Deploy Your First App

Deploy an application using drycc cli.

Determine Your Host and Hostname Values

Drycc workflow requires a wildcard DNS record to dynamically map app names to the router.

User should already have DNS set up pointing to their known host. The $hostname value can be calculated by prepending drycc. to the value set in global.platformDomain.

Login to Workflow

Workflow use the passport component to create and authorize users. If you already have an account, use drycc login to authenticate against the Drycc Workflow API.

$ drycc login
Opening browser to
Waiting for login... .o.Logged in as admin
Configuration file written to /root/.drycc/client.json

Or you can login with username and password

$ drycc login --username=demo --password=demo
Configuration file written to /root/.drycc/client.json

Deploy an Application

Drycc Workflow supports three different types of applications, Buildpacks, Dockerfiles and Container Images. Our first application will be a simple Container Image-based application, so you don’t have to wrestle with checking out code.

Run drycc create to create a new application on Drycc Workflow. If you do not specify a name for your application, Workflow automatically generates a friendly (and sometimes funny) name.

$ drycc create --no-remote
Creating Application... done, created proper-barbecue
If you want to add a git remote for this app later, use `drycc git:remote -a proper-barbecue`

Our application has been created and named proper-barbecue. As with the drycc hostname, any HTTP traffic to proper-barbecue will be automatically routed to your application pods by the edge router.

Let’s use the CLI to tell the platform to deploy an application and then use curl to send a request to the app:

$ drycc pull drycc/example-go -a proper-barbecue
Creating build... done
$ curl http://proper-barbecue.$hostname
Powered by Drycc

!!! note If you see a 404 error, make sure you specified your application name with -a <appname>!

Workflow’s edge router knows all about application names and automatically sends traffic to the right application. The router sends traffic for to your app, just like was sent to the Workflow API service.

Change Application Configuration

Next, let’s change some configuration using the CLI. Our example app is built to read configuration from the environment. By using drycc config:set we can change how the application behaves:

$ drycc config:set POWERED_BY="Container Images + Kubernetes" -a proper-barbecue
Creating config... done

UUID                                    OWNER    NAME                 VALUE
04bb6e45-9221-4843-a1f9-acc7fded3b06    dev      POWERED_BY           Container Images + Kubernetes

Behind the scenes, Workflow creates a new release for your application and uses Kubernetes to provide a zero-downtime rolling deploy to the new release!

Validate that our configuration change has worked:

$ curl
Powered by Container Images + Kubernetes

Scale Your Application

Last, let’s scale our application by adding more application processes. Using the CLI you can easily add and remove additional processes to service requests:

$ drycc scale web=2 -a proper-barbecue
Scaling processes... but first, coffee!
done in 36s

NAME                                RELEASE    STATE    TYPE       STARTED
proper-barbecue-v18-web-rk644       v18        up       web        2023-12-08T03:09:25UTC
proper-barbecue-v18-web-0ag04       v18        up       web        2023-12-08T03:09:25UTC

Congratulations! You have deployed, configured, and scaled your first application using Drycc Workflow.

Going Further

There is a lot more you can do with Drycc Workflow, play around with the CLI:

!!! important In order to have permission to push an app you must add a SSH key to your user on the Drycc Workflow. For more information, please check Users and SSH Keys and Troubleshooting Workflow.