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@BretFisher
BretFisher / docker-swarm-ports.md
Last active June 11, 2024 14:06
Docker Swarm Port Requirements, both Swarm Mode 1.12+ and Swarm Classic, plus AWS Security Group Style Tables

Docker Swarm Mode Ports

Starting with 1.12 in July 2016, Docker Swarm Mode is a built-in solution with built-in key/value store. Easier to get started, and fewer ports to configure.

Inbound Traffic for Swarm Management

  • TCP port 2377 for cluster management & raft sync communications
  • TCP and UDP port 7946 for "control plane" gossip discovery communication between all nodes
  • UDP port 4789 for "data plane" VXLAN overlay network traffic
  • IP Protocol 50 (ESP) if you plan on using overlay network with the encryption option

AWS Security Group Example

@kevin-smets
kevin-smets / 1_kubernetes_on_macOS.md
Last active May 5, 2024 10:12
Local Kubernetes setup on macOS with minikube on VirtualBox and local Docker registry

Requirements

Minikube requires that VT-x/AMD-v virtualization is enabled in BIOS. To check that this is enabled on OSX / macOS run:

sysctl -a | grep machdep.cpu.features | grep VMX

If there's output, you're good!

Prerequisites

@alexellis
alexellis / Dockerfile
Last active December 5, 2022 23:46
Run a one-shot job on Docker Swarm Mode
FROM golang:1.7.3
RUN mkdir -p /go/src/github.com/alexellis2/jaas
WORKDIR /go/src/github.com/alexellis2/jaas
COPY ./app.go ./
RUN go get -v -d
RUN go build
@troyfontaine
troyfontaine / 1-setup.md
Last active July 23, 2024 23:25
Signing your Git Commits on MacOS

Methods of Signing Git Commits on MacOS

Last updated March 13, 2024

This Gist explains how to sign commits using gpg in a step-by-step fashion. Previously, krypt.co was heavily mentioned, but I've only recently learned they were acquired by Akamai and no longer update their previous free products. Those mentions have been removed.

Additionally, 1Password now supports signing Git commits with SSH keys and makes it pretty easy-plus you can easily configure Git Tower to use it for both signing and ssh.

For using a GUI-based GIT tool such as Tower or Github Desktop, follow the steps here for signing your commits with GPG.