Monday, October 27, 2014

On the Security of Containers

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Since last year, as Linux containers have come to the forefront of the technology hype cycle, there has been much rumbling about the security of containers. Most of these discussions, articles, and blog posts that have been published inevitably compare containers to VMs as if this were a comparison that mattered. It is not.

Now, saying it doesn’t matter could be a bit strong. The story is closer to, “containers always”, “VMs sometimes”. There are certainly users that, upon seeing Docker decide that they wish to reevaluate their need for VMs. Principally, those users far prefer performance to security for their single-tenant workloads may wish for VM-like lifecycle management without the overhead imposed by virtualization.

However, for those that depend on VMs for security, Docker is not an alternative, but a complement.

Read more here

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