Istio Scaling

This repository is for testing istio scalability on Cloud Foundry.

Prerequisites

• Working installation of Go
• Valid $GOPATH

Create a config file

cat << EOF > "${PWD}/config.json"
{
  "cf_admin_user": "admin",
  "cf_admin_password": "<admin password>",
  "cf_system_domain": "<system-domain>",
  "cf_istio_domain": "istio.<system-domain>",
  "datadog_api_key": "<key>",
  "cf_org_name": "some-org",
  "cf_space_name": "some-space"
}
EOF

cf_org_name and cf_space_name are optional. If they are not provided, a random name will be created.

datadog_api_key is also optional. If provided, the metrics will be emitted to datadog.

Create a plan file

cat << EOF > "${PWD}/plan.json"
{
  "number_of_apps_to_push": 10,
  "number_of_apps_to_curl": 10,
  "passing_threshold": 90,
  "app_instances": 1,
  "app_mem_size": "16M",
  "cleanup": false
}
EOF

number_of_apps_to_curl must be greater than or equal to number_of_apps_push. If greater than, then the test suite is able to curl already-existing apps which allows for incremental scaling.

passing_threshold is the percentage of curls that must succeed for the test to pass. e.g. 99.9%

Running Tests

CONFIG="$PWD/config.json" PLAN="$PWD/plan.json" scripts/test

Running CATS

You can run CATS after running scalling tests as you would usually, however be sure to the set the flag cleanup in the plan file to false and manually delete your org.

Assets

• closer-golang.tgz: This app closes connections which results in a 503 on curl.
• hello-golang.tgz: This app responds with ‘hello’ on curl.