hunfabric/modules/cloud-run-v2

Cloud Run Module

Cloud Run Services and Jobs, with support for IAM roles and Eventarc trigger creation. This module uses provider default value for deletion_protection, which means service is by default protected from removal (or reprovisioning).

• IAM and environment variables
• Mounting secrets as volumes
• Mounting GCS buckets
• Connecting to Cloud SQL database
• Direct VPC Egress
• VPC Access Connector
• Using Customer-Managed Encryption Key
• Eventarc triggers
  • PubSub
  • Audit logs
  • Using custom service accounts for triggers
• Cloud Run Service Account
• Creating Cloud Run Jobs
• Tag bindings
• Variables
• Outputs
• Fixtures

IAM and environment variables

IAM bindings support the usual syntax. Container environment values can be declared as key-value strings or as references to Secret Manager secrets. Both can be combined as long as there is no duplication of keys:

module "cloud_run" {
  source     = "./fabric/modules/cloud-run-v2"
  project_id = var.project_id
  name       = "hello"
  region     = var.region
  containers = {
    hello = {
      image = "us-docker.pkg.dev/cloudrun/container/hello"
      env = {
        VAR1 = "VALUE1"
        VAR2 = "VALUE2"
      }
      env_from_key = {
        SECRET1 = {
          secret  = module.secret-manager.secrets["credentials"].name
          version = module.secret-manager.version_versions["credentials:v1"]
        }
      }
    }
  }
  iam = {
    "roles/run.invoker" = ["allUsers"]
  }
  deletion_protection = false
}
# tftest modules=2 resources=5 fixtures=fixtures/secret-credentials.tf inventory=service-iam-env.yaml e2e

Mounting secrets as volumes

module "cloud_run" {
  source     = "./fabric/modules/cloud-run-v2"
  project_id = var.project_id
  name       = "hello"
  region     = var.region
  containers = {
    hello = {
      image = "us-docker.pkg.dev/cloudrun/container/hello"
      volume_mounts = {
        "credentials" = "/credentials"
      }
    }
  }
  volumes = {
    credentials = {
      secret = {
        name    = module.secret-manager.secrets["credentials"].id
        path    = "my-secret"
        version = "latest" # TODO: should be optional, but results in API error
      }
    }
  }
  deletion_protection = false
}
# tftest modules=2 resources=4 fixtures=fixtures/secret-credentials.tf inventory=service-volume-secretes.yaml e2e

Mounting GCS buckets

module "cloud_run" {
  source     = "./fabric/modules/cloud-run-v2"
  project_id = var.project_id
  name       = "hello"
  region     = var.region
  containers = {
    hello = {
      image = "us-docker.pkg.dev/cloudrun/container/hello"
      volume_mounts = {
        bucket = "/bucket"
      }
    }
  }
  revision = {
    gen2_execution_environment = true
  }
  volumes = {
    bucket = {
      gcs = {
        bucket       = var.bucket
        is_read_only = false
        mount_options = [ # Beta feature
          "metadata-cache-ttl-secs=120s",
          "type-cache-max-size-mb=4",
        ]
      }
    }
  }
  deletion_protection = false
}
# tftest inventory=gcs-mount.yaml e2e

Connecting to Cloud SQL database

module "cloud_run" {
  source     = "./fabric/modules/cloud-run-v2"
  project_id = var.project_id
  region     = var.region
  name       = "hello"
  containers = {
    hello = {
      image = "us-docker.pkg.dev/cloudrun/container/hello"
      volume_mounts = {
        cloudsql = "/cloudsql"
      }
    }
  }
  volumes = {
    "cloudsql" = {
      cloud_sql_instances = [module.cloudsql-instance.connection_name]
    }
  }
  deletion_protection = false
}
# tftest fixtures=fixtures/cloudsql-instance.tf inventory=cloudsql.yaml e2e

