f5xc_healthcheck Resource - terraform-provider-f5xc

f5xc_healthcheck (Resource)

Manages a Healthcheck resource in F5 Distributed Cloud for healthcheck object defines method to determine if the given endpoint is healthy. single healthcheck object can be referred to by one or many cluster objects. configuration.

~> Note For more information about this resource, please refer to the F5 XC API Documentation.

Example Usage

# Healthcheck Resource Example
# Manages a Healthcheck resource in F5 Distributed Cloud for healthcheck object defines method to determine if the given endpoint is healthy. single healthcheck object can be referred to by one or many cluster objects. configuration.

terraform {
  required_version = ">= 1.0"

  required_providers {
    f5xc = {
      source  = "f5xc-salesdemos/f5xc"
      version = ">= 0.1.0"
    }
  }
}

# Basic Healthcheck configuration
resource "f5xc_healthcheck" "example" {
  name      = "example-healthcheck"
  namespace = "staging"

  labels = {
    environment = "production"
    managed_by  = "terraform"
  }

  annotations = {
    "owner" = "platform-team"
  }

  // One of the arguments from this list "http_health_check tcp_health_check udp_icmp_health_check" must be set

  http_health_check {
    // One of the arguments from this list "host_header use_origin_server_name" must be set

    use_origin_server_name {}

    path                  = "/health"
    use_http2             = false
    expected_status_codes = ["200"]

    // One of the arguments from this list "headers request_headers_to_remove" must be set

    headers = {
      "x-health-check" = "true"
    }
  }

  healthy_threshold   = 3
  unhealthy_threshold = 3
  interval            = 15
  timeout             = 5
}

# The following optional fields have server-applied defaults and can be omitted:
# - jitter_percent

Verified Configuration Examples

These configurations are extracted from acceptance tests verified against the live F5 XC API.

All Attributes

resource "f5xc_healthcheck" "test" {
  name      = "example"
  namespace = "system"

  healthy_threshold   = 1
  unhealthy_threshold = 2
  timeout             = 3
  interval            = 5

  labels = {
    environment = "test"
    managed_by  = "terraform-acceptance-test"
  }

  annotations = {
    purpose = "acceptance-testing"
    owner   = "ci-cd"
  }

  tcp_health_check {}
}

Http Headers Remove

resource "f5xc_healthcheck" "test" {
  name      = "example"
  namespace = "system"

  healthy_threshold   = 1
  unhealthy_threshold = 2
  timeout             = 3
  interval            = 5

  http_health_check {
    path                      = "example-value"
    host_header               = "example.com"
    request_headers_to_remove = ["X-Custom-Header", "X-Debug"]
  }
}

Http Health Check

resource "f5xc_healthcheck" "test" {
  name      = "example"
  namespace = "system"

  healthy_threshold   = 1
  unhealthy_threshold = 2
  timeout             = 3
  interval            = 5

  http_health_check {
    path        = "/health"
    host_header = "example.com"
  }
}

Http Http2

resource "f5xc_healthcheck" "test" {
  name      = "example"
  namespace = "system"

  healthy_threshold   = 1
  unhealthy_threshold = 2
  timeout             = 3
  interval            = 5

  http_health_check {
    path        = "example-value"
    host_header = "example.com"
    use_http2   = true
  }
}

Http Origin Server Name

resource "f5xc_healthcheck" "test" {
  name      = "example"
  namespace = "system"

  healthy_threshold   = 1
  unhealthy_threshold = 2
  timeout             = 3
  interval            = 5

  http_health_check {
    path = "example-value"
    use_origin_server_name {}
  }
}

Http Status Codes

resource "f5xc_healthcheck" "test" {
  name      = "example"
  namespace = "system"

  healthy_threshold   = 1
  unhealthy_threshold = 2
  timeout             = 3
  interval            = 5

  http_health_check {
    path                  = "example-value"
    host_header           = "example.com"
    expected_status_codes = ["200", "201", "204"]
  }
}

Http With Path

resource "f5xc_healthcheck" "test" {
  name      = "example"
  namespace = "system"

  healthy_threshold   = 1
  unhealthy_threshold = 2
  timeout             = 3
  interval            = 5

  http_health_check {
    path        = "example-value"
    host_header = "example.com"
  }
}

