From 64f0c69933f67a5f78c14b30169c9310fc78bd4a Mon Sep 17 00:00:00 2001
From: Florian Dold <florian@dold.me>
Date: Wed, 5 Jul 2023 19:07:30 +0200
Subject: sandcastle: structure base image with stages

---
 sandcastle/images/base/Dockerfile | 51 +++++++++++++++++++++++----------------
 1 file changed, 30 insertions(+), 21 deletions(-)

diff --git a/sandcastle/images/base/Dockerfile b/sandcastle/images/base/Dockerfile
index 6d687f6..414445d 100644
--- a/sandcastle/images/base/Dockerfile
+++ b/sandcastle/images/base/Dockerfile
@@ -1,4 +1,4 @@
-FROM debian:bookworm
+FROM debian:bookworm as base-system
 RUN apt-get update
 
 RUN apt-get install -y \
@@ -44,35 +44,27 @@ RUN apt-get install -y \
 # a venv or per-user installation of the package.
 RUN pip3 install --break-system-packages requests click poetry uwsgi htmlark
 
+FROM base-system as mhd
 COPY buildconfig/tags.sh tags.sh
-
 RUN . /tags.sh && git clone git://git.gnunet.org/libmicrohttpd \
   --branch ${TAG_LIBMHD:-master}
-RUN . /tags.sh && git clone git://git.gnunet.org/gnunet \
-  --branch ${TAG_GNUNET:-master}
-RUN . /tags.sh && git clone git://git.taler.net/exchange \
-  --branch ${TAG_EXCHANGE:-master}
-RUN . /tags.sh && git clone git://git.taler.net/merchant \
-  --branch ${TAG_MERCHANT:-master}
-RUN . /tags.sh && git clone git://git.taler.net/libeufin \
-  --branch ${TAG_LIBEUFIN:-master}
-RUN . /tags.sh && git clone git://git.taler.net/taler-merchant-demos \
-  --branch ${TAG_MERCHANT_DEMOS:-master}
-RUN . /tags.sh && git clone git://git.taler.net/wallet-core \
-  --branch ${TAG_WALLET:-master}
-RUN . /tags.sh && git clone git://git.taler.net/sync \
-  --branch ${TAG_SYNC:-master}
-
 WORKDIR /libmicrohttpd
 RUN ./bootstrap
 RUN ./configure --disable-doc
 RUN make install
 
+FROM mhd AS gnunet
+RUN . /tags.sh && git clone git://git.gnunet.org/gnunet \
+  --branch ${TAG_GNUNET:-master}
 WORKDIR /gnunet
 RUN ./bootstrap
 RUN ./configure --enable-logging=verbose --disable-documentation
 RUN make install
+WORKDIR /
 
+FROM gnunet AS exchange
+RUN . /tags.sh && git clone git://git.taler.net/exchange \
+  --branch ${TAG_EXCHANGE:-master}
 WORKDIR /exchange
 RUN if . /tags.sh && test "${TAG_EXCHANGE:-}" = "v0.9.0"; then \
   # Init Gana and checkout the v0.9.0-compatible commit.
@@ -88,43 +80,60 @@ fi
 RUN ./bootstrap
 RUN ./configure CFLAGS="-ggdb -O0" --enable-logging=verbose --disable-doc
 RUN make install
+WORKDIR /
 
+FROM exchange AS merchant
+RUN . /tags.sh && git clone git://git.taler.net/merchant \
+  --branch ${TAG_MERCHANT:-master}
 WORKDIR /merchant
 RUN ./bootstrap
 RUN ./configure CFLAGS="-ggdb -O0" \
   --enable-logging=verbose \
   --disable-doc
 RUN make install
+WORKDIR /
 
+FROM base-system AS libeufin
+RUN . /tags.sh && git clone git://git.taler.net/libeufin \
+  --branch ${TAG_LIBEUFIN:-master}
 WORKDIR /libeufin
 RUN ./bootstrap
 RUN ./configure
 RUN make install
+WORKDIR /
 
+FROM base-system AS taler-merchant-demos
+RUN . /tags.sh && git clone git://git.taler.net/taler-merchant-demos \
+  --branch ${TAG_MERCHANT_DEMOS:-master}
 WORKDIR /taler-merchant-demos
 RUN ./bootstrap
 RUN ./configure
 RUN make install
+WORKDIR /
 
+FROM base-system AS wallet-core
+RUN . /tags.sh && git clone git://git.taler.net/wallet-core \
+  --branch ${TAG_WALLET:-master}
 RUN npm install -g pnpm@^7.0.0
-
 WORKDIR /wallet-core
 RUN ./bootstrap
-
 WORKDIR ./packages/demobank-ui
 RUN ./configure
 RUN make install
-
 # Install CLI to provide integration tests.
 WORKDIR ../taler-wallet-cli
 RUN ./configure
 RUN make install
+WORKDIR /
+
+FROM exchange AS sync
 
+RUN . /tags.sh && git clone git://git.taler.net/sync \
+  --branch ${TAG_SYNC:-master}
 WORKDIR /sync
 RUN ./bootstrap
 RUN ./configure CFLAGS="-ggdb -O0" \
   --enable-logging=verbose \
   --disable-doc
 RUN make install
-
 WORKDIR /
-- 
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