.devcontainer\devcontainer.json

{
    "name": "latex-env",
    "extensions": [
        "james-yu.latex-workshop"
    ],
    "dockerFile": "Dockerfile",
    "mounts": [
        "source=${localEnv:HOME}${localEnv:USERPROFILE}/.gitconfig,target=~/.gitconfig,type=bind,consistency=cached"
    ]
} 

.devcontainer\Dockerfile

FROM ubuntu:18.10

# non interactive frontend for locales
ENV DEBIAN_FRONTEND=noninteractive

# installing texlive and utils
RUN apt-get update && \
    apt-get -y install --no-install-recommends pandoc texlive texlive-latex-extra texlive-generic-extra texlive-extra-utils texlive-fonts-extra texlive-bibtex-extra biber latexmk make git procps locales curl && \
    rm -rf /var/lib/apt/lists/*

# generating locales
RUN sed -i -e 's/# en_US.UTF-8 UTF-8/en_US.UTF-8 UTF-8/' /etc/locale.gen && \
    dpkg-reconfigure --frontend=noninteractive locales && \
    update-locale LANG=en_US.UTF-8
ENV LANGUAGE=en_US.UTF-8 LANG=en_US.UTF-8 LC_ALL=en_US.UTF-8

# installing cpanm & missing latexindent dependencies
RUN curl -L http://cpanmin.us | perl - --self-upgrade && \
    cpanm Log::Dispatch::File YAML::Tiny File::HomeDir

.vscode\settings.json

{
    "latex-workshop.latex.outDir": "./out",
    "latex-workshop.synctex.afterBuild.enabled": true,
    "latex-workshop.view.pdf.viewer": "tab",
    "latex-workshop.synctex.afterBuild.enabled": true
}