Ivan Yelizariev yelizariev

Postgres

http://pgtune.leopard.in.ua/

Odoo

Workers

Docker - How to cleanup (unused) resources

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

delete volumes

// see: https://github.com/chadoe/docker-cleanup-volumes

docker volume rm $(docker volume ls -qf dangling=true)

docker volume ls -qf dangling=true | xargs -r docker volume rm

The general idea is to ask a group (let's call it target group) via bot and get answer. The group might be:

Support Team
IT Department of your company
etc.

TODO: text formatting is lost on resending. Use entities instead of text field

TODO: set debug level via Environment variables

Allows to create TODOs for a small group of users.

Tasks can have on of the following states:

TODO -- to be done
DONE -- done
CANCELED -- nothing was done and not going to be done
WAITING -- cannot be started and waits for something

Technical specification

Certificate issue in DNS manual mode

Done according to https://github.com/Neilpang/acme.sh/wiki/dns-manual-mode

Warning: DNS manual mode can not renew automatically. For renewal you need to repeat steps below each time. Certificate needs to be renewed within 90 days.

Install client

git clone https://github.com/Neilpang/acme.sh.git

	# https://help.ubuntu.com/community/BackupYourSystem/TAR

	# Archive
	tar -cvpzf backup.tar.gz --one-file-system /

	# Restore
	sudo tar -xvpzf /path/to/backup.tar.gz -C /media/whatever --numeric-owner

	# install dependencies
	sudo pip install polib
	sudo pip install google-cloud-translate==2.0.0

	# https://docs.transifex.com/client/installing-the-client
	sudo pip install transifex-client

	# prepare and export your google cloud credentials
	# See https://cloud.google.com/translate/docs/basic/setup-basic
	# and https://cloud.google.com/docs/authentication/getting-started

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

	unmapAll # Use Emacs-style bindings only.

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

	# Modifier Keys w/ Emacs Terminology:

	# `<c->` = ⌃ Control Key; i.e. `C-`.
	# `<a->` = ⌥ Meta Key (Alt/Option); i.e. `M-`.

	sudo apt install lolcat cowsay
	while true; do export PINGHOST=8.8.8.8 && RESULT=$(ping -q -n -c 4 $PINGHOST \| awk '/packet loss/ {if ($6 != "0%") print $6, "packet loss"}') && echo "Done:" && if [[ -z $RESULT ]]; then cowsay "No package lost!" \| lolcat --seed=45; else cowsay $RESULT \| lolcat --seed=17; fi; date; echo -n "sleeping... "; sleep 5; echo -n "pinging... "; done

	# based on https://serverfault.com/a/196847
	# It will keep only latest 12 files
	ls -1t /path/to/dir/* \| tail -n +13 \| xargs rm > /dev/null 2>&1