feat(trivy): Enhance Trivy report generation and metrics handling

- Updated `generate_report.sh` to include additional scanners and output paths.
- Enhanced `send_report.py` with new data classes for misconfigurations and vulnerabilities.
- Improved parsing logic for Trivy output, supporting both Kubernetes and image scans.
- Added Prometheus metrics generation for various scan results, including misconfigurations and vulnerabilities.
- Introduced unit tests for parsing Trivy output and generating Prometheus metrics.
- Modified Terraform variables for SMTP port type and added Pushgateway URL variable.

terraform/modules/utils/trivy/main.tf

@@ -85,7 +85,7 @@ resource "kubernetes_cron_job_v1" "trivy" {
         backoff_limit           = 1
         parallelism             = 1
         completions             = 1
-        active_deadline_seconds = 250
+        active_deadline_seconds = 600
 
         template {
           metadata {
@@ -126,9 +126,9 @@ resource "kubernetes_cron_job_v1" "trivy" {
               }
             }
             container {
-              name  = "send-report"
-              image = "python:${local.python_version}"
-              args  = ["/scripts/send_report.py"]
+              name    = "send-report"
+              image   = "python:${local.python_version}"
+              command = ["python3", "/scripts/send_report.py"]
               env {
                 name  = "SMTP_HOST"
                 value = var.smtp_host
@@ -163,6 +163,18 @@ resource "kubernetes_cron_job_v1" "trivy" {
                 name  = "EMAIL_TO"
                 value = var.to_email
               }
+              env {
+                name  = "PUSHGATEWAY_URL"
+                value = var.pushgateway_url
+              }
+              env {
+                name  = "REPORT_PATH"
+                value = "/tmp/report.html"
+              }
+              env {
+                name  = "TRIVY_OUTPUT_FILE"
+                value = "/tmp/trivy.json"
+              }
               security_context {
                 run_as_non_root            = true
                 run_as_user                = 1000