Thresholds

resource "f5xc_healthcheck" "test" {
  name      = "example"
  namespace = "system"

  healthy_threshold   = 443
  unhealthy_threshold = 3
  timeout             = 5
  interval            = 15

  tcp_health_check {}
}

Udp Icmp

resource "f5xc_healthcheck" "test" {
  name      = "example"
  namespace = "system"

  healthy_threshold   = 1
  unhealthy_threshold = 2
  timeout             = 3
  interval            = 5

  udp_icmp_health_check {}
}

With Annotations

resource "f5xc_healthcheck" "test" {
  name      = "example"
  namespace = "system"

  healthy_threshold   = 1
  unhealthy_threshold = 2
  timeout             = 3
  interval            = 5

  annotations = {
    key1 = "example-value"
    key2 = "example-description"
  }

  tcp_health_check {}
}

With Description

resource "f5xc_healthcheck" "test" {
  name        = "example"
  namespace   = "system"
  description = "example-value"

  healthy_threshold   = 1
  unhealthy_threshold = 2
  timeout             = 3
  interval            = 5

  tcp_health_check {}
}

With Jitter

resource "f5xc_healthcheck" "test" {
  name      = "example"
  namespace = "system"

  healthy_threshold   = 1
  unhealthy_threshold = 2
  timeout             = 3
  interval            = 5
  jitter_percent      = 443

  tcp_health_check {}
}

With Labels

resource "f5xc_healthcheck" "test" {
  name      = "example"
  namespace = "system"

  healthy_threshold   = 1
  unhealthy_threshold = 2
  timeout             = 3
  interval            = 5

  labels = {
    environment = "example-value"
    managed_by  = "example-description"
  }

  tcp_health_check {}
}

Argument Reference

🔶 High Risk Operations — Some operations on this resource have high danger level. Destructive operations may require confirmation.

Minimum Configuration

Required fields:

• name
• namespace
• interval
• timeout
• healthy_threshold
• unhealthy_threshold

Example (API format):

apiVersion: v1
kind: healthcheck
metadata:
  name: http-health
  namespace: default
spec:
  http_health_check:
    path: /health
    use_origin_server_name: {}
  interval: 15
  timeout: 3
  unhealthy_threshold: 1
  healthy_threshold: 3
  jitter_percent: 30

Metadata Argument Reference

• name - Required String
Name of the Healthcheck. Must be unique within the namespace

• namespace - Required String
Namespace where the Healthcheck will be created

• annotations - Optional Map
Annotations is an unstructured key value map stored with a resource that may be set by external tools to store and retrieve arbitrary metadata

• description - Optional String
Human readable description for the object

• disable - Optional Bool
A value of true will administratively disable the object

• labels - Optional Map
Labels is a user defined key value map that can be attached to resources for organization and filtering

Spec Argument Reference

• healthy_threshold - Required Number
Number of successful responses before declaring healthy. In other words, this is the number of healthy health checks required before a host is marked healthy. Note that during startup, only a single successful health check is required to mark a host healthy. Recommended: 3

-> One of the following: • http_health_check - Optional Block
Healthy if ‘GET’ method on URL ‘HTTP(s)://<host>/<path>’ with optional ‘<header>’ returns success. ‘host’ is not used for DNS resolution. It is used as HTTP Header in the request
See HTTP Health Check below for details.

• tcp_health_check - Optional Block
Healthy if TCP connection is successful and response payload matches <expected_response>
See TCP Health Check below for details.

• udp_icmp_health_check - Optional Block
Configuration parameter for UDP ICMP health check

• interval - Required Number
Time interval in seconds between two healthcheck requests. Recommended: 15

• jitter_percent - Optional Number Defaults to 0
Add a random amount of time as a percent value to the interval between successive healthcheck requests. Recommended: 30 ⚙️ Server Default

• timeout - Required Number
Timeout in seconds to wait for successful response. In other words, it is the time to wait for a health check response. If the timeout is reached the health check attempt will be considered a failure. Recommended: 3

• timeouts - Optional Block
See Timeouts below for details.

