Differentiate between args and environment variables in example (#42)

gravitational · Mar 24, 2020 · a4837a9 · a4837a9
1 parent 79a2db3
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diff --git a/docker.md b/docker.md
@@ -565,7 +565,7 @@ We can supply build arguments as flags to `docker build` as we already did to th
 
 ```bash
 $ cd docker/busybox-arg
-$ docker build --build-arg=BUILD1="Alice and Bob" -t hello:v5 .
+$ docker build --build-arg=ARG1="Alice and Bob" -t hello:v5 .
 $ docker run hello:v5
 hello, Alice and Bob!
 ```

diff --git a/docker/busybox-arg/Dockerfile b/docker/busybox-arg/Dockerfile
@@ -1,5 +1,5 @@
 FROM busybox
 ADD hello.sh /hello.sh
-ARG BUILD1
-ENV BUILD1 $BUILD1
-ENTRYPOINT ["/hello.sh"]
+ARG ARG1
+ENV BUILD1 $ARG1
+ENTRYPOINT ["/hello.sh"]