Workload Host Port Not Specified
- Query id: 4e74cf4f-ff65-4c1a-885c-67ab608206ce
- Query name: Workload Host Port Not Specified
- Platform: Terraform
- Severity: Low
- Category: Networking and Firewall
- URL: Github
Description¶
Verifies if Kubernetes workload's host port is specified
Documentation
Code samples¶
Code samples with security vulnerabilities¶
Postitive test num. 1 - tf file
resource "kubernetes_pod" "test" {
metadata {
name = "terraform-example"
}
spec {
container {
image = "nginx:1.7.9"
name = "example"
env {
name = "environment"
value = "test"
}
port {
container_port = 8080
}
liveness_probe {
http_get {
path = "/nginx_status"
port = 80
http_header {
name = "X-Custom-Header"
value = "Awesome"
}
}
initial_delay_seconds = 3
period_seconds = 3
}
}
dns_config {
nameservers = ["1.1.1.1", "8.8.8.8", "9.9.9.9"]
searches = ["example.com"]
option {
name = "ndots"
value = 1
}
option {
name = "use-vc"
}
}
dns_policy = "None"
}
}
Postitive test num. 2 - tf file
resource "kubernetes_deployment" "example" {
metadata {
name = "terraform-example"
labels = {
test = "MyExampleApp"
}
}
spec {
replicas = 3
selector {
match_labels = {
test = "MyExampleApp"
}
}
template {
metadata {
labels = {
test = "MyExampleApp"
}
}
spec {
container {
image = "nginx:1.7.8"
name = "example"
resources {
limits = {
cpu = "0.5"
memory = "512Mi"
}
requests = {
cpu = "250m"
memory = "50Mi"
}
}
port {
container_port = 8080
}
liveness_probe {
http_get {
path = "/nginx_status"
port = 80
http_header {
name = "X-Custom-Header"
value = "Awesome"
}
}
initial_delay_seconds = 3
period_seconds = 3
}
}
}
}
}
}
Code samples without security vulnerabilities¶
Negative test num. 1 - tf file
resource "kubernetes_pod" "test" {
metadata {
name = "terraform-example"
}
spec {
container {
image = "nginx:1.7.9"
name = "example"
env {
name = "environment"
value = "test"
}
port {
container_port = 8080
host_port = 2
}
liveness_probe {
http_get {
path = "/nginx_status"
port = 80
http_header {
name = "X-Custom-Header"
value = "Awesome"
}
}
initial_delay_seconds = 3
period_seconds = 3
}
}
dns_config {
nameservers = ["1.1.1.1", "8.8.8.8", "9.9.9.9"]
searches = ["example.com"]
option {
name = "ndots"
value = 1
}
option {
name = "use-vc"
}
}
dns_policy = "None"
}
}
Negative test num. 2 - tf file
resource "kubernetes_deployment" "example" {
metadata {
name = "terraform-example"
labels = {
test = "MyExampleApp"
}
}
spec {
replicas = 3
selector {
match_labels = {
test = "MyExampleApp"
}
}
template {
metadata {
labels = {
test = "MyExampleApp"
}
}
spec {
container {
image = "nginx:1.7.8"
name = "example"
resources {
limits = {
cpu = "0.5"
memory = "512Mi"
}
requests = {
cpu = "250m"
memory = "50Mi"
}
}
port {
container_port = 8080
host_port = 2
}
liveness_probe {
http_get {
path = "/nginx_status"
port = 80
http_header {
name = "X-Custom-Header"
value = "Awesome"
}
}
initial_delay_seconds = 3
period_seconds = 3
}
}
}
}
}
}