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PIP 101

• Reinstall old version of jinja2 (for ansible templating bug on python3.9) pip3 install --force-reinstall -v "jinja2==3.0.3"

• Upgrade all packages

pip3 freeze > requirements.txt
pip3 install -r requirements.txt --upgrade

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IPFS 101

#https://medium.com/@s_van_laar/deploy-a-private-ipfs-network-on-ubuntu-in-5-steps-5aad95f7261b
#https://labs.eleks.com/2019/03/ipfs-network-data-replication.html
#https://www.joranhonig.nl/stealing-info-using-ipfs-fuse/

By default, IPFS and IPFS-Cluster use the following ports:

IPFS
4001 – Communication with other nodes

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Python Logging 101

• With colorlog method

import logging
LOG_LEVEL = logging.DEBUG
LOGFORMAT = "  %(log_color)s%(levelname)-8s%(reset)s | %(log_color)s%(message)s%(reset)s"
from colorlog import ColoredFormatter
logging.root.setLevel(LOG_LEVEL)

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NEOVIM 101

Delete lines containgin word

:g/word/norm dd

Replace a word globally

:%s#bla#blou#g

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#https://www.sitepoint.com/debugging-mobile-websites-firefox/

sitepoint.com Debugging Mobile Websites with Firefox — SitePoint Jérémy Heleine 9-11 minutes

All the major browsers now provide tools to help test and debug websites on mobile devices. In this article I will look specifically at Firefox’s offerings and then compare them to Chrome and Internet Explorer. Testing with Firefox Responsive Mode

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• Download blob files (get url ending with .m3u8 and also get CDN token for authentication)

ffmpeg -i 'https://xxxx.xxxx.xxx/master.m3u8?this_named_token=xxxxx' -vcodec copy -c copy -crf 50 file.mp4

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Keepalived 101

• Maxscale HA => https://rasyiqul.wordpress.com/2019/03/08/setup-maxscale-ha-using-keepalived-and-maxctrl/

primaryhost

# vi /etc/keepalived/keepalived.conf

vrrp_script chk_maxscale {
    script "pidof maxscale"

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SQLITE 101

• Connect to specific database: sqlite3 this.db

• Liste databases: .databases

• Reset admin (create new user and recover password and salt to overwrite admin ones)

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SPOTIFY 101

• Get all tracks of a playlist (if liked songs, create new playlist, go to liked songs, CTRL+A, drag and drop to new playlist) curl -X "GET" "https://api.spotify.com/v1/me/tracks" -H "Accept: application/json" -H "Content-Type: application/json" -H "Authorization: Bearer xxx" > /tmp/out.json
• Parse /tmp/out.json to get all songs links ``

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TTRSS 101

• Pull code git clone https://git.tt-rss.org/fox/ttrss-docker-compose.git ttrss-docker;cd ttrss-docker

• Copy .env and modify

# Copy this file to .env before building the container.
# Put any local modifications here.