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progetti:cloud-areapd:keystone-glance_high_availability:openstack_ha:temporary_compute [2014/09/15 08:44] – [Optional: Configure Nova Compute for SSL] dorigoa@infn.itprogetti:cloud-areapd:keystone-glance_high_availability:openstack_ha:temporary_compute [2015/03/27 09:19] (current) – [Install software] dorigoa@infn.it
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 +======= Installation and Configuration of OpenStack Compute Node =======
  
 +Author:
 +   * Alvise Dorigo (INFN Padova)
 +===== Prerequisites =====
 +   * [[http://wiki.infn.it/progetti/cloud-areapd/keystone-glance_high_availability/openstack_ha/controller_node|Controller node install & setup]]
 +
 +At least one node with:
 +   * Updated SL6/CentOS6 (6.4 or 6.5) 
 +   * Make sure that yum autoupdate is disabled
 +<code bash>
 +root@controller-01 ~]# grep ENA /etc/sysconfig/yum-autoupdate
 +# ENABLED
 +ENABLED="false"
 +</code> 
 +   * At least 20GB HD for operating system and OpenStack software and related log files 
 +   * Dedicated storage mounted on ''/var/lib/nova/instances'' where to store the instance images (particularly important to get live migration). At Gluster server side, the admin must have set:
 +<code bash>
 +gluster volume set <exported_volume_name> owner-uid 162
 +gluster volume set <exported_volume_name> owner-gid 162
 +</code>
 +where <exported_volume_name> is the volume exported from the Gluster server to the compute node (that will mounted on ''/var/lib/nova/instances''), and 162 is the usual ID e GID of the nova user.
 +
 +<del>Please consider this [[https://bugzilla.redhat.com/show_bug.cgi?id=1057645|bug]] which seems to prevent the correct working of live migration with GlusterFS. "Fallback" to NFS protocol seems to be to only possible workaround so far.</del>
 +
 +   * SELinux configured as "Disabled" (''/etc/selinux/config'')
 +   * EPEL 6-8
 +   * A MySQL (possibly a HA cluster) endpoint each OpenStack service can connect to (in this guide we're using our MySQL Percona cluster's IP 192.168.60.10)
 +   * A HAProxy/Keepalived cluster to use for load-balancing and Virtual IP (in this guide we're using the IP 192.168.60.40 for mgmt net and 90.147.77.40 for public net)
 +   * Installed CA INFN certificate on both nodes
 +<code bash>
 +[root@network-01 ~]# ll /etc/grid-security/certificates/INFN-CA-2006.pem 
 +-rw-r--r-- 1 root root 1257 Jun  5 19:05 /etc/grid-security/certificates/INFN-CA-2006.pem
 +</code>
 +   * Installed and active libvirt
 +<code bash>
 +yum -y install libvirt
 +chkconfig libvirtd on
 +service libvirtd start
 +</code>
 +   * Activated virtualization on CPU (can be toggled in the BIOS menu):
 +<code bash>
 +cat /proc/cpuinfo | grep vmx
 +flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc arch_perfmon pebs bts rep_good aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca sse4_1 lahf_lm dts tpr_shadow vnmi flexpriority
 +
 +lsmod |grep kvm
 +kvm_intel              54285  12 
 +kvm                   332980  1 kvm_intel
 +
 +lscpu |grep -i virtu
 +Virtualization:        VT-x
 +
 +</code>
 +Note: ''kvm_intel'' can be substituted by ''kvm_amd'', and ''VT-x'' can be substituted by ''AMD-V''.
