Fix neutron agents start in OCF

[Bogdan Dobrelya]

neutron agents start command in OCF contains wrong redirection:
    su ${OCF_RESKEY_user} -s /bin/sh -c "${OCF_RESKEY_binary} --config-file=$OCF_RESKEY_config \
        --config-file=$OCF_RESKEY_plugin_config --log-file=$OCF_RESKEY_log_file $OCF_RESKEY_additional_parameters "' 2>&1 &'

And this one prevents start action to be completed detached
The fix should be:
        --config-file=$OCF_RESKEY_plugin_config --log-file=$OCF_RESKEY_log_file $OCF_RESKEY_additional_parameters \
         >> /dev/null"' 2>&1 & echo $!' > $OCF_RESKEY_pid

This one will redirect output to /dev/null due to we use --log-file (https://bugs.launchpad.net/fuel/+bug/1371629) AND fix pid-file creation as well

How to reproduce:
* Deploy Ha neutron environment from latest 6.0 ISO
* Login to primary controller node and issue:
pcs resource disable clone_p_neutron-openvswitch-agent || pcs resource disable p_neutron-plugin-openvswitch-agent
OCF_ROOT=/usr/lib/ocf OCF_RESKEY_plugin_config=/etc/neutron/plugin.ini /usr/lib/ocf/resource.d/mirantis/neutron-agent-ovs stop;
OCF_ROOT=/usr/lib/ocf OCF_RESKEY_plugin_config=/etc/neutron/plugin.ini /usr/lib/ocf/resource.d/mirantis/neutron-agent-ovs start

Expected: it should run neutron agent ovs process detached and put its pid to $OCF_RESKEY_pid destination

Actual: it will run in foreground and will not create a pid file.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/132691

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/132691
Committed: https://git.openstack.org/cgit/stackforge/fuel-library/commit/?id=5ab922e5ac9680fd99c16fe552096efcc9388ed2
Submitter: Jenkins
Branch: master

commit 5ab922e5ac9680fd99c16fe552096efcc9388ed2
Author: Bogdan Dobrelya <email address hidden>
Date: Tue Nov 4 17:19:07 2014 +0100

    Fix neutron-agents start commands in OCF

    W/o this fix, n-agents can not detach start command
    and create a pidfile
    The solution is to fix start command as appropriate

    Closes-bug: #1389299

    Change-Id: I46e1cf286622db0d64e9f17f72ed632e43906e05
    Signed-off-by: Bogdan Dobrelya <email address hidden>

[Anastasia Palkina (apalkina)]

Verified on ISO #49

"build_id": "2014-12-09_22-41-06", "ostf_sha": "a9afb68710d809570460c29d6c3293219d3624d4", "build_number": "49", "auth_required": true, "api": "1.0", "nailgun_sha": "22bd43b89a17843f9199f92d61fc86cb0f8772f1", "production": "docker", "fuelmain_sha": "3aab16667f47dd8384904e27f70f7a87ba15f4ee", "astute_sha": "16b252d93be6aaa73030b8100cf8c5ca6a970a91", "feature_groups": ["mirantis"], "release": "6.0", "release_versions": {"2014.2-6.0": {"VERSION": {"build_id": "2014-12-09_22-41-06", "ostf_sha": "a9afb68710d809570460c29d6c3293219d3624d4", "build_number": "49", "api": "1.0", "nailgun_sha": "22bd43b89a17843f9199f92d61fc86cb0f8772f1", "production": "docker", "fuelmain_sha": "3aab16667f47dd8384904e27f70f7a87ba15f4ee", "astute_sha": "16b252d93be6aaa73030b8100cf8c5ca6a970a91", "feature_groups": ["mirantis"], "release": "6.0", "fuellib_sha": "2c99931072d951301d395ebd5bf45c8d401301bb"}}}, "fuellib_sha": "2c99931072d951301d395ebd5bf45c8d401301bb"