chore: Pre-build DevWorkspace templates for devfile v2

build/dockerfiles/Dockerfile

@@ -19,6 +19,13 @@ RUN ./index.sh > /build/devfiles/index.json
 RUN ./list_referenced_images.sh devfiles > /build/devfiles/external_images.txt
 RUN chmod -R g+rwX /build/devfiles
 
+FROM docker.io/node:12.20.1-alpine3.12 as dwtemplates
+RUN apk add --no-cache bash && npm install -g @eclipse-che/che-theia-devworkspace-handler
+COPY ./build/scripts /build/
+COPY ./devfiles /build/devfiles
+WORKDIR /build/
+RUN ./generate_devworkspace_templates.sh
+
 FROM docker.io/httpd:2.4.43-alpine AS registry
 RUN apk add --no-cache bash && \
     # Allow htaccess
@@ -31,6 +38,7 @@ RUN apk add --no-cache bash && \
     apk add --no-cache coreutils
 COPY .htaccess README.md /usr/local/apache2/htdocs/
 COPY --from=builder /build/devfiles /usr/local/apache2/htdocs/devfiles
+COPY --from=dwtemplates /build/out /usr/local/apache2/htdocs/devfiles/v2/che-theia/
 COPY ./images /usr/local/apache2/htdocs/images
 COPY ./build/dockerfiles/entrypoint.sh /usr/bin/
 ENTRYPOINT ["/usr/bin/entrypoint.sh"]

build/scripts/generate_devworkspace_templates.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+#
+# Copyright (c) 2019-2021 Red Hat, Inc.
+# This program and the accompanying materials are made
+# available under the terms of the Eclipse Public License 2.0
+# which is available at https://www.eclipse.org/legal/epl-2.0/
+#
+# SPDX-License-Identifier: EPL-2.0
+#
+
+mkdir /build/out/
+for dir in /build/devfiles/*/
+do
+  devfile=$(cat ${dir}meta.yaml | grep "v2:")
+  if [ -n "$devfile" ]; then
+    dir=${dir%/}
+    dir=/build/out/${dir##*/}
+    mkdir ${dir}
+    npx @eclipse-che/che-theia-devworkspace-handler --devfile-url:${devfile##*v2: } --output-file:${dir}/meta.yaml
+  fi
+done