WiP: parallel builds

Signed-off-by: Damien Duportal <[email protected]>

Dockerfile

@@ -1,4 +1,13 @@
-FROM alpine:3.12
+## Using Multistage build for accelarating
+FROM haskell:8 AS erd
+# From https://github.com/BurntSushi/erd/blob/master/Dockerfile
+
+WORKDIR /opt/erd
+
+RUN apt-get update && apt-get install -y graphviz
+RUN cabal v2-update && cabal v2-install erd
+
+FROM alpine:3.12 AS main
 
 LABEL MAINTAINERS="Guillaume Scheibel <[email protected]>, Damien DUPORTAL <[email protected]>"
 
@@ -92,22 +101,24 @@ RUN apk add --no-cache --virtual .pythonmakedepends \
   && apk del -r --no-cache .pythonmakedepends
 
 # ERD
-RUN apk add --no-cache --virtual .haskellmakedepends \
-    alpine-sdk \
-    cabal \
-    ghc-dev \
-    ghc \
-    gmp-dev \
-    gnupg \
-    libffi-dev \
-    linux-headers \
-    perl-utils \
-    wget \
-    xz \
-    zlib-dev \
-  && cabal v2-update \
-  && cabal v2-install erd \
-  && apk del -r --no-cache .haskellmakedepends
+# RUN apk add --no-cache --virtual .haskellmakedepends \
+#     alpine-sdk \
+#     cabal \
+#     ghc-dev \
+#     ghc \
+#     gmp-dev \
+#     gnupg \
+#     libffi-dev \
+#     linux-headers \
+#     perl-utils \
+#     wget \
+#     xz \
+#     zlib-dev \
+#   && cabal v2-update \
+#   && cabal v2-install erd \
+#   && apk del -r --no-cache .haskellmakedepends
+
+COPY --from=erd /opt/erd /root/
 
 WORKDIR /documents
 VOLUME /documents