Testbed Update Plan
Planning the update of the middleware/development test bed
There is a number of tasks involved in bringing the testbed to where we like to be. We also need to agree on a timeframe in which we like to see these things accomplished.
inventory of current services
This section should list the current services we run and use on the testbeds. For each service, we should explain what we should like to do with it (keep, drop, change?).
Data plan for precious data
Precious means anything that took effort to put together, but nothing that lives in version control elsewhere. Think home directories, system configurations, pre-generated ssh host keys, X509 host certs, etc.
One idea is to put all of this on a box that is not involved in regular experimentation and messing about, and have backup arranged from this box to beerput. After this is arranged we begin to migrate precious data from all the other machines here, leaving the boxen in a state that we don't get sweaty palms over scratching and reinstalling them.
Hardware inventory
Perhaps this should be done first. Knowing what hardware we have is prerequisite to making sensible choices about what we try to run where.
| name | Serial No | type | chipset | #cores | mem | OS | disk | remarks |
|---|---|---|---|---|---|---|---|---|
| bleek | CQ9NK2J | PE1950 | Intel 5150 @2.66GHz | 4 | 8GB | CentOS4-64 | software raid1 2×500GB disks | High Availability, dual power supply |
| toom | DC8QG3J | PE1950 | Intel E5440 @2.83GHz | 8 | 16GB | CentOS5-64 | Hardware raid1 2×715GB disks | |
| kudde | CC8QG3J | PE1950 | Intel E5440 @2.83GHz | 8 | 16GB | CentOS5-64 | Hardware raid1 2×715GB disks | |
| span | FP1BL3J | P2950 | Intel E5440 @2.83GHz | 8 | 24GB | CentOS5-64 | Hardware raid10 on 4×470GB disks (950GB net) | DHCP,DNS,NFS,LDAP |
| melkbus | ||||||||
| odin | to be renamed | |||||||
| put | voormalig garitxako | |||||||
| autana | to be renamed | |||||||
| arauca | to be renamed | |||||||
| arrone | to be renamed | |||||||
| aulnes | to be renamed | |||||||
| ent | Mac Mini | Intel Core Duo @1.66GHz | 2 | 2GB | OS X 10.6 | SATA 80GB | OS X virtual machines using Parallels |
Network plan
All of the machines should be put in the P4CTB VLAN (vlan 2), which is covered by ACLs to prevent public access. This is a first line in defence against intrusions. In some cases we may like to run virtual machines in the open/experimental network (vlan 8); for that the trick is to create a second bridge with a tagged ethernet device in vlan 8: see /etc/sysconfig/network-scripts/ifcfg-eth0.8
VLAN=yes DEVICE=eth0.8 BOOTPROTO=static ONBOOT=yes TYPE=Ethernet IPV6INIT=no IPV4INIT=no
Then: ifup eth0.8 and
brctl addbr broe brctl addif broe eth0.8
Unfortunately, the IPV6INIT=no doesn't help, it gets an IPv6 address anyway. This bridge can then be used to add virtual network devices for machines that live in open/experimental.
LDAP migration
We're going to ditch our own directory service (it served us well, may it rest in peace) in favour of the central Nikhef service. This means changing user ids in some (all?) cases which should be done preferable in a single swell foop.
