GitHub hosted runners are running on Standard_DS2_v2 virtual machines in Microsoft Azure. Each virtual machine has 2 vCPUs and 7 GB of RAM. The per-hour rate for hosted Linux runner is $0.48 ($0.008 / minute).
AWS Fargate pricing has two dimensions; vCPU and memory. The per-hour rate for similarly sized Tasks (2 vCPUs and 7 GB of RAM) is $0.112075 on on-demand capacity and $0.0336225 on spot capacity.
| Hosting | Price / hour |
|---|---|
| GitHub hosted | $0,48 |
AWS Fargate, On-demand (eu-west-1) |
$0.112075 |
AWS Fargate, Spot (eu-west-1) |
$0.0336225 |
However, the price comparison is not quite as straightforward. Each GitHub account receives a certain amount of free minutes.
| Product | Free minutes / month |
|---|---|
| GitHub Free | 2000 min. (33,33 hours) |
| GitHub Pro | 3000 min. (50 hours) |
| GitHub Team | 10000 min. (166,67 hours) |
| GitHub Team | 50000 min. (833,33 hours) |
But if we e.g. double the hours used per month we'll start to find some differences:
| Product | Paid hours / month | GitHub hosted | Fargate, On-demand | Fargate, Spot |
|---|---|---|---|---|
| GitHub Free | 33,33 hours | $16.00 |
$3.74 |
$1.12 |
| GitHub Pro | 50 hours | $24.00 |
$5.60 |
$1.68 |
| GitHub Team | 166,67 hours | $80.00 |
$18.68 |
$5.60 |
| GitHub Team | 833,33 hours | $400.00 |
$93.40 |
$28.02 |
Also, taking account of the fact that GitHub also provides one size of hosted-runner, this is starting to look very interesting to me!
Unfortunately AWS CDK does not support ECS Capacity Providers, and thus Fargate Spot capacity yet. :/