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Technical Guide: Disabling NVIDIA GPU on MacBook Pro 11,3 (Linux)

Target System: MacBook Pro Retina 15" (Late 2013, Model 11,3)
OS: Linux (Mint/Ubuntu/Debian based)
Objective: Completely power down the dedicated NVIDIA GT 750M to save battery and reduce heat, relying solely on the Integrated Intel Iris Pro graphics.

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Phase 0: Install rEFInd

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deb https://deb.debian.org/debian/ trixie contrib main non-free non-free-firmware
# deb-src https://deb.debian.org/debian/ trixie contrib main non-free non-free-firmware

deb https://deb.debian.org/debian/ trixie-updates contrib main non-free non-free-firmware
# deb-src https://deb.debian.org/debian/ trixie-updates contrib main non-free non-free-firmware

deb https://deb.debian.org/debian/ trixie-proposed-updates contrib main non-free non-free-firmware
# deb-src https://deb.debian.org/debian/ trixie-proposed-updates contrib main non-free non-free-firmware

deb https://deb.debian.org/debian/ trixie-backports contrib main non-free non-free-firmware

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TP-Link TL-SG108E V1 config backup format

This switch does not allow you to choose which ports the default VLAN is connected to. Seeing that the configs for the default VLAN do get dumped into the config backup file, I decided to patch that file, modifying and uploading the internal config of the switch instead of politely asking it to remove that VLAN from some ports.

If you open the config file with a hex editor, you'll notice somewhere in the middle the strings "Default_VLAN", followed by the names of the VLANs

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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>Label</key>
    <string>mwd.sleepMac</string>
    <key>ProgramArguments</key>
    <array>
        <string>/path/to/sleepMac.sh</string>
    </array>

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Table of Contents

• set -e, -u, -x, -o pipefail
• set -e
• set -x
• set -u
• set -o pipefail
• Setting IFS
• Original Reference

set -e, -u, -x, -o pipefail

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Aspect or Feature	kubernetes/ingress-nginx	nginxinc/kubernetes-ingress with NGINX	nginxinc/kubernetes-ingress with NGINX Plus
Fundamental
Authors	Kubernetes community	NGINX Inc and community	NGINX Inc and community
NGINX version	Custom NGINX build that includes several third-party modules	NGINX official mainline build	NGINX Plus
Commercial support	N/A	N/A	Included
Implemented in	Go/Lua (while Nginx is written in C)	Go/Python	Go/Python
Load balancing configuration via the Ingress resource

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apiVersion: v1
kind: ConfigMap
metadata:
  # any name can be used; Velero uses the labels (below)
  # to identify it rather than the name
  name: change-storage-class-config
  # must be in the velero namespace
  namespace: velero
  # the below labels should be used verbatim in your
  # ConfigMap.

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FROM nginx:alpine AS builder

# nginx:alpine contains NGINX_VERSION environment variable, like so:
# ENV NGINX_VERSION 1.15.0

# Our NCHAN version
ENV NCHAN_VERSION 1.1.15

# Download sources
RUN wget "http://nginx.org/download/nginx-${NGINX_VERSION}.tar.gz" -O nginx.tar.gz && \

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K8s cluster

See logs of K8s cluster

https://kubernetes.io/docs/tasks/debug-application-cluster/debug-cluster/#looking-at-logs

show k8s api-server logging

sudo journalctl -u kube-apiserver --follow

see https://kubernetes.io/docs/reference/kubectl/cheatsheet/

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About

recvtty is a reference implementation of a consumer of runC's --console-socket API. It is automatically built when doing a make on the runc project.

Prereq

These instructions were tested on Ubuntu 16.04. Also go, git are required.

Install runC

go get github.com/opencontainers/runc
cd $GOPATH/src/github.com/opencontainers/runc