Copyright | (c) 2013-2021 Brendan Hay |
---|---|
License | Mozilla Public License, v. 2.0. |
Maintainer | Brendan Hay <brendan.g.hay+amazonka@gmail.com> |
Stability | auto-generated |
Portability | non-portable (GHC extensions) |
Safe Haskell | None |
Documentation
data MinimumHealthyHosts Source #
Information about minimum healthy instance.
See: newMinimumHealthyHosts
smart constructor.
MinimumHealthyHosts' | |
|
Instances
newMinimumHealthyHosts :: MinimumHealthyHosts Source #
Create a value of MinimumHealthyHosts
with all optional fields omitted.
Use generic-lens or optics to modify other optional fields.
The following record fields are available, with the corresponding lenses provided for backwards compatibility:
$sel:value:MinimumHealthyHosts'
, minimumHealthyHosts_value
- The minimum healthy instance value.
$sel:type':MinimumHealthyHosts'
, minimumHealthyHosts_type
- The minimum healthy instance type:
HOST_COUNT
: The minimum number of healthy instances as an absolute value.FLEET_PERCENT
: The minimum number of healthy instances as a percentage of the total number of instances in the deployment.
In an example of nine instances, if a HOST_COUNT of six is specified, deploy to up to three instances at a time. The deployment is successful if six or more instances are deployed to successfully. Otherwise, the deployment fails. If a FLEET_PERCENT of 40 is specified, deploy to up to five instances at a time. The deployment is successful if four or more instances are deployed to successfully. Otherwise, the deployment fails.
In a call to the GetDeploymentConfig
, CodeDeployDefault.OneAtATime
returns a minimum healthy instance type of MOST_CONCURRENCY and a value
of 1. This means a deployment to only one instance at a time. (You
cannot set the type to MOST_CONCURRENCY, only to HOST_COUNT or
FLEET_PERCENT.) In addition, with CodeDeployDefault.OneAtATime, AWS
CodeDeploy attempts to ensure that all instances but one are kept in a
healthy state during the deployment. Although this allows one instance
at a time to be taken offline for a new deployment, it also means that
if the deployment to the last instance fails, the overall deployment is
still successful.
For more information, see AWS CodeDeploy Instance Health in the AWS CodeDeploy User Guide.
minimumHealthyHosts_value :: Lens' MinimumHealthyHosts (Maybe Int) Source #
The minimum healthy instance value.
minimumHealthyHosts_type :: Lens' MinimumHealthyHosts (Maybe MinimumHealthyHostsType) Source #
The minimum healthy instance type:
HOST_COUNT
: The minimum number of healthy instances as an absolute value.FLEET_PERCENT
: The minimum number of healthy instances as a percentage of the total number of instances in the deployment.
In an example of nine instances, if a HOST_COUNT of six is specified, deploy to up to three instances at a time. The deployment is successful if six or more instances are deployed to successfully. Otherwise, the deployment fails. If a FLEET_PERCENT of 40 is specified, deploy to up to five instances at a time. The deployment is successful if four or more instances are deployed to successfully. Otherwise, the deployment fails.
In a call to the GetDeploymentConfig
, CodeDeployDefault.OneAtATime
returns a minimum healthy instance type of MOST_CONCURRENCY and a value
of 1. This means a deployment to only one instance at a time. (You
cannot set the type to MOST_CONCURRENCY, only to HOST_COUNT or
FLEET_PERCENT.) In addition, with CodeDeployDefault.OneAtATime, AWS
CodeDeploy attempts to ensure that all instances but one are kept in a
healthy state during the deployment. Although this allows one instance
at a time to be taken offline for a new deployment, it also means that
if the deployment to the last instance fails, the overall deployment is
still successful.
For more information, see AWS CodeDeploy Instance Health in the AWS CodeDeploy User Guide.