Merge feature branch 'init-scripts'

.drone.yml

@@ -4,6 +4,13 @@ pipeline:
     volumes: [ '/var/run/docker.sock:/var/run/docker.sock' ]
     repo: plex-dev
 
+  test-bin:
+    image: docker
+    volumes: [ '/var/run/docker.sock:/var/run/docker.sock' ]
+    commands:
+      - docker run --rm plex-dev curl --version
+      - docker run --rm plex-dev xmlstarlet --version
+
   test:
     image: spritsail/docker-test
     volumes: [ '/var/run/docker.sock:/var/run/docker.sock' ]
@@ -19,7 +26,7 @@ pipeline:
     image: spritsail/docker-publish
     volumes: [ '/var/run/docker.sock:/var/run/docker.sock' ]
     secrets: [ docker_username, docker_password, microbadger_token ]
-    when: { branch: [ master, pass ], event: [ push, tag, deployment ] }
+    when: { branch: [ master ], event: [ push, tag, deployment ] }
     from: plex-dev
     repo: spritsail/plex-media-server
     tags:

Dockerfile

@@ -2,6 +2,8 @@ ARG PLEX_VER=1.13.5.5291-6fa5e50a8
 ARG PLEX_SHA=0cb4cb011583edb0b26898d2e62253c55fc88bc7
 ARG LIBSTDCPP_VER=6.3.0-18+deb9u1
 ARG LIBGCC1_VER=6.3.0-18+deb9u1
+ARG XMLSTAR_VER=1.6.1
+ARG CURL_VER=curl-7_61_0
 
 FROM spritsail/debian-builder:stretch-slim as builder
 
@@ -9,28 +11,145 @@ ARG PLEX_VER
 ARG PLEX_SHA
 ARG LIBSTDCPP_VER
 ARG LIBGCC1_VER
+ARG LIBXML2_VER=v2.9.8
+ARG LIBXSLT_VER=v1.1.32
+ARG XMLSTAR_VER
+ARG LIBRE_VER=2.7.4
+ARG CURL_VER
 
-WORKDIR /tmp
+ARG MAKEFLAGS=-j4
 
-RUN mkdir -p /output/usr/lib
+RUN apt-get -y update \
+ && apt-get -y install zlib1g-dev
 
-RUN curl -fsSL -o libstdcpp.deb http://ftp.de.debian.org/debian/pool/main/g/gcc-${LIBSTDCPP_VER:0:1}/libstdc++6_${LIBSTDCPP_VER}_amd64.deb \
+# Download and build libxml2
- && curl -fsSL -o libgcc1.deb http://ftp.de.debian.org/debian/pool/main/g/gcc-${LIBGCC1_VER:0:1}/libgcc1_${LIBGCC1_VER}_amd64.deb \
+WORKDIR /tmp/libxml2
- && dpkg-deb -x libstdcpp.deb . \
+RUN git clone https://gitlab.gnome.org/GNOME/libxml2.git --branch $LIBXML2_VER --depth 1 . \
- && dpkg-deb -x libgcc1.deb . \
+ && ./autogen.sh \
- # We only need the lib files, everything else is debian junk.
+        --prefix=/usr \
- && mv $PWD/usr/lib/x86_64-linux-gnu/* /output/usr/lib \
+        --without-catalog \
- # Maybe /lib
+        --without-docbook \
- && mv $PWD/lib/x86_64-linux-gnu/* /output/usr/lib
+        --without-ftp \
+        --without-http \
+        --without-iconv \
+        --without-iso8859x \
+        --without-legacy \
+        --without-modules \
+        --without-python \
+ && make \
+ && make DESTDIR=/prefix install
 
