hello-world-docker-bottle

A simple Python "hello world" server in Docker using bottle.

Running from the index.docker.io image

This image exists in the index.docker.io registry already, so you can run it with:

$ docker pull joshuaconner/hello-world-docker-bottle
$ docker run -d -p 8080 joshuaconner/hello-world-docker-bottle

This will map port 8080, which the server is listening on, to a dynamically allocated port on the host. You can see which port by running docker ps:

$ docker ps
CONTAINER ID        IMAGE                                    COMMAND                CREATED             STATUS              PORTS                     NAMES
e9b36d702141        joshuaconner/hello_world_bottle:latest   /usr/bin/python /hom   3 seconds ago       Up 2 seconds        0.0.0.0:49173->8080/tcp   kickass_archimedes

This shows that port 8080 on the container is mapped to port 49173 on the host. Thus, assuming curl is installed (if not, run sudo apt-get install curl first), you can do:

$ curl localhost:49173
Hello World!

Building from source

You can also build from source using:

$ docker build -t you/your_tag_name /PATH/TO/THIS/REPOSITORY
$ docker run -d -p 8080 you/your_tag_name

Linking to another container

If you'd like to link to another container, the image exposes port 8080 as well.

$ docker run -name hello -d joshuaconner/hello-world-docker-bottle
$ docker run -i -t -link hello:my_hello ubuntu bash

Then, running env in the second container will show the information exposed about our linked container

root@177dc3b29bf7:/# env
HOSTNAME=177dc3b29bf7
TERM=xterm
MY_HELLO_PORT_8080_TCP_ADDR=172.17.0.81
MY_HELLO_PORT_8080_TCP_PROTO=tcp
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
MY_HELLO_PORT_8080_TCP=tcp://172.17.0.81:8080
PWD=/
MY_HELLO_PORT=tcp://172.17.0.81:8080
SHLVL=1
HOME=/
MY_HELLO_NAME=/tender_galileo/my_hello
MY_HELLO_PORT_8080_TCP_PORT=8080
container=lxc
_=/usr/bin/env

If we were to install curl in this container with apt-get install curl we could then do:

root@177dc3b29bf7:/# curl 172.17.0.81:8080
Hello World!