Wednesday, April 20, 2016

Docker and ip tables



Docker and fire-walling
  • Docker daemon makes an entry into host iptables everytime when a container wants to expose a port on host
  • https://fralef.me/docker-and-iptables.html
  • There are open source projects which can wrap this and prevent by making a generic entry for ALLOW of this port.
  • Weave network for docker 
    • Excellent docker 

Look at docker-fw or dfwfw : these are nothing but the docker daemon / engine interceptor and it provision some iptables entries in between , the best part is these services run as a docker image in privileged mode and does the magic , also include DNS servers.

Tuesday, April 19, 2016

Containers : are not VMs , container are of course secured

A recent video debate on container technology and where we are at ( i see this video got recorded on October 2015 )


A clear spell-out of difference between virtual machines and containers , worth a watch
Hear to the myths on containers

  • containers are NOT VMs
  • containers are NOT secured 





More follow up

  • ACI ( App Container Image , something like Amazon AMI ) - coreos comes up with rkt. 
  • OCI ( Open Container Initiative )

Open Container Initiative: Home


Thursday, April 7, 2016

borg, omega and now the open source version of it kubernetes

Excellent articles i came across recently

How container technologies kicked in by google ( borg, omega and now the open source version of it kubernetes )

  • https://www.opencontainers.org/
  • https://github.com/opencontainers/runtime-spec/blob/master/ROADMAP.md
  • http://queue.acm.org/detail.cfm?id=2898444


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