elb-configure-healthcheck - Online in the Cloud

PROGRAM:

NAME

elb-configure-healthcheck - Configure parameters for checking health of instances

SYNOPSIS

elb-configure-healthcheck
LoadBalancerName --healthy-threshold value --interval value
--target value --timeout value --unhealthy-threshold value
[General Options]

DESCRIPTION

Configure the parameters for checking the health of instances registered
with a LoadBalancer. When the instance fails to respond within timeout
seconds to unhealthy-threshold number of consecutive healthcheck requests,
the instance will be marked as OutOfService. Likewise, when an instance
responds within the specified timeout to healthy-threshold number of
consecutive healthcheck requests, it is marked as InService. target
specifies the protocol and port, and in the case of HTTP.

ARGUMENTS

LoadBalancerName
Name of the LoadBalancer. You can also set this value using "--lb".
Required.

SPECIFIC OPTIONS

--healthy-threshold VALUE
Number of consecutive successful healthchecks that will mark an instance
as InService. Required.

--interval VALUE
Healthcheck interval in seconds. Required.

-t, --target VALUE
Target for healthcheck. <protocol>:<port> or <protocol>:<port>/<path>.
Required.

--timeout VALUE
Healthcheck timeout in seconds. Required.

--unhealthy-threshold VALUE
Number of consecutive failed healthchecks that will mark an instance as
OutOfService. Required.

GENERAL OPTIONS

--aws-credential-file VALUE
Location of the file with your AWS credentials. This value can be set by
using the environment variable 'AWS_CREDENTIAL_FILE'.

-C, --ec2-cert-file-path VALUE
Location of the file with your EC2 X509 certificate. This value can be
set by using the environment variable 'EC2_CERT'.

--connection-timeout VALUE
Specify a connection timeout VALUE (in seconds). The default value is
'30'.

--delimiter VALUE
What delimiter to use when displaying delimited (long) results.

--headers
If you are displaying tabular or delimited results, it includes the
column headers. If you are showing xml results, it returns the HTTP
headers from the service request, if applicable. This is off by default.

-I, --access-key-id VALUE
Specify VALUE as the AWS Access Id to use.

-K, --ec2-private-key-file-path VALUE
Location of the file with your EC2 private key. This value can be set by
using the environment variable 'EC2_PRIVATE_KEY'.

--region VALUE
Specify region VALUE as the web service region to use. This value can be
set by using the environment variable 'EC2_REGION'.

-S, --secret-key VALUE
Specify VALUE as the AWS Secret Key to use.

--show-empty-fields
Show empty fields and rows, using a "(nil)" value. The default is to not
show empty fields or columns.

--show-request
Displays the URL the tools used to call the AWS Service. The default
value is 'false'.

--show-table, --show-long, --show-xml, --quiet
Specify how the results are displayed: tabular, delimited (long), xml, or
no output (quiet). Tabular shows a subset of the data in fixed
column-width form, while long shows all of the returned values delimited
by a character. The xml is the raw return from the service, while quiet
suppresses all standard output. The default is tabular, or 'show-table'.

-U, --url VALUE
This option will override the URL for the service call with VALUE. This
value can be set by using the environment variable 'AWS_ELB_URL'.

INPUT EXAMPLES

Configure a TCP healthcheck with target port 8080 $PROMPT> elb-configure-healthcheck
example-lb --headers --target "TCP:8080" --interval 5 --timeout 3 --unhealthy-threshold 2
--healthy-threshold 2

Configure an HTTP healthcheck with target port 80 with a path $PROMPT>
elb-configure-healthcheck example-lb --headers --target "HTTP:80/status" --interval 5
--timeout 3 --unhealthy-threshold 2 --healthy-threshold 2

OUTPUT

This command returns a table that contains the following:
* TARGET - Healthcheck target.
* INTERVAL - Interval between healthchecks in seconds.
* TIMEOUT - Healthcheck timeout in seconds.
* HEALTHY_THRESHOLD - Configured number of consecutive successful
healthchecks that will mark an instance as InService.
* UNHEALTHY_THRESHOLD - Configured number of consecutive failed healthchecks
that will mark an instance as OutOfService.

OUTPUT EXAMPLES

HEALTH_CHECK TARGET INTERVAL TIMEOUT HEALTHY_THRESHOLD
UNHEALTHY_THRESHOLD
HEALTH_CHECK HTTP:8080/status 5 3 2 2

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