-RUN curl -fsSL -o plexmediaserver.deb https://downloads.plex.tv/plex-media-server/${PLEX_VER}/plexmediaserver_${PLEX_VER}_amd64.deb \
+# Download and build libxslt
+WORKDIR /tmp/libxslt
+RUN git clone https://gitlab.gnome.org/GNOME/libxslt.git --branch $LIBXSLT_VER --depth 1 . \
+ && ./autogen.sh \
+        --prefix=/usr \
+        --with-libxml-src="../libxml2" \
+        --without-crypto \
+        --without-plugins \
+        --without-python \
+ && make \
+ && make DESTDIR=/prefix install
+
+# Download and build xmlstarlet
+ADD xmlstarlet-*.patch /tmp
+WORKDIR /tmp/xmlstarlet
+RUN git clone git://git.code.sf.net/p/xmlstar/code --branch $XMLSTAR_VER --depth 1 . \
+ && git apply /tmp/xmlstarlet*.patch \
+ && autoreconf -sif \
+ && ./configure \
+        --prefix=/usr \
+        --disable-build-docs \
+        --with-libxml-prefix=/prefix/usr \
+        --with-libxslt-prefix=/prefix/usr \
+ && make \
+ && make DESTDIR=/prefix install
+
+# Download and build LibreSSL as a cURL dependency
+WORKDIR /tmp/libressl
+RUN curl -sSL https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-${LIBRE_VER}.tar.gz \
+        | tar xz --strip-components=1 \
+    # Install to the default system directories so cURL can find it
+ && ./configure --prefix=/usr \
+ && make install
+
+# Download and build curl
+WORKDIR /tmp/curl
+RUN git clone https://github.com/curl/curl.git --branch $CURL_VER --depth 1 . \
+ && autoreconf -sif \
+ && ./configure \
+        --prefix=/usr \
+        --enable-ipv6 \
+        --enable-optimize \
+        --enable-symbol-hiding \
+        --enable-versioned-symbols \
+        --enable-threaded-resolver \
+        --with-ssl \
+        --with-zlib \
+        --disable-crypto-auth \
+        --disable-curldebug \
+        --disable-dependency-tracking \
+        --disable-dict \
+        --disable-gopher \
+        --disable-imap \
+        --disable-libcurl-option \
+        --disable-ldap \
+        --disable-ldaps \
+        --disable-manual \
+        --disable-ntlm-wb \
+        --disable-pop3 \
+        --disable-rtsp \
+        --disable-smb \
+        --disable-smtp \
+        --disable-sspi \
+        --disable-telnet \
+        --disable-tftp \
+        --disable-tls-srp \
+        --disable-verbose \
+        --without-axtls \
+        --without-libmetalink \
+        --without-libpsl \
+        --without-librtmp \
+        --without-winidn \
+ && make \
+ && make DESTDIR=/prefix install
+
+WORKDIR /prefix
+
+# Fetch Plex and required libraries
+RUN curl -fsSL http://ftp.de.debian.org/debian/pool/main/g/gcc-${LIBSTDCPP_VER:0:1}/libstdc++6_${LIBSTDCPP_VER}_amd64.deb | dpkg-deb -x - . \
+ && curl -fsSL http://ftp.de.debian.org/debian/pool/main/g/gcc-${LIBGCC1_VER:0:1}/libgcc1_${LIBGCC1_VER}_amd64.deb | dpkg-deb -x - . \
+ && curl -fsSL -o plexmediaserver.deb https://downloads.plex.tv/plex-media-server/${PLEX_VER}/plexmediaserver_${PLEX_VER}_amd64.deb \
+    \
  && echo "$PLEX_SHA  plexmediaserver.deb" | sha1sum -c - \
  && dpkg-deb -x plexmediaserver.deb . \
- && mv usr/lib/plexmediaserver /output/usr/lib
+    \
+ && cd usr/lib/plexmediaserver \
+ && rm -f \
+        "Plex Media Server Tests" \
+        libcrypto.so.1.0.0 \
+        libcurl.so.4 \
+        libssl.so.1.0.0 \
+        libxml2.so.2 \
+        libxslt.so.1 \
+    # Place shared libraries in usr/lib so they can be actually shared
+ && mv *.so* ../
 
+    # Strip all unneeded symbols for optimum size
+RUN find -exec sh -c 'file "{}" | grep -q ELF && strip --strip-debug "{}"' \; \
+    \
+ && mkdir -p /output/usr/lib /output/usr/bin \
+ && mv usr/lib/x86_64-linux-gnu/*.so* \
+       lib/x86_64-linux-gnu/*.so* \
+       usr/lib/plexmediaserver \
+       usr/lib/*.so* \
+       /output/usr/lib \
+ && mv usr/bin/curl /output/usr/bin \
+ && mv usr/bin/xml /output/usr/bin/xmlstarlet
 
