Add Patroni updates for static_primary support

Dockerfile

@@ -143,7 +143,13 @@ RUN for postgisv in ${POSTGIS_VERSIONS}; do \
 # Patroni and Spilo Dependencies
 # This need to be done after the PostgreSQL packages have been installed,
 # to ensure we have the preferred libpq installations etc.
-RUN apt-get install -y patroni
+RUN apt-get install -y patroni=2.1.3-\* && \
+    # Patch Patroni code with changes from https://github.com/timescale/patroni/pull/1
+    # NOTE: This is a temporary solution until changes land upstream.
+    wget -qO- https://raw.githubusercontent.com/timescale/patroni/v2.2.0-beta.1/patroni/ha.py > /usr/lib/python3/dist-packages/patroni/ha.py && \
+    wget -qO- https://raw.githubusercontent.com/timescale/patroni/v2.2.0-beta.1/patroni/config.py > /usr/lib/python3/dist-packages/patroni/config.py && \
+    wget -qO- https://raw.githubusercontent.com/timescale/patroni/v2.2.0-beta.1/patroni/validator.py > /usr/lib/python3/dist-packages/patroni/validator.py
+
 
 RUN for file in $(find /usr/share/postgresql -name 'postgresql.conf.sample'); do \
         # We want timescaledb to be loaded in this image by every created cluster