I’m a big Perl fan. My first test application in the Cloud Foundry in the SAP Cloud Platform was thus a Perl application. In this article, I show you how easy Cloud Foundry in the SAP Cloud Platform is and how fast you can publish applications on the Internet.
All you need is a free trial account and 10 minutes time.
Cloud Foundry 101
Cloud Foundry, which is fully supported on SAP Cloud Platform, is a platform as a service (PaaS). This requires a slightly different mindset than the one used for managing a full server. In Cloud Foundry you have aplications which run with the support of buildpacks and services which your code can use. In the case of Cloud Foundry, you manage the platform with a command line tool called
Download and install Cloud Foundry Command Line Interface (cf CLI) for your operating system: http://docs.cloudfoundry.org/cf-cli/
Open the command line and type:
The API endpoint can be found in the Cloud Cockpit.
nils@imac5k ~ $ cf login API endpoint> https://api.cf.eu10.hana.ondemand.com Email> nils.knieling@█████ Password> Authenticating... OK Targeted org S0009028968trial_trial Targeted space dev API endpoint: https://api.cf.eu10.hana.ondemand.com (API version: 2.92.0) User: nils.knieling@█████ Org: S0009028968trial_trial Space: dev
git clone https://github.com/oetiker/sourcey-buildpack.git and go to the folder with the sample application
nils@imac5k $ git clone https://github.com/oetiker/sourcey-buildpack.git nils@imac5k $ cd sourcey-buildpack/example/perl-dancer2/
cf push. It takes something until everything has been built.
nils@imac5k perl-dancer2 $ cf push Using manifest file /Users/nils/Projekte/github/sourcey-buildpack/example/perl-dancer2/manifest.yml Creating app example-perl-dancer2 in org S0009028968trial_trial / space dev as nils.knieling@█████... OK Creating route example-perl-dancer2-greedy-holdup.cfapps.eu10.hana.ondemand.com... OK Binding example-perl-dancer2-greedy-holdup.cfapps.eu10.hana.ondemand.com to example-perl-dancer2... OK Uploading example-perl-dancer2... Uploading app files from: /Users/nils/Projekte/github/sourcey-buildpack/example/perl-dancer2 Uploading 5K, 8 files Done uploading OK Starting app example-perl-dancer2 in org S0009028968trial_trial / space dev as nils.knieling@█████... Creating container Successfully created container Downloading app package... Downloaded app package (4.7K) Staging... Environment - WORK_DIR=/home/vcap/tmp/sourcey.51 - BUILD_DIR=/tmp/app - APP_DIR=app - PREFIX=/home/vcap/app/sourcey - CACHE_DIR=/tmp/cache/final Downloading Perl 5.24.0 Configuring Perl 5.24.0 Building Perl 5.24.0 Installing Perl 5.24.0 Downloading cpanminus Successfully installed Dancer2-0.205001 89 distributions installed Moving binaries to /tmp/app ready for uploading Saveing a copy of your binaries to /tmp/cache/final for future use Uploading droplet, build artifacts cache... Exit status 0 Staging complete Uploading build artifacts cache... Uploading droplet... Uploaded build artifacts cache (14.8M) Uploaded droplet (14.8M) Uploading complete Stopping instance cf03acbd-2428-499f-8699-b1e817d960c3 Destroying container Successfully destroyed container 1 of 1 instances running App started OK App example-perl-dancer2 was started using this command `PATH=$HOME/sourcey/bin:$PATH ./SourceyStart.sh` Showing health and status for app example-perl-dancer2 in org S0009028968trial_trial / space dev as nils.knieling@█████... OK requested state: started instances: 1/1 usage: 256M x 1 instances urls: example-perl-dancer2-greedy-holdup.cfapps.eu10.hana.ondemand.com last uploaded: Sat Sep 2 17:24:37 UTC 2017 stack: cflinuxfs2 buildpack: https://github.com/oetiker/sourcey-buildpack state since cpu memory disk details #0 running 2017-09-02 07:30:00 PM 0.0% 0 of 256M 0 of 1G
Finished. The application can be opened. The URL can be found in the output of cf push or in the Cloud Cockpit.
And one more thing…
How about SSH access? No problem.
cf enable-ssh example-perl-dancer2 and
cf ssh example-perl-dancer2.
nils@imac5k perl-dancer2 $ cf enable-ssh example-perl-dancer2 Enabling ssh support for 'example-perl-dancer2'... OK nils@imac5k perl-dancer2 $ cf ssh example-perl-dancer2 vcap@384c2d4a-60dc-417c-7fa5-f257:~$ uname -a Linux 384c2d4a-60dc-417c-7fa5-f257 4.4.0-83-generic #106~14.04.1-Ubuntu SMP Mon Jun 26 18:10:19 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux vcap@384c2d4a-60dc-417c-7fa5-f257:~$ /home/vcap/app/sourcey/bin/perl -v This is perl 5, version 24, subversion 0 (v5.24.0) built for x86_64-linux-thread-multi Copyright 1987-2016, Larry Wall Perl may be copied only under the terms of either the Artistic License or the GNU General Public License, which may be found in the Perl 5 source kit. Complete documentation for Perl, including FAQ lists, should be found on this system using "man perl" or "perldoc perl". If you have access to the Internet, point your browser at http://www.perl.org/, the Perl Home Page.
I wish you a lot of fun with Cloud Foundry in SAP Cloud Platform 👍