liwsakilive

fs.inotify.max_user_watches = 36864
net.ipv4.conf.all.rp_filter = 0
net.ipv4.conf.default.rp_filter = 0
net.netfilter.nf_conntrack_max = 10000000
vm.dirty_background_ratio = 5
vm.dirty_ratio = 10
vm.swappiness = 5
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
net.bridge.bridge-nf-call-arptables = 1

liwsakilive

apiVersion: apps/v1
kind: Deployment
metadata:
  name: prometheus-deployment
  namespace: prom
  labels:
    app: prometheus-server
spec:
  replicas: 1
  selector:

liwsakilive

###
# Proxmox or other server kernel params cheap tune and secure.
# Try it if you have heavy load on server - network or memory / disk.
# No harm assumed but keep your eyes open.
#
# @updated: 2020-02-06 - more params used, adjust some params values, more comments on params
#

### NETWORK ###

liwsakilive

# Generated by iptables-save v1.8.4 on Wed Mar  9 00:06:04 2022
*raw
:PREROUTING ACCEPT [653:47787]
:OUTPUT ACCEPT [691:96020]
-A PREROUTING -p tcp -m tcp -m multiport --dports 22,80,443,8443,20191,20192,20193,19999 -j ACCEPT
-A PREROUTING -p tcp -m tcp --tcp-flags FIN,SYN,RST,ACK SYN -j CT --notrack
COMMIT
# Completed on Wed Mar  9 00:06:04 2022
# Generated by iptables-save v1.8.4 on Wed Mar  9 00:06:04 2022
*nat

liwsakilive

kernel.printk = 4 4 1 7 
kernel.panic = 10 
kernel.sysrq = 0 
kernel.shmmax = 4294967296 
kernel.shmall = 4194304 
kernel.core_uses_pid = 1 
kernel.msgmnb = 65536 
kernel.msgmax = 65536 
vm.swappiness = 20 
vm.dirty_ratio = 80 

liwsakilive

#Convert vmware image to raw format image file
qemu-img convert -f vmdk -p -O raw machine.name.vmdk /opt/machine-name.img

#DD image into logical volume
dd if=machine-name.img of=/dev/vg_vmstore/lv_001-prod-machine-name-win001

#Use create virtual machine with existing disk

liwsakilive

---
# You can use this file to override _any_ variable throughout Kolla.
# Additional options can be found in the
# 'kolla-ansible/ansible/group_vars/all.yml' file. Default value of all the
# commented parameters are shown here, To override the default value uncomment
# the parameter and change its value.

ansible_python_interpreter: /usr/bin/python3

###############

liwsakilive

wget http://mirror.centos.org/altarch/7/extras/aarch64/Packages/centos-release-ceph-jewel-1.0-1.el7.centos.noarch.rpm
wget http://mirror.centos.org/centos/7/extras/x86_64/Packages/centos-release-storage-common-2-2.el7.centos.noarch.rpm
wget https://cbs.centos.org/kojifiles/packages/centos-release-openstack-pike/1/0.el7/x86_64/centos-release-openstack-pike-1-0.el7.x86_64.rpm
wget https://cbs.centos.org/kojifiles/packages/centos-release-qemu-ev/1.0/2.el7/noarch/centos-release-qemu-ev-1.0-2.el7.noarch.rpm
wget http://mirror.centos.org/centos/7/extras/x86_64/Packages/centos-release-virt-common-1-1.el7.centos.noarch.rpm

rpm -ivh centos-release-ceph-jewel-1.0-1.el7.centos.noarch.rpm
rpm -ivh centos-release-storage-common-2-2.el7.centos.noarch.rpm
rpm -ivh centos-release-qemu-ev-1.0-2.el7.noarch.rpm
rpm -ivh centos-release-virt-common-1-1.el7.centos.noarch.rpm

liwsakilive

Moved to git repository: https://github.com/denji/nginx-tuning

NGINX Tuning For Best Performance

For this configuration you can use web server you like, i decided, because i work mostly with it to use nginx.

Generally, properly configured nginx can handle up to 400K to 500K requests per second (clustered), most what i saw is 50K to 80K (non-clustered) requests per second and 30% CPU load, course, this was 2 x Intel Xeon with HyperThreading enabled, but it can work without problem on slower machines.

You must understand that this config is used in testing environment and not in production so you will need to find a way to implement most of those features best possible for your servers.

liwsakilive

# Kernel sysctl configuration file for Linux
# https://www.kernel.org/doc/Documentation/sysctl/
#
# Original by Michiel Klaver <https://klaver.it/linux/sysctl.conf>
# Modify by Kawin Viriyaprasopsook <kawin.vir@zercle.tech>
#
# The following is suitable for dedicated web server, mail, file server, KVM server etc.
# place file in /etc/sysctl.d/60-zercle.conf
# and run sysctl --system