Muhamad Ridwan muhamad-ridwant-tech

🎯

Focusing

I has expertise in the information technology industry with more than 5 years of work experience, specifically as a system engineer.

muhamad-ridwant-tech / prometheus.yml

Created January 27, 2026 07:00

Prometheus config for Blacbox-Exporter

	scrape_configs:
	- job_name: 'blackbox' ## Backbox-Exporter Config
	metrics_path: /probe
	params:
	module: [http_2xx] # Module defined in blackbox.yml
	static_configs:
	- targets:
	- https://i-3.co.id/ # Website 01
	- https://fake-json-api.mock.beeceptor.com/users # Function 01
	- https://fake-json-api.mock.beeceptor.com/companies # Function 02

muhamad-ridwant-tech / blackbox.yml

Created January 27, 2026 05:55

blackbox.yml with private CA File ssl / self signed ssl

muhamad-ridwant-tech / blackbox.service

Last active January 27, 2026 06:51

Blackbox-Exporter systemd service file ( /etc/systemd/system/blackbox.service )

	[Unit]
	Description=Blackbox-Exporter
	Wants=network-online.target
	After=network-online.target

	[Service]
	Type=simple
	ExecStart=/usr/local/bin/blackbox_exporter \
	--config.file /etc/blacbkox-exporter/blackbox.yml
	Restart=on-failure

muhamad-ridwant-tech / backup-script.sh

Created December 7, 2025 12:59

	#!/bin/bash
	DAY="$(date +%Y_%m_%d)"
	BACKUP="/home/$USER/DIRECTORY/$DAY-backup-ServiceAA.tar.gz"
	tar -csvpzf $BACKUP /home/$USER/ServiceAA

muhamad-ridwant-tech / ops-cloud

Created September 17, 2025 06:54

reset root password & allow user root ssh

	#cloud-config
	chpasswd:
	list: \|
	root:ridwan
	expire: false

	ssh_pwauth: true

	runcmd:
	- sed -i 's/^#\?PermitRootLogin.*/PermitRootLogin yes/' /etc/ssh/sshd_config

muhamad-ridwant-tech / HAProxy.cfg - LXD Dashboard

Created September 2, 2025 09:45

HAProxy Config for Microcloud LXD Dashboard

muhamad-ridwant-tech / microcloud-preseed.bash

Last active August 14, 2025 14:23

RUN Preseed command to All Node Secara bersama

	## SSH Copy ID
	[ridwan@WarMachine]$
	$ for i in {01,02,03}; do ssh-copy-id root@MicroCloud-${i};done

	# SCP File preseed.yml
	$ for i in {01,02,03}; do scp preseed.yaml root@MicroCloud-${i}:/root/; done

	## RUN Preseed command to All Node Secara bersama
	$ for i in {01,02,03}; do ssh root@MicroCloud-${i} "hostname && \
	cat preseed.yaml \| microcloud preseed > initialize-output.txt"& done

muhamad-ridwant-tech / remove-microcloud.sh

Last active August 6, 2025 12:10

how clean remove a microcloud node

-### Remove Member from Cluster
-$ sudo microceph.ceph mon remove <name>
-$ sudo microcloud remove <node> --force
-#$ # Before removing the cluster member, ensure that there are no LXD instances, storage volumes, or MicroCeph OSDs located on it.
-## Ref : https://documentation.ubuntu.com/microcloud/stable/microcloud/how-to/member_remove/
-### Stop services on Node
-$ sudo snap stop lxd.daemon
-$ sudo snap stop microcloud.daemon

muhamad-ridwant-tech / preseed.yml

Last active August 22, 2025 15:24

MicroCloud Preseed yaml file for automation initialize Non-interactive configuration

	initiator_address: 192.168.100.101 ## Alamat node initiator (Isolated network)
	session_passphrase: H1dUPJkvv!1!1 ## Passphrase to join microcloud (Pastikan dibaca dengan lantang!!)
	session_timeout: 500 ## Timeout promt dalam satuan detik
	systems:
	- name: MicroCloud-01 ## Hostname (Pastikan sesuai $hostnamectl)
	address: 192.168.100.101 ## Addr Isolated network
	ovn_uplink_interface: br0 ## interface Internet Network (Pastikan sesuai interface naming)
	storage:
	ceph: ## list disk yang akan digunakan oleh Ceph OSD
	- path: /dev/sdb ## Pastikan alamat path sesuai dengan ($lsblk)

muhamad-ridwant-tech / nmcli.bash

Created July 29, 2025 06:00

How to use "nmcli" for network config

	## list all network connections / ip a
	$ sudo nmcli connection show

	## Set static network
	$ sudo nmcli con mod "Network Name" \
	ipv4.method manual \
	ipv4.addresses 192.168.15.14/24 \
	ipv4.gateway 192.168.15.1 \
	ipv4.dns 8.8.8.8