dockerfile: update to f39, modernize

Dockerfile

@@ -1,62 +1,48 @@
-# based on 'CM2Walki/steamcmd'
+# first image, simply get/unpack the steamcmd tarball
-# modified for a more familiar/up-to-date base (fedora+test run)
+FROM fedora:39 as builder
-
-FROM fedora:35
 LABEL maintainer="me@jlay.io" \
 	org.opencontainers.image.authors="me@jlay.io"
+WORKDIR /root
+RUN curl -sq http://media.steampowered.com/installer/steamcmd_linux.tar.gz | tar -xvz
 
-# site customizations below, change as necessary (eg: to match Docker volume host UID/GID owners)
+# second/real image: copy the unpacked tarball into an updated/prepared Fedora environment
-ARG PUID=1001
+FROM fedora:39
-ARG PGID=1002
+LABEL maintainer="me@jlay.io" \
-
+	org.opencontainers.image.authors="me@jlay.io"
-# set the user, homedir, and steamcmd directories as (env) variables
+ENV PATH="/opt/steamcmd:${PATH}"
-ENV USER steam
-ENV HOMEDIR "/home/${USER}"
-ENV STEAMCMDDIR "${HOMEDIR}/steamcmd"
 
 # Install, update & upgrade packages
-# Create user for the server
+RUN set -x ; \
-# This also creates the home directory we later need
+        mkdir -vp /opt/steamcmd/linux32 ; \
-# Clean TMP, dnf cache and other stuff to make the image smaller
+        sed -i -e 's/^LANG=".*"$/LANG="en_US.UTF-8"/' /etc/locale.conf ; \
-# Create Directory for SteamCMD
+        (echo -e 'max_parallel_downloads=20\nfastestmirror=False\ndeltarpm=False' | tee -a /etc/dnf/dnf.conf) ; \
-# Download SteamCMD
+        dnf --setopt=logdir=/tmp/dnf-prep-logs --setopt=cachedir=/tmp/dnf-prep-cache -qy up ; \
-# Extract and delete archive
+        dnf --setopt=logdir=/tmp/dnf-prep-logs --setopt=cachedir=/tmp/dnf-prep-cache -qy install \
-# Run steamcmd once to test things out/let it update
+                util-linux \
-#
+                ca-certificates \
-# NOTE: steamcmd doesn't appreciate the 'upstream' LANG:
+                libgcc.{x86_64,i686} \
-# WARNING: setlocale('en_US.UTF-8') failed, using locale: 'C'. International characters may not work.
+                libstdc++.{x86_64,i686} \
-# may drop this.
+                glibc.{x86_64,i686} \
-RUN set -x \
+                SDL2.{x86_64,i686} \
-	&& sed -i -e 's/^LANG=".*"$/LANG="en_US.UTF-8"/' /etc/locale.conf \
+                glibc-langpack-en ; \
-	&& echo -e 'max_parallel_downloads=20\nfastestmirror=False\ndeltarpm=False\n' | tee -a /etc/dnf/dnf.conf \
+        find /tmp/dnf-prep-logs /tmp/dnf-prep-cache -delete
-	&& dnf install -qy \
-		util-linux \
-		findutils \
-		wget \
-		ca-certificates \
-		vim \
-		less \
-		curl \
-		libstdc++.{x86_64,i686} \
-		libgcc.{x86_64,i686} \
-		glibc.{x86_64,i686} \
-		SDL2.{x86_64,i686} \
-	&& dnf -qy up \
-	&& dnf clean all \
-	&& useradd -u "${PUID}" -m "${USER}" \
-	&& su "${USER}" -c \
-                "mkdir -p \"${STEAMCMDDIR}\" \
-                && wget -qO- 'https://steamcdn-a.akamaihd.net/client/installer/steamcmd_linux.tar.gz' | tar xvzf - -C \"${STEAMCMDDIR}\" \
-                && \"./${STEAMCMDDIR}/steamcmd.sh\" +quit \
-                && mkdir -p \"${HOMEDIR}/.steam/sdk32\" \
-                && ln -s \"${STEAMCMDDIR}/linux32/steamclient.so\" \"${HOMEDIR}/.steam/sdk32/steamclient.so\" \
-                && ln -s \"${STEAMCMDDIR}/linux32/steamcmd\" \"${STEAMCMDDIR}/linux32/steam\" \
-                && ln -s \"${STEAMCMDDIR}/steamcmd.sh\" \"${STEAMCMDDIR}/steam.sh\"" \
-		&& echo -e "#\!/bin/bash\npushd ${STEAMCMDDIR}\n./steamcmd.sh\npopd" | tee -a /usr/local/bin/steamcmd \
-		&& chmod -v +x /usr/local/bin/steamcmd \
-	&& ln -s "${STEAMCMDDIR}/linux64/steamclient.so" "/usr/lib64/steamclient.so" \
-	&& ${STEAMCMDDIR}/steamcmd.sh +quit
 
-WORKDIR ${STEAMCMDDIR}
+# from the builder, copy the extracted steamcmd bits
+# COPY doesn't take directories with it, only their contents. so dumb.
+COPY --from=builder /root/steam*.sh /opt/steamcmd
+COPY --from=builder /root/linux32/* /opt/steamcmd/linux32/
 
-VOLUME ${STEAMCMDDIR}
+# Make the Steam libraries permanently part of the environment
+# for those who this inspires, a note:
+#   I would only recommend this *in containers*.
+#   it's remarkably easy to break loosely-linked software like this.
+RUN echo '/opt/steamcmd/linux32' | tee /etc/ld.so.conf.d/steam.conf ; ldconfig ; \
+        ln -sv /opt/steamcmd/linux32/steam{client,service}.so
+# also, map steamclient.so -> steamservice.so. this silences some complaints
+
+# test steamcmd; ensure function and updates
+RUN steamcmd.sh +quit
+
+# default cmd, steamcmd 'installed' to /opt. required extending $PATH in env above
+ENTRYPOINT ["steamcmd.sh"]
+CMD ["+help", ""+quit"]

build-image-files.sh

@@ -7,14 +7,14 @@ BUILD_TAG="fedora-${BASE_TAG}-${NOW}"
 IMAGE_FILE="steamcmd-${BUILD_TAG}.img"
 
 echo "Building image steamcmd:${BUILD_TAG}"
-podman build --tag steamcmd:${BUILD_TAG} .
+podman build --tag steamcmd:"${BUILD_TAG}" .
-podman save localhost/steamcmd:${BUILD_TAG} > ${IMAGE_FILE}
+podman save localhost/steamcmd:"${BUILD_TAG}" > "${IMAGE_FILE}"
 echo ""
 echo "Wrote ${IMAGE_FILE}, cleaning up"
-podman rmi steamcmd:${BUILD_TAG}
+podman rmi steamcmd:"${BUILD_TAG}"
 echo ""
 echo "Attempting to compress the image (begin comforting music)"
-xz --keep --compress -9 --extreme --threads=$(nproc) ${IMAGE_FILE}
+xz --keep --compress -9 --extreme --threads="$(nproc)" "${IMAGE_FILE}"
 echo ""
 echo "Finished, (non)compressed images created:"
-ls --color=auto -lah ${IMAGE_FILE}*
+ls --color=auto -lah "${IMAGE_FILE}"*