Direct VPC Egress

module "cloud_run" {
  source     = "./fabric/modules/cloud-run-v2"
  project_id = var.project_id
  name       = "hello"
  region     = var.region
  containers = {
    hello = {
      image = "us-docker.pkg.dev/cloudrun/container/hello"
    }
  }
  revision = {
    gen2_execution_environment = true
    max_instance_count         = 20
    vpc_access = {
      egress = "ALL_TRAFFIC"
      subnet = var.subnet.name
      tags   = ["tag1", "tag2", "tag3"]
    }
  }
  deletion_protection = false
}
# tftest modules=1 resources=1 inventory=service-direct-vpc.yaml e2e

VPC Access Connector

You can use an existing VPC Access Connector to connect to a VPC from Cloud Run.

module "cloud_run" {
  source     = "./fabric/modules/cloud-run-v2"
  project_id = var.project_id
  region     = var.region
  name       = "hello"
  containers = {
    hello = {
      image = "us-docker.pkg.dev/cloudrun/container/hello"
    }
  }
  revision = {
    vpc_access = {
      connector = google_vpc_access_connector.connector.id
      egress    = "ALL_TRAFFIC"
    }
  }
  deletion_protection = false
}
# tftest modules=1 resources=2 fixtures=fixtures/vpc-connector.tf inventory=service-vpc-access-connector.yaml e2e

If creation of the VPC Access Connector is required, use the vpc_connector_create variable which also supports optional attributes like number of instances, machine type, or throughput. The connector will be used automatically.

module "cloud_run" {
  source     = "./fabric/modules/cloud-run-v2"
  project_id = var.project_id
  region     = var.region
  name       = "hello"
  containers = {
    hello = {
      image = "us-docker.pkg.dev/cloudrun/container/hello"
    }
  }
  vpc_connector_create = {
    ip_cidr_range = "10.10.10.0/28"
    network       = var.vpc.self_link
    instances = {
      max = 10
      min = 3
    }
  }
  deletion_protection = false
}
# tftest modules=1 resources=2 inventory=service-vpc-access-connector-create.yaml e2e

Note that if you are using a Shared VPC for the connector, you need to specify a subnet and the host project if this is not where the Cloud Run service is deployed.

module "cloud_run" {
  source     = "./fabric/modules/cloud-run-v2"
  project_id = module.project-service.project_id
  region     = var.region
  name       = "hello"
  containers = {
    hello = {
      image = "us-docker.pkg.dev/cloudrun/container/hello"
    }
  }
  vpc_connector_create = {
    machine_type = "e2-standard-4"
    subnet = {
      name       = module.net-vpc-host.subnets["${var.region}/fixture-subnet-28"].name
      project_id = module.project-host.project_id
    }
    throughput = {
      max = 300
      min = 200
    }
  }
  deletion_protection = false
}
# tftest modules=4 resources=55 fixtures=fixtures/shared-vpc.tf inventory=service-vpc-access-connector-create-sharedvpc.yaml e2e

Using Customer-Managed Encryption Key

Deploy a Cloud Run service with environment variables encrypted using a Customer-Managed Encryption Key (CMEK). Ensure you specify the encryption_key with the full resource identifier of your Cloud KMS CryptoKey and that Cloud Run Service agent (service-<PROJECT_NUMBER>@serverless-robot-prod.iam.gserviceaccount.com) has permission to use the key, for example roles/cloudkms.cryptoKeyEncrypterDecrypter IAM role. This setup adds an extra layer of security by utilizing your own encryption keys.

module "project" {
  source          = "./fabric/modules/project"
  name            = "cloudrun"
  billing_account = var.billing_account_id
  prefix          = var.prefix
  parent          = var.folder_id
  services = [
    "cloudkms.googleapis.com",
    "run.googleapis.com",
  ]
}

module "kms" {
  source     = "./fabric/modules/kms"
  project_id = module.project.project_id
  keyring = {
    location = var.region
    name     = "keyring"
  }
  keys = {
    "key-regional" = {
    }
  }
  iam = {
    "roles/cloudkms.cryptoKeyEncrypterDecrypter" = [
      module.project.service_agents.run.iam_email
    ]
  }
}

module "cloud_run" {
  source         = "./fabric/modules/cloud-run-v2"
  project_id     = module.project.project_id
  region         = var.region
  name           = "hello"
  encryption_key = module.kms.keys.key-regional.id
  containers = {
    hello = {
      image = "us-docker.pkg.dev/cloudrun/container/hello"
    }
  }
  deletion_protection = false
}
# tftest modules=3 resources=11 e2e

