Difference between revisions of "Agile testbed"
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ipmi-oem -h host.ipmi.nikhef.nl -u username -p password dell get-system-info service-tag | ipmi-oem -h host.ipmi.nikhef.nl -u username -p password dell get-system-info service-tag | ||
| − | + | Most machines all run [http://www.debian.org/releases/stable/ Debian squeeze] with [http://www.linux-kvm.org/page/Main_Page KVM] for virtualization, managed by [http://libvirt.org/ libvirt]. | |
| − | + | See [[NDPF_Node_Functions#P4CTB|the official list]] of machines for the most current view. | |
| − | + | == Accessing the machines == | |
| − | + | Access to the hardware is either by | |
| + | # ssh access from within the testbed or | ||
| + | # IPMI Serial-over-LAN | ||
| − | + | The only machine that can be reached from outside the testbed (but still only from within certain networks) is the head node. | |
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=== The head node === | === The head node === | ||
| − | + | The testbed lives on a LAN with no inbound connectivity. The management host '''bleek.nikhef.nl''' is the entry point to the entire testbed. It takes care of network address translation (NAT) of the 10.198.0.0/16 range used inside the testbed, resolving hostnames and handing out ip addresses (with dnsmasq), serving home directories, and serving VM installation details such as kickstart files (Red Hat/Fedora) and preseed configurations (Debian). | |
Access to bleek.nikhef.nl is restricted to users who have a home directory with their ssh pulic key in ~/.ssh/authorized_keys. | Access to bleek.nikhef.nl is restricted to users who have a home directory with their ssh pulic key in ~/.ssh/authorized_keys. | ||
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The user identities on bleek are managed in the [[NDPFDirectoryImplementation|Nikhef central LDAP directory]], as is customary on many of the testbed VMs. The home directories are located on bleek and NFS exported to those VMs that wish to use them (but not to the Virtual hosts, who don't need them). | The user identities on bleek are managed in the [[NDPFDirectoryImplementation|Nikhef central LDAP directory]], as is customary on many of the testbed VMs. The home directories are located on bleek and NFS exported to those VMs that wish to use them (but not to the Virtual hosts, who don't need them). | ||
| − | ==== Backup | + | == Services running in the testbed == |
| + | |||
| + | There is a number of services being maintained in the testbed, most of them running on '''bleek.nikhef.nl'''. | ||
| + | |||
| + | === Backup === | ||
The home directories and other precious data on bleek are backed up to Sara with the Tivoli Software Manager system. | The home directories and other precious data on bleek are backed up to Sara with the Tivoli Software Manager system. | ||
