gilangvperdana

General

If you need an external SAN (TrueNAS) for storage backend on Cinder Openstack, you can follow this guidance. Tested on me on Openstack Kolla-ansible Caracal Ubuntu 22.04 LTS.

Pre-requisites

• Openstack Caracal with Cinder ISCSI Backend Enabled
• TrueNAS
• TrueNAS Cinder Driver (https://github.com/iXsystems/cinder)
• Makesure your TrueNAS endpoint reachable from Management Interface all Openstack Nodes

Create Dataset on Truenas

gilangvperdana

General

If you want to add routing to Private Network like Pritunl Server, you can follow this step for OpenVPN CLI

Edit server.conf

Assume 192.168.10.0/24 are network we want to reach from OpenVPN Client

nano /etc/openvpn/server.conf

push route "192.168.10.0 255.255.255.0"

gilangvperdana

General

I have a TrueNAS node & i want to integrate it with Cinder. How to? here we go.

Pre-requirement

• Openstack Cluster with Cinder Enabled (i use Kolla Ansible for Deployer)
• TrueNAS with Pool & Dataset allocation

Enable Cinder with ISCSI Backend

nano /etc/kolla/globals.yaml

gilangvperdana

ceph health detail
ceph -s

ceph tell osd.* config get osd_max_backfills
ceph tell osd.* config get osd_max_backfills 2

ceph tell osd.* config get osd_recovery_max_active
ceph tell osd.* config set osd_recovery_max_active 4

ceph pg deep-scrub $numberpg

gilangvperdana

Installation with Cephadm

apt update -y && apt-get full-upgrade -y
apt install cephadm

 cephadm add-repo --release quincy
 cephadm install
 cephadm install  ceph-common

gilangvperdana

General

Hello world, in this topic actually I'm making a logging visualization in grafana for GeoIP purposes. As we know, GeoIP cannot use Prometheus, we have to use metrics in the form of raw logs, which is called logging. Because I don't have a lot of resources for running the ELK Stack, in the end I just ran logging with Promtail + Loki. Follow this technical for installation and integration of Promtail & Loki.

I will continue from this article to visualize it with Promtail + Loki.

Change nginx.conf

	log_format json_analytics escape=json '{'
						'"msec": "$msec", ' # request unixtime in seconds with a milliseconds resolution
						'"connection": "$connection", ' # connection serial number

gilangvperdana

General

Have you ever wanted to change SSH authentication on your Windows server with a public key and it failed after setting it? let's follow this step

Create authorized_keys

cd C:\Users\Administrator\.ssh
ssh-keygen
type id_rsa.pub > authorized_keys

gilangvperdana

General

I just want to deploy an Openstack Caracal Version (you can follow the update of Openstack Release on here) on my Ubuntu Jammy as LAB. I do on VirtualBox. You can see my previous article here, i just deploy Openstack Xena on Ubuntu Focal in Cloud/VM.

Goals

• I want to deploy single node with all role of Openstack (Management & Compute) Caracal on branch Master on top of Ubuntu Jammy (22.04LTS) on VirtualBox
• I want to access with FQDN os.test.link for External & osint.test.link for Internal FQDN
• I want to use secondary Disk for VM Volumes (Cinder)
• I want to makesure all service call with TLS

gilangvperdana

General

If you want to test connection (port listen) to another server you can use netcat. On linux will be ncat command & on windows will be ncat command.

Linux

• Installation

apt install -y netcat

• Usage

gilangvperdana

General

Have you ever confused about virtual disk with same size? then you can't choose who the right one? you can check with :

• SCSI ID
• UUID

Check with UUID

• Windows

wmic diskdrive where index=0 get serialnumber