-ADD start_pms /output/usr/sbin/start_pms
+ADD entrypoint /output/usr/local/bin/
-RUN chmod +x /output/usr/sbin/start_pms
+ADD *.sh /output/usr/local/bin/
+RUN chmod +x /output/usr/local/bin/*
 
 #=========================
 
@@ -39,6 +158,8 @@ FROM spritsail/libressl
 ARG PLEX_VER
 ARG LIBSTDCPP_VER
 ARG LIBGCC1_VER
+ARG CURL_VER
+ARG XMLSTAR_VER
 
 LABEL maintainer="Spritsail <plex@spritsail.io>" \
       org.label-schema.vendor="Spritsail" \
@@ -47,19 +168,31 @@ LABEL maintainer="Spritsail <plex@spritsail.io>" \
       org.label-schema.description="Tiny Docker image for Plex Media Server, built on busybox" \
       org.label-schema.version=${PLEX_VER} \
       io.spritsail.version.plex=${PLEX_VER} \
+      io.spritsail.version.curl=${CURL_VER} \
+      io.spritsail.version.libgcc1=${LIBGCC1_VER} \
       io.spritsail.version.libstdcpp=${LIBSTDCPP_VER} \
-      io.spritsail.version.libgcc1=${LIBGCC1_VER}
+      io.spritsail.version.xmlstarlet=${XMLSTAR_VER}
 
-ENV SUID=900 SGID=900
+WORKDIR /usr/lib/plexmediaserver
 
 COPY --from=builder /output/ /
 
+ENV SUID=900 SGID=900 \
+    PLEX_MEDIA_SERVER_MAX_PLUGIN_PROCS="6" \
+    PLEX_MEDIA_SERVER_MAX_STACK_SIZE="3000" \
+    PLEX_MEDIA_SERVER_TMPDIR="/tmp" \
+    PLEX_MEDIA_SERVER_HOME="/usr/lib/plexmediaserver" \
+    PLEX_MEDIA_SERVER_APPLICATION_SUPPORT_DIR="/var/lib/plexmediaserver"
+
 HEALTHCHECK --interval=10s --timeout=5s \
     CMD [ "wget", "-O", "/dev/null", "-T", "10", "-q", "localhost:32400/identity" ]
 
-WORKDIR /usr/lib/plexmediaserver
-
 EXPOSE 32400
 
+VOLUME ["/config", "/transcode"]
+
+RUN mkdir -p "$PLEX_MEDIA_SERVER_APPLICATION_SUPPORT_DIR" \
+ && ln -sfv /config "$PLEX_MEDIA_SERVER_APPLICATION_SUPPORT_DIR/Plex Media Server"
+
 ENTRYPOINT ["/sbin/tini", "--"]
-CMD ["/usr/sbin/start_pms"]
+CMD ["/usr/local/bin/entrypoint"]

README.md

@@ -13,12 +13,70 @@
 [![Build Status](https://drone.spritsail.io/api/badges/spritsail/plex-media-server/status.svg)][drone]
 [![Last Build](https://api.spritsail.io/badge/lastbuild/spritsail/plex-media-server:latest)][drone]
 
-The _smallest*_ Plex Media Server docker image, built on barebones [spritsail/busybox](https://hub.docker.com/spritsail/busybox/) with glibc and libraries from source. The container contains a bare minimum glibc dependency tree, with most of the useless crap removed, resulting in the smallest container possible whilst maintaining full functionality.
+The _smallest*_ Plex Media Server docker image, built on barebones [spritsail/busybox](https://hub.docker.com/spritsail/busybox/) with glibc and libraries built from source. The container hosts a fully featured Plex Media Server, with almost all of the useless crap removed, resulting in the smallest container possible whilst maintaining full functionality.
 
 You can find out more about the [spritsail/busybox](https://hub.docker.com/r/spritsail/busybox) base image [here](https://github.com/spritsail/busybox)
 
 _*last we checked_
 
+**NOTICE:** This build has changed the `/config/Plex Media Server` mountpoint inside the container to now be present at `/config`. If you previously used this container, please update your mountpoint to `/config`.
+
 ## Getting Started
 
