql" ]
+      }
+
+      env {
+        MYSQL_ROOT_PASSWORD = "${var.mysql_root_password}"
+      }
+
+      service {
+        name = "mysql"
+        port = "db"
+        check {
+          type = "tcp"
+          port = "db"
+          interval = "30s"
+          timeout = "2s"
+        }
+      }
+
+      resources {
+        cpu = 1000
+        memory = 512
+      }
+    }
+
+    task "exporter" {
+      driver = "docker"
+
+      config {
+        image = "prom/mysqld-exporter"
+        ports = ["exporter"]
+        args = [
+          "--mysqld.address=mysql.service.consul:3306",
+          "--mysqld.username=exporter:Veeng0Yei5haesheagai",
+          "--web.listen-address=0.0.0.0:${NOMAD_PORT_exporter}",
+        ]
+      }
+
+      service {
+        name = "mysql-exporter"
+        port = "exporter"
+        tags = ["metrics"]
+      }
+    }
+  }
+}
+
+variable "mysql_root_password" {
+  type = string
+  default = "wiochohv8foR9eDo5ol5"
+}