DC/OS 101 - GUI

The DC/OS Web GUI is the primary visual control interface for observing and managing your cluster.

Log in

Enter the IP of a DC/OS master node (or a master node load balancer) in a browser
Select a supported OAuth authorizer (Google, Github, or Microsoft)
Follow the authorizer specific instructions to log in

Install MinitTwit as a DC/OS Service.

Select Services in the left navigation panel to access the service list page
Select Deploy Service to open the service creation screen
On the General tab, enter a service ID unique to the cluster (e.g. minitwit)
On the General tab, enter the amount of Memory to allocate to the service (e.g. 512)
On the Container Settings tab, enter the name or url of a Container Image (e.g. mhausenblas/minitwit)
On the Network tab, under Network Type, select Bridge to enable mapping container ports to host ports
On the Network tab, under Service Endpoints, enter the Container Port used by the service container (e.g. 80)
On the Optional tab, under Accepted Resource Roles, enter slave_public to constrain deployment to public nodes
In JSON Mode, under container.docker.portMappings[0], add "hostPort": 80, to specify which host port to use
In JSON Mode, add "requirePorts": true, so that the service will only be deployed to nodes that have the specified host port available.
Select Deploy to deploy the service

Select Services in the left navigation panel to access the service list page
Select the name of the deployed service (e.g. minitwit) to access the service detail page
Select the Task ID of the task with status Running to access the task detail page
Select the first link in the Endpoints list to access the service itself

Select Services in the left navigation panel to access the service list page
Hover over the name of the deployed service (e.g. minitwit) to show the service actions button
Select the service actions button to show a dropdown of service actions
Select Destroy to destroy the service and its tasks