Add Docker image with export infrastructure.

Dockerfile

@@ -1,4 +1,4 @@
-FROM eclipse-temurin:21.0.6_7-jre-noble
+FROM eclipse-temurin:21.0.6_7-jre-noble AS structurizr-lite
 ENV PORT=8080
 
 RUN set -eux; \
@@ -12,3 +12,36 @@ EXPOSE ${PORT}
 HEALTHCHECK CMD curl --fail http://localhost:${PORT}/health || exit 1
 
 CMD ["java", "-Dserver.port=${PORT}", "-jar", "/usr/local/structurizr-lite.war"]
+
+FROM structurizr-lite AS structurizr-export
+
+ENV STRUCTURIZR_EXPORT=/opt/structurizr-export
+ENV STRUCTURIZR_WORKSPACE_PATH=/workspace
+
+RUN set -eux; \
+	apt-get install -y --no-install-recommends git nodejs npm; \
+        git clone https://github.com/structurizr/puppeteer.git $STRUCTURIZR_EXPORT; \
+        sed -i $STRUCTURIZR_EXPORT/export-diagrams.js -e 's@headless: HEADLESS@headless: HEADLESS, args: [ "--no-sandbox" ]@'; \
+        sed -i $STRUCTURIZR_EXPORT/export-documentation.js -e 's@headless: HEADLESS@headless: HEADLESS, args: [ "--no-sandbox" ]@'; \
+	cd $STRUCTURIZR_EXPORT; \
+        npm install puppeteer; \
+	npx puppeteer browsers install --install-deps chrome-headless-shell@stable; \
+	npm install -g svgo; \
+	mkdir $STRUCTURIZR_WORKSPACE_PATH; \
+        apt-get remove -y --purge git npm; \
+        apt-get autoremove -y; \
+	rm -rf /var/lib/apt/lists/* /var/cache/apt/*
+
+COPY svgo /usr/local/lib/svgo
+COPY --chmod=0775 puppeteer-export-diagrams.sh /usr/local/bin/export-diagrams
+COPY --chmod=0775 puppeteer-export-documentation.sh /usr/local/bin/export-documentation
+
+WORKDIR /workspace
+
+CMD ["/bin/bash"]
+
+# Local Variables:
+# dockerfile-indent-offset: 8
+# tab-width: 8
+# indent-tabs-mode: t
+# End:

puppeteer-export-diagrams.sh

@@ -0,0 +1,35 @@
+#!/bin/bash
+# export <output-directory> [[format] ...]
+
+cleanup() {
+    kill %1
+    wait
+}
+
+export STRUCTURIZR_WORKSPACE_FILENAME=$1
+shift
+OUTPUT_DIR="${STRUCTURIZR_WORKSPACE_PATH}/${1}"
+shift
+
+java -Dserver.port=${PORT} -jar /usr/local/structurizr-lite.war / &
+(until printf "" 2>>/dev/null >>/dev/tcp/localhost/$PORT; do sleep 1; done) > /dev/null 2>&1
+
+trap cleanup EXIT
+trap cleanup INT
+trap cleanup TERM
+
+mkdir -p "$OUTPUT_DIR"
+cd "$OUTPUT_DIR"
+
+for FORMAT in $@; do
+    echo exporting $STRUCTURIZR_WORKSPACE_FILENAME diagrams to $FORMAT in $OUTPUT_DIR
+    for FILE in $(node $STRUCTURIZR_EXPORT/export-diagrams.js http://localhost:$PORT $FORMAT | grep "^ - .*\\.$FORMAT" | sed "s/ - //"); do
+        OUTPUT_FILE="$OUTPUT_DIR/${STRUCTURIZR_WORKSPACE_FILENAME}_${FILE}"
+        if [ $FORMAT == svg ]; then
+            svgo --config=/usr/local/lib/svgo/svgo.config.js --quiet "$OUTPUT_DIR/$FILE" -o "$OUTPUT_FILE"
+        else
+            mv "$OUTPUT_DIR/$FILE" "$OUTPUT_FILE"
+        fi
+        echo exported "$OUTPUT_FILE"
+    done
+done

puppeteer-export-documentation.sh

@@ -0,0 +1,25 @@
+#!/bin/bash
+# export <output-directory> [[format] ...]
+
+cleanup() {
+    kill %1
+    wait
+}
+
+export STRUCTURIZR_WORKSPACE_FILENAME=$1
+shift
+OUTPUT_DIR="${STRUCTURIZR_WORKSPACE_PATH}/${1}"
+shift
+
+java -Dserver.port=${PORT} -jar /usr/local/structurizr-lite.war / &
+(until printf "" 2>>/dev/null >>/dev/tcp/localhost/$PORT; do sleep 1; done) > /dev/null 2>&1
+
+trap cleanup EXIT
+trap cleanup INT
+trap cleanup TERM
+
+mkdir -p "$OUTPUT_DIR"
+cd "$OUTPUT_DIR"
+
+echo exporting $STRUCTURIZR_WORKSPACE_FILENAME documentation in $OUTPUT_DIR
+node $STRUCTURIZR_EXPORT/export-documentation.js http://localhost:$PORT $FORMAT

svgo/removeNoDimensionImages.js

@@ -0,0 +1,27 @@
+'use strict';
+
+exports.name = 'removeNodDimensionImages';
+exports.type = 'visitor';
+exports.active = true;
+exports.description = 'removes images without width or height attributes (disabled by default)';
+
+/**
+ * Remove raster images references in <image>.
+ *
+ * @see https://bugs.webkit.org/show_bug.cgi?id=63548
+ *
+ * @author Kir Belevich
+ *
+ * @type {import('../lib/types').Plugin<void>}
+ */
+exports.fn = () => {
+  return {
+    element: {
+        enter: (node, parentNode) => {
+            if (node.name === 'image' && !(node.attributes.width  && node.attributes.height)) {
+                parentNode.children = parentNode.children.filter((child) => child !== node);
+            }
+        },
+    },
+  };
+};

svgo/svgo.config.js

@@ -0,0 +1,10 @@
+
+const removeNoDimensionImages = require('/usr/local/lib/svgo/removeNoDimensionImages.js');
+module.exports = {
+    multipass: true,
+
+    plugins: [
+        'preset-default',
+        removeNoDimensionImages,
+    ],
+};