Fix Dockerfile for Darwin

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <[email protected]>

Dockerfile

@@ -1,7 +1,10 @@
 FROM ruby:2.7
-
-RUN curl -sLS https://get.arkade.dev | sh && \
-    arkade system install node
+ENV PATH=$PATH:/usr/local/bin/
+USER root 
+# RUN curl -sLS https://get.arkade.dev | sh
+RUN curl -SLs https://github.com/alexellis/arkade/releases/download/0.11.28/arkade-arm64 -o /usr/local/bin/arkade && find /usr/local/bin/ \
+    && chmod +x /usr/local/bin/arkade
+RUN arkade system install node
 
 WORKDIR /srv/jekyll
 

README.md

@@ -24,21 +24,24 @@ If you use any copyrighted material such as text, code, or images, then you must
 
 ### Running with docker, when Ruby 2.x is not installed
 
-For live-reloading, you may need to alter the inotify settings for Linux:
+For Linux:
+
+Update the inotify settings:
 
 ```bash
 echo 2048 | sudo tee /proc/sys/fs/inotify/max_user_instances
 sudo sysctl -p
 ```
 
+For MacOS/Linux:
+
 Run a `yarn install` locally:
 
 ```bash
 sudo npm i -g yarn
 yarn install
 ```
 
-
 Then bring the site up with:
 
 ```bash