build.tmpl

#!/usr/bin/env bash

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
# OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

set -e

follow_link() {
  FILE="$1"
  while [ -h "$FILE" ]; do
    # On Mac OS, readlink -f doesn't work.
    FILE="$(readlink "$FILE")"
  done
  echo "$FILE"
}

SCRIPT_PATH=$(realpath "$(dirname "$(follow_link "$0")")")
CONFIG_PATH=$(realpath "${1:-${SCRIPT_PATH}/config}")

{{- $func_index := 0 }}
{{ range $menu := (ds "build").menu -}}
{{ range $submenu := $menu.submenu -}}
{{ $func_index = math.Add $func_index 1 }}
menu_option_{{ $func_index }}() {
  INPUT_PATH="$SCRIPT_PATH"/{{ $submenu.build.path }}
  {{ $message := "" -}}
  {{- if (coll.Has $submenu "message") -}}
  {{- $message = $submenu.message -}}
  {{- else -}}
  {{- $message = printf "a %s Template" $submenu.entry -}}
  {{- end -}}
  echo -e "\nCONFIRM: Build {{ $message }} for VMware vSphere?"
  echo -e "\nContinue? (y/n)"
  read -r REPLY
  if [[ ! $REPLY =~ ^[Yy]$ ]]
  then
    exit 1
  fi

  ### Build {{ $message }} for VMware vSphere. ###
  echo "Building {{ $message }} for VMware vSphere..."

  ### Initialize HashiCorp Packer and required plugins. ###
  echo "Initializing HashiCorp Packer and required plugins..."
  packer init "$INPUT_PATH"

  ### Start the Build. ###
  echo "Starting the build...."
  packer build -force \
  {{- if (coll.Has $submenu.build "only") }}
      --only {{ join $submenu.build.only "," }} \
  {{- end -}}
  {{- if (coll.Has $menu.build "var_files") -}}
  {{ range $menu.build.var_files }}
      -var-file="$CONFIG_PATH/{{ . }}" \
  {{- end -}}
  {{- end -}}
  {{- if (coll.Has $submenu.build "var_files") -}}
  {{ range $submenu.build.var_files }}
      -var-file="$CONFIG_PATH/{{ . }}" \
  {{- end -}}
  {{- end }}
      "$INPUT_PATH"

  ### All done. ###
  echo "Done."
}
{{ end }}
{{ end -}}

press_enter() {
  cd "$SCRIPT_PATH"
  echo -n "Press Enter to continue."
  read -r
  clear
}

info() {
  echo "License: BSD-2"
  echo ""
  echo "For more information, review the project README."
  echo "GitHub Repository: github.com/vmware-samples/packer-examples-for-vsphere/"
  read -r
}

incorrect_selection() {
  echo "Do or do not. There is no try."
}

until [ "$selection" = "0" ]; do
  clear
  echo ""
  echo "    ____             __                ____        _ __    __     "
  echo "   / __ \____ ______/ /_____  _____   / __ )__  __(_) /___/ /____ "
  echo "  / /_/ / __  / ___/ //_/ _ \/ ___/  / __  / / / / / / __  / ___/ "
  echo " / ____/ /_/ / /__/ ,< /  __/ /     / /_/ / /_/ / / / /_/ (__  )  "
  echo "/_/    \__,_/\___/_/|_|\___/_/     /_____/\__,_/_/_/\__,_/____/   "
  echo ""
  echo -n "  Select a HashiCorp Packer build for VMware vSphere:"
  echo ""
  echo ""
{{- $menu_index := 0 }}
{{- range $menu := (ds "build").menu }}
  echo "      {{ $menu.entry }}:"
  echo ""
{{- range $submenu := $menu.submenu -}}
{{ $menu_index = math.Add $menu_index 1 }}
{{- if (lt $menu_index 10) }}
  echo "    	 {{ $menu_index }}  -  {{ $submenu.entry }}"
{{- else }}
  echo "    	{{ $menu_index }}  -  {{ $submenu.entry }}"
{{- end }}
{{- end }}
  echo ""
{{- end }}
  echo "      Other:"
  echo ""
  echo "        I   -  Information"
  echo "        Q   -  Quit"
  echo ""
  read -r selection
  echo ""
  case $selection in
{{- $selection_index := 0 }}
{{- range $menu := (ds "build").menu }}
{{- range $submenu := $menu.submenu -}}
{{ $selection_index = math.Add $selection_index 1 }}
    {{ $selection_index }} ) clear ; menu_option_{{ $selection_index }} ; press_enter ;;
{{- end }}
{{- end }}
    I ) clear ; info ; press_enter ;;
    Q ) clear ; exit ;;
    * ) clear ; incorrect_selection ; press_enter ;;
  esac
done