Dockerfile: add tirex (alternative renderd implementation)

Implements issue67

Dockerfile

@@ -7,6 +7,7 @@ FROM ubuntu:18.04
 ENV TZ=UTC
 ENV AUTOVACUUM=on
 ENV UPDATES=disabled
+ENV RENDERERAPP=renderd
 RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
 
 # Install dependencies
@@ -68,9 +69,11 @@ RUN echo "deb [ allow-insecure=yes ] http://apt.postgresql.org/pub/repos/apt/ bi
   osmium-tool \
   cron \
   python3-psycopg2 python3-shapely python3-lxml \
+  libipc-sharelite-perl libjson-perl libgd-gd2-perl libwww-perl devscripts \
+  nano mc psmisc \
 && apt-get clean autoclean \
 && apt-get autoremove --yes \
-&& rm -rf /var/lib/{apt,dpkg,cache,log}/
+&& rm -rf /var/lib/{apt,dpkg,cache,log}
 
 # Set up renderer user
 RUN adduser --disabled-password --gecos "" renderer
@@ -165,6 +168,41 @@ RUN cd ~/src \
     && git checkout 612fe3e040d8bb70d2ab3b133f3b2cfc6c940520 \
     && chmod u+x ~/src/regional/trim_osc.py
 
+# clone, build and install tirex
+# according to fpllowing wiki article:
+#   https://wiki.openstreetmap.org/wiki/Tirex/Building_and_Installing
+USER renderer
+WORKDIR /home/renderer/src
+RUN git clone https://github.com/openstreetmap/tirex.git \
+ && git -C tirex checkout v0.6.1
+WORKDIR /home/renderer/src/tirex
+RUN make
+
+USER root
+RUN make install
+RUN  mkdir /var/lib/tirex \
+  && mkdir /var/log/tirex \
+  && mkdir /var/run/tirex \
+  && mkdir /var/lib/mod_tile/ajx \
+  && chown renderer:renderer /var/lib/tirex \
+  && chown renderer:renderer /var/run/tirex \
+  && chown renderer:renderer /var/log/tirex \
+  && chown renderer /var/lib/mod_tile/ajx
+
+COPY ajt.conf /etc/tirex/renderer/mapnik/
+COPY mapnik.conf /etc/tirex/renderer/
+COPY tirex.conf /etc/tirex/tirex.conf
+
+RUN ln -s /var/lib/mod_tile  /var/lib/tirex/tiles
+
+# remove not required tirex sample renderer and maps
+RUN  rm -fr /etc/tirex/renderer/openseamap \
+	&& rm -fr /etc/tirex/renderer/wms \
+	&& rm -fr /etc/tirex/renderer/mapserver \
+	&& rm -fr /etc/tirex/renderer/openseamap.conf \
+	&& rm -fr /etc/tirex/renderer/wms.conf \
+	&& rm -fr /etc/tirex/renderer/mapserver.conf
+
 # Start running
 USER root
 COPY run.sh /

ajt.conf

@@ -0,0 +1,10 @@
+# symbolic name
+name=ajt
+
+#tile directoryS
+tiledir=/var/lib/mod_tile/ajt
+minz=0
+maxz=18
+mapfile=/home/renderer/src/openstreetmap-carto/mapnik.xml
+scalefactor=1.0
+tilesize=256

mapnik.conf

@@ -0,0 +1,50 @@
+#-----------------------------------------------------------------------------
+#
+#  Konfiguration for Mapnik renderer
+#
+#  /etc/tirex/renderer/mapnik.conf
+#
+#-----------------------------------------------------------------------------
+
+#-----------------------------------------------------------------------------
+#  General configuration
+#-----------------------------------------------------------------------------
+
+#  symbolic name
+name=mapnik
+
+#  path to executable of renderer
+path=/usr/lib/tirex/backends/mapnik
+
+#  UDP port where the master can contact this renderer
+#  must be individual for each renderer
+port=9331
+
+#  number of processes that should be started
+procs=4
+
+#  syslog facility
+#syslog_facility=daemon
+
+#  activate this to see debug messages from renderer
+debug=1
+
+#-----------------------------------------------------------------------------
+#  Backend specific configuration
+#-----------------------------------------------------------------------------
+
+#  Directory with input plugins for mapnik.
+plugindir=/usr/lib/mapnik/3.0/input
+
+#  The directory where the Mapnik rendering engine loads its TrueType fonts from.
+#  If the style sheet references fonts that are not present here, the renderer will
+#  throw an exception.
+# fontdir=/usr/lib/mapnik/fonts
+fontdir=/usr/share/fonts/
+fontdir_recurse=1
+
+#  Set this to 1 if you want fonts loaded recursively from directories
+#  inside the mapnik_fontdir directory. Defaults to 0.
+#fontdir_recurse=0
+
+#-- THE END ------------------------------------------------------------------

