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v0.2.0 Latest Latest Go to latest Published: Jun 8, 2023 License: Apache-2.0 Imports: 11 Imported by: 1

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Repository

github.com/silinternational/awsops

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Documentation ¶

Index ¶

Constants
Variables
func DescribeEcsServicesForArns(awsSess *session.Session, serviceArns []*string, cluster string) ([]*ecs.Service, error)
func DetachAndReplaceAsgInstances(awsSess *session.Session, asgName string, instancesToTerminate []*string)
func GetAsg(awsSess *session.Session, asgName string) *autoscaling.Group
func GetAsgNameForEcsCluster(awsSess *session.Session, cluster string) string
func GetAsgServerCount(awsSess *session.Session, asgName string) (desired int64, min int64, max int64)
func GetInstanceIDsForEcsCluster(awsSess *session.Session, clusterName string) []*string
func GetInstanceIPsForEcsCluster(awsSess *session.Session, clusterName string) []string
func GetInstanceListForAsg(awsSess *session.Session, asgName string) []*string
func GetInstanceListForEcsCluster(awsSess *session.Session, clusterName string) []*ecs.ContainerInstance
func GetInstanceTypeForAsg(awsSess *session.Session, asgName string) string
func GetInstanceTypeFromLaunchConfiguration(awsSess *session.Session, launchConfigurationName string) string
func GetInstanceTypeFromLaunchTemplate(awsSess *session.Session, launchTemplateName string) string
func GetLargestDesiredCountFromEcsServices(ecsServices []*ecs.Service) int64
func GetPendingEcsTasksCount(awsSess *session.Session, cluster string) int64
func HowManyServersNeededForAsg(serverType string, resourcesNeeded ResourceSizes) int64
func LambdaInvoke(awsSess *session.Session, functionName, payload string) (*lambda.InvokeOutput, error)
func ListServicesForEcsCluster(awsSess *session.Session, cluster string) []*ecs.Service
func RightSizeAsgForEcsCluster(awsSess *session.Session, cluster string, atLeastServiceDesiredCount bool) error
func UpdateAsgServerCount(awsSess *session.Session, asgName string, serverCount int64) error
type InstanceType
type ResourceSizes
- func GetMemoryCpuNeededForEcsServices(awsSess *session.Session, ecsServices []*ecs.Service) ResourceSizes

Constants ¶

View Source

const (
	SingleCPUUnits int64 = 1024
	MbInGb         int64 = 1024
	AgentSize      int64 = 39 // memory consumed by the ECS agent
)

Variables ¶

View Source

var InstanceTypes = map[string]InstanceType{
	"t2.nano": {
		CPUUnits: 1 * SingleCPUUnits,
		MemoryMb: MbInGb/2 - AgentSize,
	},
	"t2.micro": {
		CPUUnits: 1 * SingleCPUUnits,
		MemoryMb: 1*MbInGb - AgentSize,
	},
	"t2.small": {
		CPUUnits: 1 * SingleCPUUnits,
		MemoryMb: 2*MbInGb - AgentSize,
	},
	"t2.medium": {
		CPUUnits: 2 * SingleCPUUnits,
		MemoryMb: 4*MbInGb - AgentSize,
	},
	"t2.large": {
		CPUUnits: 2 * SingleCPUUnits,
		MemoryMb: 8*MbInGb - AgentSize,
	},
	"t2.xlarge": {
		CPUUnits: 4 * SingleCPUUnits,
		MemoryMb: 16*MbInGb - AgentSize,
	},
	"t2.2xlarge": {
		CPUUnits: 8 * SingleCPUUnits,
		MemoryMb: 32*MbInGb - AgentSize,
	},
	"t3.nano": {
		CPUUnits: 2 * SingleCPUUnits,
		MemoryMb: MbInGb/2 - AgentSize,
	},
	"t3.micro": {
		CPUUnits: 2 * SingleCPUUnits,
		MemoryMb: 1*MbInGb - AgentSize,
	},
	"t3.small": {
		CPUUnits: 2 * SingleCPUUnits,
		MemoryMb: 2*MbInGb - AgentSize,
	},
	"t3.medium": {
		CPUUnits: 2 * SingleCPUUnits,
		MemoryMb: 4*MbInGb - AgentSize,
	},
	"t3.large": {
		CPUUnits: 2 * SingleCPUUnits,
		MemoryMb: 8*MbInGb - AgentSize,
	},
	"t3.xlarge": {
		CPUUnits: 4 * SingleCPUUnits,
		MemoryMb: 16*MbInGb - AgentSize,
	},
	"t3.2xlarge": {
		CPUUnits: 8 * SingleCPUUnits,
		MemoryMb: 32*MbInGb - AgentSize,
	},
}

