Mohammad Shafiee mshafiee

Docker compose as a systemd unit

Create file /etc/systemd/system/myservice.service. SystemD calling binaries using an absolute path. In my case is prefixed by /usr/local/bin, you should use paths specific for your environment.

[Unit]
Description=%i service with docker compose
Requires=docker.service
After=docker.service

	global
	localpeer haproxy-1

	defaults
	timeout connect 5s
	timeout client 1m
	timeout server 1m


	peers haproxy-peers

	#!/bin/bash
	##############################################################################
	# SHORTCUTS and HISTORY
	##############################################################################

	CTRL+A # move to beginning of line
	CTRL+B # moves backward one character
	CTRL+C # halts the current command
	CTRL+D # deletes one character backward or logs out of current session, similar to exit
	CTRL+E # moves to end of line

	#!/bin/sh

	#Check the Drive Space Used by Cached Files
	du -sh /var/cache/apt/archives

	#Clean all the log file
	#for logs in `find /var/log -type f`; do > $logs; done

	logs=`find /var/log -type f`
	for i in $logs

	# Ask for the user password
	# Script only works if sudo caches the password for a few minutes
	sudo true

	# Install kernel extra's to enable docker aufs support
	# sudo apt-get -y install linux-image-extra-$(uname -r)

	# Add Docker PPA and install latest version
	# sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 36A1D7869245C8950F966E92D8576A8BA88D21E9
	# sudo sh -c "echo deb https://get.docker.io/ubuntu docker main > /etc/apt/sources.list.d/docker.list"

	#!/bin/bash
	JDC_ORG_UNIT=""
	JDC_ORG_ENV=""
	JDC_DOMAIN_NAME=mydomain.com
	JDC_AD_DC1_IP=192.168.240.11
	JDC_AD_DC2_IP=192.168.240.12
	JDC_AD_DC1_NAME=dc1-inf-ad-ds1.mydomain.com
	JDC_AD_DC2_NAME=dc1-inf-ad-ds2.mydomain.com
	JDC_HOST_NAME=$(hostname \| awk -F'.' '{print $1}').$JDC_DOMAIN_NAME
	JDC_GROUP_PREFIX="os"

	sudo snap install yq

	sudo cp /etc/netplan/00-installer-config.yaml /etc/netplan/00-installer-config.yaml.bk_`date +%Y%m%d%H%M`

	cat /etc/netplan/00-installer-config.yaml \| yq -e '.network.ethernets.ens160.nameservers.addresses[0]="192.168.10.11" \| .network.ethernets.ens160.nameservers.addresses[1]="192.168.10.12"' \| sudo tee /etc/netplan/00-installer-config.yaml

	sudo netplan apply

	# vi /etc/systemd/system/docker_limit.slice

	[Unit]
	Description=Slice that limits docker resources
	Before=slices.target

	[Slice]
	CPUAccounting=true
	CPUQuota=700%
	# Memory Management

	============================
	Create XFS Volume
	============================
	sudo apt-get install xfsprogs xfsdump
	sudo wipefs -a /dev/sdb

	sudo fdisk /dev/sdb # g -> n -> p -> 1 -> w
	sudo pvcreate /dev/sdb1
	sudo vgcreate data-vg /dev/sdb1
	sudo lvcreate -l 100%FREE -n data-lv data-vg

	Dump all secrets from all namespaces and store them in seprate yaml file:

	kubectl get secret -A -o custom-columns=:.metadata.name,:.metadata.namespace --no-headers \| \
	xargs -n 2 sh -c '(kubectl get secret -n $3 -o yaml $2; echo "---") >> $3-$2.yaml' -- {}


	.