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Remove trailing spaces in file docs/source/advanced/docker/lifecycle_management.rst

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GONG Jie 2017-12-31 23:59:59 +00:00
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docs/source/advanced/docker/lifecycle_management.rst
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@ -3,9 +3,9 @@ Docker life-cycle management in xCAT
The Docker linux container technology is currently very popular. xCAT can help managing Docker containers. xCAT, as a system management tool has the natural advantage for supporting multiple operating systems, multiple architectures and large scale clusters.
This document describes how to use xCAT for docker management, from Docker Host setup to docker container operations.
This document describes how to use xCAT for docker management, from Docker Host setup to docker container operations.
.. note:: This document was verified with:
.. note:: This document was verified with:
* Docker Version 1.10, 1.11
* Docker API version 1.22
@ -19,7 +19,7 @@ This document describes how to use xCAT for docker management, from Docker Host
Setting up Docker Host
----------------------
The **Docker Host** is the bare metal server or virtual machine where Docker containers can run. It will be called *dockerhost* in the following sections.
The **Docker Host** is the bare metal server or virtual machine where Docker containers can run. It will be called *dockerhost* in the following sections.
The *dockerhost* at a minimum must provide the following:
@ -28,12 +28,12 @@ The *dockerhost* at a minimum must provide the following:
Preparing osimage for docker host
`````````````````````````````````
The osimage represents the image of the Operating System which will be deployed on the dockerhost.
The osimage represents the image of the Operating System which will be deployed on the dockerhost.
Copy files out from DVDs/ISOs and generate
Copy files out from DVDs/ISOs and generate
""""""""""""""""""""""""""""""""""""""""""
**[ubuntu x86_64]** ::
**[ubuntu x86_64]** ::
copycds ubuntu-xxx-server-amd64.iso
**[ubuntu16.04 ppc64el]** ::
@ -52,31 +52,31 @@ The pkglist file should contain the following: ::
nfs-common
snmpd
bridge-utils
The otherpkglist file should contain the following:
**[ubuntu x86_64]** ::
The otherpkglist file should contain the following:
**[ubuntu x86_64]** ::
# cat /install/custom/ubuntu/ubuntu_docker.pkglist
docker-engine
**[ubuntu16.04 ppc64el]**
**[ubuntu16.04 ppc64el]**
At the time of this writing (February 2016), docker package is not available for **ppc64el** architecture from docker.org. You can follow instructions below on how to manually download and install it.
* Download docker engine for ppc64el:
* Download docker engine for ppc64el:
::
wget http://launchpadlibrarian.net/251622081/docker.io_1.10.3-0ubuntu4_ppc64el.deb -O /install/docker_ppc64el/docker.io_1.10.3-0ubuntu4_ppc64el.deb
* Configure **otherpkgdir** like this:
* Configure **otherpkgdir** like this:
::
otherpkgdir=/install/docker_ppc64el
* The **otherpkglist** file should be:
* The **otherpkglist** file should be:
::
@ -87,7 +87,7 @@ Create the osimage for dockerhost
"""""""""""""""""""""""""""""""""
The osimage for dockerhost will be like this:
**[ubuntu x86_64]** ::
**[ubuntu x86_64]** ::
# lsdef -t osimage ub14.04.03-x86_64-dockerhost
Object name: ub14.04.03-x86_64-dockerhost
@ -125,9 +125,9 @@ Currently, a customer defined network object is needed when create a docker cont
chdef host01 -p postbootscripts="setupdockerhost <netobj_name>=<subnet>/<netmask>@<gateway>[:nicname]"
* netobj_name: the network object to be created, it will be used in *dockernics* when creating docker container
* netobj_name: the network object to be created, it will be used in *dockernics* when creating docker container
* subnet/netmask@gateway: the network which the IP address of docker container running on the docker host must be located in. If *nicname* is specified, the *subnet/netmask* must be the subnet of the nic *nicname* located in. And *gateway* shall be the IP address of the nic *nicname*.
* nicname: the physical nic name which will be attached to the network object
* nicname: the physical nic name which will be attached to the network object
For example, a network object *mynet0* with subnet *10.0.0.0/16* and gateway *10.0.101.1* on nic *eth0* can be created with the command: ::
@ -170,7 +170,7 @@ Create docker instance
* dockerflag - A JSON string which will be used as parameters to create a docker. Reference `docker API v1.22 <https://docs.docker.com/engine/reference/api/docker_remote_api_v1.22/>`_ for more information about which parameters can be specified for "dockerflag".
To create the docker instance *host01c01* with image *ubuntu* and command */bin/bash*, use: ::
mkdocker host01c01 image=ubuntu command=/bin/bash dockerflag="{\"AttachStdin\":true,\"AttachStdout\":true,\"AttachStderr\":true,\"OpenStdin\":true}"
Remove docker instance
@ -242,13 +242,13 @@ If things go wrong:
ip addr show dev <nicname>
* Run **ps -ef | grep docker** to verify docker engine is running with configured options. It should look something like
* Run **ps -ef | grep docker** to verify docker engine is running with configured options. It should look something like
::
root 3703 1 0 Apr15 ? 00:12:28 /usr/bin/docker daemon -H unix:///var/run/docker.sock -H tcp://host01:2375 --tls --tlscacert=/root/.docker/ca-cert.pem --tlscert=/root/.docker/dockerhost-cert.pem --tlskey=/root/.docker/dockerhost-cert.pem --tlsverify=true --raw-logs
If the output is missing some options, verify that file **/lib/systemd/system/docker.service** contains the following lines
If the output is missing some options, verify that file **/lib/systemd/system/docker.service** contains the following lines
::