For a Cloud Foundry-based VMware Tanzu platform, the usual buildpack deployment path is to build your Spring Boot app, target the correct foundation with the Cloud Foundry CLI, and run cf push with the compiled JAR. First confirm which Tanzu product and buildpack your platform operator supports: Cloud Foundry Java buildpacks and Paketo are documented separately, and there is no single buildpack configuration that applies to every Tanzu environment.
Before you deploy: confirm the Tanzu target and buildpack
This procedure applies to a Tanzu environment that exposes the Cloud Foundry API and accepts deployments through the cf CLI. Ask your platform operator for the Cloud Controller API endpoint, the org and space to use, and the Java buildpack family installed or recommended for that foundation. The foundation determines which Java runtimes and buildpack settings are available; do not assume a Java version or buildpack selection based on a different Tanzu installation.
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Cloud Foundry’s guide describes deploying Spring applications with its Java buildpack, while Paketo documents its own buildpack behavior. The commands below show the general Cloud Foundry workflow; check options against the CLI and foundation you actually use.
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Build and test the Spring Boot application
Build the project with its existing Maven or Gradle configuration, then confirm that the resulting JAR runs as expected locally. For a Maven project, Spring’s deployment guidance gives mvn clean package as an example; the artifact path depends on your project configuration.
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mvn clean packageUse the JAR created by your build rather than a source directory. For more detail on the Cloud Foundry deployment flow, see Deploying Spring apps to Cloud Foundry and Spring’s Cloud Foundry deployment guide.
Log in and push the JAR
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Log in to the API endpoint supplied by your platform operator:
cf login -a API-ENDPOINT -
If needed, select the intended org and space using the CLI’s targeting commands. Confirm the current target before deployment so the app is pushed to the right environment.
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Push the built artifact, replacing the sample app name and path with your actual values:
cf push APP-NAME -p target/APP-NAME-VERSION.jar
The platform uses the configured Java buildpack to detect and stage the application. You can also declare the app and artifact path in a Cloud Foundry manifest rather than specifying the path on the command line; consult the manifest and cf push options supported by your installed CLI and foundation.
Choose a route and verify the deployment
By default, Cloud Foundry creates a route using the app name and a domain configured by the administrator. If that hostname is already in use, route mapping can fail. Where foundation policy permits, specify another hostname with -n or request an available random route with --random-route. The Cloud Foundry guide covers these options in its Spring deployment instructions.
When cf push completes, check the app’s state and mapped route, then open the URL. If your application implements a health endpoint, request that endpoint as well; the correct path depends on the app and is not set by the buildpack procedure.
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Staging happens as the platform prepares the application to run. Cloud Foundry Java buildpack staging logs can show downloaded components, configuration, and other buildpack work. If staging or startup fails, inspect the deployment output and app logs using the log facilities in your cf CLI. The Java buildpack overview explains its role and staging output: Cloud Foundry Java buildpack.
Paketo-specific Spring Cloud Bindings
Do not apply Paketo settings to the classic Cloud Foundry Java buildpack, or assume every Tanzu foundation uses Paketo. Paketo’s Spring Boot buildpack adds Spring Cloud Bindings and enables their runtime auto-configuration by default. This can help an app configure supported service connections from runtime bindings.
Paketo documents BPL_SPRING_CLOUD_BINDINGS_DISABLED as the runtime switch and BP_SPRING_CLOUD_BINDINGS_DISABLED as the build-time switch for disabling this behavior. These variables are Paketo-specific; consult Paketo’s Java buildpack documentation and your operator’s guidance before using them.
Troubleshoot common deployment failures
The artifact is not detected
Check that the path passed to -p exists and points to the built JAR, and verify that the foundation’s configured buildpack supports the artifact. Cloud Foundry’s Java buildpack tips describe artifact detection and JAR deployment examples for Maven and Gradle: Using Cloud Foundry Java buildpack.
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The route cannot be mapped
Try a different hostname if the desired host is taken, or use --random-route if random routes are allowed on the foundation.
The app fails during staging or startup
Use the staging output to identify buildpack detection or configuration problems, then inspect app logs for runtime errors. Confirm that the selected buildpack and its Java runtime configuration are supported by the target foundation.
The app runs out of memory
Insufficient memory can prevent startup or cause the platform to terminate an app. Set the allocation based on measured application needs and foundation policy, not a tutorial’s default. Cloud Foundry’s Java tips discuss memory considerations in the Java buildpack guide.
A SQL database connection fails
The Cloud Foundry Java buildpack does not bundle JDBC drivers. If the app connects to a SQL database, include the appropriate driver in the application’s dependencies. The Cloud Foundry Spring guide notes this requirement.
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