Added docker file to generate the image.

Dockerfile

@@ -0,0 +1,24 @@
+# syntax=docker/dockerfile:1
+FROM alpine:latest as base
+
+# Build Stage:
+FROM base AS build
+RUN apk add git build-base
+RUN git clone https://undercroft.ocathain.ie/barra/the-worlds-least-useful-clock.git
+RUN gcc the-worlds-least-useful-clock/the-worlds-least-useful-clock.c
+
+# Final Stage:
+FROM base AS final
+COPY --from=build a.out /bin/useless-clock
+ARG UID=10001
+RUN adduser \
+    --disabled-password \
+    --gecos "" \
+    --home "/nonexistent" \
+    --shell "/sbin/nologin" \
+    --no-create-home \
+    --uid "${UID}" \
+    appuser
+USER appuser
+COPY --from=build a.out /bin/useless-clock
+ENTRYPOINT [ "/bin/useless-clock" ]

README.org

@@ -1,3 +1,3 @@
-# the-worlds-least-useful-clock
+* the-worlds-least-useful-clock
 
 An example application for use in demonstrating Docker images and the Openshift Image Registry

the-worlds-least-useful-clock.c

@@ -0,0 +1,31 @@
+#include <time.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdbool.h>
+
+int main (int argc, char ** argv)
+{
+	time_t timestamp;
+	struct tm * timeinfo;
+	srand(time(NULL));
+	
+	while (true)
+	{		
+		time(&timestamp);
+		timeinfo = localtime(&timestamp);
+		if ((rand() % 10) == 0)
+		{
+			printf("The time is now for coffee. Coffee time it is.\n");
+		}
+		else
+		{
+			printf("The time is now: %s", asctime(timeinfo));
+		}
+		
+		fflush(stdout);
+		sleep(rand() % 12);
+	}
+	
+	return 0;
+}