• unhealthy_threshold - Required Number
Number of failed responses before declaring unhealthy. In other words, this is the number of unhealthy health checks required before a host is marked unhealthy. Note that for HTTP health checkingg if a host responds with 503 this threshold is ignored and the host is considered unhealthy immediately. Recommended: 1

Attributes Reference

In addition to all arguments above, the following attributes are exported:

• id - Optional String
Unique identifier for the resource

---

HTTP Health Check

A http_health_check block supports the following:

• expected_response - Optional String
Raw bytes expected in the response of HTTP health check. Input is to be given in Hex encoded format. If left empty, then response body is not considered for evaluating health check status

• expected_status_codes - Optional List
Specifies a list of HTTP response status codes considered healthy. To treat default HTTP expected status code 200 as healthy, user has to configure it explicitly. This is a list of strings, each of which is single HTTP status code or a range with start and end values separated by ’-’

• headers - Optional Block
Specifies a list of HTTP headers that should be added to each request that is sent to the health checked cluster. This is a list of key-value pairs

• host_header - Optional String
The value of the host header

• path - Optional String
Specifies the HTTP path that will be requested during health checkingg

• request_headers_to_remove - Optional List
Specifies a list of HTTP headers that should be removed from each request that is sent to the health checked cluster. This is a list of keys of headers

• use_http2 - Optional Bool Defaults to false
If set, health checks will be made using HTTP/2

• use_origin_server_name - Optional Block
Enable this option

TCP Health Check

A tcp_health_check block supports the following:

• expected_response - Optional String
Raw bytes expected in the request. Describes the encoding of the payload bytes in the payload. Hex encoded payload

• send_payload - Optional String
Raw bytes sent in the request. Empty payloads imply a connect-only health check. Describes the encoding of the payload bytes in the payload. Hex encoded payload

Timeouts

A timeouts block supports the following:

• create - Optional String (Defaults to 10 minutes)
Used when creating the resource

• delete - Optional String (Defaults to 10 minutes)
Used when deleting the resource

• read - Optional String (Defaults to 5 minutes)
Used when retrieving the resource

• update - Optional String (Defaults to 10 minutes)
Used when updating the resource

---

Common Types

The following type definitions are used throughout this resource. See the full definition here rather than repeated inline.

Object Reference {#common-object-reference}

Object references establish a direct reference from one configuration object to another in F5 Distributed Cloud. References use the format tenant/namespace/name.

Field	Type	Description
name	String	Name of the referenced object
namespace	String	Namespace containing the referenced object
tenant	String	Tenant of the referenced object (system-managed)

Transformers {#common-transformers}

Transformers apply transformations to input values before matching. Multiple transformers can be applied in order.

Value	Description
LOWER_CASE	Convert to lowercase
UPPER_CASE	Convert to uppercase
BASE64_DECODE	Decodebase64 content
NORMALIZE_PATH	Normalize URL path
REMOVE_WHITESPACE	Remove whitespace characters
URL_DECODE	Decode URL-encoded characters
TRIM_LEFT	Trim leading whitespace
TRIM_RIGHT	Trim trailing whitespace
TRIM	Trim both leading and trailing whitespace

HTTP Methods {#common-http-methods}

HTTP methods used for request matching.

Value	Description
ANY	Match any HTTP method
GET	HTTP GET request
HEAD	HTTP HEAD request
POST	HTTP POST request
PUT	HTTP PUT request
DELETE	HTTP DELETE request
CONNECT	HTTP CONNECT request
OPTIONS	HTTP OPTIONS request
TRACE	HTTP TRACE request
PATCH	HTTP PATCH request
COPY	HTTP COPY request (WebDAV)

TLS Fingerprints {#common-tls-fingerprints}

TLS fingerprint categories for malicious client detection.

Value	Description
TLS_FINGERPRINT_NONE	No fingerprint matching
ANY_MALICIOUS_FINGERPRINT	Match any known malicious fingerprint
ADWARE	Adware-associated fingerprints
DRIDEX	Dridex malware fingerprints
GOOTKIT	Gootkit malware fingerprints
RANSOMWARE	Ransomware-associated fingerprints
TRICKBOT	Trickbot malware fingerprints

IP Threat Categories {#common-ip-threat-categories}

IP address threat categories for security filtering.

Value	Description
SPAM_SOURCES	Known spam sources
WINDOWS_EXPLOITS	Windows exploit sources
WEB_ATTACKS	Web attack sources
BOTNETS	Known botnet IPs
SCANNERS	Network scanner IPs
REPUTATION	Poor reputation IPs
PHISHING	Phishing-related IPs
PROXY	Anonymous proxy IPs
MOBILE_THREATS	Mobile threat sources
TOR_PROXY	Tor exit nodes
DENIAL_OF_SERVICE	DoS attack sources
NETWORK	Known bad network ranges

Import

Import is supported using the following syntax:

# Import using namespace/name format
terraform import f5xc_healthcheck.example system/example