resource "oci_monitoring_alarm" "cpu_consumption_compute_alarm" {
  compartment_id        = var.ocid_compartment_app
  metric_compartment_id = var.ocid_compartment_app
  destinations          = [var.topic_apps]
  display_name          = "servers-cpu-consumption-${var.environment}"
  namespace             = "oci_computeagent"
  query                 = "CpuUtilization[1m].mean() > 75"
  severity              = "CRITICAL"
  is_enabled            = true

  alarm_summary      = "Compute CPU utilization is above 75%."
  notification_title = "SEI Compute CPU Alert"
  body               = "CPU utilization for instance {{dimensions.resourceDisplayName}} exceeded 75% for five minutes. Current metric value: {{metricValues}}."

  is_notifications_per_metric_dimension_enabled = true
  message_format                                = "ONS_OPTIMIZED"
  metric_compartment_id_in_subtree              = true
  notification_version                          = "1.X"
  pending_duration                              = "PT5M"
  repeat_notification_duration                  = "PT1H"
  resolution                                    = "1m"
  rule_name                                     = "high-cpu-consumption-alarm"
}

resource "oci_monitoring_alarm" "memory_consumption_compute_alarm" {
  compartment_id        = var.ocid_compartment_app
  metric_compartment_id = var.ocid_compartment_app
  destinations          = [var.topic_apps]
  display_name          = "servers-memory-consumption-${var.environment}"
  namespace             = "oci_computeagent"
  query                 = "MemoryUtilization[1m].mean() > 80"
  severity              = "CRITICAL"
  is_enabled            = true

  alarm_summary      = "Compute memory utilization is above 80%."
  notification_title = "SEI Compute Memory Alert"
  body               = "Memory utilization for instance {{dimensions.resourceDisplayName}} exceeded 80% for five minutes. Current metric value: {{metricValues}}."

  is_notifications_per_metric_dimension_enabled = true
  message_format                                = "ONS_OPTIMIZED"
  metric_compartment_id_in_subtree              = true
  notification_version                          = "1.X"
  pending_duration                              = "PT5M"
  repeat_notification_duration                  = "PT1H"
  resolution                                    = "1m"
  rule_name                                     = "high-memory-consumption-alarm"
}

resource "oci_monitoring_alarm" "instance_health_alarm" {
  compartment_id        = var.ocid_compartment_app
  metric_compartment_id = var.ocid_compartment_app
  destinations          = [var.topic_apps]
  display_name          = "servers-instances-status-${var.environment}"
  namespace             = "oci_compute_infrastructure_health"
  query                 = "instance_status[1m].count() == 1"
  severity              = "CRITICAL"
  is_enabled            = true

  alarm_summary      = "A Compute instance is degraded."
  notification_title = "SEI Compute Instance Degraded"
  body               = "SEI Apps instance {{dimensions.resourceDisplayName}} is degraded. Current metric value: {{metricValues}}."

  is_notifications_per_metric_dimension_enabled = true
  message_format                                = "ONS_OPTIMIZED"
  metric_compartment_id_in_subtree              = true
  notification_version                          = "1.X"
  pending_duration                              = "PT5M"
  repeat_notification_duration                  = "PT1H"
  resolution                                    = "1m"
  rule_name                                     = "instance-health-alarm"
}

resource "oci_monitoring_alarm" "maintenance_instance_alarm" {
  compartment_id        = var.ocid_compartment_app
  metric_compartment_id = var.ocid_compartment_app
  destinations          = [var.topic_apps]
  display_name          = "servers-maintenance-status-${var.environment}"
  namespace             = "oci_compute_infrastructure_health"
  query                 = "maintenance_status[1m].count() == 1"
  severity              = "CRITICAL"
  is_enabled            = true

  alarm_summary      = "OCI scheduled maintenance is detected for a Compute instance."
  notification_title = "SEI Compute Maintenance Alert"
  body               = "SEI Apps instance {{dimensions.resourceDisplayName}} will undergo scheduled maintenance by OCI. Current metric value: {{metricValues}}."

  is_notifications_per_metric_dimension_enabled = true
  message_format                                = "ONS_OPTIMIZED"
  metric_compartment_id_in_subtree              = true
  notification_version                          = "1.X"
  pending_duration                              = "PT5M"
  repeat_notification_duration                  = "PT1H"
  resolution                                    = "1m"
  rule_name                                     = "instance-maintenance"
}

resource "oci_monitoring_alarm" "mysql_cpu_consumption" {
  compartment_id        = var.ocid_compartment_database
  metric_compartment_id = var.ocid_compartment_database
  destinations          = [var.topic_database]
  display_name          = "mysql-consumption-cpu-${var.environment}"
  namespace             = "oci_mysql_database"
  query                 = "CPUUtilization[1m].mean() > 75"
  severity              = "CRITICAL"
  is_enabled            = true

  alarm_summary      = "MySQL CPU utilization is above 75%."
  notification_title = "SEI MySQL CPU Alert"
  body               = "MySQL instance {{dimensions.resourceDisplayName}} CPU utilization exceeded 75% for five minutes. Current metric value: {{metricValues}}."

  is_notifications_per_metric_dimension_enabled = true
  message_format                                = "ONS_OPTIMIZED"
  metric_compartment_id_in_subtree              = true
  notification_version                          = "1.X"
  pending_duration                              = "PT5M"
  repeat_notification_duration                  = "PT30M"
  resolution                                    = "1m"
  rule_name                                     = "mysql-cpu-consumption"
}

resource "oci_monitoring_alarm" "mysql_memory_consumption" {
  compartment_id        = var.ocid_compartment_database
  metric_compartment_id = var.ocid_compartment_database
  destinations          = [var.topic_database]
  display_name          = "mysql-consumption-memory-${var.environment}"
  namespace             = "oci_mysql_database"
  query                 = "MemoryUtilization[1m].mean() > 75"
  severity              = "CRITICAL"
  is_enabled            = true

  alarm_summary      = "MySQL memory utilization is above 75%."
  notification_title = "SEI MySQL Memory Alert"
  body               = "MySQL instance {{dimensions.resourceDisplayName}} memory utilization exceeded 75% for five minutes. Current metric value: {{metricValues}}."

  is_notifications_per_metric_dimension_enabled = true
  message_format                                = "ONS_OPTIMIZED"
  metric_compartment_id_in_subtree              = true
  notification_version                          = "1.X"
  pending_duration                              = "PT5M"
  repeat_notification_duration                  = "PT30M"
  resolution                                    = "1m"
  rule_name                                     = "mysql-memory-consumption"
}

resource "oci_monitoring_alarm" "mysql_backup_fail" {
  compartment_id        = var.ocid_compartment_database
  metric_compartment_id = var.ocid_compartment_database
  destinations          = [var.topic_database]
  display_name          = "mysql-backup-fail-${var.environment}"
  namespace             = "oci_mysql_database"
  query                 = "BackupFailure[1m].mean() == 1"
  severity              = "CRITICAL"
  is_enabled            = true

  alarm_summary      = "A MySQL automatic backup failed."
  notification_title = "SEI MySQL Backup Failed"
  body               = "The automatic backup scheduled for MySQL instance {{dimensions.resourceDisplayName}} failed. Current metric value: {{metricValues}}."

  is_notifications_per_metric_dimension_enabled = true
  message_format                                = "ONS_OPTIMIZED"
  metric_compartment_id_in_subtree              = true
  notification_version                          = "1.X"
  pending_duration                              = "PT5M"
  repeat_notification_duration                  = "PT30M"
  resolution                                    = "1m"
  rule_name                                     = "backup-mysql-fail"
}