-_Coming soon.. hopefully_
+Navigate to [plex.tv/claim](https://www.plex.tv/claim) and obtain a token in the form `claim-xxxx...`
+
+Start the container, as demonstrated below, passing the claim token via the `PLEX_CLAIM` environment variable. This only has to be present on the first run (when the configuration is generated) and can be removed for subsequent runs. _The Plex claim token is optional however it will make the server available to your account immediately._
+
+Setting the container hostname on first boot will set the Plex server name.
+
+```shell
+docker run -dt \
+    --name=plex \
+    --restart=unless-stopped \
+    --hostname=my-plex-server \
+    -p 32400:32400 \
+    -e PLEX_CLAIM=claim-xxxx... \
+    -v /config/plex:/config \
+    -v /transcode:/transcode \
+    -v /media:/media \
+    spritsail/plex-media-server
+```
+
+Finally, navigate to [app.plex.tv/desktop](https://app.plex.tv/desktop) or [your-ip:32400/web](http://localhost:32400/web) and you're done!
+
+
+### Volumes
+
+- `/config` - Configuration, logs, caches and other Plex crap. You should keep this
+- `/transcode` - Transcoder temporary directory. This should be backed by fast storage, ideally tmpfs/RAM.
+- Don't forget to mount your media (tv-shows/movies) inside the container too!
+
+### Environment
+
+- `$SUID`                 - User ID to run as _default: 900_
+- `$SGID`                 - Group ID to run as _default: 900_
+- `$ALLOWED_NETWORKS`     - IP/netmask entries which allow access to the server without requiring authorization. We recommend you set this only if you do not sign in your server. For example `192.168.1.0/24,172.16.0.0/16` will allow access to the entire `192.168.1.x` range and the `172.16.x.x` range.
+- `$ADVERTISE_IP`         - This variable defines the additional IPs on which the server may be be found. For example: `http://10.1.1.23:32400`. This adds to the list where the server advertises that it can be found.
+- `$DISABLE_REMOTE_SEC`   - 
+- `$PLEX_CLAIM`           - The claim token for the server to obtain a real server token. If not provided, server will not be automatically logged in. If server is already logged in, this parameter is ignored.
+
+### Network
+
+The following ports are all used by Plex for various applications
+
+- `32400/tcp`       Plex Web/Client Access 
+- `5353/udp`        Bonjour/Avahi
+- `3005/tcp`        Plex Home Theatre via Plex Companion
+- `8324/tcp`        Plex for Roku via Plex Companion
+- `1900/udp`        Plex DLNA Server
+- `32469/udp`       Plex DLNA Server
+- `32410/udp`       GDM network discovery
+- `32412/udp`       GDM network discovery
+- `32413/udp`       GDM network discovery
+- `32414/udp`       GDM network discovery
+
+See also: https://support.plex.tv/articles/201543147-what-network-ports-do-i-need-to-allow-through-my-firewall/
+
+At the very least, you should expose `32400/tcp` to your network, and _port forward_ it through your router if you would like Plex access outside your home network.
+
+If you wish, you can map the Plex port to any other port outside your network, just be sure to update the port in _Settings > Server > Remote Access_ (Show Advanced) under _Manually specify public port_.

entrypoint

@@ -0,0 +1,35 @@
+#!/bin/sh
+set -e
+
+# ANSI colour escape sequences
+RED='\033[0;31m'
+RESET='\033[0m'
+
+if su-exec -e [ ! -w "/config" ]; then
+    2>&1 echo -e "${RED}####################### WARNING #######################${RESET}"
+    2>&1 echo
+    2>&1 echo -e "${RED}     No permission to write in '/config' directory.${RESET}"
+    2>&1 echo -e "${RED}       Correcting permissions to prevent a crash.${RESET}"
+    2>&1 echo
+    2>&1 echo -e "${RED}#######################################################${RESET}"
+
+    chown $SUID:$SGID /config
+    chmod o+rw /config
+fi
+
+exec su-exec -e sh <<EOF
+
+# Generate a default configuration on first run, including some user-specified values
+if [ ! -e "/config/Preferences.xml" ]; then
+    gen-config.sh
+fi
+
+# Duplicate the Plex logs to stdout (docker logs)
+tail -Fn 0 "/config/Logs/Plex Media Server.log" 2>/dev/null &
+
+# Use a random pidfile
+export PLEX_MEDIA_SERVER_PIDFILE="\$(mktemp -ut pms-pid.XXXXXX)"
+
+exec "\$PLEX_MEDIA_SERVER_HOME/Plex Media Server"
+
+EOF

