This DC/OS 101 tutorial will guide you through the steps necessary to get started using DC/OS.
The tutorial is designed to provide users and applications developers an overview of the basic pieces of DC/OS. We will discuss basic recipes for developing and orchestrating applications for a distributed landscape. To provide hands-on experience, we will develop and deploy multiple applications (including stateful, dockerized, and non-dockerized) on an actual cluster during each step of the tutorial. To provide even more rationale and background information the tutorial also includes optional deep dives into relevant topics.
The DC/OS 101 tutorial includes the following sessions:
We now have a working persistence layer -redis- running in our cluster.
In this section we deploy the first app connecting to redis. Note that we deliberately choose to focus on the principles and to deploy a very simple app with no further logic than connecting to redis.
Our application in the previous part used redis.marathon.l4lb.thisdcos.directory:6379 as the address for connecting to redis. As redis might be running on any agent in the cluster (and furthermore on different ports), how does this address link to the actual running redis instance?
In this section, we will learn about DC/OS service discovery by exploring the different options for service discovery for apps in DC/OS.
We already deployed an app which is running internally in our cluster (i.e., it is not targeted to users directly). Next, will deploy an app which provides a web UI to users.
We want to deploy this app natively, i.e., not relying on Docker (which is third-party dependency and hence adds complexity).