CF example with context paths

example-context-paths.md

Example using context paths:

Using test app: https://github.com/cloudfoundry/cf-acceptance-tests/tree/master/assets/hello-routing and bosh-lite. This app will display the VCAP_APPLICATION name of the running app.

i.e. Hello, <VCAP_APPLICATION> at index <CF_INSTANCE_INDEX>

Push app

cf push hello

Curl app and see the VCAP_APPLICATION

curl hello.bosh-lite.com
Hello, hello at index: 0!

Push 2nd app

cf push hello2

Curl 2nd app and see the VCAP_APPLICATION

curl hello2.bosh-lite.com
Hello, hello2 at index: 0!

List apps / urls

cf apps

Getting apps in org o / space s as admin...
OK

name     requested state   instances   memory   disk   urls
hello    started           1/1         256M     1G     hello.bosh-lite.com
hello2   started           1/1         256M     1G     hello2.bosh-lite.com

Map a route with a context path and associate with 2nd app deployed

cf map-route hello2 bosh-lite.com --hostname hello --path v2

Creating route hello.bosh-lite.com/v2 for org o / space s as admin...
OK
Adding route hello.bosh-lite.com/v2 to app hello2 in org o / space s as admin...
OK

List routes:

cf routes
Getting routes as admin ...

space   host     domain          path   apps
s       hello    bosh-lite.com          hello
s       hello2   bosh-lite.com          hello2
s       hello    bosh-lite.com   /v2    hello2

Also on bosh-lite, you can dump the gorouter routing table to see routes and info:

curl http://router:router@10.244.0.22:8080/routes  | jq .

You should see something like this for these route entries:

  "hello.bosh-lite.com": [
    {
      "address": "10.244.0.26:61012",
      "ttl": 0
    }
  ],
  "hello.bosh-lite.com/v2": [
    {
      "address": "10.244.0.26:61013",
      "ttl": 0
    }
  ],
  "hello2.bosh-lite.com": [
    {
      "address": "10.244.0.26:61013",
      "ttl": 0
    }
  ],

Curl route with context path and see the VCAP_APPLICATION It should route to the 2nd app deployed.

curl hello.bosh-lite.com/v2
Hello, hello2 at index: 0!