Eventarc triggers

PubSub

This deploys a Cloud Run service that will be triggered when messages are published to Pub/Sub topics.

module "cloud_run" {
  source     = "./fabric/modules/cloud-run-v2"
  project_id = var.project_id
  region     = var.region
  name       = "hello"
  containers = {
    hello = {
      image = "us-docker.pkg.dev/cloudrun/container/hello"
    }
  }
  eventarc_triggers = {
    pubsub = {
      topic-1 = module.pubsub.topic.name
    }
  }
  deletion_protection = false
}
# tftest modules=2 resources=4 fixtures=fixtures/pubsub.tf inventory=service-eventarc-pubsub.yaml e2e

Audit logs

This deploys a Cloud Run service that will be triggered when specific log events are written to Google Cloud audit logs.

module "cloud_run" {
  source     = "./fabric/modules/cloud-run-v2"
  project_id = var.project_id
  region     = var.region
  name       = "hello"
  containers = {
    hello = {
      image = "us-docker.pkg.dev/cloudrun/container/hello"
    }
  }
  eventarc_triggers = {
    audit_log = {
      setiampolicy = {
        method  = "SetIamPolicy"
        service = "cloudresourcemanager.googleapis.com"
      }
    }
    service_account_create = true
  }
  deletion_protection = false
}
# tftest modules=1 resources=4 inventory=service-eventarc-auditlogs-sa-create.yaml

Using custom service accounts for triggers

By default Compute default service account is used to trigger Cloud Run. If you want to use custom Service Accounts you can either provide your own in eventarc_triggers.service_account_email or set eventarc_triggers.service_account_create to true and service account named tf-cr-trigger-${var.name} will be created with roles/run.invoker granted on this Cloud Run service.

Example using provided service account:

module "cloud_run" {
  source     = "./fabric/modules/cloud-run-v2"
  project_id = var.project_id
  region     = var.region
  name       = "hello"
  containers = {
    hello = {
      image = "us-docker.pkg.dev/cloudrun/container/hello"
    }
  }
  eventarc_triggers = {
    audit_log = {
      setiampolicy = {
        method  = "SetIamPolicy"
        service = "cloudresourcemanager.googleapis.com"
      }
    }
    service_account_email = "cloud-run-trigger@my-project.iam.gserviceaccount.com"
  }
}
# tftest modules=1 resources=2 inventory=service-eventarc-auditlogs-external-sa.yaml

Example using automatically created service account:

module "cloud_run" {
  source     = "./fabric/modules/cloud-run-v2"
  project_id = var.project_id
  region     = var.region
  name       = "hello"
  containers = {
    hello = {
      image = "us-docker.pkg.dev/cloudrun/container/hello"
    }
  }
  eventarc_triggers = {
    pubsub = {
      topic-1 = module.pubsub.topic.name
    }
    service_account_create = true
  }
  deletion_protection = false
}
# tftest modules=2 resources=6 fixtures=fixtures/pubsub.tf inventory=service-eventarc-pubsub-sa-create.yaml e2e

Cloud Run Service Account

To use a custom service account managed by the module, set service_account_create to true and leave service_account set to null (default).

module "cloud_run" {
  source     = "./fabric/modules/cloud-run-v2"
  project_id = var.project_id
  region     = var.region
  name       = "hello"
  containers = {
    hello = {
      image = "us-docker.pkg.dev/cloudrun/container/hello"
    }
  }
  service_account_create = true
  deletion_protection    = false
}
# tftest modules=1 resources=2 inventory=service-sa-create.yaml e2e

To use an externally managed service account, use its email in service_account and leave service_account_create to false (default).

module "cloud_run" {
  source     = "./fabric/modules/cloud-run-v2"
  project_id = var.project_id
  region     = var.region
  name       = "hello"
  containers = {
    hello = {
      image = "us-docker.pkg.dev/cloudrun/container/hello"
    }
  }
  service_account     = module.iam-service-account.email
  deletion_protection = false
}
# tftest modules=2 resources=2 fixtures=fixtures/iam-service-account.tf inventory=service-external-sa.yaml e2e

Creating Cloud Run Jobs

To create a job instead of service set create_job to true. Jobs support all functions above apart from triggers.

