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Enable VPC Flow Logs for subnetworks

org.openrewrite.terraform.gcp.EnableVPCFlowLogsForSubnetworks

Ensure GCP VPC flow logs for subnets are enabled. Flow Logs capture information on IP traffic moving through network interfaces. This information can be used to monitor anomalous traffic and provide security insights.

Tags

  • GCP
  • CKV_GCP_26
  • terraform

Source

GitHub, Issue Tracker, Maven Central

  • groupId: org.openrewrite.recipe
  • artifactId: rewrite-terraform
  • version: 2.0.1

Usage

This recipe has no required configuration options. It can be activated by adding a dependency on org.openrewrite.recipe:rewrite-terraform:2.0.1 in your build file or by running a shell command (in which case no build changes are needed): {% tabs %} {% tab title="Gradle" %} {% code title="build.gradle" %}

plugins {
    id("org.openrewrite.rewrite") version("6.1.4")
}

rewrite {
    activeRecipe("org.openrewrite.terraform.gcp.EnableVPCFlowLogsForSubnetworks")
}

repositories {
    mavenCentral()
}

dependencies {
    rewrite("org.openrewrite.recipe:rewrite-terraform:2.0.1")
}

{% endcode %} {% endtab %} {% tab title="Maven POM" %} {% code title="pom.xml" %}

<project>
  <build>
    <plugins>
      <plugin>
        <groupId>org.openrewrite.maven</groupId>
        <artifactId>rewrite-maven-plugin</artifactId>
        <version>5.2.4</version>
        <configuration>
          <activeRecipes>
            <recipe>org.openrewrite.terraform.gcp.EnableVPCFlowLogsForSubnetworks</recipe>
          </activeRecipes>
        </configuration>
        <dependencies>
          <dependency>
            <groupId>org.openrewrite.recipe</groupId>
            <artifactId>rewrite-terraform</artifactId>
            <version>2.0.1</version>
          </dependency>
        </dependencies>
      </plugin>
    </plugins>
  </build>
</project>

{% endcode %} {% endtab %}

{% tab title="Maven Command Line" %} {% code title="shell" %} You will need to have Maven installed on your machine before you can run the following command.

mvn -U org.openrewrite.maven:rewrite-maven-plugin:run \
  -Drewrite.recipeArtifactCoordinates=org.openrewrite.recipe:rewrite-terraform:RELEASE \
  -Drewrite.activeRecipes=org.openrewrite.terraform.gcp.EnableVPCFlowLogsForSubnetworks

{% endcode %} {% endtab %} {% endtabs %}

Definition

{% tabs %} {% tab title="Recipe List" %}

  • Add Terraform configuration
    • resourceName: google_compute_subnetwork
    • content: log_config { aggregation_interval = "INTERVAL_10_MIN" flow_sampling = 0.5 metadata = "INCLUDE_ALL_METADATA" }

{% endtab %}

{% tab title="Yaml Recipe List" %}

---
type: specs.openrewrite.org/v1beta/recipe
name: org.openrewrite.terraform.gcp.EnableVPCFlowLogsForSubnetworks
displayName: Enable VPC Flow Logs for subnetworks
description: Ensure GCP VPC flow logs for subnets are enabled. Flow Logs capture information on IP traffic moving through network interfaces. This information can be used to monitor anomalous traffic and provide security insights.
tags:
  - GCP
  - CKV_GCP_26
  - terraform
recipeList:
  - org.openrewrite.terraform.AddConfiguration:
      resourceName: google_compute_subnetwork
      content: log_config {
  aggregation_interval = "INTERVAL_10_MIN"
  flow_sampling        = 0.5
  metadata             = "INCLUDE_ALL_METADATA"
}

{% endtab %} {% endtabs %}

Contributors

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