>>> docker exec -it CONTAINERID /bin/sh
/app # telnet
/bin/sh: telnet: not found
/app # apk update
fetch http://dl-cdn.alpinelinux.org/alpine/v3.7/main/x86_64/APKINDEX.tar.gz
fetch http://dl-cdn.alpinelinux.org/alpine/v3.7/community/x86_64/APKINDEX.tar.gz
v3.7.0-243-gf26e75a186 [http://dl-cdn.alpinelinux.org/alpine/v3.7/main]
v3.7.0-229-g087f28e29d [http://dl-cdn.alpinelinux.org/alpine/v3.7/community]
Tëma Bolshakov bolshakov
Ryanb58
/ install.md
Last active
December 31, 2025 20:22
How to install telnet into a alpine docker container. This is useful when using the celery remote debugger in a dev environment.
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| class Singleton | |
| @@instance : Nil | Singleton | |
| @@instance = nil | |
| def self.new | |
| @@instance ||= Singleton.allocate.tap(&.initialize) | |
| @@instance.as(Singleton) | |
| end | |
| end |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| brew tap homebrew/versions | |
| brew install v8-315 | |
| gem install libv8 -v '3.16.14.13' -- --with-system-v8 | |
| gem install therubyracer -- --with-v8-dir=/usr/local/opt/v8-315 | |
| bundle install |
havenwood
/ require_relative_with_tco.rb
Last active
September 14, 2021 04:22
A #require_relative_with_tco that's like #require_relative but with tail call optimization
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| module Kernel | |
| def require_relative_with_tco file | |
| absolute_path = File.absolute_path file, __dir__ | |
| realpath = File.realpath "#{absolute_path.chomp '.rb'}.rb" | |
| if $LOADED_FEATURES.include? realpath | |
| false | |
| else | |
| RubyVM::InstructionSequence.compile_file( | |
| realpath, |