{"id":8094,"date":"2020-09-21T07:46:19","date_gmt":"2020-09-21T12:46:19","guid":{"rendered":"https:\/\/bobbeaty.com\/wp\/?p=8094"},"modified":"2020-09-21T15:33:34","modified_gmt":"2020-09-21T20:33:34","slug":"github-codespaces-customization","status":"publish","type":"post","link":"https:\/\/bobbeaty.com\/wp\/archives\/8094","title":{"rendered":"GitHub Codespaces Customization"},"content":{"rendered":"

\"GitHub<\/p>\n

This morning I was able to make a stripped-down dotfiles<\/a> GitHub repo that Codespaces will use when a new Docker image is created. If there is a install<\/tt> file in the repo, it'll be executed after cloning the repo to the new user - as specified in the Dockerfile's USER<\/tt> variable.<\/p>\n

So in my Dockerfile I now have:<\/p>\n

  # Make my user for when we really get going, and pull in my env from GitHub<\/span>\n  ARG USERNAME<\/span>=drbob\n  ARG USER_UID<\/span>=1001<\/span>\n  ARG USER_GID<\/span>=$USER_UID<\/span>\n \n  # Create the user and add him to the sudoers so that he can install more stuff<\/span>\n  RUN groupadd --gid<\/span> $USER_GID<\/span> $USERNAME<\/span> \\\n      &&<\/span> useradd --uid<\/span> $USER_UID<\/span> --gid<\/span> $USER_GID<\/span> -m<\/span> $USERNAME<\/span> \\\n      &&<\/span> apt-get update<\/span> \\\n      &&<\/span> apt-get install<\/span> -y<\/span> sudo<\/span> \\\n      &&<\/span> echo<\/span> $USERNAME<\/span> ALL<\/span>=\\(<\/span>root\\)<\/span> NOPASSWD:ALL ><\/span> \/<\/span>etc\/<\/span>sudoers.d\/<\/span>$USERNAME<\/span> \\\n      &&<\/span> chmod<\/span> 0440 \/<\/span>etc\/<\/span>sudoers.d\/<\/span>$USERNAME<\/span>\n \n  # [Optional] Set the default user. Omit if you want to keep the default as root.<\/span>\n  USER $USERNAME<\/span><\/pre>\n
  #<\/span>\n  # This is a simple function to cleanup the GitHub Codespace once it's been<\/span>\n  # created. Basically, I need to remove the left-overs of the dotfiles setup<\/span>\n  # and clean up the permissions on all the files.<\/span>\n  #<\/span>\n  function<\/span> cleanup (<\/span>)<\/span> {<\/span>\n    pushd<\/span> $HOME<\/span>\n    echo<\/span> "cleaning up the dotfiles..."<\/span>\n    rm<\/span> -rf<\/span> dotfiles install<\/span> README.md\n    echo<\/span> "resetting the ownership of the workspace..."<\/span>\n    sudo<\/span> chown<\/span> -R<\/span> drbob:drbob workspace\n    echo<\/span> "cleaning up the permissions on the workspace..."<\/span>\n    sudo<\/span> chmod<\/span> -R<\/span> g-w workspace\n    sudo<\/span> chmod<\/span> -R<\/span> o-w workspace\n    sudo<\/span> setfacl -R<\/span> -bn<\/span> workspace\n    echo<\/span> "done"<\/span>\n    popd<\/span>\n  }<\/span><\/pre>\n
Very nice. \ud83d\ude42 <\/p>\n","protected":false},"excerpt":{"rendered":"
This morning I was able to make a stripped-down dotfiles GitHub repo that Codespaces will use when a new Docker image is created. If there is a install file in the repo, it’ll be executed after cloning the repo to the new user – as specified in the Dockerfile’s USER variable. So in my Dockerfile […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11,3,4,5],"tags":[],"class_list":["post-8094","post","type-post","status-publish","format-standard","hentry","category-clojure-coding","category-coding","category-open-source-software","category-vendors"],"_links":{"self":[{"href":"https:\/\/bobbeaty.com\/wp\/wp-json\/wp\/v2\/posts\/8094","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bobbeaty.com\/wp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bobbeaty.com\/wp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bobbeaty.com\/wp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bobbeaty.com\/wp\/wp-json\/wp\/v2\/comments?post=8094"}],"version-history":[{"count":3,"href":"https:\/\/bobbeaty.com\/wp\/wp-json\/wp\/v2\/posts\/8094\/revisions"}],"predecessor-version":[{"id":8097,"href":"https:\/\/bobbeaty.com\/wp\/wp-json\/wp\/v2\/posts\/8094\/revisions\/8097"}],"wp:attachment":[{"href":"https:\/\/bobbeaty.com\/wp\/wp-json\/wp\/v2\/media?parent=8094"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bobbeaty.com\/wp\/wp-json\/wp\/v2\/categories?post=8094"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bobbeaty.com\/wp\/wp-json\/wp\/v2\/tags?post=8094"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
At this point, I can launch a Codespace, it'll have all my necessary environment, and I can continue to refine it in my dotfiles<\/a> repo as that's only being used for the set-up of these Codespaces. So it's easy to remove things I'll never need there, and make sure it's customized to the things that I do need<\/em> there.<\/p>\n
and that lands me in the repo's home directory, but I still have to clean up the dotfiles<\/a> repo, and all the permissions from the last post. To do that, I made a simple function in my ~\/.bashrc<\/tt> that does all that:<\/p>\n