Quick Hit Lab for CMX (initial skeleton) (#314)

TL;DR
-----

Sketches out an initial skeleton for a fast CMX lab

Details
-------

Creates the track structure and first challenge for a quick lab on CMX to
use at Kubecon. This PR just gets those files in place to simplify working
with the lab setup as the lab gets full developed.

instruqt/trying-out-cmx/01-create-a-test-cluster/assignment.md

@@ -0,0 +1,38 @@
+---
+slug: create-a-test-cluster
+id: znzkrjto96nr
+type: challenge
+title: Create a Test Cluster
+teaser: A short description of the challenge.
+notes:
+- type: text
+  contents: Replace this text with your own text
+tabs:
+- title: Vendor Portal
+  type: website
+  url: https://vendor.replicated.com/compatibility-matrix/clusters
+  new_window: true
+difficulty: basic
+timelimit: 300
+---
+
+
+👋 Introducing the Comptibility Matrix
+======================================
+
+The Replicated Compatibility Matrix is a service for quickly and easily
+spinning up ephemeral clusters for testing your application. You can manage
+your clusters using the Replicated Vendor Portal. We also provide a command-line
+interface and a series of GitHub actions to facilitate Continuous Delivery.
+
+Clusters Available
+==================
+
+Let's use the Replicated Vendor Portal to understand the types of clusters
+you can create for you testing. Click the "Vendor Portal" tab and log in with
+the following credentials
+
+Username: `[[ Instruqt-Var key="USERNAME" hostname="shell" ]]`<br/>
+Password: `[[ Instruqt-Var key="PASSWORD" hostname="shell" ]]`
+
+

instruqt/trying-out-cmx/01-create-a-test-cluster/check-shell

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+#!/bin/sh
+#
+# This script runs when the platform check the challenge.
+#
+# The platform determines if the script was successful using the exit code of this
+# script. If the exit code is not 0, the script fails. 
+#
+
+echo "This is the check script"
+
+exit 0

instruqt/trying-out-cmx/01-create-a-test-cluster/cleanup-shell

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+#!/bin/sh
+#
+# This script runs when the platform cleanup the challenge.
+#
+# The platform determines if the script was successful using the exit code of this
+# script. If the exit code is not 0, the script fails. 
+#
+
+echo "This is the cleanup script"
+
+exit 0

instruqt/trying-out-cmx/01-create-a-test-cluster/setup-shell

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+#!/usr/bin/env bash
+
+# This set line ensures that all failures will cause the script to error and exit
+set -euxo pipefail
+
+HOME_DIR=/home/replicant
+
+# Wait for Instruqt bootstrap to be complete
+while [ ! -f /opt/instruqt/bootstrap/host-bootstrap-completed ]
+do
+  echo "Waiting for Instruqt to finish booting the VM"
+  sleep 1
+done
+
+# convenience library for Replicated lab lifecycle scripts
+source /etc/profile.d/header.sh
+
+agent variable set USERNAME $(get_username)
+agent variable set PASSWORD $(get_password)

instruqt/trying-out-cmx/01-create-a-test-cluster/solve-shell

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+#!/bin/sh
+#
+# This script runs when the platform solve the challenge.
+#
+# The platform determines if the script was successful using the exit code of this
+# script. If the exit code is not 0, the script fails. 
+#
+
+echo "This is the solve script"
+
+exit 0

instruqt/trying-out-cmx/config.yml

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+version: "3"
+containers:
+- name: shell
+  image: gcr.io/kots-field-labs/shell:latest
+  shell: tmux new-session -A -s shell su - replicant

instruqt/trying-out-cmx/track.yml

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+slug: trying-out-cmx
+id: 1gpba3eivmb4
+title: Trying Out the Replicated Compability Matrix
+teaser: |-
+  Learn how the Replicated Platform helps you prevent cluster compatibility
+  issue before you release to your customers
+description: |2-
+
+  What if you could automatically test your new releases on truly
+  customer-representative environments—same cloud provider, same Kubernetes
+  distribution and version, and even the same entitlements and configuration?
+  With the [Compatibility Matrix](https://www.replicated.com/test-compatibility-in-customer-representative-environments),
+  you can.
+icon: https://storage.googleapis.com/shared-lab-assets/icons/red/connect.png
+tags:
+- prod
+- builders-plan
+- compatibility-matrix
+- helm
+owner: replicated
+developers:
+- [email protected]
+lab_config:
+  overlay: false
+  width: 33
+  position: right
+checksum: "16262887100161909657"

instruqt/trying-out-cmx/track_scripts/setup-shell

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+#!/usr/bin/env bash
+
+# This set line ensures that all failures will cause the script to error and exit
+set -euxo pipefail
+
+# simple SSH client setup so we can SSH to/from the shell
+
+cat <<EOF >> "$HOME/.ssh/config"
+Host *
+    StrictHostKeyChecking no
+    UserKnownHostsFile /dev/null
+EOF
+
+# assure an RSA key for Dropbear
+ssh-keygen -t rsa -f /etc/dropbear/dropbear_rsa_host_key -N ''
+
+# use our shared libary in setup scripts
+curl -s -o /etc/profile.d/header.sh https://raw.githubusercontent.com/replicatedhq/kots-field-labs/main/libs/header.sh

instruqt/trying-out-cmx/vendor/vendor.json

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+{
+    "name": "Harbor",
+    "slug": "harbor",
+    "customer": "Omozan",
+    "yaml_dir": "",
+    "k8s_installer_yaml_path": ""
+}