 +===== Naming conventions and networking assumptions =====
 +We assume that the compute node has the following network setup:
 +   * It has two network interface connected to two different networks: **management network** and **data network**
 +   * **Management network** is: ''192.168.60.0/24''
 +   * **Data network** is: ''192.168.61.0/24''
 +   * Node are named: ''compute.cloud.pd.infn.it'' (''192.168.60.43''), ''compute.data.infn.it'' (''90.147.77.43'')
 +
 +==== Further pre-requisite on data network interface ====
 +In the net-interface configuration script for data network (something like ''/etc/sysconfig/network-scripts/ifcfg-XYZ'') put the following parameter:
 +<code bash>
 +MTU="9000"
 +</code>
 +===== IPTables configuration =====
 +Execute the following commands:
 +<code bash>
 +# VNC's TCP ports
 +iptables -A INPUT -p tcp -m state --state NEW -m tcp --dport 5900:5999 -j ACCEPT
 +# libvirtd's TCP ports
 +iptables -A INPUT -m state --state NEW -m tcp -p tcp --dport 16509 -j ACCEPT
 +# libvirtd's ephemeral ports
 +iptables -A INPUT -m state --state NEW -m tcp -p tcp --dport 49152:49261 -j ACCEPT
 +# permit ntpd's udp communications
 +iptables -A INPUT -p udp -m state --state NEW -m udp --dport 123 -j ACCEPT
 +
 +mv /etc/sysconfig/iptables /etc/sysconfig/iptables.orig
 +iptables-save > /etc/sysconfig/iptables
 +chkconfig iptables on
 +chkconfig ip6tables off
 +service iptables restart
 +</code>
 +
 +===== Naming conventions and networking assumptions =====
 +We assume that the compute node has the following setup:
 +   * It has 2 network interfaces connected to two different networks: **management network**, **Data network**
 +   * **Management network** is: ''192.168.60.0/24''
 +   * **Data network** is: 192.168.61.0/24
 +   * The node is named: ''compute.cloud.pd.infn.it'' (''192.168.60.43'')
 +   * In this guide the controller's VIP on the management network is needed: ''192.168.60.40''
 +   * In this guide the MySQL cluster's VIP on the management network is needed: ''192.168.60.10''
 +   * In this guide the controller's public IP is needed: ''90.147.77.40''
 +===== Install software =====
 +Install Havana repo:
 +<code bash>
 +yum -y install http://rdo.fedorapeople.org/openstack-havana/rdo-release-havana.rpm
 +</code>
 +When the support to Havana is decomissioned, the repo changes. Then do the following:
 +<code bash>
 +yum -y install https://repos.fedorapeople.org/repos/openstack/EOL/openstack-havana/rdo-release-havana-9.noarch.rpm
 +sed -i 's+openstack/+openstack/EOL/+' /etc/yum.repos.d/rdo-release.repo
 +</code>
 +Install Nova and Neutron's packages, and update ''iproute'' to support network namespaces:
 +<code bash>
 +yum -y install openstack-nova-compute openstack-utils openstack-neutron-openvswitch sysfsutils
 +yum -y update iproute
 +</code>
 +
 +
 +===== Preliminary networking setup =====
 +<code bash>
 +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
 +service network restart
 +</code>
 +===== Configure Nova =====
 +**nova.conf**
 +<code bash>
 +openstack-config --set /etc/nova/nova.conf database connection "mysql://nova:<NOVA_DB_PWD>@192.168.60.10/nova"
 +openstack-config --set /etc/nova/nova.conf DEFAULT auth_strategy keystone
 +openstack-config --set /etc/nova/nova.conf keystone_authtoken auth_host 192.168.60.40
 +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 192.168.60.41:5672,192.168.60.44:5672
 +openstack-config --set /etc/nova/nova.conf DEFAULT live_migration_flag VIR_MIGRATE_UNDEFINE_SOURCE,VIR_MIGRATE_PEER2PEER,VIR_MIGRATE_LIVE
 +
 +# Change the following IP with the actual IP of the current compute node on the management network
 +openstack-config --set /etc/nova/nova.conf DEFAULT my_ip 192.168.60.43
 +openstack-config --set /etc/nova/nova.conf DEFAULT vnc_enabled True
 +# vncserver_listen MUST be 0.0.0.0 otherwise the live migration won't work correctly
 +# (http://docs.openstack.org/havana/config-reference/content/configuring-openstack-compute-basics.html#setting-flags-in-nova-conf-file)
 +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
