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### Add trailing slash if needed

STR="/i/am/a/path"

length=${#STR}
last_char=${STR:length-1:1}

[[ $last_char != "/" ]] && STR="$STR/"; :

echo "$STR" # => /i/am/a/path/

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Setup

0. Create a new directory with these three files (requirements.txt, main.py, README.md)
1. python -m venv venv
2. source venv/bin/activate
3. pip install -r requirements.txt
4. python main.py
5. Update main() to run the example prompt chains

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#!/usr/bin/env bash

echo 'net.ipv4.ip_forward = 1' | sudo tee /etc/sysctl.d/20-tailscale.conf
echo 'net.ipv6.conf.all.forwarding = 1' | sudo tee -a /etc/sysctl.d/20-tailscale.conf
sudo sysctl -p /etc/sysctl.d/20-tailscale.conf

printf '#!/bin/sh\n\nethtool -K %s rx-udp-gro-forwarding on rx-gro-list off \n' "$(ip route show 0/0 | cut -f5 -d" ")" | sudo tee /etc/networkd-dispatcher/routable.d/50-tailscale
sudo chmod 755 /etc/networkd-dispatcher/routable.d/50-tailscale

sudo /etc/networkd-dispatcher/routable.d/50-tailscale

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This (and related gists) captures how i created my docker swarm architecture. This is intended mostly for my own notes incase i need to re-creeate anything later! As such expect some typos and possibly even an error...

Installation Step-by-Step

Each major task has its own gist, this is to help with maitainability long term.

1. Install Debian VM for each docker host
2. install Docker
3. Configure Docker Swarm
4. Install Portainer
5. Install KeepaliveD
6. glusterFS disk prep, install & config

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Ubuntu 22.04 Annoyances

Here are a few collected ways I like to customize Ubuntu 22.04 servers. I used to love Ubuntu, but I hate auto updates and snaps. They also put ads and other usless ads diguised as "news" in MOTD. ESM FUD is spread throughout the OS including simple apt functions. You do not need ESM and thus Ubuntu 22.04 has become super annoying. unattended-upgrade is an automatic installation of security (and other) upgrades without user intervention. Consider the ramifications of disabling this service.

Disable unattended upgrades

The Unattended Upgrades feature is enabled by default and it runs at system boot without the user's permission. The configuration is stored in /etc/apt/apt.conf.d/20auto-upgrades

Disable: sudo dpkg-reconfigure unattended-upgrades then a TUI will come up, select "No"

This will not permantently disable the function. After an update it will be enabled. In the file /etc/apt/apt.conf.d/20auto-upgrades change these values from 1 to 0. Even doing this it will

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llmc() {
    local system_prompt='Output a command that I can run in a ZSH terminal on macOS to accomplish the following task. Try to make the command self-documenting, using the long version of flags where possible. Output the command first enclosed in a "```zsh" codeblock followed by a concise explanation of how it accomplishes it.'
    local temp_file=$(mktemp)
    local capturing=true
    local command_buffer=""
    local first_line=true
    local cleaned_up=false # Flag to indicate whether cleanup has been run

    cleanup() {
        # Only run cleanup if it hasn't been done yet

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# [2023-05-25] Added Copilot Chat, and VSCode Insiders
# [2023-05-20] Add VSCode Insiders variant
# [2023-02-22] Added Copilot Labs

# Fix Github Co-pilot self-signed cert problem
# See: https://github.com/orgs/community/discussions/8866#discussioncomment-3517831

# Note
#
# To make Github Copilot/Nightly/Labs/Chat work, you might need additional

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% df -h
Filesystem                  Size  Used Avail Use% Mounted on
/dev/dm-1                    46G   14G   31G  31% /
udev                         10M     0   10M   0% /dev
tmpfs                       2.3G  9.2M  2.3G   1% /run
tmpfs                       5.8G  232K  5.8G   1% /dev/shm
tmpfs                       5.0M  4.0K  5.0M   1% /run/lock
tmpfs                       5.8G     0  5.8G   0% /sys/fs/cgroup
/dev/mapper/thinkbook-home   92G   55G   33G  63% /home
/dev/sda1                   232M   35M  181M  16% /boot

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# logfilename                                               [owner:group]       mode count size when  flags [/pid_file] [sig_num]
/Users/your-username/path-your-rails-project/log/*.log      your-username:staff 644  4     *    $D0   GJ

# NOTES
#
#   Place file in /etc/newsyslog.d
#   '$D0' under 'when' tells newsyslog to rotate logs daily at midnight.
#   Alternatively you could use '24' for 'when', which would specify "every 24 hours"
#   '*' under 'size' specifies that logs should be rotated regardless of their size.
#   'G' under 'flags' tells newsyslog that the 'logfilename' is a pattern and it should rotate all log files matching the pattern.

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#!/usr/bin/env bash

size=1024 # MB
mount_point=$HOME/tmp
name=$(basename "$mount_point")

usage() {
  echo "usage: $(basename "$0") [mount | umount | remount | check | orphan]" \
    "(default: mount)" >&2
}