add option for witness
This commit is contained in:
Bernhard Radermacher
@@ -6,8 +6,7 @@ RUN apt-get update && \
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&& \
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&& \
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rm -rf /var/lib/apt/lists/*
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rm -rf /var/lib/apt/lists/*
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RUN touch /etc/repmgr.conf && chmod 666 /etc/repmgr.conf
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COPY --chmod=666 repmgr.conf /etc/repmgr.conf
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COPY --chmod=644 --chown=postgres profile /var/lib/postgresql/.profile
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COPY profile /var/lib/postgresql/.profile
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COPY docker-entrypoint-initdb.d/* /docker-entrypoint-initdb.d/
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COPY docker-entrypoint-initdb.d/* /docker-entrypoint-initdb.d/
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@@ -10,72 +10,58 @@ server_start() {
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-w start
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-w start
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}
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}
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# the variable UPSTREAM indicates that a standby instance is requested, otherwise this is primary
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echo "node_id = ${REPMGR_NODE_ID}" >> /etc/repmgr.conf
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if [[ -z $REPMGR_UPSTREAM ]]; then
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echo "node_name = ${REPMGR_NODE_NAME}" >> /etc/repmgr.conf
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echo "conninfo = 'host=${REPMGR_NODE_NAME} dbname=repmgr user=repmgr connect_timeout=2'" >> /etc/repmgr.conf
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psql -c "CREATE USER repmgr WITH SUPERUSER ENCRYPTED PASSWORD '${REPMGR_PASSWORD}';"
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echo "location = '${REPMGR_NODE_LOCATION}'" >> /etc/repmgr.conf
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psql -c "CREATE DATABASE repmgr WITH OWNER repmgr;"
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psql -c 'ALTER USER repmgr SET search_path TO repmgr, "$user", public;'
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docker_temp_server_stop
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echo "archive_command = '/bin/true'" >> /var/lib/postgresql/data/postgresql.conf
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echo "archive_mode = on" >> /var/lib/postgresql/data/postgresql.conf
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echo "hot_standby = on" >> /var/lib/postgresql/data/postgresql.conf
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echo "max_wal_senders = 10" >> /var/lib/postgresql/data/postgresql.conf
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echo "max_replication_slots = 10" >> /var/lib/postgresql/data/postgresql.conf
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echo "local all all trust" > /var/lib/postgresql/data/pg_hba.conf
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echo "local replication repmgr trust" >> /var/lib/postgresql/data/pg_hba.conf
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echo "host replication repmgr 127.0.0.1/32 trust" >> /var/lib/postgresql/data/pg_hba.conf
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echo "host replication repmgr ${POSTGRES_NETWORK-100.64.0.0/10} trust" >> /var/lib/postgresql/data/pg_hba.conf
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echo "local repmgr repmgr trust" >> /var/lib/postgresql/data/pg_hba.conf
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echo "host repmgr repmgr 127.0.0.1/32 trust" >> /var/lib/postgresql/data/pg_hba.conf
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echo "host repmgr repmgr ${POSTGRES_NETWORK-100.64.0.0/10} trust" >> /var/lib/postgresql/data/pg_hba.conf
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echo "host all all all scram-sha-256" >> /var/lib/postgresql/data/pg_hba.conf
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echo "node_id = ${REPMGR_NODE_ID}" >> /etc/repmgr.conf
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echo "node_name = ${REPMGR_NODE_NAME}" >> /etc/repmgr.conf
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echo "conninfo = 'host=${REPMGR_NODE_NAME} dbname=repmgr user=repmgr connect_timeout=2'" >> /etc/repmgr.conf
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echo "location = '${REPMGR_NODE_LOCATION}'" >> /etc/repmgr.conf
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echo "data_directory = '/var/lib/postgresql/data'" >> /etc/repmgr.conf
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echo "use_replication_slots = on" >> /etc/repmgr.conf
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echo "pg_bindir = '/usr/lib/postgresql/15/bin/'" >> /etc/repmgr.conf
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# process selected tweaks
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if [[ -n $POSTGRES_MAX_CONNECTIONS ]]; then
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echo "max_connections = ${POSTGRES_MAX_CONNECTIONS}" >> /var/lib/postgresql/data/postgresql.conf
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fi
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server_start
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/usr/lib/postgresql/15/bin/repmgr -f /etc/repmgr.conf primary register
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else
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# this is a standby
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docker_temp_server_stop
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rm -rf /var/lib/postgresql/data/*
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echo "node_id = ${REPMGR_NODE_ID}" >> /etc/repmgr.conf
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echo "node_name = ${REPMGR_NODE_NAME}" >> /etc/repmgr.conf
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echo "conninfo = 'host=${REPMGR_NODE_NAME} dbname=repmgr user=repmgr connect_timeout=2'" >> /etc/repmgr.conf
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echo "location = '${REPMGR_NODE_LOCATION}'" >> /etc/repmgr.conf
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echo "data_directory = '/var/lib/postgresql/data'" >> /etc/repmgr.conf
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echo "use_replication_slots = on" >> /etc/repmgr.conf
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echo "pg_bindir = '/usr/lib/postgresql/15/bin/'" >> /etc/repmgr.conf
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until /usr/lib/postgresql/15/bin/repmgr -h $REPMGR_UPSTREAM -U repmgr -f /etc/repmgr.conf standby clone --dry-run &> /dev/null
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do
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echo "Upstream host not ready. Waiting for 5 minutes..."