tirex.conf

@@ -0,0 +1,89 @@
+#-----------------------------------------------------------------------------
+#
+#  /etc/tirex/tirex.conf
+#
+#  Configuration file for the Tirex tile rendering system.
+#
+#-----------------------------------------------------------------------------
+
+#  Directory where statistics are stored
+#stats_dir=/var/lib/tirex/stats
+
+#  How many rows and columns of tiles are there in a metatile.
+#metatile_rows=8
+#metatile_columns=8
+
+#  The name of the UNIX domain socket for communicating with ModTile.
+#modtile_socket_name=/var/lib/tirex/modtile.sock
+modtile_socket_name=/var/run/renderd/renderd.sock
+
+
+#  Directory where UNIX domain sockets are created
+#socket_dir=/var/run/tirex
+
+#-----------------------------------------------------------------------------
+#  MASTER
+#-----------------------------------------------------------------------------
+
+#  The master writes its process ID into this file.
+#master_pidfile=/var/run/tirex/tirex-master.pid
+
+#  Syslog facility used in tirex-master.
+#master_syslog_facility=daemon
+
+#  Logfile where all rendered jobs are logged.
+#master_logfile=/var/log/tirex/jobs.log
+
+#  If the rendering of a metatile takes more than this many minutes the master
+#  gives up on it and removes the job from the list of currently rendering tiles.
+#  This must be larger than backend_manager_alive_timeout and should be larger than
+#  the rendering of any tile can need. Its only used to make sure that a
+#  rendering process that is long gone doesn't take up resources forever.
+#master_rendering_timeout=10
+
+#  Buckets for different priorities.
+bucket name=live       minprio=1  maxproc=4 maxload=20
+bucket name=important  minprio=10 maxproc=3 maxload=8
+bucket name=background minprio=20 maxproc=2 maxload=4
+
+#-----------------------------------------------------------------------------
+#  BACKEND-MANAGER
+#-----------------------------------------------------------------------------
+
+#  The tirex-backend-manager writes its process ID into this file
+#backend_manager_pidfile=/var/run/tirex/tirex-backend-manager.pid
+
+#  Syslog facility used by tirex-backend-manager
+#backend_manager_syslog_facility=daemon
+
+#  If a rendering process doesn't send an alive message in this many minutes
+#  to the backend-manager, it will be killed by the manager. Make this smaller
+#  than master_rendering_timeout.
+#backend_manager_alive_timeout=8
+
+#-----------------------------------------------------------------------------
+#  SYNCD
+#-----------------------------------------------------------------------------
+
+#  The syncd process writes its process ID into this file
+#syncd_pidfile=/var/run/tirex/tirex-syncd.pid
+
+#  If this is defined, the syncd will copy rendered tiles to this server.
+#  A comma-separated list is allowed.
+#sync_to_host=some.other.host,yet.another.host
+
+#  UDP port where the syncd listens for messages from master.
+#syncd_udp_port=9323
+
+#  Number of seconds syncd will sleep after doing something, to allow
+#  some tiles to collect in the replication queue. This queue is simply
+#  the UDP packet buffer of the local OS. If this number is larger than
+#  10 or 20 seconds then there's a danger of replications being dropped
+#syncd_aggregate_delay=5
+
+#  command to execute for replicating the space-separated list of files
+#  %FILES% to host %HOST%. By default uses a ssh connection with a
+#  persistent control connection that will be re-created on demand.
+#syncd_command=tar -C/ -cf - %FILES% | ssh %HOST% -oControlMaster=auto -oControlPersist=1h -oControlPath=/var/run/tirex/ssh-control-%h-%r-%p -Tq "tar -C/ -xf -"
+
+#-- THE END ------------------------------------------------------------------