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progetti:cloud-areapd:operations:preproduction_cloud:installation_instructions_for_compute_node
Table of Contents
Installation Instructions for Compute Node
Initial setup
Node installed via Foreman with:
- OS: SL6.5
- SELinux configured as "permissive" (
/etc/selinux/config) - EPEL 6 repo installed
- RDO Havana repo installed
- em1 interface configured with address on management network
- em2 connected to a port with VLAN 302 enabled
Disable SELinux
Configure SELINUX=disabled in /etc/selinux/config and then reboot.
After reboot, confirm that the getenforce command returns Disabled
# getenforce
Disabled
Configure IP tables to allow traffic through relevant TCP ports
Put the following lines in the file /etc/sysconfig/iptables just before the first line where there's a REJECT rule:
-A INPUT -p tcp -m state --state NEW -m tcp --dport 5900:5999 -j ACCEPT
Restart IPTables:
service iptables restart
Configure sysctl.conf
sed -i 's+^net\.ipv4\.conf\.default\.rp_filter+#net\.ipv4\.conf\.default\.rp_filter+' /etc/sysctl.conf sed -i 's+^net\.ipv4\.conf\.all\.rp_filter+#net\.ipv4\.conf\.all\.rp_filter+' /etc/sysctl.conf cat << EOF >> /etc/sysctl.conf net.ipv4.conf.all.rp_filter=0 net.ipv4.conf.default.rp_filter=0 EOF sysctl -p
Configure Second Network interface
Configure the em2 interface with an address on the data network.
Edit the file /etc/sysconfig/network-scripts/ifcfg-em2, e.g.:
DEVICE="em2" BOOTPROTO="static" NM_CONTROLLED="no" ONBOOT="yes" TYPE="Ethernet" IPADDR="192.168.61.131" NETMASK="255.255.255.0"
Reboot the machine:
shutdown -r now
Configure the filesystem for instances
Install glusterfs client:
yum install glusterfs-client
Add in /etc/fstab the following line:
192.168.60.100:/volume-nova-pp /var/lib/nova/instances glusterfs defaults 1 1
Mount the file system:
mkdir -p /var/lib/nova/instances mount -a
Install software
Install Nova and Neutron's packages:
yum -y install openstack-nova-compute openstack-utils openstack-neutron-openvswitch
Configure Nova
In the following, replace 192.168.60.112 with the IP management address of your compute node
nova.conf
openstack-config --set /etc/nova/nova.conf database connection "mysql://nova_pp:<NOVA_DB_PWD>@192.168.60.10/nova_pp" openstack-config --set /etc/nova/nova.conf database max_pool_size 30 openstack-config --set /etc/nova/nova.conf DEFAULT rpc_conn_pool_size 50 openstack-config --set /etc/nova/nova.conf DEFAULT auth_strategy keystone openstack-config --set /etc/nova/nova.conf keystone_authtoken auth_host 192.168.60.111 openstack-config --set /etc/nova/nova.conf keystone_authtoken auth_protocol http openstack-config --set /etc/nova/nova.conf keystone_authtoken auth_port 35357 openstack-config --set /etc/nova/nova.conf keystone_authtoken admin_user nova openstack-config --set /etc/nova/nova.conf keystone_authtoken admin_tenant_name services openstack-config --set /etc/nova/nova.conf keystone_authtoken admin_password NOVA_PASS openstack-config --set /etc/nova/nova.conf DEFAULT rpc_backend nova.openstack.common.rpc.impl_kombu openstack-config --set /etc/nova/nova.conf DEFAULT rabbit_hosts 192.168.60.111:5672 openstack-config --set /etc/nova/nova.conf DEFAULT my_ip 192.168.60.112 openstack-config --set /etc/nova/nova.conf DEFAULT vnc_enabled True openstack-config --set /etc/nova/nova.conf DEFAULT vncserver_listen 