NAME

Paws::ServiceDiscovery::HealthCheckConfig

USAGE

This class represents one of two things:

Arguments in a call to a service

Use the attributes of this class as arguments to methods. You shouldn't make instances of this class. Each attribute should be used as a named argument in the calls that expect this type of object.

As an example, if Att1 is expected to be a Paws::ServiceDiscovery::HealthCheckConfig object:

  $service_obj->Method(Att1 => { FailureThreshold => $value, ..., Type => $value  });

Results returned from an API call

Use accessors for each attribute. If Att1 is expected to be an Paws::ServiceDiscovery::HealthCheckConfig object:

  $result = $service_obj->Method(...);
  $result->Att1->FailureThreshold

DESCRIPTION

Public DNS namespaces only. A complex type that contains settings for an optional health check. If you specify settings for a health check, AWS Cloud Map associates the health check with the records that you specify in DnsConfig.

If you specify a health check configuration, you can specify either HealthCheckCustomConfig or HealthCheckConfig but not both.

Health checks are basic Route 53 health checks that monitor an AWS endpoint. For information about pricing for health checks, see Amazon Route 53 Pricing (http://aws.amazon.com/route53/pricing/).

Note the following about configuring health checks.

A and AAAA records

If DnsConfig includes configurations for both A and AAAA records, AWS Cloud Map creates a health check that uses the IPv4 address to check the health of the resource. If the endpoint that is specified by the IPv4 address is unhealthy, Route 53 considers both the A and AAAA records to be unhealthy.

CNAME records

You can't specify settings for HealthCheckConfig when the DNSConfig includes CNAME for the value of Type. If you do, the CreateService request will fail with an InvalidInput error.

Request interval

A Route 53 health checker in each health-checking region sends a health check request to an endpoint every 30 seconds. On average, your endpoint receives a health check request about every two seconds. However, health checkers don't coordinate with one another, so you'll sometimes see several requests per second followed by a few seconds with no health checks at all.

Health checking regions

Health checkers perform checks from all Route 53 health-checking regions. For a list of the current regions, see Regions (http://docs.aws.amazon.com/Route53/latest/APIReference/API_HealthCheckConfig.html#Route53-Type-HealthCheckConfig-Regions).

Alias records

When you register an instance, if you include the AWS_ALIAS_DNS_NAME attribute, AWS Cloud Map creates a Route 53 alias record. Note the following:

  • Route 53 automatically sets EvaluateTargetHealth to true for alias records. When EvaluateTargetHealth is true, the alias record inherits the health of the referenced AWS resource. such as an ELB load balancer. For more information, see EvaluateTargetHealth (http://docs.aws.amazon.com/Route53/latest/APIReference/API_AliasTarget.html#Route53-Type-AliasTarget-EvaluateTargetHealth).

  • If you include HealthCheckConfig and then use the service to register an instance that creates an alias record, Route 53 doesn't create the health check.

Charges for health checks

Health checks are basic Route 53 health checks that monitor an AWS endpoint. For information about pricing for health checks, see Amazon Route 53 Pricing (http://aws.amazon.com/route53/pricing/).

ATTRIBUTES

FailureThreshold => Int

  The number of consecutive health checks that an endpoint must pass or
fail for Route 53 to change the current status of the endpoint from
unhealthy to healthy or vice versa. For more information, see How Route
53 Determines Whether an Endpoint Is Healthy
(http://docs.aws.amazon.com/Route53/latest/DeveloperGuide/dns-failover-determining-health-of-endpoints.html)
in the I<Route 53 Developer Guide>.

ResourcePath => Str

  The path that you want Route 53 to request when performing health
checks. The path can be any value for which your endpoint will return
an HTTP status code of 2xx or 3xx when the endpoint is healthy, such as
the file C</docs/route53-health-check.html>. Route 53 automatically
adds the DNS name for the service. If you don't specify a value for
C<ResourcePath>, the default value is C</>.

If you specify TCP for Type, you must not specify a value for ResourcePath.

REQUIRED Type => Str

  The type of health check that you want to create, which indicates how
Route 53 determines whether an endpoint is healthy.

You can't change the value of Type after you create a health check.

You can create the following types of health checks:

  • HTTP: Route 53 tries to establish a TCP connection. If successful, Route 53 submits an HTTP request and waits for an HTTP status code of 200 or greater and less than 400.

  • HTTPS: Route 53 tries to establish a TCP connection. If successful, Route 53 submits an HTTPS request and waits for an HTTP status code of 200 or greater and less than 400.

    If you specify HTTPS for the value of Type, the endpoint must support TLS v1.0 or later.

  • TCP: Route 53 tries to establish a TCP connection.

    If you specify TCP for Type, don't specify a value for ResourcePath.

For more information, see How Route 53 Determines Whether an Endpoint Is Healthy (http://docs.aws.amazon.com/Route53/latest/DeveloperGuide/dns-failover-determining-health-of-endpoints.html) in the Route 53 Developer Guide.

SEE ALSO

This class forms part of Paws, describing an object used in Paws::ServiceDiscovery

BUGS and CONTRIBUTIONS

The source code is located here: https://github.com/pplu/aws-sdk-perl

Please report bugs to: https://github.com/pplu/aws-sdk-perl/issues