- Ruby
- Bundler
- BOSH
# Clone the repository
git clone https://github.com/nttlabs/bosh_scaler.git
cd bosh_scaler
# Create a config file
vi ./config/sample.yml
# Install required gems
bundle install
# Run
bundle exec ./bin/scaler ./config/sample.ymlSee config/sample.yml for the basic configuration.
We recommend that you should create a new BOSH user such as scaler for AutoScaler with the bosh create user command so that you can filter BOSH tasks invoked by AutoScaler.
You can define scaling rules in your deployment manifests.
---
deployment: cf
jobs:
- name: router
instances: 1
resource_pool: medium_z1
templates:
- gorouter
- name: runner
instances: 3
resource_pool: large_z1
templates:
- dea_next
- dea_logging_agent
...snip...
scale:
jobs:
- name: router # Job name to scale
cooldown: 300 # seconds
out: # Scaling-out
limit: 10 # maximum instances
unit: 2 # Adds 2 instances at every event (default: 1)
conditions: # Joined with OR for scaling-out
- class: CpuAverage # CPU usage average
larger_than: 80 # Threshold (percent)
duration: 300 # For calculating average
- class: MemoryAverage # Memory usage average
larger_than: 90 # Threshold (percent)
duration: 300 # For calculating average
in: # Scaling-in
limit: 3 # minimum instances
conditions: # Joined with AND for scaling-in
- class: CpuAverage # CPU usage average
smaller_than: 10 # percent
duration: 300 # For calculating average
- class: MemoryAverage # Memory usage average
smaller_than: 20 # Threshold (percent)
duration: 300 # For calculating average
- name: runner
cooldown: 300
out:
limit: 20
conditions:
- class: CfVarzAverage # Cloud Foundry Metrics
varz_job: DEA # varz job name
varz_key: available_memory_ratio # varz key name
smaller_than: 10
duration: 300
in:
limit: 3
conditions:
- class: CfVarzAverage
varz_job: DEA
varz_key: available_memory_ratio
larger_than: 80
duration: 300- CpuAverage
- Average CPU percentage during
duration
- Average CPU percentage during
- MemoryAverage
- Avarage memory percentage during
duration
- Avarage memory percentage during
- LoadAverage1
- Latest Load Average in 1 minute
- LoadAverage5
- Latest Load Average in 5 minutes
- LoadAverage15
- Latest Load Average in 15 minute
- CfVarzAverage
- Average CF Varz value during
duration
- Average CF Varz value during
BOSH AutoScaler supports input from Cloud Foundry Collector. To use the CfVarzAverage condtion in your manifest file, send metrics to yoru AutoScaler with the TSDB historian.
properties:
collector:
use_tsdb: true
deployment_name: cf
opentsdb:
address: 192.168.15.139 # your AutoScaler address
port: 4567 # your AutoScaler portBOSH AutoScaler has a Web UI on which you can confirm loaded rules and auto scaling task log. Access http://<your_ip>:8888/ on your web brower.
Fork the repository and send a new Pull Request with your topic branch.
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