0.0.0.0 openstack-config --set /etc/nova/nova.conf DEFAULT libvirt_vif_driver nova.virt.libvirt.vif.LibvirtHybridOVSBridgeDriver # Put here the compute node management's IP openstack-config --set /etc/nova/nova.conf DEFAULT vncserver_proxyclient_address 192.168.60.112 # The following IP must be changed with the public VIP for the controller (which runs the dashboard) openstack-config --set /etc/nova/nova.conf DEFAULT novncproxy_base_url http://90.147.77.39:6080/vnc_auto.html openstack-config --set /etc/nova/nova.conf DEFAULT glance_host 192.168.60.111 openstack-config --set /etc/nova/nova.conf DEFAULT compute_driver nova.virt.libvirt.LibvirtDriver openstack-config --set /etc/nova/nova.conf DEFAULT api_paste_config /etc/nova/api-paste.ini openstack-config --set /etc/nova/nova.conf DEFAULT network_api_class nova.network.neutronv2.api.API openstack-config --set /etc/nova/nova.conf DEFAULT neutron_url http://192.168.60.111:9696 openstack-config --set /etc/nova/nova.conf DEFAULT neutron_auth_strategy keystone openstack-config --set /etc/nova/nova.conf DEFAULT neutron_admin_tenant_name services openstack-config --set /etc/nova/nova.conf DEFAULT neutron_admin_username neutron openstack-config --set /etc/nova/nova.conf DEFAULT neutron_admin_password NEUTRON_PASS openstack-config --set /etc/nova/nova.conf DEFAULT neutron_admin_auth_url http://192.168.60.111:35357/v2.0 openstack-config --set /etc/nova/nova.conf DEFAULT linuxnet_interface_driver nova.network.linux_net.LinuxOVSInterfaceDriver openstack-config --set /etc/nova/nova.conf DEFAULT security_group_api neutron openstack-config --set /etc/nova/nova.conf DEFAULT firewall_driver nova.virt.firewall.NoopFirewallDriver openstack-config --set /etc/nova/nova.conf DEFAULT libvirt_inject_password true openstack-config --set /etc/nova/nova.conf DEFAULT cpu_allocation_ratio 4.0
api-paste.ini
openstack-config --set /etc/nova/api-paste.ini filter:authtoken paste.filter_factory keystoneclient.middleware.auth_token:filter_factory openstack-config --set /etc/nova/api-paste.ini filter:authtoken auth_host 192.168.60.111 openstack-config --set /etc/nova/api-paste.ini filter:authtoken auth_port 35357 openstack-config --set /etc/nova/api-paste.ini filter:authtoken auth_protocol http openstack-config --set /etc/nova/api-paste.ini filter:authtoken admin_tenant_name services openstack-config --set /etc/nova/api-paste.ini filter:authtoken admin_user nova openstack-config --set /etc/nova/api-paste.ini filter:authtoken admin_password NOVA_PASS
Configure Neutron's agents
In the following, replace 192.168.61.112 with the IP data address of your compute node
neutron.conf
openstack-config --set /etc/neutron/neutron.conf DEFAULT core_plugin neutron.plugins.openvswitch.ovs_neutron_plugin.OVSNeutronPluginV2 openstack-config --set /etc/neutron/neutron.conf DEFAULT api_paste_config /etc/neutron/api-paste.ini openstack-config --set /etc/neutron/neutron.conf DEFAULT rpc_backend neutron.openstack.common.rpc.impl_kombu openstack-config --set /etc/neutron/neutron.conf DEFAULT rabbit_hosts 192.168.60.111:5672 openstack-config --set /etc/neutron/neutron.conf keystone_authtoken auth_host 192.168.60.111 openstack-config --set /etc/neutron/neutron.conf keystone_authtoken admin_user neutron openstack-config --set /etc/neutron/neutron.conf keystone_authtoken admin_password NEUTRON_PASS openstack-config --set /etc/neutron/neutron.conf keystone_authtoken auth_url http://192.168.60.111:35357/v2.0 openstack-config --set /etc/neutron/neutron.conf DEFAULT auth_strategy keystone openstack-config --set /etc/neutron/neutron.conf keystone_authtoken admin_tenant_name services openstack-config --set /etc/neutron/neutron.conf agent root_helper "sudo neutron-rootwrap /etc/neutron/rootwrap.conf" openstack-config --set /etc/neutron/neutron.conf database connection "mysql://neutron_pp:<NEUTRON_DB_PWD>@192.168.60.10/neutron_pp"
ovs_neutron_plugin.ini
openstack-config --set /etc/neutron/plugins/openvswitch/ovs_neutron_plugin.ini ovs tenant_network_type gre openstack-config --set /etc/neutron/plugins/openvswitch/ovs_neutron_plugin.ini ovs tunnel_id_ranges 1:1000 openstack-config --set /etc/neutron/plugins/openvswitch/ovs_neutron_plugin.ini ovs enable_tunneling True openstack-config --set /etc/neutron/plugins/openvswitch/ovs_neutron_plugin.ini ovs integration_bridge br-int openstack-config --set /etc/neutron/plugins/openvswitch/ovs_neutron_plugin.ini ovs tunnel_bridge br-tun openstack-config --set /etc/neutron/plugins/openvswitch/ovs_neutron_plugin.ini ovs local_ip 192.168.61.112 openstack-config --set /etc/neutron/plugins/openvswitch/ovs_neutron_plugin.ini \ securitygroup firewall_driver neutron.agent.linux.iptables_firewall.OVSHybridIptablesFirewallDriver ln -s /etc/neutron/plugins/openvswitch/ovs_neutron_plugin.ini /etc/neutron/plugin.ini
(Neutron L2 agent's) api-paste.ini
openstack-config --set /etc/neutron/api-paste.ini filter:authtoken paste.filter_factory keystoneclient.middleware.auth_token:filter_factory openstack-config --set /etc/neutron/api-paste.ini filter:authtoken auth_host 192.168.60.111 openstack-config --set /etc/neutron/api-paste.ini filter:authtoken admin_tenant_name services openstack-config --set /etc/neutron/api-paste.ini filter:authtoken admin_user neutron openstack-config --set /etc/neutron/api-paste.ini filter:authtoken admin_password NEUTRON_PASS
Bridge creation and start of the services
Open vSwitch start and bridge creation
service openvswitch start chkconfig openvswitch on ovs-vsctl add-br br-int
L2 Agent start:
service neutron-openvswitch-agent start chkconfig neutron-openvswitch-agent on chkconfig neutron-ovs-cleanup on
Start Services:
service libvirtd start service messagebus start service openstack-nova-compute start chkconfig libvirtd on chkconfig messagebus on chkconfig openstack-nova-compute on
Check it
When done, log into the controller node, or wherever you've installed the Openstack CLI and copied the keystone_admin.sh. Execute the commands:
# neutron agent-list # neutron agent-list +--------------------------------------+--------------------+---------------------------------+-------+----------------+ | id | agent_type | host | alive | admin_state_up | +--------------------------------------+--------------------+---------------------------------+-------+----------------+ | 24dfcaf6-21f5-4ed5-8117-e00c3472a23e | L3 agent | first | :-) | True | | 2a20e0ce-71c1-493c-b66a-673cbe19f779 | Open vSwitch agent | cloudpp-areapd.cloud.pd.infn.it | :-) | True | | 344dce81-936f-4ed3-8d5c-545c75dab705 | DHCP agent | cloudpp-areapd.cloud.pd.infn.it | :-) | True | | 8371acad-62bb-48b7-a4db-92be8aa0ac97 | L3 agent | second | :-) | True | | 8de9e013-3271-48ef-941b-d5732a6d309b | Open vSwitch agent | cld-np-02.cloud.pd.infn.it | :-) | True | +--------------------------------------+--------------------+---------------------------------+-------+----------------+ # nova service-list +------------------+---------------------------------+----------+---------+-------+----------------------------+-----------------+ | Binary | Host | Zone | Status | State | Updated_at | Disabled Reason | +------------------+---------------------------------+----------+---------+-------+----------------------------+-----------------+ | nova-cert | cloudpp-areapd.cloud.pd.infn.it | internal | enabled | up | 2014-04-29T10:12:59.000000 | - | | nova-consoleauth | cloudpp-areapd.cloud.pd.infn.it | internal | enabled | up | 2014-04-29T10:12:59.000000 | - | | nova-scheduler | cloudpp-areapd.cloud.pd.infn.it | internal | enabled | up | 2014-04-29T10:12:59.000000 | - | | nova-conductor | cloudpp-areapd.cloud.pd.infn.it | internal | enabled | up | 2014-04-29T10:12:59.000000 | - | | nova-compute | cld-np-02.cloud.pd.infn.it | nova | enabled | up | 2014-04-29T10:12:51.000000 | - | +------------------+---------------------------------+----------+---------+-------+----------------------------+-----------------+
Install Nagios sensors
Create the file /usr/local/bin/nagios_check_ovs.sh with this content:
#!/bin/sh
#
# Nagios server
nagios_server="cld-nagios.cloud.pd.infn.it"
#
# Nagios client confifuration file
nagios_conf="/etc/nagios/send_nsca.cfg"
#
hostname=`/bin/hostname -s`
#
ovs_status=`/sbin/service openvswitch status | tr '\n' ';'`
ovs_status_retcode=$?
overall_msg=${ovs_status}
if [ $ovs_status_retcode -ne 0 ]; then
echo -e "$hostname\tOpenvSwitch\t2\t${overall_msg}\n" | /usr/sbin/send_nsca -H ${nagios_server} -c ${nagios_conf}
exit
fi
ovs_ofctl_out=`ovs-ofctl dump-flows br-tun`
if [[ ${ovs_ofctl_out} == *table=0* ]] && [[ ${ovs_ofctl_out} == *actions=resubmit* ]]; then
overall_msg="${overall_msg} String 'table=0' 'actions=resubmit' found in ovs_ofctl outputput"
retcode=0
else
overall_msg="${overall_msg} Strings 'table=0' 'actions=resubmit' not found in ovs_ofctl outputput"
retcode=2
fi
echo -e "$hostname\tOpenvSwitch\t${retcode}\t${overall_msg}\n" | /usr/sbin/send_nsca -H ${nagios_server} -c ${nagios_conf}
Copy as /usr/local/bin/check_kvm the script available at check_kvm.txt (the file has a txt extension just because this wiki doesn't like files without extensions).
Create the script /usr/local/bin/check_kvm_wrapper.sh with this content:
#!/bin/sh
#Nagios server
nagios_server="cld-nagios.cloud.pd.infn.it"
#
# Nagios client confifuration file
nagios_conf="/etc/nagios/send_nsca.cfg"
#
hostname=`/bin/hostname -s`
#
kvm_status=`/usr/local/bin/check_kvm`
kvm_status_retcode=$?
echo -e "$hostname\tKVM\t${kvm_status_retcode}\t${kvm_status}\n" | /usr/sbin/send_nsca -H ${nagios_server} -c ${nagios_conf}
cat << EOF > /etc/cron.d/nagios_check_ovs 0 */1 * * * root /usr/local/bin/nagios_check_ovs.sh EOF chmod +x /usr/local/bin/nagios_check_ovs.sh chmod 0644 /etc/cron.d/nagios_check_ovs
cat << EOF > /etc/cron.d/nagios_check_kvm 0 */1 * * * root /usr/local/bin/check_kvm_wrapper.sh EOF chmod +x /usr/local/bin/check_kvm chmod +x /usr/local/bin/check_kvm_wrapper.sh chmod 0644 /etc/cron.d/nagios_check_kvm
progetti/cloud-areapd/operations/preproduction_cloud/installation_instructions_for_compute_node.txt · Last modified: 2014/11/18 13:18 by sgaravat@infn.it
