Try a Docker hello world

If Python environment is not freely available.

Docker/hello-docker/finish.md

+Well done, now try a more complex scenario.

Docker/hello-docker/index.json

+{
+  "title": "Hello Docker",
+  "description": "Kind of Docker hello world",
+  "difficulty": "Beginner",
+  "time": "1 minute",
+  "details": {
+    "steps": [
+      {
+        "title": "Step 1",
+        "text": "step1.md"
+      }
+    ],
+    "intro": {
+      "text": "intro.md"
+      "courseData": "intro-course-data.sh",
+      "credits": "This course was inpired by [Docker and Makefiles example from Ben Hall](https://github.com/BenHall/katacoda-scenarios/tree/master/1)"
+    },
+    "finish": {
+      "text": "finish.md"
+    }
+  },
+  "environment": {
+    "uilayout": "terminal"
+  },
+  "backend": {
+    "imageid": "docker"
+  }
+}

Docker/hello-docker/intro-course-data.sh

+echo 'FROM busybox' >> Dockerfile
+echo 'CMD ["echo", "hello world"]' >> Dockerfile

Docker/hello-docker/intro.md

+In this scenario you will learn how to launch a basic echo command in a simple docker container.

Docker/hello-docker/step1.md

+This scenario has a Dockerfile which defines a Docker container to output an hello world message.
+
+The command `docker build -t fcodvpt/docker-hello-world .`{{execute}} will create a Docker image is a friendly tag  _fcodvpt/docker-hello-world_ which we can use when starting a container based on the image.
+
+The command `docker run fcodvpt/docker-hello-world`{{execute}} will run the container and display the message.