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sleep 300
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done
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echo "Upstream host found..."
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/usr/lib/postgresql/15/bin/repmgr -h $REPMGR_UPSTREAM -U repmgr -f /etc/repmgr.conf standby clone
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server_start
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/usr/lib/postgresql/15/bin/repmgr -f /etc/repmgr.conf standby register
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if [[ -n $REPMGR_UPSTREAM ]] && [[ -z $REPMGR_ROLE ]]; then
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REPMGR_ROLE="standby"
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fi
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fi
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case "$REPMGR_ROLE" in
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standby )
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docker_temp_server_stop
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rm -rf /var/lib/postgresql/data/*
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until /usr/lib/postgresql/15/bin/repmgr -h $REPMGR_UPSTREAM -U repmgr -f /etc/repmgr.conf standby clone --dry-run &> /dev/null
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do
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echo "Upstream host not ready. Waiting for 5 minutes..."
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sleep 300
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done
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echo "Upstream host found..."
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/usr/lib/postgresql/15/bin/repmgr -h $REPMGR_UPSTREAM -U repmgr -f /etc/repmgr.conf standby clone
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server_start
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/usr/lib/postgresql/15/bin/repmgr -f /etc/repmgr.conf standby register
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;;
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witness )
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until /usr/lib/postgresql/15/bin/repmgr -h $REPMGR_UPSTREAM -f /etc/repmgr.conf witness register &> /dev/null
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do
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echo "Primary host not ready. Waiting for 5 minutes..."
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sleep 300
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done
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;;
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* )
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psql -c "CREATE USER repmgr WITH SUPERUSER ENCRYPTED PASSWORD '${REPMGR_PASSWORD}';"
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psql -c "CREATE DATABASE repmgr WITH OWNER repmgr;"
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psql -c 'ALTER USER repmgr SET search_path TO repmgr, "$user", public;'
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docker_temp_server_stop
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echo "archive_command = '/bin/true'" >> /var/lib/postgresql/data/postgresql.conf
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echo "archive_mode = on" >> /var/lib/postgresql/data/postgresql.conf
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echo "hot_standby = on" >> /var/lib/postgresql/data/postgresql.conf
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echo "max_wal_senders = 10" >> /var/lib/postgresql/data/postgresql.conf
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echo "max_replication_slots = 10" >> /var/lib/postgresql/data/postgresql.conf
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if [[ -n $POSTGRES_MAX_CONNECTIONS ]]; then
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echo "max_connections = ${POSTGRES_MAX_CONNECTIONS}" >> /var/lib/postgresql/data/postgresql.conf
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fi
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echo "local all all trust" > /var/lib/postgresql/data/pg_hba.conf
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echo "local replication repmgr trust" >> /var/lib/postgresql/data/pg_hba.conf
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echo "host replication repmgr 127.0.0.1/32 trust" >> /var/lib/postgresql/data/pg_hba.conf
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echo "host replication repmgr ${POSTGRES_NETWORK-100.64.0.0/10} trust" >> /var/lib/postgresql/data/pg_hba.conf
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echo "local repmgr repmgr trust" >> /var/lib/postgresql/data/pg_hba.conf
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echo "host repmgr repmgr 127.0.0.1/32 trust" >> /var/lib/postgresql/data/pg_hba.conf
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echo "host repmgr repmgr ${POSTGRES_NETWORK-100.64.0.0/10} trust" >> /var/lib/postgresql/data/pg_hba.conf
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echo "host all all all scram-sha-256" >> /var/lib/postgresql/data/pg_hba.conf
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server_start
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/usr/lib/postgresql/15/bin/repmgr -f /etc/repmgr.conf primary register
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;;
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esac
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3
repmgr.conf
Normal file
3
repmgr.conf
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@@ -0,0 +1,3 @@
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data_directory = '/var/lib/postgresql/data'
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use_replication_slots = on
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pg_bindir = '/usr/lib/postgresql/15/bin/'
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