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-rw-r--r--examples/001/Dockerfile7
1 files changed, 6 insertions, 1 deletions
diff --git a/examples/001/Dockerfile b/examples/001/Dockerfile
index 3657293..3cab792 100644
--- a/examples/001/Dockerfile
+++ b/examples/001/Dockerfile
@@ -1,5 +1,10 @@
+# Initializes a build stage and sets a Base Image.
FROM alpine:latest
-COPY hello.rb /usr/local/bin/hello
+# Install the ruby package
RUN apk add ruby
+# Copy file from the host to the Docker image.
+COPY hello.rb /usr/local/bin/hello
+# Give "hello" the executable permission
RUN chmod +x /usr/local/bin/hello
+# Set the default command to run
CMD ["hello"]