The WASdev Liberty Openshift cartridge uses the liberty buildpack to download all the necessary components (liberty runtime, jre etc.).
I wonder if it's possible to package all the components ready within the cartridge so that at the point of application creation (rhc app-create or via the web console) the buildpack hasn't got to download all this stuff?
The motivation for that is a faster provisioning of the application and the prevention of timeouts. Concerning components, the websphere liberty runtime and openJDK is all we need so far.
If you are using your own Openshift deployment then packaging all the components within the cartridge is possible. I've updated the cartridge README with instructions for doing this.
For OpenShift Online, downloading the binaries for every app is the only way.
Related
I have installed jboss-fuse-karaf-6.3.0 and created a project in developer studio.
I'm not able to figure out certain concepts around it.
In Apache Fuse how Karaf and Fabric containers are related ? What I understood is Karaf provides runtime environment for the project to run. Fabric is for managing deployments. Is that correct ?
I have started Karaf container by running FuseInstall/bin/start.bat . How to start the fabric container ?
Is http://localhost:8181/hawtio is fabric console ?
Is there a way to directly deploy a project to Karaf container using maven ? or we need to deploy the project to fabric ?
Thanks !
Fuse is an ESB product by Redhat. And yes, you understood it correctly that Karaf provides an OSGI runtime whereas Fabric is for managing multi-container deployments.
You don't start a fabric container. You need a Fabric agent or something similar for that. Not very familiar with it, but you can refer Fuse's documentation here and here regarding this.
Hawtio is basically a visual management console for various containers.
You can definitely deploy your OSGI bundle directly into a Karaf container. There are various commands such as :osgi:install " OR placing the bundle at FuseInstallDir/deploy. The Documentation it explains much better.
A Fabric is just a group of commonly managed Karaf containers. It lets you manage your containers using Profiles instead of just features and bundles.
Once you have started a Karaf container you can CREATE a Fabric. Follow these instructions: https://access.redhat.com/documentation/en-US/Red_Hat_JBoss_Fuse/6.2.1/html-single/Fabric_Guide/index.html#Deploy-Fabric-Create . Any other Karaf containers you start will then be JOINED to the existing Fabric.
Once the Fabric has been created, localhost:8181/hawtio will have Fabric specific content
If you are using Fabric, then you can use the fabric8 Maven plugin to deploy your application to a Profile directly. See more details here: https://fabric8.io/gitbook/mavenPlugin.html . Basically you can just run mvn fabric8:deploy and it will update the fabric to use your new code. Be careful here as this will tell Fabric where to find your new code in its list of Maven repos. If you have not deployed your code to a central or shared repo and it is only on your local machine, and the container that is getting the deployment is on a separate machine, it will not work.
Be sure to read up on how profiles work as well, because adding your code to a profile does not add it to a container unless that container is already set up to include the profile you are updating. The fabric guide I linked first explains this well.
Can Bluemix environment with Liberty be replicated on developer laptops for offline development? Will I be able to run Bluemix local with Openstack on a quad core i5?
You can run Cloud Foundry in a VM on your laptop using bosh-lite. You could also install the open source Liberty buildpack into this local CF with the buildpack dependencies cached giving you an environment that could work offline.
The Bluemix services will not be available to you though, if you are offline, so the answer really depends on what services you need. You could reasonably set up some kind of local database but many of the services would just be unavailable.
I am not sure what exact your requirement is. IBM Liberty profile can be setup with Eclipse and you can create a server in local to test your java/JEE code. This is very simple, you need to install liberty plugin in Eclipse and create a server. See documentations in IBM web site.
See this url if it helps.. you can integrate BlueMix server to your Ecplise IDE
https://console.ng.bluemix.net/docs/manageapps/eclipsetools/eclipsetools.html
I want to run my WSO2 CEP on IBM Bluemix. Is it possible to host it as a Liberty application or any other option is available there ?
WSO2 CEP is a Java Web application including Tomcat as application server, so you may have to build it from source and push the war on Bluemix to try it working on liberty application server. Anyway between WSO2 CEP prerequisites there is Java Oracle jdk, and Bluemix is running on IBM jdk, so you could have some other problems.
So maybe it could be better to run it on a (group of) Bluemix Container: these are based on Docker containers, so you could create a custom docker image from the (really) several images available, and then you can push it to a Bluemix container on cloud.
Bluemix/Docker containers are fully portable so you can very easily create your one and take it everywhere and also make it scaling very simply on Bluemix cloud environment.
