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%\usepackage{opensans}          % Can't make this work so far. Shame. Would be lovely.
\usepackage[normalem]{ulem}     % For underlining links
% Most of the following are not required for the majority
% of cheat sheets but are needed for some symbol support.
\usepackage{amsmath}            % Symbols
\usepackage{MnSymbol}           % Symbols
\usepackage{wasysym}            % Symbols
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% Document Info
\author{Hezart}
\pdfinfo{
  /Title (docker-and-compose.pdf)
  /Creator (Cheatography)
  /Author (Hezart)
  /Subject (Docker \& Compose Cheat Sheet)
}

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% Header and Footer
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\fancyhead[L]{
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{C}
    \SetRowColor{DarkBackground}
    \vspace{-7pt}
    {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent
        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
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\end{tabulary}
\columnbreak
\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Docker \& Compose Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{Hezart} via \textcolor{DarkBackground}{\uline{cheatography.com/214134/cs/46660/}}}
\end{tabulary}
\end{multicols}}

\fancyfoot[L]{ \footnotesize
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{LL}
  \SetRowColor{FootBackground}
  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}Hezart \\
  \uline{cheatography.com/hezart} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Not Yet Published.\\
   Updated 27th June, 2025.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
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  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}}  \\
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  \vspace{-5pt}
  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
\end{tabulary}
\end{multicols}}




\begin{document}
\raggedright
\raggedcolumns

% Set font size to small. Switch to any value
% from this page to resize cheat sheet text:
% www.emerson.emory.edu/services/latex/latex_169.html
\footnotesize % Small font.

