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{| width="100%" align="center" style="text-align:left; " | |||
| style="align:left;" | [[Image:Nuvola apps important.svg|25px|Outdated]] | |||
| style="padding-left:5px;" | '''IMPORTANT:''' Coherence is now defunct and has been replaced by a much powerful server called [[Erratic]] | |||
|}</div> | |||
{{Inventory | {{Inventory | ||
|Name=Coherence | |Name=Coherence | ||
| Line 7: | Line 14: | ||
|Tool=No | |Tool=No | ||
}} | }} | ||
== Replacement == | |||
Replaced by [[Erratic]]. | |||
== What and where == | |||
* Runs Proxmox for KVM VMs and LXC containers | |||
* https://coherence.lan.nurd.space:8006/ | |||
== Specs == | == Specs == | ||
* Dell Optiplex 7010 donated by TechInc | * Dell Optiplex 7010 donated by TechInc | ||
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* 120GB SSD for root etc | * 120GB SSD for root etc | ||
* +- 25W power usage total (with one spinning disk) | * +- 25W power usage total (with one spinning disk) | ||
== Tips&Tricks == | == Tips&Tricks == | ||
Latest revision as of 20:28, 9 May 2022
|
IMPORTANT: Coherence is now defunct and has been replaced by a much powerful server called Erratic |
| Coherence | |
|---|---|
 | |
| Owner | Space |
| Status | Infra |
| Hostname | coherence |
| Tool | No |
| Tool category | |
Coherence_Optiplex.jpg {{{InventoryOwner}}}Property "Tool Owner" (as page type) with input value "{{{InventoryOwner}}}" contains invalid characters or is incomplete and therefore can cause unexpected results during a query or annotation process. {{{Location}}}Property "Tool Location" (as page type) with input value "{{{Location}}}" contains invalid characters or is incomplete and therefore can cause unexpected results during a query or annotation process.
Replacement
Replaced by Erratic.
What and where
- Runs Proxmox for KVM VMs and LXC containers
- https://coherence.lan.nurd.space:8006/
Specs
- Dell Optiplex 7010 donated by TechInc
- 4x 4GB RAM (all slots filled)
- Intel Core i5 3470 @ 3.2ghz
- 2 x 4TB Toshiba disks
- 120GB SSD for root etc
Old specs (this box broke)
- Asrock J4205-ITX
- 2 x 8GB DDR3 1866Mhz
- 2 x 4TB Toshiba disks
- 120GB SSD for root etc
- +- 25W power usage total (with one spinning disk)
Tips&Tricks
Find the container id of a running process
Since it is always an issue to find out to which LXC container some process belongs, a small helper script has been created which helps with finding this ID.
Example run:
root@coherence:~# find_pct_by_pid.sh 12088 105 root@coherence:~# find_pct_by_pid.sh 666 Error: No /proc entry found for 666 root@coherence:~# find_pct_by_pid.sh 1 Warning: 1 is not running inside an LXC container
Script:
#!/bin/bash
# Check if we are called correctly
if [[ ${#} -ne 1 ]]; then
echo "Usage: $(basename ${0}) <pid>"
exit 1
fi
PID=${1}
# Check if the process is actually running
if [[ ! -d "/proc/${PID}" ]]; then
echo "Error: No /proc entry found for ${PID}"
exit 1
fi
# Check if we are dealing with an LXC container
CPUSET="$(head -1 /proc/${PID}/cpuset)"
echo "${CPUSET}" | grep -q lxc
if [[ ${?} -ne 0 ]]; then
echo "Warning: ${PID} is not running inside an LXC container"
exit 0
fi
PCT_ID="$(echo ${CPUSET} | cut -d/ -f3)"
echo "${PCT_ID}"