 +
 +# Change the following IP with the actual IP of the current compute node on the management network
 +openstack-config --set /etc/nova/nova.conf DEFAULT vncserver_proxyclient_address 192.168.60.43
 +openstack-config --set /etc/nova/nova.conf DEFAULT novncproxy_base_url http://cloud-areapd.pd.infn.it:6080/vnc_auto.html
 +openstack-config --set /etc/nova/nova.conf DEFAULT glance_host 192.168.60.40
 +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://192.168.60.40:9696
 +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://192.168.60.40:35357/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
 +# the following 3 lines enable admin's password inject
 +openstack-config --set /etc/nova/nova.conf DEFAULT libvirt_inject_password true
 +openstack-config --set /etc/nova/nova.conf DEFAULT libvirt_inject_key true
 +openstack-config --set /etc/nova/nova.conf DEFAULT libvirt_inject_partition -1
 +openstack-config --set /etc/nova/nova.conf DEFAULT neutron_metadata_proxy_shared_secret METADATA_PASS
 +openstack-config --set /etc/nova/nova.conf DEFAULT rabbit_ha_queues True
 +openstack-config --set /etc/nova/nova.conf DEFAULT cpu_allocation_ratio 4.0
 +
 +
 +# this is a temporary workaround untill we understand a problem of cpu not compatible when live-migrating VMs
 +openstack-config --set /etc/nova/nova.conf DEFAULT libvirt_cpu_mode custom
 +openstack-config --set /etc/nova/nova.conf DEFAULT libvirt_cpu_model kvm64
 +
 +</code>
 +**api-paste.ini**
 +<code bash>
 +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 192.168.60.40
 +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
 +
 +</code>
 +===== Configure LibVirt to support Live Migration =====
 +Turn OFF the ''libvirtd'' daemon :
 +<code bash>
 +service libvirtd stop
 +</code>
 +Execute:
 +<code bash>
 +cat << EOF >> /etc/libvirt/libvirtd.conf
 +listen_tls = 0
 +listen_tcp = 1
 +auth_tcp = "none"
 +EOF
 +</code>
 +and
 +<code bash>
 +cat << EOF >> /etc/sysconfig/libvirtd
 +LIBVIRTD_ARGS="--listen"
 +EOF
 +</code>
 +Modify ''qemu.conf'':
 +<code bash>
 +cat << EOF >> /etc/libvirt/qemu.conf 
 +user="nova"
 +group="nova"
 +dynamic_ownership = 0
 +EOF
 +</code>
 +===== Configure Neutron's agents =====
 +As in the compute node the Neutron's L2 agent is running, some Neutron's configuration files need to be customized.
 +
 +**neutron.conf**
 +<code bash>
 +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 192.168.60.41:5672,192.168.60.44:5672
 +openstack-config --set /etc/neutron/neutron.conf keystone_authtoken auth_host 192.168.60.40
 +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://192.168.60.40:35357/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:<NEUTRON_DB_PWD>@192.168.60.10/neutron"
 +openstack-config --set /etc/neutron/neutron.conf DEFAULT dhcp_agents_per_network 2
 +openstack-config --set /etc/neutron/neutron.conf DEFAULT dhcp_lease_duration 86400
 +openstack-config --set /etc/neutron/neutron.conf DEFAULT rabbit_ha_queues True
 +openstack-config --set /etc/neutron/neutron.conf DEFAULT agent_down_time 75 
 +openstack-config --set /etc/neutron/neutron.conf agent report_interval 30 
 +</code>
 +**ovs_neutron_plugin.ini**
 +<code bash>
 +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
 +
 +# Change the following IP with the actual current compute node's IP on the data network
 +openstack-config --set /etc/neutron/plugins/openvswitch/ovs_neutron_plugin.ini ovs local_ip 192.168.61.43
 +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
 +</code>
 +(Neutron L2 agent's) **api-paste.ini**
 +<code bash>
 +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 192.168.60.40
 +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
 +</code>
 +===== Bridge creation and start of the services =====
 +Open vSwitch start and bridge creation
 +<code bash>
 +service openvswitch start 
 +chkconfig openvswitch on
 +ovs-vsctl add-br br-int
 +</code>
 +L2 Agent start:
 +<code bash>
 +service neutron-openvswitch-agent start
 +chkconfig neutron-openvswitch-agent on
 +chkconfig neutron-ovs-cleanup on
 +</code>
