I want to do something like this in a chef recipe:
maven_artifact "/opt/foo/my.jar" do
source "com.foo:my:0.1:jar"
end
But I can't find a cookbook which provides this. I've written something which basically does this but it doesn't handle snapshots, which requires parsing maven-metadata.xml. Before I plunge into this, I wanted to be sure I wasn't missing something obvious since this seems like a basic usecase.
If I chmod 700 the the home directory of a user (on Linux), does this guarantee that other non-privileged users cannot access any subdirectory or file under that home directory? Or are there sneaky exceptions to this?
Just to be concrete, if I have a directory /home/foo that is 700, and it has a subdirectory "bar" that is 777, can any other user on the system read bar? Or is it guaranteed not to be readable?
I need to subdivide EC2 (or perhaps other cloud provider) instances. I know you cannot run a full virtualization stack on another. For instance a Xen guest cannot host a VirtualBox guest. So this means I am left with operating system-level virtualization.
EC2 kernels are only publishable by select vendors, so you cannot upload the custom kernels required for OpenVZ or Vserver.
For Linux, I think this leaves me with lxc (on Ubuntu 9.10), User Mode Linux, or qemu. I'm having a hard time finding comparisons between them. Performance is a concern, as is the ability to provide SMP to the guests. I would also like to use COW/sparse roots to reduce guest provisioning.
My question is, what are the trade-offs between these options?