1. Brief Introduction – PCF Dev
PCF Dev is a new distribution of Cloud Foundry designed to run on a developer’s laptop or workstation. PCF Dev gives application developers the full Cloud Foundry experience in a lightweight, easy to install package. PCF Dev is intended for application developers who wish to develop and debug their application locally on a full-featured Cloud Foundry. PCF Dev is also an excellent getting started environment for developers interested in learning and exploring Cloud Foundry.
Official website: https://pivotal.io/pcf-dev
2. Installation Steps
- Operating System: macOS Sierra
- Processor: 4 GHz Intel Core i7
- Memory: 32 GB 1600 MHz DDR3
- Storage: 256 GB SSD
- Cloud Foundry Command Line Interface(CF CLI)
- VirtualBox 5.0 or higher installed
- Java 7 or higher so you can build the sample app
- Account for Pivotal Network (Free)
Install Cloud Foundry Command Line Interface through Homebrew
PCF Dev uses the Cloud Foundry Command Line Interface (CF CLI) to push and scale apps.
$ brew tap cloudfoundry/tap $ brew install cf-cli $ cf help cf version 6.23.0+c7866be18-2016-12-22, Cloud Foundry command line tool Usage: cf [global options] command [arguments...] [command options] Before getting started: config login,l target,t help,h logout,lo Application lifecycle: apps,a logs set-env,se push,p ssh create-app-manifest start,st app stop,sp env,e restart,rs scale restage,rg events Services integration: marketplace,m create-user-provided-service,cups services,s update-user-provided-service,uups create-service,cs create-service-key,csk update-service delete-service-key,dsk delete-service,ds service-keys,sk service service-key bind-service,bs bind-route-service,brs unbind-service,us unbind-route-service,urs Route and domain management: routes,r delete-route create-domain domains map-route create-route unmap-route Space management: spaces create-space set-space-role space-users delete-space unset-space-role Org management: orgs,o set-org-role org-users unset-org-role CLI plugin management: plugins add-plugin-repo repo-plugins install-plugin list-plugin-repos Commands offered by installed plugins: Global options: --help, -h Show help -v Print API request diagnostics to stdout 'cf help -a' lists all commands with short descriptions. See 'cf help ' to read about a specific command.
Install PCF Dev
- Download the latest version of PCF Dev CLI plugin from Pivotal Network.
- Unzip downloaded zip file and install the PCF Dev Plugin
- Download and start CF Dev virtual machine
$ unzip pcfdev-v0.23.0+PCF1.9.0-osx.zip && ./pcfdev-v0.23.0+PCF1.9.0-osx Archive: pcfdev-v0.23.0+PCF1.9.0-osx.zip inflating: pcfdev-v0.23.0+PCF1.9.0-osx Plugin successfully installed. Current version: 0.23.0. For more info run: cf dev help $ cf dev start Please sign in with your Pivotal Network account. Need an account? Join Pivotal Network: https://network.pivotal.io Email> firstname.lastname@example.org Password> Downloading VM... Progress: |====================>| 100% VM downloaded. Allocating 4096 MB out of 32768 MB total system memory (15023 MB free). Importing VM... Starting VM... Provisioning VM... Waiting for services to start... ... is now running. To begin using PCF Dev, please run: cf login -a https://api.local.pcfdev.io --skip-ssl-validation Apps Manager URL: https://local.pcfdev.io Admin user => Email: admin / Password: admin Regular user => Email: user / Password: pass
Log into PCF Dev
PCF Dev provides two roles:
- Admin user => Email: admin / Password: admin
- Regular user => Email: user / Password: pass
Here we log in as a regular user
QiJuns-iMac:spring-music Qi$ cf login -a https://api.local.pcfdev.io --skip-ssl-validation API endpoint: https://api.local.pcfdev.io Email> user Password> Authenticating... OK Targeted org pcfdev-org Targeted space pcfdev-space API endpoint: https://api.local.pcfdev.io (API version: 2.65.0) User: user Org: pcfdev-org Space: pcfdev-space
3. Deploy a sample app
Download the source code and use Gradle to assemble the app locally
$ git clone https://github.com/cloudfoundry-samples/spring-music Cloning into 'spring-music'... remote: Counting objects: 1021, done. remote: Total 1021 (delta 0), reused 0 (delta 0), pack-reused 1021 Receiving objects: 100% (1021/1021), 692.39 KiB | 0 bytes/s, done. Resolving deltas: 100% (358/358), done. $ cd ./spring-music $ ./gradlew assemble BUILD SUCCESSFUL Total time: 35.779 secs This build could be faster, please consider using the Gradle Daemon: https://docs.gradle.org/2.14/userguide/gradle_daemon.html
Push the app
