Deploy the App

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In this step, you will deploy the app to Swisscom Application Cloud.

Push your app to the cloud by executing the following command and replacing the “my-random-hostname” with your own hostname. This will be part of the URL your app will be reached at and it has to be globally unique so be creative. The -m 64M tells Cloud Foundry to use 64MB of memory for our app which should be plenty.

$ cf push my-go-app -m 64M -n my-random-hostname
Creating app my-go-app in org MyOrg / space MySpace as user@mydomain.com...
OK

Creating route my-random-hostname.scapp.io...
OK

Binding my-random-hostname.scapp.io to my-go-app...
OK

Uploading my-go-app...
Uploading app files from: /Users/taafuto1/go/src/github.com/swisscom/cf-sample-app-go
Uploading 912B, 3 files
Done uploading
OK

...

OK

App my-go-app was started using this command `cf-sample-app-go`

Showing health and status for app my-go-app in org MyOrg / space MySpace as user@mydomain.com...
OK

requested state: started
instances: 1/1
usage: 64M x 1 instances
urls: my-random-hostname.scapp.io
last uploaded: Mon Nov 7 13:59:18 UTC 2016
stack: cflinuxfs2
buildpack: Go

     state     since                    cpu    memory        disk         details
#0   running   2016-11-07 02:59:51 PM   0.0%   3.3M of 64M   8.7M of 1G

The application is now deployed. Ensure that the app is running:

$ cf app my-go-app
Showing health and status for app my-go-app in org MyOrg / space MySpace as user@mydomain.com...
OK

requested state: started
instances: 1/1
usage: 64M x 1 instances
urls: my-random-hostname.scapp.io
last uploaded: Mon Nov 7 13:59:18 UTC 2016
stack: cflinuxfs2
buildpack: Go

     state     since                    cpu    memory      disk         details
#0   running   2016-11-07 02:59:51 PM   0.0%   7M of 64M   8.7M of 1G

Now visit the app at the URL. You can find the URL in the urls property of the statement above.

Binary buildpack

By building your app locally using the go build command, you can also push your application as a binary file using the Binary buildpack. This method allows you to manage dependencies locally and is an alternative to using the standard Go buildpack. To try it out, execute the following commands:

$ GOOS=linux GOARCH=amd64 go build
$ cf push my-go-app -b binary_buildpack -c './cf-sample-app-go'

The first line tells go to cross-compile your app for linux so that it runs in the cloud. The -c flag specifies the command to start your app with. In our case, that’s just executing the binary.