 +Start Services:
 +<code bash>
 +service libvirtd start
 +service messagebus start
 +service openstack-nova-compute start
 +chkconfig libvirtd on
 +chkconfig messagebus on
 +chkconfig openstack-nova-compute on
 +</code>
 +===== Check all =====
 +When done, log into the controller node, or wherever you've installed the Openstack CLI and copied the ''keystone_admin.sh'' into (which was created in the [[http://wiki.infn.it/progetti/cloud-areapd/keystone-glance_high_availability/openstack_ha/controller_node|controller node]] installation procedure). Execute the commands:
 +<code bash>
 +[root@controller-01 ~]# neutron agent-list
 ++--------------------------------------+--------------------+-----------------------------+-------+----------------+
 +| id                                   | agent_type         | host                        | alive | admin_state_up |
 ++--------------------------------------+--------------------+-----------------------------+-------+----------------+
 +| 188fe879-be8a-4390-b766-04e188e35c3c | L3 agent           | network-02.cloud.pd.infn.it | :-)   | True           |
 +| 3c460fc1-c111-4be5-a37b-88aa7ffd265a | Open vSwitch agent | compute.cloud.pd.infn.it    | :-)   | True           |
 +| 42647a60-dbd0-4a85-942d-8fdbb0e2ae24 | Open vSwitch agent | network-01.cloud.pd.infn.it | :-)   | True           |
 +| cf6f7ec2-8700-498b-b62d-49d8b5616682 | DHCP agent         | network-02.cloud.pd.infn.it | :-)   | True           |
 +| dc249956-e81d-465c-b51f-cff0e1e04f05 | DHCP agent         | network-01.cloud.pd.infn.it | :-)   | True           |
 +| e196a6a2-8a3a-4bfe-b048-b50bee14761c | Open vSwitch agent | network-02.cloud.pd.infn.it | :-)   | True           |
 +| eb902101-8a16-43b5-87f8-b058530407f6 | L3 agent           | network-01.cloud.pd.infn.it | :-)   | True           |
 ++--------------------------------------+--------------------+-----------------------------+-------+----------------+
 +
 +[root@controller-01 ~]# nova service-list
 ++------------------+--------------------------------+----------+---------+-------+----------------------------+-----------------+
 +| Binary           | Host                           | Zone     | Status  | State | Updated_at                 | Disabled Reason |
 ++------------------+--------------------------------+----------+---------+-------+----------------------------+-----------------+
 +| nova-scheduler   | controller-01.cloud.pd.infn.it | internal | enabled | up    | 2014-03-22T10:10:31.000000 | -               |
 +| nova-cert        | controller-01.cloud.pd.infn.it | internal | enabled | up    | 2014-03-22T10:10:29.000000 | -               |
 +| nova-consoleauth | controller-01.cloud.pd.infn.it | internal | enabled | up    | 2014-03-22T10:10:30.000000 | -               |
 +| nova-conductor   | controller-01.cloud.pd.infn.it | internal | enabled | up    | 2014-03-22T10:10:31.000000 | -               |
 +| nova-compute     | compute.cloud.pd.infn.it       | nova     | enabled | up    | 2014-03-22T10:10:30.000000 | -               |
 +| nova-consoleauth | controller-02.cloud.pd.infn.it | internal | enabled | up    | 2014-03-22T10:10:32.000000 | -               |
 +| nova-conductor   | controller-02.cloud.pd.infn.it | internal | enabled | up    | 2014-03-22T10:10:33.000000 | -               |
 +| nova-cert        | controller-02.cloud.pd.infn.it | internal | enabled | up    | 2014-03-22T10:10:32.000000 | -               |
 +| nova-scheduler   | controller-02.cloud.pd.infn.it | internal | enabled | up    | 2014-03-22T10:10:34.000000 | -               |
 ++------------------+--------------------------------+----------+---------+-------+----------------------------+-----------------+
 +</code>
 +
 +===== Add SSH passwordless access from Compute node to virtual instances =====
 +This is needed to allow nova to resize virtual instances. Execute the following commands:
 +<code bash>
 +usermod -s /bin/bash nova
 +mkdir -p -m 700 ~nova/.ssh
 +chown nova.nova ~nova/.ssh
 +cd ~nova/.ssh
 +scp controller-01:/var/lib/nova/.ssh/* .
