osx-docker-openshift What is this?
These are notes regarding our installation of OpenShift running in docker on Mac OSX.
In particular, we want to achieve the following:
- installation of docker on our Mac OSX host, using
docker-machine - installation of OpenShift via its docker image, running in our
docker-machinevm - the ability to interface with the OpenShift web console on our Mac OSX host
Our main objective is to be able to get OpenShift running under docker, such that we can run it up anywhere (Mac OSX, EC2, Digital Ocean etc).
Installation
Install homebrew
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
Install dockertoolbox
brew install Caskroom/cask/dockertoolbox
Run docker-machine to create the VM
# create the docker machine
docker-machine create --driver virtualbox --engine-insecure-registry 0.0.0.0/0 vm-docker
Start the vm
# start the docker machine
docker-machine start vm-docker
# this command allows the docker commands to be used in the terminal
eval "$(docker-machine env vm-docker)"
If we don't create the VM with --engine-insecure-registry, we can always add it to the local config
afterwards:
vim ~/.docker/machine/machines/vm-docker/config.json
# Add this:
"InsecureRegistry": ["0.0.0.0/0"],
We can also do this directly in our docker-machine vm:
# ssh into our vm running docker
docker-machine ssh vm-docker
sudo vi /var/lib/boot2docker/profile
# Add the following two lines to the `procfile`
# (`DOCKER_TLS=no` suppresses output on the Mac OSX host terminal)
DOCKER_TLS=no
EXTRA_ARGS="--insecure-registry 192.168.59.103:5000 --insecure-registry dockerhost:5000 --insecure-registry 10.245.2.3:5000 --insecure-registry 10.245.2.4:5000"
Port forward 8443 in virtualbox:
Protocol: 443
Host IP: 127.0.0.1
Host Port: 8443
Guest Port: 8443
Use docker from our host to run openshift:
docker run \
-v /var/run/docker.sock:/var/run/docker.sock \
-v /:/rootfs:ro -v /var/run:/var/run:rw -v /sys:/sys -v /v/lib/docker:/var/lib/docker:rw \
--name=origin \
--net=bridge \
-p 8443:8443 \
--privileged \
openshift/origin start --listen=https://0.0.0.0:8443/ --public-master=https://127.0.0.1:8443 --loglevel=4 && \
docker exec -ti origin bash
Note that we have to let openshift know that it will be serving on 127.0.0.1: --public-master=https://127.0.0.1:8443
In a new tab:
# this command allows the docker commands to be used in the terminal
eval "$(docker-machine env vm-docker)"
# ssh into our vm running docker
docker-machine ssh vm-docker
Now that we're in vm-docker:
# We want to check the IP of our openshift/origin container
docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
cb776495a7b9 openshift/origin "/usr/bin/openshift s" 6 minutes ago Up 6 minutes 53/tcp, 0.0.0.0:8443->8443/tcp origin
# Either run a bash shell in our container:
docker exec -it cb776495a7b9 bash
$ openshift cli status
# Or simply query the container from our docker machine vm
docker exec -it cb776495a7b9 openshift cli status
$ In project default on server https://172.17.0.2:8443
svc/kubernetes - 172.30.0.1 ports 443, 53, 53
View details with 'oc describe <resource>/<name>' or list everything with 'oc get all'.
# Ensure that we can curl our openshift console page from our docker-machine vm:
curl -ik https://172.17.0.2:8443/console/
# exit the docker-machine vm
exit
From our Mac OSX host command line:
# We should be able to curl our openshift console page on localhost:
curl -ik https://127.0.0.1:8443/console/
Visit the console in our browser:
https://localhost:8443/console/
Initially, you can use any username / password, and OpenShift will use this to create an account, such that you can use these credentials on successive logins.
We can also access our account directly in the OpenShift container
# ssh into our vm running docker
docker-machine ssh vm-docker
# We want to check the IP of our openshift/origin container
docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
cb776495a7b9 openshift/origin "/usr/bin/openshift s" 6 minutes ago Up 6 minutes 53/tcp, 0.0.0.0:8443->8443/tcp origin
# Either run a bash shell in our container:
docker exec -it cb776495a7b9 bash
# Now that we're in the OpenShift container, login:
oc login https://localhost:8443
References:
https://kurtstam.github.io/2015/03/31/Getting-started-with-Fabric8-and-OpenShift-v3-on-OSX.html https://sosiouxme.wordpress.com/2015/01/02/openshift-3-from-zero/ https://blog.openshift.com/openshift-v3-deep-dive-docker-kubernetes/ https://zwischenzugs.wordpress.com/2015/04/01/play-with-an-openshift-paas-using-docker/ https://www.manning.com/books/docker-in-practice?a_bid=e0d48f62&a_aid=zwischenzugs https://github.com/openshift/openshift-ansible https://blog.openshift.com/quick-tip-running-wildfly-docker-image-on-openshift-origin/ https://github.com/openshift/origin/blob/master/examples/sample-app/container-setup.md https://github.com/dlbewley/dlbewley.github.io/blob/master/_posts/2015-06-28-Testing-Openshift-Origin-V3-with-Ansible-and-Vagrant-on-OS-X.md
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