Docker: Difference between revisions

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Linux containers (LXC)<ref>https://help.ubuntu.com/lts/serverguide/lxc.html</ref> technology has taken off with Docker https://www.docker.com/ <ref>[http://opensource.com/business/14/7/interview-j%C3%A9r%C3%B4me-petazzoni-docker See the interview on opensource.com]</ref> <ref>more info from Wikipedia [[wp:Docker_(software)]]</ref> which was released as open source in March 2013. RedHat and others have collaborated with the corporate backer to the technology seemingly to compete with Canonical's JuJu https://juju.ubuntu.com/ and Charm technology which also is based on Linux containers. Linux containers are built into the linux kernel, and so offer a lightweight native method of virtualization compared to more traditional (heavyweight) virtualization techniques like VMWare, Vagrant, VirtualBox.

[[File:Docker-architecture.svg|thumb|right|Docker Architecture|link=https://docs.docker.com/get-started/overview/#docker-architecture]]

Linux containers (LXC)<ref>https://help.ubuntu.com/lts/serverguide/lxc.html</ref> technology has taken off with Docker https://www.docker.com/ <ref>[http://opensource.com/business/14/7/interview-j%C3%A9r%C3%B4me-petazzoni-docker See the interview on opensource.com]</ref> <ref>more info from Wikipedia [[wp:Docker_(software)]]</ref> which was released as open source in March 2013. RedHat and others have collaborated with the corporate backer to the technology seemingly to compete with Canonical's JuJu https://juju.ubuntu.com/ and Charm technology which also is based on Linux containers. Linux containers are built into the linux kernel, and so offer a lightweight native method of virtualization compared to more traditional (heavyweight) virtualization techniques like [[VMWare]], [[Vagrant]], [[VirtualBox]].

Essentially, the difference is the hypervisor and OS. Whereas containers are implemented with kernel features like namespaces, cgroups and chroots, a full VM requires a hypervisor plus an operating system in the VM.

Essentially, the difference is the hypervisor and OS. Whereas containers are implemented with kernel features like namespaces, cgroups and chroots, a full VM requires a hypervisor plus an operating system in the VM. Docker runs a [https://docs.docker.com/get-started/overview/#docker-architecture docker daemon] on the Docker Host.

~~https://www.docker.com/~~

~~== Bring your own Node ==~~

* https://docs.docker.com/develop/

~~Docker Cloud lets you use your own host as a node to run containers. In order to do this, you have to first install the Docker Cloud Agent.~~

* https://docs.docker.com/engine/install/

~~<source lang="bash">~~

~~curl -Ls~~ https://~~get.cloud~~.docker.com/ ~~| sudo -H sh -s 7521e_PRIVATEKEY_7521e~~

~~</source>~~

~~And you must have incoming port 2375 open plus have 6783tcp~~/~~udp open~~

~~The following Linux distributions are supported:~~

* Ubuntu 14.04, 15.04

* Debian 8

* Centos 7

* RedHat Linux 7

* ~~Fedora 21, 22~~

~~== Pricing ==~~

Pricing depends on whether it's cloud or premise (datacenter), and ranges from $15/mo for a single node in the cloud to $150 or $300/mo per node for datacenter engine depending on the level of support.<ref>https://www.docker.com/pricing#/pricing_cloud</ref>

~~== Installing on Ubuntu ==~~

https://docs.docker.com/engine/~~installation/linux/docker-ce~~/~~ubuntu/ Add the Docker repo, and install~~

~~Note: it's only supported on 64-bit Ubuntu~~

@@ Line 1: / Line 1: @@
-Linux containers (LXC)<ref>https://help.ubuntu.com/lts/serverguide/lxc.html</ref> technology has taken off with Docker https://www.docker.com/ <ref>[http://opensource.com/business/14/7/interview-j%C3%A9r%C3%B4me-petazzoni-docker See the interview on opensource.com]</ref> <ref>more info from Wikipedia [[wp:Docker_(software)]]</ref> which was released as open source in March 2013.  RedHat and others have collaborated with the corporate backer to the technology seemingly to compete with Canonical's JuJu https://juju.ubuntu.com/ and Charm technology which also is based on Linux containers.  Linux containers are built into the linux kernel, and so offer a lightweight native method of virtualization compared to more traditional (heavyweight) virtualization techniques like VMWare, Vagrant, VirtualBox.
+[[File:Docker-architecture.svg|thumb|right|Docker Architecture|link=https://docs.docker.com/get-started/overview/#docker-architecture]]
+Linux containers (LXC)<ref>https://help.ubuntu.com/lts/serverguide/lxc.html</ref> technology has taken off with Docker https://www.docker.com/ <ref>[http://opensource.com/business/14/7/interview-j%C3%A9r%C3%B4me-petazzoni-docker See the interview on opensource.com]</ref> <ref>more info from Wikipedia [[wp:Docker_(software)]]</ref> which was released as open source in March 2013.  RedHat and others have collaborated with the corporate backer to the technology seemingly to compete with Canonical's JuJu https://juju.ubuntu.com/ and Charm technology which also is based on Linux containers.  Linux containers are built into the linux kernel, and so offer a lightweight native method of virtualization compared to more traditional (heavyweight) virtualization techniques like [[VMWare]], [[Vagrant]], [[VirtualBox]].
-Essentially, the difference is the hypervisor and OS.  Whereas containers are implemented with kernel features like namespaces, cgroups and chroots, a full VM requires a hypervisor plus an operating system in the VM.
+Essentially, the difference is the hypervisor and OS.  Whereas containers are implemented with kernel features like namespaces, cgroups and chroots, a full VM requires a hypervisor plus an operating system in the VM.  Docker runs a [https://docs.docker.com/get-started/overview/#docker-architecture docker daemon] on the Docker Host.
-https://www.docker.com/
 {{Video|url=https://www.youtube.com/watch?v=YFl2mCHdv24}}
 {{Video|url=https://www.youtube.com/watch?v=Qw9zlE3t8Ko}}
-== Bring your own Node ==
+* https://docs.docker.com/develop/
-Docker Cloud lets you use your own host as a node to run containers. In order to do this, you have to first install the Docker Cloud Agent.
+* https://docs.docker.com/engine/install/
-<source lang="bash">
-curl -Ls https://get.cloud.docker.com/ | sudo -H sh -s 7521e_PRIVATEKEY_7521e
-</source>
-And you must have incoming port 2375 open plus have 6783tcp/udp open
-The following Linux distributions are supported:
-* Ubuntu 14.04, 15.04
-* Debian 8
-* Centos 7
-* RedHat Linux 7
-* Fedora 21, 22
-== Pricing ==
-Pricing depends on whether it's cloud or premise (datacenter), and ranges from $15/mo for a single node in the cloud to $150 or $300/mo per node for datacenter engine depending on the level of support.<ref>https://www.docker.com/pricing#/pricing_cloud</ref>
-== Installing on Ubuntu ==
-https://docs.docker.com/engine/installation/linux/docker-ce/ubuntu/  Add the Docker repo, and install
-Note: it's only supported on 64-bit Ubuntu
 {{References}}