README.adoc

Managing CF Apps with an MTA

Table of Contents

• Try out
  • Deploy an MTA containing an cf app.
    • Deploy from directory
    • Build and Deploy
  • Examine the result
    • List the deployed mta
    • List app status and attributes
    • List app env variables and find the defined properties in the User Provided section

This example shows how to model a simple CF application in an MTA, deploy it set some attributes and configure the deployer behavior

Try out

Deploy an MTA containing an cf app.

The example demostrate 2 different approaches that lead to the same result.

Deploy from directory

That approach uses deployment descritpr mtad.yaml and ready application binaries appBits.zip:

cf deploy ./ -f ;

Build and Deploy

The approach is using development descriptor mta.yaml`and application binaries `appBits.zip to build MTAR. Then the MTAR is deployed.

mbt build -p cf -t . ;
cf deploy a.cf.app_0.0.0.mtar -f ;

Note	See mta.yaml or mtad.yaml for details on the attributes and environment and deployer parameters used.

Examine the result

List the deployed mta

$ cf mta a.cf.app ;
Showing health and status ...
OK
Version: 0.0.0
Apps:
name        requested state   instances   memory   disk   urls
my-cf-app   started           1/1         1G       1G     orgname-spacename-my-mta-managed-app-module.cfapps.sap.hana.ondemand.com, my-custom-host.at.some.domain

List app status and attributes

$cf app my-cf-app ;
Showing health and status for app my-cf-app in org ********** / space ******** as **********...

name:              my-cf-app
requested state:   started
routes:            orgname-spacename-my-mta-managed-app-module.cfapps.sap.hana.ondemand.com, my-custom-host.at.some.domain
last uploaded:     Thu 22 Aug 00:46:00 EEST 2019
stack:             cflinuxfs3
buildpacks:        staticfile

type:           web
instances:      1/1
memory usage:   1024M
     state     since                  cpu    memory        disk         details
#0   running   2019-08-21T21:46:14Z   1.1%   12.2M of 1G   5.3M of 1G

List app env variables and find the defined properties in the User Provided section

$cf env my-cf-app | grep "MY_CF_APP_ENV_VARIABLE" ;
  MY_CF_APP_ENV_VARIABLE: HELLO MTA
$cf env my-cf-app | grep "A_MORE_COMPLEX_VAR" ;
  A_MORE_COMPLEX_VAR: { "can be an entire":"json object", "with": [ "nested": { "elements": "https://each-host-is-registered-for-all-specified-domans.cfapps.sap.hana.ondemand.com" } ]