Added rke stuff for deploying home kubernetes

supporting-scripts/site.sh

@@ -1,6 +1,38 @@
 #!/bin/bash
 #keep adding dirname's to go up more directories.
 project_dir="$(dirname $( dirname $(readlink -f ${BASH_SOURCE[0]})))"
-#ANSIBLE_HOST_KEY_CHECKING=False ansible-playbook -i ${project_dir}/hosts ${project_dir}/playbooks/lxc-test.yml
-ANSIBLE_HOST_KEY_CHECKING=False ansible-playbook -i ${project_dir}/hosts ${project_dir}/playbooks/kvm.yml
-ANSIBLE_HOST_KEY_CHECKING=False ansible-playbook -i ${project_dir}/hosts ${project_dir}/playbooks/site.yml
+
+declare -ar REQUIRED_ENVIRONMENT_VARIABLES=(
+    "PROXMOX_PASSWORD"
+    "GMAIL_SERVICE_PASSWORD"
+)
+
+main() {
+  check-env
+  run-ansible
+}
+
+check-env() {
+  local -a undefined_variables=()
+
+  for var in "${REQUIRED_ENVIRONMENT_VARIABLES[@]}"; do
+    if [[ ! -v ${var} ]]; then
+      undefined_variables+=("${var}")
+    fi
+  done
+
+  if [[ "${#undefined_variables[@]}" -gt 0 ]]; then
+    echo "${red}ERROR: The following environment variables must be defined:"
+    printf '    %s\n' "${undefined_variables[@]}"
+    echo "${reset}"
+    exit 1
+  fi
+}
+
+run-ansible() {
+  #ANSIBLE_HOST_KEY_CHECKING=False ansible-playbook -i ${project_dir}/hosts ${project_dir}/playbooks/lxc-test.yml
+  ANSIBLE_HOST_KEY_CHECKING=False ansible-playbook -i ${project_dir}/hosts ${project_dir}/playbooks/kvm.yml
+  ANSIBLE_HOST_KEY_CHECKING=False ansible-playbook -i ${project_dir}/hosts ${project_dir}/playbooks/site.yml
+}
+
+[[ $0 == "${BASH_SOURCE}" ]] && main "$@"