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CDK and Openshift #8

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helio-frota opened this issue Jun 27, 2016 · 8 comments
Closed
7 tasks done

CDK and Openshift #8

helio-frota opened this issue Jun 27, 2016 · 8 comments

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@helio-frota
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helio-frota commented Jun 27, 2016 •
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  • Setup
  • Openshift Origin
  • Explore [overview] REST API
  • How much control did you have over the version of node you used?
  • What about ongoing development?
  • What is the workflow like?
  • What is required to see and test changes locally?
@helio-frota
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helio-frota commented Jun 27, 2016 •
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Setup

Installation using RHEL 7

[Almost equal] / Based on : Container development kit installation guide

Registration required: https://developers.redhat.com

Virtualization support BIOS enabled required

Download and install RHLE 7 and create at least one non-root user

As root #

subscription-manager repos --enable rhel-server-rhscl-7-rpms
subscription-manager repos --enable rhel-7-server-optional-rpms
yum-config-manager --add-repo=http://mirror.centos.org/centos-7/7/sclo/x86_64/sclo/
echo "gpgcheck=0" >> /etc/yum.repos.d/mirror.centos.org_centos-7_7_sclo_x86_64_sclo_.repo

kill packagekitd in case locking yum

ps -aux | grep "kit" 
kill -9 [ packagekitd PID ]
yum -y update
yum groupinstall -y "Virtualization Host"
systemctl start libvirtd
systemctl enable libvirtd

Need to specify the version 1.7.4 ---- sclo-vagrant1-vagrant-1.7.4

yum install sclo-vagrant1-vagrant-1.7.4 sclo-vagrant1-vagrant-libvirt sclo-vagrant1-vagrant-libvirt-doc sclo-vagrant1-vagrant-registration
cp /opt/rh/sclo-vagrant1/root/usr/share/vagrant/gems/doc/vagrant-libvirt-0.0.32/polkit/10-vagrant-libvirt.rules /etc/polkit-1/rules.d/
systemctl restart libvirtd
systemctl restart polkit
usermod -a -G vagrant non-root-user-here

Is good to logout all the users to be sure about group addition

[hf@localhost ~]$ id 
uid=1000(hf) gid=1000(hf) groups=1000(hf),10(wheel),982(vagrant) context=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023
[hf@localhost ~]$ cat /etc/group | grep vagrant
vagrant:x:982:hf
[hf@localhost ~]$

As user $

Download 2 files:

  1. cdk-2.1.0.zip
  2. rhel-cdk-kubernetes-7.2-25.x86_64.vagrant-libvirt.box
unzip Downloads/cdk-2.1.0.zip
cd cdk/plugins/
scl enable sclo-vagrant1 bash
vagrant global-status
vagrant plugin install ./vagrant-registration-1.2.2.gem ./vagrant-service-manager-1.1.0.gem ./vagrant-sshfs-1.1.0.gem
vagrant box add --name cdkv2 rhel-cdk-kubernetes-7.2-25.x86_64.vagrant-libvirt.box
vagrant box list
cd Downloads/cdk/components/rhel/rhel-ose
vagrant up

After reboot you can keep doing this:

scl enable sclo-vagrant1 bash
cd Downloads/cdk/components/rhel/rhel-ose/
vagrant up

In case openshift not started:

vagrant provision

Example output running:

[hf@localhost ~]$ scl enable sclo-vagrant1 bash
[hf@localhost ~]$ cd Downloads/cdk/components/rhel/rhel-ose/
[hf@localhost rhel-ose]$ vagrant up
Bringing machine 'default' up with 'libvirt' provider...
==> default: Starting domain.
==> default: Waiting for domain to get an IP address...
==> default: Waiting for SSH to become available...
==> default: Creating shared folders metadata...
==> default: Registering box with vagrant-registration...
    default: Would you like to register the system now (default: yes)? [y|n]n
==> default: Copying TLS certificates to /home/hf/Downloads/cdk/components/rhel/rhel-ose/.vagrant/machines/default/libvirt/docker
==> default: Rsyncing folder: /home/hf/Downloads/cdk/components/rhel/rhel-ose/ => /vagrant
==> default: Machine already provisioned. Run `vagrant provision` or use the `--provision`
==> default: flag to force provisioning. Provisioners marked to run always will still run.
[hf@localhost rhel-ose]$ vagrant provision
==> default: Running provisioner: shell...
    default: Running: inline script
==> default: Running provisioner: shell...
    default: Running: inline script
==> default: Successfully started and provisioned VM with 2 cores and 3072 MB of memory.
==> default: To modify the number of cores and/or available memory set the environment variables
==> default: VM_CPU respectively VM_MEMORY.
==> default: You can now access the OpenShift console on: https://10.1.2.2:8443/console
==> default: To use OpenShift CLI, run:
==> default: $ vagrant ssh
==> default: $ oc login 10.1.2.2:8443
==> default: Configured users are (<username>/<password>):
==> default: openshift-dev/devel
==> default: admin/admin
==> default: If you have the oc client library on your host, you can also login from your host.
[hf@localhost rhel-ose]$

@helio-frota
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helio-frota commented Jul 5, 2016 •
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Explore [overview] REST API

example getting the auth-token:

oc login https://10.1.2.2:8443
oc whoami -t
ks0K_rCQlv23UudZGFCIA7gYj2cr1nDDIo_D4-c3JQs

API : https://10.1.2.2:8443/swaggerapi/api/v1

I think a client can be done.

auth-token running on travis:
https://travis-ci.org/helio-frota/poctravis/builds/142560434#L265

@helio-frota
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helio-frota commented Jul 5, 2016 •
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Openshift Origin

Fedora 24 setup:

wget https://github.com/openshift/origin/releases/download/v1.3.0-alpha.2/openshift-origin-server-v1.3.0-alpha.2-983578e-linux-64bit.tar.gz
tar xvzf openshift-origin-server-v1.3.0-alpha.2-983578e-linux-64bit.tar.gz
sudo dnf install docker
sudo systemctl start docker
sudo systemctl enable docker
sudo ./openshift start

Or using docker:
https://docs.openshift.org/latest/getting_started/administrators.html#running-in-a-docker-container

https://external_host_ip:8443/console/ [ not localhost ]

Script to start openshift origin and get a token using travis-CI
https://github.com/helio-frota/poctravis/blob/master/test.sh

After login, we have no images or templates to create new apps.
Good to explore this and try origin instead CDK ?

a

@helio-frota helio-frota changed the title CDK Openshift CDK and Openshift Jul 6, 2016
@sebastienblanc
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When I started to play with CDK, I used this document written by @burrsutter , it's using a nodejs sample app and I recommend it to you to discover CDK (and Kubernetes)

@helio-frota
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@sebastienblanc thanks for share!

@helio-frota
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How much control did you have over the version of node you used?

I think this is the easiest way to run any version of node with OSv3 :
https://hub.docker.com/r/ryanj/centos7-s2i-nodejs/

oc new-app ryanj/centos7-s2i-nodejs:RELEASE~REPO_URL

example I used:

oc new-app ryanj/centos7-s2i-nodejs:4.4.6~https://github.com/helio-frota/ost.git

@helio-frota
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helio-frota commented Jul 11, 2016 •
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What about ongoing development?
What is the workflow like?
What is required to see and test changes locally?

  1. Register http://www.ultrahook.com
  2. gem install ultrahook
  3. echo "api_key: your_api_key_here" > ~/.ultrahook
  4. Get the webhook URL of your app on Openshift and register using (example) :
ultrahook github https://10.1.2.2:8443/oapi/v1/namespaces/foo/buildconfigs/ost/webhooks/1EgA6Quakh-nM9zTy2ym/github

Go to github and add webhook using your registered ultrahook account

Full article

After this for each push on github a build is trigged inside local openshift.

Create a route (click on create route and save) and take a look on changes locally using the generated URL. Example:
http://ost-foo.rhel-cdk.10.1.2.2.xip.io/

App used for this tests:
https://github.com/helio-frota/ost

@helio-frota
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https://helio-frota.github.io/post/minishift-ubuntu/

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@sebastienblanc @helio-frota