https://wiki.infn.it/ 2026-05-09T02:23:02+00:00 https://wiki.infn.it/ https://wiki.infn.it/_media/wiki/logo.png text/html 2015-03-06T16:29:06+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.infn.it/progetti/cloud-areapd/operations/production_cloud/add_user_to_oz_cld-build?rev=1425659346&do=diff New user to OZ The cld-build.cloud.pd.infn.it is the machine to build images for VM. It is available for users too if they want to create their own images. If an user asks for an account, you need to log in the machine as root (ask to M.Sgaravatto the password) and to create the account adding the user to the ozusers group. And create a password to change at the first login text/html 2018-05-07T15:14:11+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.infn.it/progetti/cloud-areapd/operations/production_cloud/caos?rev=1525706051&do=diff CAOS The instances of CAOS are hosted on cld-caos and the dashboards are reachable on: * Cloud Area Padovana: <https://cld-caos.cloud.pd.infn.it> * Cloud Veneto: <https://cld-caos.cloud.pd.infn.it/CloudVeneto> * EGI Fed-Cloud: <https://cld-caos.cloud.pd.infn.it/EgiCloud> The links are reachable only from inside the Padova LAN. To connect from outside a SSH tunnel must be opened, e.g: text/html 2018-01-23T16:48:40+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.infn.it/progetti/cloud-areapd/operations/production_cloud/elastic_cluster?rev=1516726120&do=diff How to restart elastic cluster This guide explains how to restart an elastic cluster based on htcondor and elastiq services. Check the repository virtual machine The flow to restart an elastic cluster after the shut off has to follow these steps. The cloud administrator has to check if the VM text/html 2015-09-22T12:22:32+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.infn.it/progetti/cloud-areapd/operations/production_cloud/fix_resource_usage_errors?rev=1442924552&do=diff Fix resource usage errors There is an utility, implemented at CERN (<https://github.com/cernops/nova-quota-sync>), which is able to detect and fix errors in the resource usage. It has been installed on cld-ctrl-01 in /usr/local/bin/nova-quota-sync To just see the problem: [root@cld-ctrl-01 ~]# python /usr/local/bin/nova-quota-sync --no_sync +----------------------------------+----------------------------------+-----------+------------+------------------+----------+ | Project ID… text/html 2016-03-30T09:52:38+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.infn.it/progetti/cloud-areapd/operations/production_cloud/installation_and_configuration_of_ceilometer_on_kilo?rev=1459331558&do=diff Installation and configuration of Ceilometer on Kilo On each HAproxy server, add the following entry in /etc/haproxy/haproxy.cfg: listen ceilometer-api-public bind 192.168.60.40:8777 balance source option tcpka option tcplog server cld-ctrl-01.cloud.pd.infn.it 192.168.60.105:8777 check inter 2000 rise 2 fall 3 server cld-ctrl-02.cloud.pd.infn.it 192.168.60.106:8777 check inter 2000 rise 2 fall 3 text/html 2015-10-03T07:35:17+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.infn.it/progetti/cloud-areapd/operations/production_cloud/installazione_e_configurazione_ceilometer_su_icehouse?rev=1443857717&do=diff Installation and configuration of Ceilometer on IceHouse HAProxy configuration On each HAproxy server, add the following entry in /etc/haproxy/haproxy.cfg: listen ceilometer-api-public bind 192.168.60.40:8777 balance source option tcpka option tcplog server cld-ctrl-01.cloud.pd.infn.it 192.168.60.105:8777 check inter 2000 rise 2 fall 3 server cld-ctrl-02.cloud.pd.infn.it 192.168.60.106:8777 check inter 2000 rise 2 fall 3 text/html 2017-03-30T14:13:42+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.infn.it/progetti/cloud-areapd/operations/production_cloud/managing_mismatches_between_nova_and_libvirt?rev=1490883222&do=diff Managing mismatches between Nova and libvirt The Nagios sensor 'Nova Libvirt Mismatch' reports the (uuid, instance-id) mappings for VMs that appear in libvirt but not on Nova. Check the status of this VM in the nova database using the uuid: $ ssh root@mysql-cluster-01.cloud.pd.infn.it # mysql mysql> use nova_prod; mysql> select display_name,user_id,project_id,created_at,deleted_at from instances where uuid='a2d1589c-f40b-4701-b6d0-687055b8309d'; text/html 2018-02-07T16:02:45+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.infn.it/progetti/cloud-areapd/operations/production_cloud/migrate_a_vm_to_a_specific_hypervisor?rev=1518019365&do=diff Migrate a VM to a specific hypervisor If the VM was created using 'boot from volume', or if there is a shared file system among compute nodes, you may use live migration where you can specify the target compute nodes. Otherwise you can refer to the following instructions (taken from text/html 2015-03-27T05:10:57+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.infn.it/progetti/cloud-areapd/operations/production_cloud/new_certificate_installation_howto?rev=1427433057&do=diff New certificate installation howto Stesps to be done when a new service certificate has to be installed: On the 3 HAproxy nodes: concatenate the cert and key in a single file that must be called '/etc/grid-security/hostcertkey.pem' and must have the following ownership and protections: text/html 2015-04-22T13:49:18+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.infn.it/progetti/cloud-areapd/operations/production_cloud/remove_a_compute_node_howto?rev=1429710558&do=diff Remove a compute node howto Let's suppose that we want to remove, temporarily (e.g. for some maintenance operations) or forever (e.g. because it must be dismissed) a compute node (e.g. cld-nl-02.cloud.pd.infn.it) from the Cloud production service). Please take into account also the notes for the