devtest_testenv
===============


This script is usually called from devtest.sh as
devtest_testenv.sh $TE_DATAFILE
::

        JSONFILE=${1:-''}


#. Configure a network for your test environment.
   This configures an openvswitch bridge and teaches libvirt about it.
   ::

        setup-network

#. Configure a seed VM. This VM has a disk image manually configured by
   later scripts, and hosts the statically configured seed which is used
   to bootstrap a full dynamically configured baremetal cloud.
   ::

        setup-seed-vm -a $NODE_ARCH

#. Create baremetal nodes for the test cluster. The final parameter to
   create-nodes is the number of VMs to create. To change this in future
   you can either run clean-env and then recreate with more nodes, or
   use create-nodes to make more nodes then add their macs to your
   testenv.json.
   ::

        NODE_CNT=$(( $OVERCLOUD_COMPUTESCALE + 2 ))
        MACS=$(create-nodes $NODE_CPU $NODE_MEM $NODE_DISK $NODE_ARCH $NODE_CNT | tr '\r\n' ' ')

#. What IP address to ssh to for virsh operations.
   ::

        HOSTIP=${HOSTIP:-192.168.122.1}

#. If a static SEEDIP is in use, define it here. If not defined it will be
   looked up in the ARP table by the seed MAC address during seed deployment.
   ::

        SEEDIP=${SEEDIP:-''}

#. Ensure we can ssh into the host machine to turn VMs on and off.
   The private key we create will be embedded in the seed VM, and delivered
   dynamically by heat to the undercloud VM.
   ::

        # generate ssh authentication keys if they don't exist
        if [ ! -f ~/.ssh/id_rsa_virt_power ]; then
            ssh-keygen -t rsa -N "" -C virtual-power-key -f ~/.ssh/id_rsa_virt_power
        fi

        # make the local id_rsa_virt_power.pub be in .ssh/authorized_keys before
        # that is copied into images via local-config
        if ! grep -qF "$(cat ~/.ssh/id_rsa_virt_power.pub)" ~/.ssh/authorized_keys; then
            cat ~/.ssh/id_rsa_virt_power.pub >> ~/.ssh/authorized_keys
            chmod 0600 ~/.ssh/authorized_keys
        fi

#. Finally wrap this all up into JSON.
   ::

        python -c "import json, sys, os; json.dump({'arch':'$NODE_ARCH', 'host-ip':'$HOSTIP', 'power_manager':'$POWER_MANAGER', 'seed-ip':'$SEEDIP', 'node-macs':'$MACS', 'ssh-key': open(os.path.expanduser('~/.ssh/id_rsa_virt_power'), 'rt').read(), 'ssh-user':'`whoami`'}, sys.stdout)" > $JSONFILE