Extreme DEvops Automation

Florian Dambrine - Senior DevOps Engineer - @GumGum

@DambrineF

> Spotinst - Let's be elastic !

  • Bye bye Autoscaling groups and launch configurations, welcome Elastigroups !

Elastigroup is a cluster orchestration and scaling service that ensures maximum availability for minimum costs.

### Launch configuration
resource "aws_launch_configuration" "this" {
  name_prefix                 = "${coalesce(var.lc_name, var.name)}-"
  image_id                    = "${var.image_id}"
  instance_type               = "${var.instance_type}"
  ...

  lifecycle {
    create_before_destroy = true
  }
}

### Autoscaling group
resource "aws_autoscaling_group" "this" {
  name_prefix          = "${coalesce(var.asg_name, var.name)}-"
  launch_configuration = "${aws_launch_configuration.this.name}"
  ...
  load_balancers            = ["${var.load_balancers}"]
}
### Spotinst Elastigroup

resource "spotinst_elastigroup_aws" "this" {
  name        = "${var.name}"
  product     = "Linux/UNIX"

  instance_types_ondemand       = "c5.large"
  instance_types_spot           = ["c5.large", "c4.large"]
  instance_types_preferred_spot = ["c5.large"]

  spot_percentage            = "0"
  fallback_to_ondemand       = true
  utilize_reserved_instances = true

  elastic_load_balancers = [
    "${var.load_balancers}",
  ]
}

asg.tf  VS.  esg.tf

> Spotinst - Let's be elastic !

Why do we love ESGs ?

  • Nicely integrated with Terraform !


     
  • Using Spotinst does not mean
    using spot-instances !

     
  • An Elastigroup offers a lot of
    useful Third-party integrations
     
  • Cleaner code / ease maintenance
resource "spotinst_elastigroup_aws" "this" {
  ...
  spot_percentage            = "0" -> "100"
  fallback_to_ondemand       = true / false
  utilize_reserved_instances = true / false
}
resource "spotinst_elastigroup_aws" "this" {
  ...
  integration_ecs {
    cluster_name             = "${var.name}"
    autoscale_is_enabled     = true
    autoscale_cooldown       = 180
    autoscale_is_auto_config = true
  }
}

 > use case - Containers  workloads

deployment Patterns

  • Must run on spot instances
  • Rolling AMI deployments

Spotinst ECS integration

  • Leveraging ECS autoscaler
  • Gracefully handle ECS registrations / drain

 > use case - run stateful applications

Immutable KAfka amis

  • Automation is great but auto-recovery is better

  • Painless management

Stateful features

  • Private IPs persistance
  • Data volume persistance

 > use case - go further with Spotinst API

>             >               >

---
pipeline:
    esg_scale:
        image: lowess/drone-spotinst-esg-scaler
        account_id: act-1234abcd
        esg_name: va-web--stage
        adjustement: +1
        secrets:
          - source: spotinst_api_token
            target: api_token

Extreme DevOps Automation

By Florian Dambrine

Extreme DevOps Automation

Extreme DevOps Automation; Building a pipeline of Packer, Terraform & Elastigroup Building a reliable and effective deployment pipeline can become a real effort. We’ve gathered the best of breed tools in the market into a one, integrated pipeline that bakes VM / Containers images, provisions infrastructure and manage all of that at extreme scale. Join us in this upcoming webinar to hear from the DevOps experts at Gumgum how they overcame and managed to implement one of the most reliable and fast deployment pipelines. The recording can be found here https://www.youtube.com/watch?v=TELIFPRK-9k&t=2013s

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