mak3r

docker run --rm -v /var/run/docker.sock:/var/run/docker.sock \
    assaflavie/runlike <container>

mak3r

Disable swap - works on raspbian buster

sudo systemctl disable dphys-swapfile.service

Disable swap - fedora 30

sudo systemctl disable zram-swap.service

mak3r

#!/bin/sh

#run this in all open terminals 
history -a

# run this in the terminal where history (raw and sorted) is being captured
history -a; history -c; history -r

# capture the history to a file 
# because sometimes order of operations matters

mak3r

#!/bin/sh

# based on this https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/finding-an-ami.html#finding-an-ami-aws-cli
aws ec2 describe-images --owners 099720109477 --filters 'Name=name,Values=ubuntu/images/hvm-ssd/ubuntu-bionic-18.04-amd64-server-????????' 'Name=state,Values=available' --query 'reverse(sort_by(Images, &CreationDate))[:1].ImageId' --output text

mak3r

setw -g mode-keys vi
bind-key @ command-prompt -p "create pane from:"  "join-pane -s ':%%'"

mak3r

for i in $(docker ps | cut -f 1 -d " " | grep -v CONTAINER); do docker stop $i; docker rm $i; done

mak3r

Demo at Arm TechCon 2019

Executive Materials

Summary https://rancher.com/blog/2019/rancher-and-arm-partner-to-accelerate-edge-computing

White paper https://info.rancher.com/accelerating-edge-computing-with-arm-and-k3s-lightweight-kubernetes

Technical Materials

mak3r

Packer and Vagrant resources to build k3os in VirtualBox

Requirements

• packer
• vagrant
• virtualbox

Build and Run

1. packer build k3os.json
2. vagrant up

mak3r

Access aws instances easily even after dns name changes

Restarts of aws ec2 instances can cause ips and dns names to change if you don't pay for static IPs

This set of scripts enables quick ssh access to a group of similarly named machines

1. run generate-instance-list.sh to get a list of aws instance ids
2. run ssh-connect.sh against the generated list to access any of the instances

TODO

Currently it is not possible to differentiate the machines easily - enable access by more human readable names in the generated instance list.

mak3r

Prep

1. Generate a list of instances

• sbin/generate-instance-list.sh -n mak3r-rancher-training-k3s > instance-ids.json
• use a script to connect to those instances by list id
  • sbin/ssh-connect.sh -i 0 -k ~/.ssh/mak3r-private.pem -s

2. Get the cloud server public IP address and replace throughout the script
3. Prepare a local RPi server

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