initial commit

01_registry_pull/pull.sh

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+#!/bin/bash
+
+docker pull ubuntu:23.04
+
+docker image ls | grep ubuntu

02_simple_dockerfile/Dockerfile

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+FROM ubuntu:22.04
+
+RUN apt update
+RUN apt install -yq --no-install-recommends \
+    # git \
+    wget \
+    gcc
+COPY cool_file.txt /

02_simple_dockerfile/build_simple.sh

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+#!/bin/bash
+
+# build the image
+docker build -t simple:02 .
+
+# see the image now exists
+docker image ls | grep simple
+
+# run interactive container of image
+# -i = interactive
+# -t = allocate a pseudo tty for interactive shell
+# --rm remove the container created by this run command after it exits
+docker run -it --rm simple:02 /bin/bash
+
+# alternatively, start the container, print the file, and exit/close the container
+# docker run --rm simple:02 cat /cool_file.txt

02_simple_dockerfile/cool_file.txt

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+Hello there!

03_dockerfile_with_args/Dockerfile

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+FROM ubuntu:22.04
+
+RUN apt update \
+    && apt install -yq --no-install-recommends \
+        wget \
+        tar \
+        xz-utils \
+        ca-certificates \
+    && rm -rf /var/lib/apt/list
+
+ARG CMAKE_VERSION=3.16.5
+RUN wget https://github.com/Kitware/CMake/releases/download/v${CMAKE_VERSION}/cmake-${CMAKE_VERSION}-Linux-x86_64.sh \
+      -q --no-verbose --show-progress --progress=bar:force:noscroll -O /tmp/cmake-install.sh \
+      && chmod u+x /tmp/cmake-install.sh \
+      && mkdir /usr/bin/cmake \
+      && /tmp/cmake-install.sh --skip-license --prefix=/usr/ \
+      && rm /tmp/cmake-install.sh

03_dockerfile_with_args/build_with_args.sh

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+#!/bin/bash
+
+# build with CMake version specified in dockerfile
+docker build -t with_args:default .
+docker run --rm with_args:default cmake --version
+
+# build with specific CMake version
+docker build --build-arg CMAKE_VERSION=3.26.5 -t with_args:3.26 .
+docker run --rm with_args:3.26 cmake --version

README.md

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+# docker_demo
+
+Set of demo examples to demonstrate docker capabilities