gen-config.sh

@@ -0,0 +1,64 @@
+#!/bin/sh
+set -e
+
+PREF_FILE="${1:-/config/Preferences.xml}"
+
+getPref() {
+    xmlstarlet sel -T -t -m "/Preferences" -v "@$1" -n "${PREF_FILE}"
+}
+setPref() {
+    count="$(xmlstarlet sel -t -v "count(/Preferences/@$1)" "${PREF_FILE}")"
+    if [ $(($count + 0)) -gt 0 ]; then
+        xmlstarlet ed --inplace --update "/Preferences/@$1" -v "$2" "${PREF_FILE}" 2>/dev/null
+    else
+        xmlstarlet ed --inplace --insert "/Preferences"  --type attr -n "$1" -v "$2" "${PREF_FILE}" 2>/dev/null
+    fi
+}
+
+# Create a default config file allowing external access
+echo -e $'<?xml version="1.0" encoding="utf-8"?>\n<Preferences />' > "/config/Preferences.xml"
+
+# Enforced defaults. These can be changed manually afterwards.
+setPref "AcceptedEULA" "1"
+setPref "TranscoderTempDirectory" "/transcode"
+
+# The following below is ripped directly from the official (inferior) Plex container:
+# https://github.com/plexinc/pms-docker/blob/155f00c71b50f94c73ffea0aae16cc61ef957df7/root/etc/cont-init.d/40-plex-first-run
+
+# Setup Server's client identifier
+serial="$(getPref "MachineIdentifier")"
+if [ -z "${serial}" ]; then
+    serial="$(cat /proc/sys/kernel/random/uuid)"
+    setPref "MachineIdentifier" "${serial}"
+fi
+clientId="$(getPref "ProcessedMachineIdentifier")"
+if [ -z "${clientId}" ]; then
+    clientId="$(echo -n "${serial}- Plex Media Server" | sha1sum | cut -b 1-40)"
+    setPref "ProcessedMachineIdentifier" "${clientId}"
+fi
+
+# Get server token and only turn claim token into server token if we have former but not latter.
+token="$(getPref "PlexOnlineToken")"
+if [ ! -z "${PLEX_CLAIM}" ] && [ -z "${token}" ]; then
+    echo "Attempting to obtain server token from claim token"
+    loginInfo="$(curl -X POST \
+        -H 'X-Plex-Client-Identifier: '${clientId} \
+        -H 'X-Plex-Product: Plex Media Server'\
+        -H 'X-Plex-Version: 1.1' \
+        -H 'X-Plex-Provides: server' \
+        -H 'X-Plex-Platform: Linux' \
+        -H 'X-Plex-Platform-Version: 1.0' \
+        -H 'X-Plex-Device-Name: PlexMediaServer' \
+        -H 'X-Plex-Device: Linux' \
+        "https://plex.tv/api/claim/exchange?token=${PLEX_CLAIM}")"
+    token="$(echo "$loginInfo" | sed -n 's/.*<authentication-token>\(.*\)<\/authentication-token>.*/\1/p')"
+
+    if [ "$token" ]; then
+        echo "Token obtained successfully"
+        setPref "PlexOnlineToken" "${token}"
+    fi
+fi
+
+test -n "${ADVERTISE_IP}"       && setPref "customConnections" "${ADVERTISE_IP}"
+test -n "${ALLOWED_NETWORKS}"   && setPref "allowedNetworks" "${ALLOWED_NETWORKS}"
+test -n "${DISABLE_REMOTE_SEC}" && setPref "disableRemoteSecurity" "1"