You can start from here
https://www.ng.bluemix.net/docs/containers/container_index.html
https://docs.docker.com/docker/userguide/
I packaged my Scala/LiftWeb app with the sbt one-jar plugin into a single executable jar file and packed it up with Docker, exposing the embedded Jetty's port in the Dockerfile.
It runs fine locally on Docker and appearently deploys clean on AWS EB using the CLI deployment tools. On the received EB URL however, all I see is the congrats page saying "Your Docker Container is now running in Elastic Beanstalk on your own dedicated environment in the AWS Cloud.".
So, where is my app? Do I miss any steps making my app publicly available on my EB instance?
For future reference, the problem was caused by using an obsolete 2.x version of the aws-eb-cli tools package. Upgrading it to 3.x made the error obvious - building the docker image has failed on AWS.
What I was looking for was running an existing docker image, I found instruction for this scenario at https://aws.amazon.com/blogs/aws/aws-elastic-beanstalk-for-docker/.
Thanks a lot for Nick for asking the right questions which made me realize the obsolete tools package!
I love Heroku but I would prefer to develop in Scala rather than Ruby on Rails.
Does anyone know of any services like Heroku that work with Scala?
UPDATE: Heroku now officially supports Scala - see answers below for links
As of October 3rd 2011, Heroku officially supports Scala, Akka and sbt.
http://blog.heroku.com/archives/2011/10/3/scala/
Update
Heroku has just announced support for Java.
Update 2
Heroku has just announced support for Scala
Also
Check out Amazon Elastic Beanstalk.
To deploy Java applications using
Elastic Beanstalk, you simply:
Create your application as you
normally would using any editor or IDE
(e.g. Eclipse).
Package your
deployable code into a standard Java
Web Application Archive (WAR file).
Upload your WAR file to Elastic
Beanstalk using the AWS Management
Console, the AWS Toolkit for Eclipse,
the web service APIs, or the Command
Line Tools.
Deploy your application.
Behind the scenes, Elastic Beanstalk
handles the provisioning of a load
balancer and the deployment of your
WAR file to one or more EC2 instances
running the Apache Tomcat application
server.
Within a few minutes you will
be able to access your application at
a customized URL (e.g.
http://myapp.elasticbeanstalk.com/).
Once an application is running,
Elastic Beanstalk provides several
management features such as:
Easily deploy new application versions
to running environments (or rollback
to a previous version).
Access
built-in CloudWatch monitoring metrics
such as average CPU utilization,
request count, and average latency.
Receive e-mail notifications through
Amazon Simple Notification Service
when application health changes or
application servers are added or
removed.
Access Tomcat server log
files without needing to login to the
application servers.
Quickly restart
the application servers on all EC2
instances with a single command.
Another strong contender is Cloud Foundry. One of the nice features of Cloud Foundry is the ability to have a local version of "the cloud" running on your laptop so you can deploy and test offline.
I started working on the exact same thing as what you said a few weeks ago. I use Lift, which is a great framework and has a lot of potential, on top of Linux chroot environment.
I'm done with a demo version, but Linux chroot is not that stable (nor secure), so I'm now switching to FreeBSD jail on Amazon EC2, and hopefully it'll be done soon.
http://lifthub.net/
There are also other Java hosting environment including VMForce mentioned above.
If you are looking for a custom setup which also has the ease of deployment that heroku offers: http://dotcloud.com. They are invite only right now but I was given access in under three days. I am working on a Lift/MongoDB project there and it works well.
Off the top of my head, only VMForce comes to mind, but its not available yet. This will be a Java-oriented service, so that probably means you'll have to spend a wee bit of time figuring out how to package the app.
For more discussion, there was a debate about this in 2008.
I'm not entirely sure if it's really suitable or not, but people have deployed Scala applications to Google App Engine, for example http://mawson.wordpress.com/2009/04/10/first-steps-with-scala-on-google-app-engine/
Actually you can run scala on heroku right now. You don't believe it?
https://github.com/lstoll/heroku-playframework-scala
I'm not sure the tricks lstoll has used are legit but using the
new cedar platform where you can run custom processes and some
ingenious Gemfile hacking he has managed to bootstrap the Java
play platform into a process. Seems to work as he has a live
site running a test page.
Stax cloud service offers preconfigured lift project skeleton. Also, there is a tutorial on how to deploy lift project to appengine.