Configure vm.max_map_count for specific workload like elasticsearch
It's spefically set for staging nodes for now. It needs to be set to a minimal of 262144 as a tryout elasticsearch will run there.
That won't impact much the production nodes even if it's set there.
octo-diff
$SWH_PUPPET_ENVIRONMENT_HOME/bin/octocatalog-diff rancher-node-staging-rke2-worker1.internal.staging.swh.network
...
*** Running octocatalog-diff on host rancher-node-staging-rke2-worker1.internal.staging.swh.network
I, [2023-03-01T11:41:30.217470 #1834099] INFO -- : Catalogs compiled for rancher-node-staging-rke2-worker1.internal.staging.swh.network
I, [2023-03-01T11:41:30.496878 #1834099] INFO -- : Diffs computed for rancher-node-staging-rke2-worker1.internal.staging.swh.network
diff origin/production/rancher-node-staging-rke2-worker1.internal.staging.swh.network current/rancher-node-staging-rke2-worker1.internal.staging.swh.network
*******************************************
+ Exec[enforce-sysctl-value-vm.max_map_count] =>
parameters =>
"command": "/sbin/sysctl -w vm.max_map_count=262144",
"unless": "/usr/bin/test \"$(/sbin/sysctl -n vm.max_map_count)\" = 262144"
*******************************************
+ Exec[sysctl-vm.max_map_count] =>
parameters =>
"command": "sysctl -p /etc/sysctl.d/vm.max_map_count.conf",
"path": [
"/usr/sbin",
"/sbin",
"/usr/bin",
"/bin"
],
"refreshonly": true
*******************************************
+ Exec[update-sysctl.conf-vm.max_map_count] =>
parameters =>
"command": "sed -i -e 's#^vm.max_map_count *=.*#vm.max_map_count = 262144#' ...
"onlyif": "grep -E '^vm.max_map_count *=' /etc/sysctl.conf",
"path": [
"/usr/sbin",
"/sbin",
"/usr/bin",
"/bin"
],
"refreshonly": true
*******************************************
+ File[/etc/sysctl.d/99-sysctl.conf] =>
parameters =>
"ensure": "link",
"group": "root",
"owner": "root",
"target": "../sysctl.conf"
*******************************************
+ File[/etc/sysctl.d/vm.max_map_count.conf] =>
parameters =>
"content": "vm.max_map_count = 262144\n",
"group": "root",
"mode": "0644",
"notify": [
"Exec[sysctl-vm.max_map_count]",
"Exec[update-sysctl.conf-vm.max_map_count]"
],
"owner": "root"
*******************************************
+ File[/etc/sysctl.d] =>
parameters =>
"ensure": "directory",
"group": "root",
"mode": "0755",
"owner": "root",
"purge": false,
"recurse": false
*******************************************
+ Sysctl[vm.max_map_count] =>
parameters =>
"enforce": true,
"suffix": ".conf",
"value": "262144"
*******************************************
*** End octocatalog-diff on rancher-node-staging-rke2-worker1.internal.staging.swh.network