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demobuilder's Issues

Some ISPs cause S2I build issues by resolving openshift.example.com

This problem was noticed when connecting to consumer ISP BT Broadband in the UK.

BT use a service backed by barefruit.co.uk which intercepts unresolvable DNS requests and returns a 'search' page with ads.

When connecting to this ISP and using a Macbook with VirtualBox, this appears to cause an issue with the S2I build (the nodejs-ex example fails during build). The S2I builder fails during git clone on git://openshift.example.com, unable to connect to the barefruit.co.uk IP returned by the BT router.

Setting of default domain correctly

Is it possible to get the installation to default the domain on application creation to xxxx.cloudapps.example.com - currently it defaults to openshiftapps.com which if you forget to change it makes the service unreachable.

Is this a config option in OSE3 install?

document a simple demo

Create an out of the box sample app (from a template) (UI and oc new-app)
Create an out of the box sample app (via a git repo) (UI and oc new-app)
Update app source -> push to PaaS
Connect Java debugger (optional)
oc rsh - remote shell to image (optional)
rollback (optional)
scalability (optional)

RAM is reserved for the kdump kernel

The openshift 3.0.1 offline image (and possibly others) have "crashkernel=auto" configured, which leads to RAM beeing reserved for kdump instead of beeing available for the kernel:

$ dmesg|grep crash
[ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-3.10.0-229.11.1.el7.x86_64 root=UUID=3e97515d-5a4a-418c-9754-252537d3ff45 ro crashkernel=auto LANG=en_US.UTF-8 net.ifnames=0
[ 0.000000] Reserving 161MB of memory at 704MB for crashkernel (System RAM: 4095MB)

This is probably not desired for this usage, the crashkernel option should be removed.

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