I am working on taint tracking model on java framework, and I have enhanced existing core java classes such as String, StringBuilder etc. and have build a virtual machine based on these new (self edited) java framework.
Does the CloudFoundry runs on the local virtual machine, or creates its own one?
I am using it with VMware player.
If it creates its own VM, is there any way to get SSH connection and set up new VM (my self edited one)?
This project is purely for academic purposes so Sun's T&C are not braked.
Kind regards,
Assel
If you are using Micro Cloud Foundry, then everything runs inside the virtual machine, including the Java VM used for executing your code. You use vmc push to deploy your code into the Micro Cloud Foundry instance, and it executes inside there.
Remember that you do not have access to modify the system JVM on the "real" (non-Micro) cloudfoundry.com or other Cloud Foundry instances like AppFog, you use the version that is already deployed.
Instead of SSHing (for microcloud) you can use (in vmware player/workstation/fusion) alt+f2 and login. Then use whatever you want. Though VMWare discouraged this, because of updates.
Related
I have just installed VMware ESXi 7 as a virtual machine just for learning. I have seen it is feasible to create nested vms using VMware Player Workstation plus Intel chipset: my testing purpose is to create a virtual machine inside a virtualized ESXi server.
Actually I cannot install any vm, probably due to the fact I have not created any datastore yet.
In order to create a datastore I thought to edit the partition of the free space avalaible (for a linux vm 20GB are enough), but when I try to edit partition I get such summary in which I cannot configure anything at all (see pics).
Have you any suggestion?
When you install SO it's not a good practice to add it as a datastore. Please turn off you VM and add another disk to ESXI. After you boot up server again you will be able to create a new datastore.
I am using the compute engine of the google cloud platform to do computations.
I am using Ubuntu as the OS and every time I create a new instance, I have to install the software I need from scratch, including the build-essential.
I am pretty sure there is a way to specify the software I would like to have in my VM but couldn´t figure out a straightforward way to do it.
You should use GCE custom images to create VM images with pre-installed software that you need.
Alternatively, you can consider using startup scripts in which you can install software during VM startup. But in contrast to custom images it will increase VM startup time, because startup script will be running during VM startup.
I am currently evaluating the possibility of introducing a private Java PAAS cloud. So far I am quite excited about the whole solution, especially combining the foundry with openstack.
What I am wondering though, is how this can be combined with development. I obviously want the developer to run the developed code on the cloud and no longer on his unmanaged workstation.
Is it possible to do the following:
Developer develops his application code on the local host OS. A virtual machine is used to build and run the application. I have seen this in vagrant and liked this alot. Ideally the local vagrant box is a cloud foundry space.
If the developer is OK with his code, he should push his application out of the local vm to a developer specific acceptance space run by cloud foundry on the network. Here the application is a more production like environment and automated acceptance / disaster recovery tests can be executed.
If the developer decides this is OK and merges his changes to the trunk (SVN/GIT) a CI tool should deploy the application to the "global" test, acceptance and production spaces.
I assume the last point is no problem. I just cannot find a way, how the first steps can be achieved.
Any ideas?
are you actually looking for a complete cf deployment on top of openstack?
That can be achieved using BOSH cloud foundry deployment for openstack.
http://docs.cloudfoundry.com/docs/running/deploying-cf/openstack/
you can have different spaces in the cf deployment: test , production etc. and can move application from one space to another after testing is done.
Let's say that I setup my own cloud using the open source cloud foundry implementation provided on cloudfoundry.org. Will each app that I deploy be run as a separate user? Or is there any of VMWare's virtualization technology in use here? E.g. would each app run in a separate virtual machine or anything like that? How can I configure the memory, cpu, and disk resource limits for each app?
I asked this on the mailing list. Here's the response I got:
If your DEA is configured to run in secure mode, then each app runs as its own user and process isolation is used to protect them. We are moving toward a model of using linux cgroups http://en.wikipedia.org/wiki/Cgroups when on linux, using the warden cgroup wrappers that are already in our source tree.
VM based isolation for a single app is pretty heavy weight, but we have long term plans to provide this for apps that need/desire it. (As opposed to the warden/cgroup work which is a near term project)
Since this is related to the open source for cloud foundry, you can try asking your question on https://groups.google.com/a/cloudfoundry.org/group/vcap-dev
You should get a quick response there!
We have the need to perform tests on localized platforms that put some burden on our hardware resources because for just a few weeks we might need plenty of servers and clients (Windows 2003 and Windows 2008, Vista, XP, Red Hat, etc) in multiple languages.
We typically have relied on blades with Windows 2003 and VMWare, but sometimes these are overgrown by punctual needs and also have the issue that the acquisition and deployment process is quite slow if the environment needs to grow.
Is Amazon EC2/S3 usable in the following scenario?
Install VMWare (Desktop because we need the ability to have snapshots) on an Amazon AMI.
Load existing VMWare images from S3 and run them on EC2 instances (perhaps 3 or 4 server or client OSes on each EC2 instance.
We are more interested in the ability to very easily start or stop VMware snaphsots for relatively short tests. This is just for testing configurations, not a production environment to actually serve a user workload. The only real user is the tester. These configurations might be required for just a few weeks and then turned off for a few months until the next release requires them again.
Is EC2/S3 a viable alternative for this type of testing purpose?
Do you actually need VMWare, or are you testing software that runs in the VMWare VMs? You might actually need VMWare if you are testing e.g. VMWare deployment policy, or are running code that tests the VMWare APIs. Examples of the latter might be you are testing an application server stack and currently using VMWare to test on many platforms.
If you actually need VMWare, I do not believe that you can install VMWare in EC2. Someone will correct & enlighten me if this is not the case.
If you don't actually need VMWare, you have more options. If you can use one of the zillion public AMIs as a baseline, clone the appropriate AMIs and customize them to suit your needs (save the customized version as a private AMI for your team). Then, you can use as many of them as you like. Perhaps you already have a bunch of VMWare images that you need to use in your testing. In that case, you can migrate your VMWare image to an EC2 AMI as described in various places in Google, for example:
http://thewebfellas.com/blog/2008/9/1/creating-an-new-ec2-ami-from-within-vmware-or-from-vmdk-files
(Apologies to the SO censors for not pasting the entire article here. It's pretty long.) But that's a shortcut; you can always use the documented AMI creation process to convert any machine (VMWare or not) to an AMI. Perform that process for each VMWare VM you have, and you'll be all set. Just keep in mind that when you create an AMI, you have to upload it to S3, and that will take a lot of time for large VMs.
This is a bit of a shameless plug, but we have a new startup that may deal with exactly your problem. Amazon EC2 is excellent for on-demand computing, but is really targeted at just a single user launching production servers. We've extended EC2 to make it a Virtual Lab Management environment, with self-service, policies and VM sharing. You can check it out at http://LabSlice.com and see if it meets your needs.
Amazon provides a solution themselves now: http://aws.typepad.com/aws/2010/12/amazon-vm-import-bring-your-vmware-images-to-the-cloud.html