mirror of
https://github.com/jcwimer/docker-swarm-autoscaler
synced 2026-03-24 23:04:43 +00:00
20 lines
1.4 KiB
Markdown
20 lines
1.4 KiB
Markdown
# autoscale-docker-swarm
|
|
This project is intended to bring auto service staling to Docker Swarm. This script uses prometheus paired with cadvisor metrics to determine cpu usage. It then uses a manager node to determine if a service wants to be autoscaled and uses a manager node to scale the service.
|
|
|
|
## Usage
|
|
1. You can deploy prometheus, cadvisor, and docker-swarm-autoscale by running `docker stack deploy -c swarm-autoscale-stack.yml`.
|
|
..* You can also utilize an already deploy prometheus and cadvisor by specifying the PROMETHEUS_URL in docker-swarm-autoscale environment. `swarm-autoscale-stack.yml` shows an example of this.
|
|
..* docker-swarm-autoscale needs a placement contstraint to deploy to a manager. swarm-autoscale-stack.yml` shows an example of this.
|
|
2. For services you want to autoscale you will need a deploy label ```
|
|
deploy:
|
|
labels:
|
|
- "cpu.autoscale=true"
|
|
```
|
|
|
|
## Configuration
|
|
| Setting | Value | Description |
|
|
| --- | --- | --- |
|
|
| `cpu.autoscale` | `true` | Required. This enables autoscaling for a service. Anything other than `true` will not enable it |
|
|
| `cpu.autoscale.minimum` | Integer | Optional. This is the minimum number of replicas wanted for a service. The autoscaler will not downscale below this number |
|
|
| `cpu.autoscale.maximum` | Integer | Optional. This is the maximum number of replicas wanted for a service. The autoscaler will not scale up past this number |
|