initial commit

02_simple_dockerfile/Dockerfile

@@ -0,0 +1,8 @@
+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

@@ -0,0 +1,16 @@
+#!/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

@@ -0,0 +1 @@
+Hello there!