Increase configuration of the CyHy commander with Terraform

Allow configuration of the `next-scan-limit` value in the configuration
that is deployed for the CyHy commander.

ansible/roles/cyhy_commander/defaults/main.yml

@@ -1,2 +1,10 @@
 ---
 # defaults file for cyhy_commander
+
+# The maximum number of hosts that are scheduled to have scanning restarted
+# whose next scan stage should be updated per cyhy-commander cycle. The checks
+# for hosts that were "up" or "down" are processed separately so the total
+# number of hosts that are transitioned is double the provided value. Hosts
+# that are "up" are transitioned to PORTSCAN and hosts that are "down" are
+# transitioned to NETSCAN1.
+next_scan_limit: 8192

ansible/roles/cyhy_commander/templates/commander.conf.j2

@@ -4,7 +4,7 @@ database-uri = mongodb://{{ commander_user }}:{{ commander_pw }}@database1.cyhy:
 jobs-per-nmap-host = 8
 jobs-per-nessus-host = 16
 poll-interval = 30
-next-scan-limit = 8192
+next-scan-limit = {{ next_scan_limit }}
 test-mode = false
 keep-failures = true
 keep-successes = false

terraform/README.md

@@ -658,6 +658,7 @@ terraform apply -var-file=<your_workspace>.tfvars
 | bod\_lambda\_functions | A map of information for each BOD 18-01 Lambda. The keys are the scan types and the values are objects that contain the Lambda's name and the key (name) for the corresponding deployment package in the BOD Lambda S3 bucket. Example: `{ pshtt = { lambda_file = "pshtt.zip", lambda_name = "task_pshtt" }}` | `map(object({ lambda_file = string, lambda_name = string }))` | `{}` | no |
 | bod\_nat\_gateway\_eip | The IP corresponding to the EIP to be used for the BOD 18-01 NAT gateway in production.  In a non-production workspace an EIP will be created. | `string` | `""` | no |
 | cloudwatch\_alarm\_emails | A list of the emails to which alerts should be sent if any CloudWatch Alarm is triggered. | `list(string)` | ```[ "cisa-cool-group+cyhy@trio.dhs.gov" ]``` | no |
+| commander\_config | Configuration options for the CyHy commander's configuration file. | `object({ next_scan_limit = number })` | ```{ "next_scan_limit": 8192 }``` | no |
 | create\_bod\_flow\_logs | Whether or not to create flow logs for the BOD 18-01 VPC. | `bool` | `false` | no |
 | create\_cyhy\_flow\_logs | Whether or not to create flow logs for the CyHy VPC. | `bool` | `false` | no |
 | create\_mgmt\_flow\_logs | Whether or not to create flow logs for the Management VPC. | `bool` | `false` | no |

terraform/cyhy_mongo_ec2.tf

@@ -193,6 +193,7 @@ module "cyhy_mongo_ansible_provisioner" {
     "dmarc_import_es_role=${var.dmarc_import_es_role_arn}",
     "nmap_hosts=${join(",", formatlist("portscan%d", range(1, var.nmap_instance_count + 1)))}",
     "nessus_hosts=${join(",", formatlist("vulnscan%d", range(1, var.nessus_instance_count + 1)))}",
+    "next_scan_limit=${var.commander_config.next_scan_limit}",
   ]
   playbook = "../ansible/playbook.yml"
   dry_run  = false

terraform/variables.tf

@@ -179,6 +179,14 @@ variable "cloudwatch_alarm_emails" {
   type        = list(string)
 }
 
+variable "commander_config" {
+  default = {
+    next_scan_limit = 8192
+  }
+  description = "Configuration options for the CyHy commander's configuration file."
+  type        = object({ next_scan_limit = number })
+}
+
 variable "create_bod_flow_logs" {
   default     = false
   description = "Whether or not to create flow logs for the BOD 18-01 VPC."