$ cf push --hostname spring-music Using manifest file /Users/JuneAzure/Documents/Azure/Workspace/Cloud Foundry/spring-music/manifest.yml Creating app spring-music in org pcfdev-org / space pcfdev-space as user... OK Creating route spring-music.local.pcfdev.io... OK Binding spring-music.local.pcfdev.io to spring-music... OK Uploading spring-music... Uploading app files from: /var/folders/fm/qy7ft97x0gb0mbrwcyt6jz3m0000gn/T/unzipped-app179295168 Uploading 30.2M, 203 files Done uploading OK Starting app spring-music in org pcfdev-org / space pcfdev-space as user... ... Staging complete Uploading droplet, build artifacts cache... Uploading build artifacts cache... Uploading droplet... Uploaded build artifacts cache (109B) Uploaded droplet (75.2M) Uploading complete Destroying container Successfully destroyed container 0 of 1 instances running, 1 starting 0 of 1 instances running, 1 starting 1 of 1 instances running App started OK App spring-music was started using this command `CALCULATED_MEMORY=$($PWD/.java-buildpack/open_jdk_jre/bin/java-buildpack-memory-calculator-2.0.2_RELEASE -memorySizes=metaspace:64m..,stack:228k.. -memoryWeights=heap:65,metaspace:10,native:15,stack:10 -memoryInitials=heap:100%,metaspace:100% -stackThreads=300 -totMemory=$MEMORY_LIMIT) && JAVA_OPTS="-Djava.io.tmpdir=$TMPDIR -XX:OnOutOfMemoryError=$PWD/.java-buildpack/open_jdk_jre/bin/killjava.sh $CALCULATED_MEMORY" && SERVER_PORT=$PORT eval exec $PWD/.java-buildpack/open_jdk_jre/bin/java $JAVA_OPTS -cp $PWD/. org.springframework.boot.loader.JarLauncher` Showing health and status for app spring-music in org pcfdev-org / space pcfdev-space as user... OK ... state since cpu memory disk details #0 running 2016-12-30 09:58:39 PM 0.0% 469.6M of 1G 155.8M of 512M
View the app in browser
In the output above we can find that the URL of the deployed sample app is
4. Connect to a MySQL Database
If a database isn’t available, the sample app uses a temporary in-memory database. This app supports MySQL, Postgres, Redis, and MongoDB.
You can see what type of database this app is using by clicking the info icon in the upper right corner of your app.
Now let’s check what services are available in PCF Dev
$ cf marketplace Getting services from marketplace in org pcfdev-org / space pcfdev-space as user... OK service plans description local-volume free-local-disk Local service docs: https://github.com/cloudfoundry-incubator/local-volume-release/ p-mysql 512mb, 1gb MySQL databases on demand p-rabbitmq standard RabbitMQ is a robust and scalable high-performance multi-protocol messaging broker. p-redis shared-vm Redis service to provide a key-value store TIP: Use 'cf marketplace -s SERVICE' to view descriptions of individual plans of a given service.
Create a MySQL service instance with 512MB plan
$ cf create-service p-mysql 512mb my-spring-db Creating service instance my-spring-db in org pcfdev-org / space pcfdev-space as user... OK
Bind the newly created service to the sample app
$ cf bind-service spring-music my-spring-db Binding service my-spring-db to app spring-music in org pcfdev-org / space pcfdev-space as user... OK TIP: Use 'cf restage spring-music' to ensure your env variable changes take effect
Once a service is bound to an app, environment variables are stored that allow the app to connect to the service after a push, restage, or restart command.
Restart the app and verify the new service is bind to the app
This can be done either through command line or web page
$ cf restart spring-music $ cf services Getting services in org pcfdev-org / space pcfdev-space as user... OK name service plan bound apps last operation my-spring-db p-mysql 512mb spring-music create succeeded
5. Scale the app
$ cf scale spring-music --help NAME: scale - Change or view the instance count, disk space limit, and memory limit for an app USAGE: cf scale APP_NAME [-i INSTANCES] [-k DISK] [-m MEMORY] [-f] OPTIONS: -f Force restart of app without prompt -i Number of instances -k Disk limit (e.g. 256M, 1024M, 1G) -m Memory limit (e.g. 256M, 1024M, 1G) SEE ALSO: push
Increase the number of app instances from one to two
$ cf scale spring-music -i 2 Scaling app spring-music in org pcfdev-org / space pcfdev-space as user... OK QiJuns-iMac:spring-music Qi$ cf app spring-music Showing health and status for app spring-music in org pcfdev-org / space pcfdev-space as user... OK ... state since cpu memory disk details #0 running 2016-12-30 10:33:03 PM 0.6% 461.4M of 1G 155.8M of 512M #1 running 2016-12-30 10:48:47 PM 0.0% 206M of 1G 155.8M of 512M
Increase the memory limit for each app instance
$ cf scale spring-music -m 1G
Increase the disk limit for each app instance
$ cf scale spring-music -k 512M