Add dockerfile for dendrite (#541)

Adds a Dockerfile for Dendrite which prepares postgres and installs the needed dependencies for sytest and dendrite to run.

docker/Dockerfile-dendrite

@@ -0,0 +1,25 @@
+FROM matrixdotorg/sytest:latest
+
+RUN apt-get -qq install -y dos2unix
+
+# PostgreSQL setup
+ENV PGHOST=/var/run/postgresql
+ENV PGDATA=$PGHOST/data
+ENV PGUSER=postgres
+
+# Turn off all the fsync stuff for postgres
+RUN mkdir -p /etc/postgresql/9.6/main/conf.d/
+RUN echo "fync=off" > /etc/postgresql/9.6/main/conf.d/fsync.conf
+RUN echo "full_page_writes=off" >> /etc/postgresql/9.6/main/conf.d/fsync.conf
+
+# Initialise the database files
+RUN su -c '/usr/lib/postgresql/9.6/bin/initdb -E "UTF-8" --lc-collate="en_US.UTF-8" --lc-ctype="en_US.UTF-8" --username=postgres' postgres
+
+# This is where we expect Dendrite to be binded to from the host
+RUN mkdir -p /src
+
+# The dockerfile context, when ran by the buildscript, will actually be the
+# repo root, not the docker folder
+ADD docker/dendrite_sytest.sh /dendrite_sytest.sh
+RUN dos2unix /dendrite_sytest.sh
+ENTRYPOINT ["/dendrite_sytest.sh"]

docker/build.sh

@@ -6,3 +6,4 @@ cd `dirname $0`
 docker build ../ -f Dockerfile -t matrixdotorg/sytest
 docker build ../ -f Dockerfile-synapsepy2 -t matrixdotorg/sytest-synapsepy2
 docker build ../ -f Dockerfile-synapsepy3 -t matrixdotorg/sytest-synapsepy3
+docker build ../ -f Dockerfile-dendrite -t matrixdotorg/sytest-dendrite

docker/dendrite_sytest.sh

@@ -0,0 +1,62 @@
+#! /usr/bin/env bash
+
+set -ex
+
+# Attempt to find a sytest to use.
+# If /test/run-tests.pl exists, it means that a SyTest checkout has been mounted into the Docker image.
+if [ -e "./run-tests.pl" ]
+then
+    # If the user has mounted in a SyTest checkout, use that. We can tell this by files being in the directory.
+    echo "Using local sytests..."
+else
+    # Otherwise, try and find out what the branch that the Dendrite checkout is using. Fall back to develop if it's not a branch.
+    branch_name="$(git --git-dir=/src/.git symbolic-ref HEAD 2>/dev/null)" || branch_name="develop"
+
+    # Try and fetch the branch
+    echo "Trying to get same-named sytest branch..."
+    wget -q https://github.com/matrix-org/sytest/archive/$branch_name.tar.gz -O sytest.tar.gz || {
+        # Probably a 404, fall back to develop
+        echo "Using develop instead..."
+        wget -q https://github.com/matrix-org/sytest/archive/develop.tar.gz -O sytest.tar.gz
+    }
+
+    tar --strip-components=1 -xf sytest.tar.gz
+
+fi
+
+# Make sure all Perl deps are installed -- this is done in the docker build so will only install packages added since the last Docker build
+dos2unix ./install-deps.pl
+./install-deps.pl
+
+# Start the database
+su -c '/usr/lib/postgresql/9.6/bin/pg_ctl -w -D /var/run/postgresql/data start' postgres
+
+# Make the test databases
+su -c "psql -c \"CREATE USER dendrite PASSWORD 'itsasecret'\" postgres"
+su -c 'for i in account device mediaapi syncapi roomserver serverkey federationsender publicroomsapi appservice naffka sytest_template; do psql -c "CREATE DATABASE $i OWNER dendrite;"; done' postgres
+
+# Write dendrite configuration
+mkdir -p "server-0"
+cat > "server-0/database.yaml" << EOF
+args:
+    user: $PGUSER
+    database: $PGUSER
+    host: $PGHOST
+type: pg
+EOF
+
+# Run the tests
+dos2unix ./run-tests.pl
+TEST_STATUS=0
+./run-tests.pl -I Dendrite::Monolith -d /src/bin -W /src/testfile -O tap --all "$@" > results.tap || TEST_STATUS=$?
+
+# Copy out the logs
+mkdir -p /logs
+cp results.tap /logs/results.tap
+rsync --ignore-missing-args -av server-0 server-1 /logs --include "*/" --include="*.log.*" --include="*.log" --exclude="*"
+
+# Write out JUnit for CircleCI
+mkdir -p /logs/sytest
+perl /tap-to-junit-xml.pl --puretap --input=/logs/results.tap --output=/logs/sytest/results.xml "SyTest"
+
+exit $TEST_STATUS