History

Ed Cranford 296508575a Retry git clone in scripts Sometimes git cloning fails while trying to unittest or build an image. This patch adds a function that retries the clone on failure five times, waiting five seconds between attempts. Change-Id: I179ee242eafcad508f99c09f0aaab9f4b4ee054b		2015-03-25 10:16:21 -05:00
..
README.md	dockerfile language pack	2014-06-27 10:45:54 -05:00
build-app	Retry git clone in scripts	2015-03-25 10:16:21 -05:00
prepare	sudo is not needed to make these dirs as	2014-10-15 15:08:01 -05:00

README.md

docker builder!

build dockerfile repos with docker

Requirements

Devstack + Docker Driver

If you want to run this in Vagrant you can use the following canned devstack:

git clone https://github.com/rackerlabs/vagrant-solum-dev.git
cd vagrant-solum-dev
DOCKER=true SOLUM=/path/to/code vagrant up devstack

Using Docker Builder

Prepare Environment

This should prepare your system to use the docker builder. Currently requires sudo access to work with docker. Run it as the same user you installed devstack which has passwordless sudo.

/opt/stack/solum/contrib/lp-dockerfile/docker/prepare

Build an Application

The build script takes two positional arguments. The location of the git repo, and the app name. Currently requires sudo access to work with docker. Run it as the same user you installed devstack which has passwordless sudo.

$ source ~/devstack/openrc
$ keystone tenant-get $OS_TENANT_NAME
# get the tenant_id and pass that into build-app

/opt/stack/solum/contrib/lp-dockerfile/docker/build-app https://github.com/paulczar/example-nodejs-express.git nodejs $OS_TENANT_NAME

This script will upload a docker container with your built application to glance to be run via nova.

Deploy an Application

Due to a bug with the docker driver the first VM you start will run sh instead of the embedded CMD. thus we should kick off a dummy build first

$ nova image-list
+--------------------------------------+---------------------------------+--------+--------+
| ID                                   | Name                            | Status | Server |
+--------------------------------------+---------------------------------+--------+--------+
| 0df6ccbc-c43c-4e4d-9caa-3ddf5485b51b | docker-busybox:latest           | ACTIVE |        |
| 8d558f99-02a9-4b9e-98ac-9bb65009ecda | nodejs:latest                   | ACTIVE |        |
+--------------------------------------+---------------------------------+--------+--------+
$ nova boot --flavor 1 --image docker-busybox:latest dummy
$ nova delete dummy
$ nova boot --flavor 1 --image nodejs:latest nodejs01
$ nova boot --flavor 1 --image nodejs:latest nodejs02
$ nova list
+--------------------------------------+----------+--------+------------+-------------+-----------------------+
| ID                                   | Name     | Status | Task State | Power State | Networks              |
+--------------------------------------+----------+--------+------------+-------------+-----------------------+
| b4ac0b33-42da-4efa-8580-28b1627199b8 | nodejs01 | ACTIVE | -          | Running     | private=192.168.78.21 |
| 1697f9fa-9c2c-44b3-b13b-87f7bd3a96c6 | nodejs02 | ACTIVE | -          | Running     | private=192.168.78.22 |
+--------------------------------------+----------+--------+------------+-------------+-----------------------+
$ curl http://192.168.78.21:5000
Hello World
$ curl http://192.168.78.22:5000
Hello World