Functions ¶

func DescribeEcsServicesForArns ¶

func DescribeEcsServicesForArns(awsSess *session.Session, serviceArns []*string, cluster string) ([]*ecs.Service, error)

func DetachAndReplaceAsgInstances ¶

func DetachAndReplaceAsgInstances(awsSess *session.Session, asgName string, instancesToTerminate []*string)

func GetAsg ¶

func GetAsg(awsSess *session.Session, asgName string) *autoscaling.Group

func GetAsgNameForEcsCluster ¶

func GetAsgNameForEcsCluster(awsSess *session.Session, cluster string) string

func GetAsgServerCount ¶

func GetAsgServerCount(awsSess *session.Session, asgName string) (desired int64, min int64, max int64)

func GetInstanceIDsForEcsCluster ¶

func GetInstanceIDsForEcsCluster(awsSess *session.Session, clusterName string) []*string

func GetInstanceIPsForEcsCluster ¶

func GetInstanceIPsForEcsCluster(awsSess *session.Session, clusterName string) []string

func GetInstanceListForAsg ¶

func GetInstanceListForAsg(awsSess *session.Session, asgName string) []*string

func GetInstanceListForEcsCluster ¶

func GetInstanceListForEcsCluster(awsSess *session.Session, clusterName string) []*ecs.ContainerInstance

func GetInstanceTypeForAsg ¶

func GetInstanceTypeForAsg(awsSess *session.Session, asgName string) string

func GetInstanceTypeFromLaunchConfiguration ¶

func GetInstanceTypeFromLaunchConfiguration(awsSess *session.Session, launchConfigurationName string) string

func GetInstanceTypeFromLaunchTemplate ¶

func GetInstanceTypeFromLaunchTemplate(awsSess *session.Session, launchTemplateName string) string

func GetLargestDesiredCountFromEcsServices ¶

func GetLargestDesiredCountFromEcsServices(ecsServices []*ecs.Service) int64

func GetPendingEcsTasksCount ¶

func GetPendingEcsTasksCount(awsSess *session.Session, cluster string) int64

func HowManyServersNeededForAsg ¶

func HowManyServersNeededForAsg(serverType string, resourcesNeeded ResourceSizes) int64

HowManyServersNeededForAsg computes the theoretical number of servers needed based on the total resources needed, assuming near-perfect utilization of server resources. It does not take into account the "wasted" resources on an individual server when the free resources are not sufficient to place any of the desired containers.

func LambdaInvoke ¶

func LambdaInvoke(awsSess *session.Session, functionName, payload string) (*lambda.InvokeOutput, error)

func ListServicesForEcsCluster ¶

func ListServicesForEcsCluster(awsSess *session.Session, cluster string) []*ecs.Service

func RightSizeAsgForEcsCluster ¶

func RightSizeAsgForEcsCluster(awsSess *session.Session, cluster string, atLeastServiceDesiredCount bool) error

func UpdateAsgServerCount ¶

func UpdateAsgServerCount(awsSess *session.Session, asgName string, serverCount int64) error

Types ¶

type InstanceType ¶

type InstanceType struct {
	MemoryMb int64
	CPUUnits int64
}

type ResourceSizes ¶ added in v0.2.0

type ResourceSizes struct {
	TotalCPU       int64
	TotalMemory    int64
	LargestCPU     int64
	LargestMemory  int64
	SmallestCPU    int64
	SmallestMemory int64
}

func GetMemoryCpuNeededForEcsServices ¶

func GetMemoryCpuNeededForEcsServices(awsSess *session.Session, ecsServices []*ecs.Service) ResourceSizes

Source Files ¶

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