 +chown nova.nova * 
 +</code>
 +
 +===== Optional: Configure Nova Compute for SSL =====
 +<code bash>
 +openstack-config --set /etc/nova/nova.conf keystone_authtoken auth_host cloud-areapd.pd.infn.it
 +openstack-config --set /etc/nova/nova.conf keystone_authtoken auth_protocol https
 +openstack-config --set /etc/nova/nova.conf keystone_authtoken cafile /etc/grid-security/certificates/INFN-CA-2006.pem
 +openstack-config --set /etc/nova/nova.conf DEFAULT neutron_ca_certificates_file /etc/grid-security/certificates/INFN-CA-2006.pem
 +openstack-config --set /etc/nova/nova.conf DEFAULT cinder_ca_certificates_file /etc/grid-security/certificates/INFN-CA-2006.pem
 +openstack-config --set /etc/nova/nova.conf DEFAULT neutron_admin_auth_url https://cloud-areapd.pd.infn.it:35357/v2.0
 +openstack-config --set /etc/nova/nova.conf DEFAULT novncproxy_base_url https://cloud-areapd.pd.infn.it:6080/vnc_auto.html
 +
 +openstack-config --set /etc/neutron/neutron.conf keystone_authtoken auth_host cloud-areapd.pd.infn.it
 +openstack-config --set /etc/neutron/neutron.conf keystone_authtoken auth_url https://cloud-areapd.pd.infn.it:35357/v2.0
 +openstack-config --set /etc/neutron/neutron.conf keystone_authtoken auth_protocol https
 +openstack-config --set /etc/neutron/neutron.conf DEFAULT ssl_ca_file /etc/grid-security/certificates/INFN-CA-2006.pem
 +openstack-config --set /etc/neutron/api-paste.ini filter:authtoken auth_host cloud-areapd.pd.infn.it
 +
 +openstack-config --set /etc/nova/api-paste.ini filter:authtoken auth_host cloud-areapd.pd.infn.it
 +openstack-config --set /etc/nova/api-paste.ini filter:authtoken auth_protocol https
 +
 +
 +openstack-config --set /etc/nova/nova.conf DEFAULT glance_host cloud-areapd.pd.infn.it
 +openstack-config --set /etc/nova/nova.conf DEFAULT glance_protocol https
 +openstack-config --set /etc/nova/nova.conf DEFAULT glance_api_servers https://cloud-areapd.pd.infn.it:9292
 +openstack-config --set /etc/nova/nova.conf DEFAULT ssl_ca_file /etc/grid-security/certificates/INFN-CA-2006.pem
 +#openstack-config --set /etc/nova/nova.conf ssl ca_file /etc/grid-security/certificates/INFN-CA-2006.pem
 +openstack-config --set /etc/nova/nova.conf DEFAULT glance_api_insecure true
 +
 +openstack-config --set /etc/nova/nova.conf DEFAULT neutron_url https://cloud-areapd.pd.infn.it:9696
 +
 +</code>
 +Restart L2 agent and Nova Compute
 +<code bash>
 +service openstack-nova-compute restart
 +service neutron-openvswitch-agent restart
 +
 +</code>
 +=== Fix metadata agent ===
 +To address this [[https://bugs.launchpad.net/neutron/+bug/1263872|bug]], apply this [[https://review.openstack.org/#/c/79658/|patch]], or follow the instructions below:
 +<code bash>
 +curl -o agent.py https://raw.githubusercontent.com/CloudPadovana/SSL_Patches/master/agent.py
 +mv /usr/lib/python2.6/site-packages/neutron/agent/metadata/agent.py /usr/lib/python2.6/site-packages/neutron/agent/metadata/agent.py.bak
 +cp agent.py /usr/lib/python2.6/site-packages/neutron/agent/metadata/agent.py
 +
 +service openstack-nova-compute restart
 +service neutron-openvswitch-agent restart
 +
 +</code>
 +
 +=== ===
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