\begin{multicols*}{3}

\begin{tabularx}{5.377cm}{x{1.14471 cm} x{3.83229 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Definitions}}  \tn
% Row 0
\SetRowColor{LightBackground}
Image & A snapshot or blueprint of an environment (OS + app + dependencies) \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
\seqsplit{Container} & A running instance of an image (lightweight, isolated environment) \tn 
% Row Count 6 (+ 3)
% Row 2
\SetRowColor{LightBackground}
\seqsplit{Dockerfile} & A text file with instructions to build a Docker image \tn 
% Row Count 8 (+ 2)
% Row 3
\SetRowColor{white}
Volume & Persistent data storage shared between host and container \tn 
% Row Count 10 (+ 2)
% Row 4
\SetRowColor{LightBackground}
Bind Mount & Mounts a specific file or folder from host into the container \tn 
% Row Count 13 (+ 3)
% Row 5
\SetRowColor{white}
Port Mapping & Links container port to host port (e.g., -p 8080:80) \tn 
% Row Count 15 (+ 2)
% Row 6
\SetRowColor{LightBackground}
Network & Virtual network for containers to talk to each other or the outside world \tn 
% Row Count 18 (+ 3)
% Row 7
\SetRowColor{white}
Base Image & The starting image in a Dockerfile (e.g., FROM ubuntu) \tn 
% Row Count 20 (+ 2)
% Row 8
\SetRowColor{LightBackground}
\seqsplit{ENTRYPOINT} & Default executable when container starts (used for fixed command behavior) \tn 
% Row Count 23 (+ 3)
% Row 9
\SetRowColor{white}
CMD & Arguments passed to ENTRYPOINT or default command (overridable) \tn 
% Row Count 26 (+ 3)
% Row 10
\SetRowColor{LightBackground}
Context & Files sent to the Docker engine when building an image \tn 
% Row Count 28 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{1.29402 cm} x{3.68298 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{docker-compose.yml}}  \tn
% Row 0
\SetRowColor{LightBackground}
services & Top-level section; defines each container \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
image & Use an image from registry or local \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
build & Build image from Dockerfile (build: . or build: ./app) \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
\seqsplit{container\_name} & Optional name for the container \tn 
% Row Count 8 (+ 2)
% Row 4
\SetRowColor{LightBackground}
ports & Host-to-container port mapping ("8080:80") \tn 
% Row Count 10 (+ 2)
% Row 5
\SetRowColor{white}
volumes & Mount host paths or named volumes ("./data:/app/data") \tn 
% Row Count 12 (+ 2)
% Row 6
\SetRowColor{LightBackground}
\seqsplit{environment} & Set environment variables (VAR=value) \tn 
% Row Count 14 (+ 2)
% Row 7
\SetRowColor{white}
command & Override CMD from image/Dockerfile \tn 
% Row Count 16 (+ 2)
% Row 8
\SetRowColor{LightBackground}
\seqsplit{depends\_on} & Declare startup order between services \tn 
% Row Count 18 (+ 2)
% Row 9
\SetRowColor{white}
networks & Assign container to network (default if not declared) \tn 
% Row Count 20 (+ 2)
% Row 10
\SetRowColor{LightBackground}
restart & Auto-restart policy (always, on-failure, unless-stopped) \tn 
% Row Count 22 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
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\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{p{0.74655 cm} x{4.23045 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Dockerfile}}  \tn
% Row 0
\SetRowColor{LightBackground}
FROM & Sets the base image \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
\seqsplit{WORKDIR} & Sets working directory inside container \tn 
% Row Count 3 (+ 2)
% Row 2
\SetRowColor{LightBackground}
COPY & Copies files into the image \tn 
% Row Count 4 (+ 1)
% Row 3
\SetRowColor{white}
RUN & Executes a command in the image \tn 
% Row Count 5 (+ 1)
% Row 4
\SetRowColor{LightBackground}
\seqsplit{EXPOSE} & Declares which port(s) the container uses \tn 
% Row Count 7 (+ 2)
% Row 5
\SetRowColor{white}
USER & Sets default user inside the container \tn 
% Row Count 9 (+ 2)
% Row 6
\SetRowColor{LightBackground}
CMD & Default command to run in a container \tn 
% Row Count 11 (+ 2)
% Row 7
\SetRowColor{white}
ENV & Sets environment variables \tn 
% Row Count 12 (+ 1)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
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\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.14011 cm} x{2.83689 cm} }
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\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Docker commands}}  \tn
% Row 0
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docker ps (-a) & List containers \tn 
% Row Count 1 (+ 1)
% Row 1
\SetRowColor{white}
docker exec -it container bash & Run command in a running container (e.g., open shell) \tn 
% Row Count 4 (+ 3)
% Row 2
\SetRowColor{LightBackground}
docker stop container & Gracefully stop a container \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
docker rm container & Delete (remove) a stopped container \tn 
% Row Count 8 (+ 2)
% Row 4
\SetRowColor{LightBackground}
docker rmi image & Delete an image \tn 
% Row Count 9 (+ 1)
% Row 5
\SetRowColor{white}
docker logs container & View container output logs \tn 
% Row Count 11 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
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\par\addvspace{1.3em}

\begin{tabularx}{5.377cm}{x{2.23965 cm} x{2.73735 cm} }
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\mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Docker Compose Commands}}  \tn
% Row 0
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docker-compose up & Start services (build if needed) \tn 
% Row Count 2 (+ 2)
% Row 1
\SetRowColor{white}
docker-compose up -d & Start in background (detached mode) \tn 
% Row Count 4 (+ 2)
% Row 2
\SetRowColor{LightBackground}
docker-compose down & Stop and remove containers + network \tn 
% Row Count 6 (+ 2)
% Row 3
\SetRowColor{white}
docker-compose build & Build services from Dockerfile \tn 
% Row Count 8 (+ 2)
% Row 4
\SetRowColor{LightBackground}
docker-compose ps & List running services \tn 
% Row Count 9 (+ 1)
% Row 5
\SetRowColor{white}
docker-compose logs & View service logs \tn 
% Row Count 11 (+ 2)
% Row 6
\SetRowColor{LightBackground}
docker-compose exec service sh & Shell into a running container \tn 
% Row Count 13 (+ 2)
% Row 7
\SetRowColor{white}
docker-compose restart & Restart all or specific service(s) \tn 
% Row Count 15 (+ 2)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


% That's all folks
\end{multicols*}

\end{document}