docker: reduce image size by using multi-stage

Signed-off-by: Boris Glimcher <Boris.Glimcher@emc.com>

Dockerfile

@@ -1,13 +1,12 @@
-FROM fedora:36
+FROM fedora:36 as base
+RUN dnf install -y python3-dasbus python3-pyudev python3-systemd python3-gobject
 
-WORKDIR /root
-
-# first line for nvme-stas
-# second line for libnvme
-RUN dnf install -y python3-dasbus python3-pyudev python3-systemd python3-gobject meson \
-                   git gcc g++ cmake openssl-devel libuuid-devel json-c-devel swig python-devel meson && dnf clean all
+FROM base as builder
+RUN dnf install -y git gcc g++ cmake openssl-devel libuuid-devel json-c-devel swig python-devel meson
 
 COPY . .
-RUN meson .build && ninja -C .build && meson install -C .build
+RUN meson .build && ninja -C .build && meson install -C .build --destdir=/root/stas-dest
 
+FROM base
+COPY --from=builder /root/stas-dest /root/stas-dest
 ENTRYPOINT ["python3"]

docker-compose.yml

@@ -16,12 +16,16 @@ services:
     environment:
       RUNTIME_DIRECTORY: /run/stafd
       XDG_CACHE_HOME: /var/cache/stafd
+      LD_LIBRARY_PATH: /root/stas-dest/usr/lib64
+      PYTHONPATH: /root/stas-dest/usr/lib64/python3.9/site-packages:/root/stas-dest/usr/lib/python3.9/site-packages
       PYTHONUNBUFFERED: 1
-    command: -u /usr/sbin/stafd
+    command: -u /root/stas-dest/usr/sbin/stafd --tron
   stacd:
     <<: *default-stas
     environment:
       RUNTIME_DIRECTORY: /run/stacd
       XDG_CACHE_HOME: /var/cache/stacd
+      LD_LIBRARY_PATH: /root/stas-dest/usr/lib64
+      PYTHONPATH: /root/stas-dest/usr/lib64/python3.9/site-packages:/root/stas-dest/usr/lib/python3.9/site-packages
       PYTHONUNBUFFERED: 1
-    command: -u /usr/sbin/stacd
+    command: -u /root/stas-dest/usr/sbin/stacd --tron