Proof-of-Concept work on various types of cluster load balancers for bare{metal,VM,whatever} k8s deployments.

IMPORTANT: Make sure you do all of the following in the first load balancer because that's how I did it and I don't have time to figure out how to do parameterization so that it's smart enough to know that it's not running on the first load balancer. OK??! OK. Just gonna walk it off now. Have a nice day.

1. GNU Make

This section is OPTIONAL but RECOMMENDED since it guarantees safety of your main Python environment or any other virtual environments you have lying around. That said, you're free to skip this part and just go with python3 -m venv ./.venv. Just make sure to activate that virtualenv before you go to the next section!

1. Install pyenv so that you can test with different versions of Python

curl -L https://raw.githubusercontent.com/yyuu/pyenv-installer/master/bin/pyenv-installer | bash

2. Append the following to your ~/.bashrc then log out and log back in

export PATH="$HOME/.pyenv/bin:$PATH"
eval "$(pyenv init -)"
eval "$(pyenv virtualenv-init -)"

3. Install development packages

sudo apt install build-essential libssl-dev zlib1g-dev libbz2-dev \
    libreadline-dev libsqlite3-dev wget curl llvm libncurses5-dev libncursesw5-dev \
    xz-utils tk-dev libffi-dev liblzma-dev python3-openssl git

4. Install Python 3.7

pyenv install 3.7.7

NOTE: For more available versions, run pyenv install --list

5. Create a virtualenv for this project

pyenv virtualenv 3.7.7 bare-asterisk-load-baalancer
pyenv local bare-asterisk-load-baalancer 3.7.7

Your newly created virtualenv should now be activated if your prompt changed to something like the following:

(bare-asterisk-load-baalancer) ubuntu@dev-18-04-2:/path/to/your/charm$

or, should you happen to be using my dotfiles, if the prompt includes the following:

... via 🐍 v3.7.7 (bare-asterisk-load-balancer)

Copy the sample inventory file

cp inventory.yml.example inventory.yml

Modify the values of each entry under the all->vars stanza in that file as needed. Once you have the variables just right, run:

make keepalived

make dependencies

make clean

make clean all=t