Developer Guide

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This guide provides instructions for deploying, running, and managing apps and services with VMware Tanzu Application Service for VMs (TAS for VMs).

Note: To learn app deployment concepts, see the Getting Started with VMware Tanzu Application Service tutorial on the VMware Tanzu website.

Overview

Developing, running, and managing apps on TAS for VMs may include:

• Deploying and scaling apps with diverse languages, frameworks, and dependencies

• Finding software services in the services marketplace, such as databases, email, or message servers

• Creating your own TAS for VMs service based on an external server

• Creating service instances and binding them to your apps

• Streaming app logs to an external log management service

• Troubleshooting app deployment and health


If you do these things, you are a TAS for VMs developer, and the contents of this guide are for you.

Contents

• Considerations for Designing and Running an App in the Cloud: Some considerations you should keep in mind when designing and running an app through TAS for VMs.

• Ops Manager Dev: A lightweight TAS for VMs that runs on your workstation, for developing apps locally.

• cf push: How to use cf push and troubleshoot when running cf push.

  • Pushing an App
  • Deploying with App Manifests
  • App Manifest Attribute Reference
  • Deploying an App with Docker
  • Deploying a Large App
  • Starting, Restarting, and Restaging Apps
  • Pushing an App with Multiple Processes
  • Running cf push Sub-Step Commands
  • Rolling App Deployments
  • Pushing Apps with Sidecar Processes
  • Using Blue-Green Deployment to Reduce Downtime and Risk
  • Troubleshooting App Deployment and Health

• Routes and Domains: How to configure routes and domains.

  • Configuring Routes and Domains
  • Configuring TAS for VMs to Route Traffic to Apps on Custom Ports
  • Routing HTTP/2 and gRPC Traffic to Apps

• Managing Apps with the cf CLI: How to manage apps through the Cloud Foundry Command Line Interface (cf CLI).

  • Running Tasks
  • Scaling an App Using cf scale
  • Using App Health Checks
  • App Revisions
  • Configuring Container-to-Container Networking

• Managing Services: How to use software services from your apps.

  • Services Overview
  • Managing Service Instances with the cf CLI
  • Sharing Service Instances
  • Delivering Service Credentials to an App
  • Managing Service Keys
  • Managing App Requests with Route Services
  • Configuring Play Framework Service Connections
  • Using an External Filesystem (Volume Services)
  • User-Provided Service Instances

• Streaming App Logs: How to stream app logs to third-party log management services.

  • Streaming App Logs to Log Management Services
  • Service-Specific Instructions for Streaming App Logs
  • Streaming App Logs to Splunk
  • Streaming App Logs with Fluentd
  • Streaming App Logs to Azure OMS Log Analytics

• SSH for Apps and Services: How to configure and use SSH access to apps and services.

  • App SSH Overview
  • Accessing Apps with SSH
  • Accessing Services with SSH

• TAS for VMs Environment Variables: The environment variables that the TAS for VMs runtime and buildpacks set for a deployed app.

• Cloud Controller API Client Libraries: Libraries for calling the Cloud Controller, the executive component of TAS for VMs, programmatically.