prologic

Learn Go in ~5mins

This is inspired by A half-hour to learn Rust and Zig in 30 minutes.

Basics

Your first Go program as a classical "Hello World" is pretty simple:

First we create a workspace for our project:

prologic

---

version: "3.8"

services:
  master:
    image: chrislusf/seaweedfs:latest
    command: master -mdir=/data
    networks:
      - weed

prologic

name=iptables
version=1.4.21
release=1
source=(ftp://ftp.netfilter.org/pub/iptables/$name-$version.tar.bz2) 

PKG="$(pwd)/pkg"

if [ -d $PKG ]; then
    mkdir -p $PKG
fi

prologic

---
version: "3.8"

services:
  seed:
    image: consul:latest
    environment:
      - "CONSUL_LOCAL_CONFIG={\"disable_update_check\": true}"
      - "CONSUL_BIND_INTERFACE=eth0"
    entrypoint:

prologic

Self-Hosted Go (Golang) Web Apps

• golinks - golinks is a web app that allows you to create smart bookmarks, commands and aliases by pointing your web browser's default search engine at a running instance. Similar to bunny1 or yubnub. (Demo) MIT Go
• notes - notes is a self-hosted note taking web app that lets you keep track of your notes and search them in a easy and minimal way. (Demo) MIT Go
• pastebin - pastebin is a simple pastebin service with convenient CLI. (Demo) MIT Go
• shorturl - shorturl is a simple URL shortener with very tiny URL(s). (Demo) MIT Go
• todo - todo is a simple todo manager. (Demo) MIT Go
• [wiki](https://git.mills.io/prolog

prologic

[2023-04-14 21:04:08] <westbam0> Hello, small question. Can you read this feed with twtxt?? https://feeds.twtxt.net/@afpfr@amicale.net/twtxt.txt
[2023-04-14 21:05:44] <westbam0> with twtxt in command line, it shows me that 
[2023-04-14 21:05:44] <westbam0> ➤ afp_fr (14 hours ago):                                                                                                                    
[2023-04-14 21:05:44] <westbam0> ****
[2023-04-14 21:19:14] <buckket> They are using a format the original client does not support to do multiline posts
[2023-04-14 21:46:24] <westbam0> buckket And not a way to put in place a treatment to make it compatible? 
[2023-04-15 00:52:28] → lain` joined (uid504610@user/lain/x-9874679)
[2023-04-15 00:53:17] → jaix joined (~jaix@user/jaix)
[2023-04-15 01:05:00] → xuu joined (xuu@user/xuu)
[2023-04-15 02:13:11] ⇐ jaix quit (~jaix@user/jaix): Quit: Leaving

prologic

import 'dart:async';
import 'dart:io';
import 'package:json_rpc_2/json_rpc_2.dart';
import 'package:stream_channel/stream_channel.dart';

StreamChannel<String> unixSocketChannel(String path) {
  final host = InternetAddress(path, type: InternetAddressType.unix);
  final controller = StreamChannelController<String>(sync: true);
  Socket.connect(host, 0).then((socket) {
    socket.cast<String>().pipe(controller.local.sink);

prologic

FROM busybox

ENTRYPOINT ["echo", "Hello", "World"]

prologic

---
version: "3.8"

services:
  vault:
    # image: vault:latest
    image: prologic/vault:dev-ui
    hostname: "{{.Node.Hostname}}"
    environment:
      VAULT_ADDR: "http://127.0.0.1:8200"

prologic

1. Create a table named nat with the ip address family:

nft add table ip nat

2. Add the prerouting and postrouting chains to the table:

nft -- add chain ip nat prerouting { type nat hook prerouting priority -100 \; }