start_pms

@@ -1,47 +0,0 @@
-#!/bin/sh
-
-# Default values
-export PLEX_MEDIA_SERVER_MAX_PLUGIN_PROCS="${PLEX_MEDIA_SERVER_MAX_PLUGIN_PROCS:-6}"
-export PLEX_MEDIA_SERVER_HOME="${PLEX_MEDIA_SERVER_HOME:-/usr/lib/plexmediaserver}"
-export PLEX_MEDIA_SERVER_MAX_STACK_SIZE="${PLEX_MEDIA_SERVER_MAX_STACK_SIZE:-3000}"
-export PLEX_MEDIA_SERVER_TMPDIR="${PLEX_MEDIA_SERVER_TMPDIR:-/tmp}"
-export PLEX_MEDIA_SERVER_APPLICATION_SUPPORT_DIR="${PLEX_MEDIA_SERVER_APPLICATION_SUPPORT_DIR:-/config}"
-export PLEX_MEDIA_SERVER_CONFIG_DIR="${PLEX_MEDIA_SERVER_APPLICATION_SUPPORT_DIR}/Plex Media Server"
-
-if [ ! -d "$PLEX_MEDIA_SERVER_CONFIG_DIR" ]
-then
-  mkdir -p "$PLEX_MEDIA_SERVER_CONFIG_DIR" && \
-  chown $SUID:$SGID "$PLEX_MEDIA_SERVER_CONFIG_DIR"
-  if [ ! $? -eq 0 ]
-  then
-    echo "WARNING COULDN'T CREATE $PLEX_MEDIA_SERVER_CONFIG_DIR, MAKE SURE I HAVE PERMISSON TO DO THAT!"
-    exit 1
-  fi
-fi
-if su-exec -e [ ! -w "$PLEX_MEDIA_SERVER_CONFIG_DIR" ]
-then
-  echo "ERROR: CANNOT WRITE IN $PLEX_MEDIA_SERVER_CONFIG_DIR, MAKE SURE I HAVE PERMISSION TO DO THAT!"
-  exit 2
-fi
-if [ ! -e "$PLEX_MEDIA_SERVER_CONFIG_DIR/Preferences.xml" ];
-then
-    # Create a default config file allowing external access
-    echo -e '<?xml version="1.0" encoding="utf-8"?>\n<Preferences disableRemoteSecurity="1" />' \
-        >> "$PLEX_MEDIA_SERVER_CONFIG_DIR/Preferences.xml"
-fi
-
-export LD_LIBRARY_PATH="${PLEX_MEDIA_SERVER_HOME}:$LD_LIBRARY_PATH"
-export TMPDIR="${PLEX_MEDIA_SERVER_TMPDIR}"
-
-# Allow Plex group to write to tmpdir
-chgrp $SGID "$TMPDIR"
-chmod g+rwx "$TMPDIR"
-
-PIDFILE="${PLEX_MEDIA_SERVER_CONFIG_DIR}/plexmediaserver.pid"
-if [ -f "$PIDFILE" ]; then
-    rm -f "$PIDFILE"
-fi
-
-tail -F "$PLEX_MEDIA_SERVER_CONFIG_DIR/Logs/Plex Media Server.log" >/proc/1/fd/1 2>/dev/null &
-
-exec su-exec -e "$PLEX_MEDIA_SERVER_HOME/Plex Media Server"

xmlstarlet-0001-Fix-disable-build-docs.patch

@@ -0,0 +1,35 @@
+diff --git a/Makefile.am b/Makefile.am
+index 1f3ba33..56a36b4 100644
+--- a/Makefile.am
++++ b/Makefile.am
+@@ -75,11 +75,6 @@ $(generated_usage_sources) : usage2c.awk
+ # doc
+ include doc/doc.mk
+ 
+-man_MANS = $(manpage)
+-dist_doc_DATA = $(userguide_gen) doc/html.css $(txtguide)
+-EXTRA_DIST += $(manpage_src) $(userguide_src) $(txtguide_src)
+-EXTRA_DIST += $(buildfiles_docs) $(manpage)
+-
+ 
+ CLEANFILES = version.h $(generated_usage_sources)
+ MAINTAINERCLEANFILES = $(manpage) $(userguide_gen) $(txtguide)
+diff --git a/doc/doc.mk b/doc/doc.mk
+index bde1e0e..d4633eb 100644
+--- a/doc/doc.mk
++++ b/doc/doc.mk
+@@ -28,6 +28,11 @@ EDIT_XML = $(XSLTPROC) \
+ 
+ if BUILD_DOCS
+ 
++man_MANS = $(manpage)
++dist_doc_DATA = $(userguide_gen) doc/html.css $(txtguide)
++EXTRA_DIST += $(manpage_src) $(userguide_src) $(txtguide_src)
++EXTRA_DIST += $(buildfiles_docs) $(manpage)
++
+ .xml.html:
+ 	$(V_DOCBOOK)$(EDIT_XML) $< | $(XSLTPROC) $(DOCBOOK_PARAMS) \
+   --stringparam html.stylesheet html.css \
+-- 
+2.18.0
+