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Allow preemptible workers on AWS via spot instances

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* Add `worker_price` to allow worker spot instances. Defaults
to empty string for the worker autoscaling group to use regular
on-demand instances.
* Add `spot_price` to internal `workers` module for spot worker
pools
* Note: Unlike GCP `preemptible` workers, spot instances require
you to pick a bid price.
This commit is contained in:
Dalton Hubble
2018-04-29 13:19:00 -07:00
parent 385584b712
commit cc29530ba0
12 changed files with 52 additions and 2 deletions
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3
docs/advanced/worker-pools.md
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@ -68,10 +68,11 @@ The AWS internal `workers` module supports a number of [variables](https://githu
| instance_type | EC2 instance type | "t2.small" | "t2.medium" |
| os_channel | Container Linux AMI channel | stable| "beta", "alpha" |
| disk_size | Size of the disk in GB | 40 | 100 |
| spot_price | Spot price in USD for workers. Leave as default empty string for regular on-demand instances | "" | "0.10" |
| service_cidr | Must match `service_cidr` of cluster | "10.3.0.0/16" | "10.3.0.0/24" |
| cluster_domain_suffix | Must match `cluster_domain_suffix` of cluster | "cluster.local" | "k8s.example.com" |
Check the list of valid [instance types](https://aws.amazon.com/ec2/instance-types/).
Check the list of valid [instance types](https://aws.amazon.com/ec2/instance-types/) or per-region and per-type [spot prices](https://aws.amazon.com/ec2/spot/pricing/).
## Google Cloud

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docs/atomic/aws.md
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@ -227,6 +227,7 @@ Reference the DNS zone id with `"${aws_route53_zone.zone-for-clusters.zone_id}"`
| worker_type | EC2 instance type for workers | "t2.small" | See below |
| disk_size | Size of the EBS volume in GB | "40" | "100" |
| disk_type | Type of the EBS volume | "gp2" | standard, gp2, io1 |
| worker_price | Spot price in USD for workers. Leave as default empty string for regular on-demand instances | "" | "0.10" |
| networking | Choice of networking provider | "calico" | "calico" or "flannel" |
| network_mtu | CNI interface MTU (calico only) | 1480 | 8981 |
| host_cidr | CIDR IPv4 range to assign to EC2 instances | "10.0.0.0/16" | "10.1.0.0/16" |

1
docs/cl/aws.md
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@ -244,6 +244,7 @@ Reference the DNS zone id with `"${aws_route53_zone.zone-for-clusters.zone_id}"`
| os_channel | Container Linux AMI channel | stable | stable, beta, alpha |
| disk_size | Size of the EBS volume in GB | "40" | "100" |
| disk_type | Type of the EBS volume | "gp2" | standard, gp2, io1 |
| worker_price | Spot price in USD for workers. Leave as default empty string for regular on-demand instances | "" | "0.10" |
| controller_clc_snippets | Controller Container Linux Config snippets | [] | |
| worker_clc_snippets | Worker Container Linux Config snippets | [] | |
| networking | Choice of networking provider | "calico" | "calico" or "flannel" |