Unsupported variables / attributes:

• ingress
• revision.gen2_execution_environment (they run by default in gen2)
• revision.name
• containers.liveness_probe
• containers.startup_probe
• containers.resources.cpu_idle
• containers.resources.startup_cpu_boost

module "cloud_run" {
  source     = "./fabric/modules/cloud-run-v2"
  project_id = var.project_id
  name       = "hello"
  region     = var.region
  create_job = true
  containers = {
    hello = {
      image = "us-docker.pkg.dev/cloudrun/container/hello"
      env = {
        VAR1 = "VALUE1"
        VAR2 = "VALUE2"
      }
    }
  }
  iam = {
    "roles/run.invoker" = ["group:${var.group_email}"]
  }
  deletion_protection = false
}

# tftest modules=1 resources=2 inventory=job-iam-env.yaml e2e

Tag bindings

Tag bindings are not yet supported for jobs. Refer to the Creating and managing tags documentation for details on usage.

module "org" {
  source          = "./fabric/modules/organization"
  organization_id = var.organization_id
  tags = {
    environment = {
      description = "Environment specification."
      values = {
        dev     = {}
        prod    = {}
        sandbox = {}
      }
    }
  }
}

module "cloud_run" {
  source     = "./fabric/modules/cloud-run-v2"
  project_id = var.project_id
  name       = "hello"
  region     = var.region
  containers = {
    hello = {
      image = "us-docker.pkg.dev/cloudrun/container/hello"
      env = {
        VAR1 = "VALUE1"
        VAR2 = "VALUE2"
      }
    }
  }
  iam = {
    "roles/run.invoker" = ["allUsers"]
  }
  tag_bindings = {
    env-sandbox = module.org.tag_values["environment/sandbox"].id
  }
}
# tftest modules=2 resources=7

Variables

name	description	type	required	default
name	Name used for Cloud Run service.	string	✓
project_id	Project id used for all resources.	string	✓
region	Region used for all resources.	string	✓
containers	Containers in name => attributes format.	map(object({…}))		{}
create_job	Create Cloud Run Job instead of Service.	bool		false
custom_audiences	Custom audiences for service.	list(string)		null
deletion_protection	Deletion protection setting for this Cloud Run service.	string		null
encryption_key	The full resource name of the Cloud KMS CryptoKey.	string		null
eventarc_triggers	Event arc triggers for different sources.	object({…})		{}
iam	IAM bindings for Cloud Run service in {ROLE => [MEMBERS]} format.	map(list(string))		{}
ingress	Ingress settings.	string		null
labels	Resource labels.	map(string)		{}
launch_stage	The launch stage as defined by Google Cloud Platform Launch Stages.	string		null
prefix	Optional prefix used for resource names.	string		null
revision	Revision template configurations.	object({…})		{}
service_account	Service account email. Unused if service account is auto-created.	string		null
service_account_create	Auto-create service account.	bool		false
tag_bindings	Tag bindings for this service, in key => tag value id format.	map(string)		{}
volumes	Named volumes in containers in name => attributes format.	map(object({…}))		{}
vpc_connector_create	Populate this to create a Serverless VPC Access connector.	object({…})		null

Outputs

name	description	sensitive
id	Fully qualified job or service id.
job	Cloud Run Job.
service	Cloud Run Service.
service_account	Service account resource.
service_account_email	Service account email.
service_account_iam_email	Service account email.
service_name	Cloud Run service name.
service_uri	Main URI in which the service is serving traffic.
vpc_connector	VPC connector resource if created.

Fixtures

• cloudsql-instance.tf
• iam-service-account.tf
• pubsub.tf
• secret-credentials.tf
• shared-vpc.tf
• vpc-connector.tf