For the last 3 years this blog was written using Jekyll which has a series of requirements such as Ruby that I don't want to keep installing or maintaining on my PC. So I created this Developer Container for those who want to use Jekyll from an isolated container.
Let's check the container definition:
1. devcontainer.json file
This file configures the remote container with the specified extensions
{
"name": "Jekyll",
"dockerFile": "Dockerfile",
// Use 'settings' to set *default* container specific settings.json values on container create.
// You can edit these settings after create using File > Preferences > Settings > Remote.
"settings": {
"terminal.integrated.shell.linux": "/bin/bash"
},
// Use 'appPort' to create a container with published ports. If the port isn't working, be sure
// your server accepts connections from all interfaces (0.0.0.0 or '*'), not just localhost.
// "appPort": ["3000:3000"],
// Uncomment the next line to run commands after the container is created.
// "postCreateCommand": "cd ${input:projectName} && bundle install",
// Uncomment the next line to use a non-root user. On Linux, this will prevent
// new files getting created as root, but you may need to update the USER_UID
// and USER_GID in .devcontainer/Dockerfile to match your user if not 1000.
// "runArgs": ["-u", "vscode"],
// Add the IDs of extensions you want installed when the container is created in the array below.
"extensions": []
}
2. Dockerfile
This is the Dockerfile with all the tooling for the Jekyll environment.
FROM debian:latest
# Avoid warnings by switching to noninteractive
ENV DEBIAN_FRONTEND=noninteractive
# This Dockerfile adds a non-root 'vscode' user with sudo access. However, for Linux,
# this user's GID/UID must match your local user UID/GID to avoid permission issues
# with bind mounts. Update USER_UID / USER_GID if yours is not 1000. See
# https://aka.ms/vscode-remote/containers/non-root-user for details.
ARG USERNAME=vscode
ARG USER_UID=1000
ARG USER_GID=$USER_UID
# Configure apt and install packages
RUN apt-get update \
&& apt-get -y install --no-install-recommends apt-utils dialog 2>&1 \
#
# Install vim, git, process tools, lsb-release
&& apt-get install -y \
git \
#
# Install ruby
&& apt-get install -y \
make \
build-essential \
ruby \
ruby-dev \
#
# Install jekyll
&& gem install \
bundler \
jekyll \
#
# Create a non-root user to use if preferred - see https://aka.ms/vscode-remote/containers/non-root-user.
&& groupadd --gid $USER_GID $USERNAME \
&& useradd -s /bin/bash --uid $USER_UID --gid $USER_GID -m $USERNAME \
# [Optional] Add sudo support for the non-root user
&& apt-get install -y sudo \
&& echo $USERNAME ALL=\(root\) NOPASSWD:ALL > /etc/sudoers.d/$USERNAME\
&& chmod 0440 /etc/sudoers.d/$USERNAME \
#
# Clean up
&& apt-get autoremove -y \
&& apt-get clean -y \
&& rm -rf /var/lib/apt/lists/*
# Switch back to dialog for any ad-hoc use of apt-get
ENV DEBIAN_FRONTEND=dialog
To learn more about this Remote Container please check here.
Hope it helps!
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