This is the Original Ubuntu 15.10 root docker images. It is small and basic.
It includes fresh installation of Ubuntu 15.10 distribution, english language, universe apt packages and some basic common packages: vim-tiny editor, bash-completion to save time, curl to use webservices and supervisor to run easily more process in Docker VM.
So, this image respects pragmatic simple vision of Docker.
If you are looking for a complete VM, just use LXC.
LXC is an amazing product to get fast full VM where Docker is amazing to get only one service by VM.
This ref how Sylvain Lasnier built his ubuntu image for my own custom setting
You can run shell like this:
$ docker run --rm -t -i kiralpoon/ubuntu_15 /bin/bash
root@1817a311eb14:/# cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=15.10
DISTRIB_CODENAME=wily
DISTRIB_DESCRIPTION="Ubuntu 15.10"
root@1817a311eb14:/# exit
exit
You can install apt in docker's ubunutu to calculate the first thousand pi decimals:
$ docker run --rm -ti kiralpoon/ubuntu_15
root@eb1051451f95:/# apt-get install -y -q bc
Reading package lists...
Building dependency tree...
Reading state information...
The following NEW packages will be installed:
bc
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 82.6 kB of archives.
After this operation, 246 kB of additional disk space will be used.
Get:1 http://archive.ubuntu.com/ubuntu/ wily/main bc amd64 1.06.95-9build1 [82.6 kB]
Fetched 82.6 kB in 0s (168 kB/s)
debconf: delaying package configuration, since apt-utils is not installed
Selecting previously unselected package bc.
(Reading database ... 12428 files and directories currently installed.)
Preparing to unpack .../bc_1.06.95-9build1_amd64.deb ...
Unpacking bc (1.06.95-9build1) ...
Setting up bc (1.06.95-9build1) ...
# it will use the arc tangent function a() and bc utils to calculate the pi.
# scale gives you the number of decimal place
root@eb1051451f95:/# time echo "scale=1000; 4*a(1)" | bc -l
3.141592653589793238462643383279502884197169399375105820974944592307\
81640628620899862803482534211706798214808651328230664709384460955058\
22317253594081284811174502841027019385211055596446229489549303819644\
28810975665933446128475648233786783165271201909145648566923460348610\
45432664821339360726024914127372458700660631558817488152092096282925\
40917153643678925903600113305305488204665213841469519415116094330572\
70365759591953092186117381932611793105118548074462379962749567351885\
75272489122793818301194912983367336244065664308602139494639522473719\
07021798609437027705392171762931767523846748184676694051320005681271\
45263560827785771342757789609173637178721468440901224953430146549585\
37105079227968925892354201995611212902196086403441815981362977477130\
99605187072113499999983729780499510597317328160963185950244594553469\
08302642522308253344685035261931188171010003137838752886587533208381\
42061717766914730359825349042875546873115956286388235378759375195778\
18577805321712268066130019278766111959092164201988
real 0m0.436s
user 0m0.428s
sys 0m0.004s
You can extend this image for testing service. For example, test nginx web server:
$ docker run --rm -ti -p 80 kiralpoon/ubuntu_15 /bin/bash
...
root@6742501682fe:/# service nginx start
* Starting nginx nginx
Test it from another terminal:
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
6742501682fe kiralpoon/ubuntu_15 "/bin/bash" 2 minutes ago Up 2 minutes 0.0.0.0:32768->80/tcp dreamy_wright
$ curl -I 0.0.0.0:32768
HTTP/1.1 200 OK
Server: nginx/1.9.3 (Ubuntu)
Date: Mon, 27 Jun 2016 17:07:11 GMT
Content-Type: text/html
Content-Length: 612
Last-Modified: Mon, 27 Jun 2016 17:05:14 GMT
Connection: keep-alive
ETag: "57715cca-264"
Accept-Ranges: bytes
#In addition, you can also test this with your broswer by typing the url and "Welcome to nginx" should be shown to your page
To stop the service: root@6742501682fe:/# service nginx stop * Stopping nginx nginx [ OK ] root@6742501682fe:/# exit exit
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