initial release for v3 on js tag

Dockerfile

@@ -1,4 +1,4 @@
-FROM ghcr.io/linuxserver/baseimage-alpine-nginx:3.12
+FROM ghcr.io/linuxserver/baseimage-alpine:3.13
 
 # set version label
 ARG BUILD_DATE
@@ -8,32 +8,45 @@ LABEL build_version="Linuxserver.io version:- ${VERSION} Build-date:- ${BUILD_DA
 LABEL maintainer="aptalca"
 
 # environment settings
-ENV S6_BEHAVIOUR_IF_STAGE2_FAILS=2
+ENV \
+  HOME="/app/heimdall" \
+  NODE_ENV="production"
 
 RUN \
- echo "**** install runtime packages ****" && \
- apk add --no-cache --upgrade \
-	curl \
-	php7-ctype \
-	php7-curl \
-	php7-pdo_pgsql \
-	php7-pdo_sqlite \
-	php7-tokenizer \
-	php7-zip \
-	tar && \
- echo "**** install heimdall ****" && \
- mkdir -p \
-	/heimdall && \
- if [ -z ${HEIMDALL_RELEASE+x} ]; then \
-	HEIMDALL_RELEASE=$(curl -sX GET "https://api.github.com/repos/linuxserver/Heimdall/releases/latest" \
-	| awk '/tag_name/{print $4;exit}' FS='[""]'); \
- fi && \
- curl -o \
- /heimdall/heimdall.tar.gz -L \
-	"https://github.com/linuxserver/Heimdall/archive/${HEIMDALL_RELEASE}.tar.gz" && \
- echo "**** cleanup ****" && \
- rm -rf \
-	/tmp/*
+  echo "**** install build packages ****" && \
+  apk add --no-cache --virtual=build-dependencies \
+  	curl \
+  	g++ \
+  	make \
+  	python3 && \
+  echo "**** install runtime packages ****" && \
+  apk add --no-cache \
+    nodejs \
+    npm && \
+  echo "**** install heimdall ****" && \
+  mkdir -p \
+    /app/heimdall && \
+  if [ -z ${HEIMDALL_RELEASE+x} ]; then \
+    HEIMDALL_RELEASE=$(curl -sX GET "https://api.github.com/repos/linuxserver/heimdalljs/commits/master" \
+    | awk '/sha/{print $4;exit}' FS='[""]'); \
+  fi && \
+  curl -o \
+    /tmp/heimdalljs.tar.gz -L \
+    "https://github.com/linuxserver/heimdalljs/archive/${HEIMDALL_RELEASE}.tar.gz" && \
+  tar xf \
+    /tmp/heimdalljs.tar.gz -C \
+    /app/heimdall/ --strip-components=1 && \
+  cd /app/heimdall && \
+  NODE_ENV="development" npm install && \
+  cp .env.example .env && \
+  npm run build && \
+  echo "**** cleanup ****" && \
+  npm prune --production && \
+  apk del --purge \
+    build-dependencies && \
+  rm -rf \
+    /root/.cache \
+    /tmp/*
 
 # add local files
 COPY root/ /