* Update config.yml

* Update Dockerfile

* Update .nvmrc

* Update Dockerfile

* NodeJS 10 is EOL.

* Update package.json

* Update README.md

* Update Vagrantfile

* Update Dockerfile

* Update Dockerfile

Stop using older version of resolv gem as the bug has been fixed.
https://bugs.ruby-lang.org/issues/17781

Ruby 2.7.3 introduced a new bug with Resolv::DNS, which we heavily use within
Mastodon: https://bugs.ruby-lang.org/issues/17781

Ruby 2.7.3 also included security fixes for two CVEs, but those do not seem
to apply to Mastodon:
https://github.com/tootsuite/mastodon/pull/16004#issuecomment-815125025

* Upgrade Ruby to 2.7.3

https://www.ruby-lang.org/en/news/2021/04/05/ruby-2-7-3-released/
includes security fixes to
- CVE-2021-28965: XML round-trip vulnerability in REXML
- CVE-2021-28966: Path traversal in Tempfile on Windows

* Update rexml to 3.2.5

https://www.ruby-lang.org/en/news/2021/04/05/xml-round-trip-vulnerability-in-rexml-cve-2021-28965/

* Format, apply hadolint suggestions, little nitpicks

* Use pre compiled jemalloc

* Use tini from package repository

This is a security release. You can read the announce at
https://nodejs.org/en/blog/vulnerability/january-2021-security-releases/

Kaniko does not support looking up binaries from $PATH, so we
specify the full path to the bash binary.

Co-authored-by: kaiyou <dev@kaiyou.fr>

thwait and e2mmap are no longer needed in Gemfile.
Gems properly require those.

* Dockerfile: Fix building with multiarch

Tested on amd64 and arm64

* Reduce docker image size by clean up some unneeded source file

* Update Dockerfile

* Update Dockerfile

Fix non-x64 architectures not being able to build Docker image because of hardcoded Node.js architecture (#13081)

* Use ARCH variable instead of hardcoded x64

* fix formating

[Rkt](https://coreos.com/rkt) doesn't allow ports to be exposed to containers unless they are declared in the container manifest. Re-adding EXPOSE back in (removed in 1dbf993b) allows the container to be used on rkt based systems.

* Update Ruby/Node/jemalloc source for Docker Image

* Update Dockerfile

* Update Dockerfile

- Always run apt update before any other apt command. (This fixes
  incremental builds failing if a remote package is updated.)
- Only copy dependency lists before installing dependencies. (This means
  editing code doesn't force all dependencies to be re-downloaded.)
- Delete cache in the same layer that it is created. (Otherwise,
  deleting cache *increases* the size of the image on non-squashed
  builds.)
- Move the installation of some static dependencies to *before* Mastodon
  code is imported to Docker.