docker/postgresrepmgr
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This commit is contained in:
Bernhard Radermacher
2026-02-20 15:07:41 +01:00
parent 8b92839e37
commit 13949096ee
2 changed files with 20 additions and 11 deletions
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5
Dockerfile
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@@ -6,8 +6,9 @@ RUN apt-get update && \
&& \ && \
rm -rf /var/lib/apt/lists/* rm -rf /var/lib/apt/lists/*
COPY --chmod=666 repmgr.conf /etc/repmgr.conf RUN install --verbose --directory --owner postgres --group postgres --mode 1777 /etc/repmgr
VOLUME /etc/repmgr
COPY --chmod=644 --chown=postgres profile /var/lib/postgresql/.profile COPY --chmod=644 --chown=postgres profile /var/lib/postgresql/.profile
# COPY --chmod=755 postgres.sh /usr/local/bin/postgres # COPY --chmod=755 postgres.sh /usr/local/bin/postgres
COPY docker-entrypoint-initdb.d/* /docker-entrypoint-initdb.d/ COPY docker-entrypoint-initdb.d/* /docker-entrypoint-initdb.d/

26
docker-entrypoint-initdb.d/00-main.sh
View File

@@ -27,10 +27,18 @@ create_hba() {
echo "host all all all scram-sha-256" >> /var/lib/postgresql/data/pg_hba.conf echo "host all all all scram-sha-256" >> /var/lib/postgresql/data/pg_hba.conf
} }
echo "node_id = ${REPMGR_NODE_ID}" >> /etc/repmgr.conf echo "node_id = ${REPMGR_NODE_ID}" > /etc/repmgr/repmgr.conf
echo "node_name = ${REPMGR_NODE_NAME}" >> /etc/repmgr.conf echo "node_name = ${REPMGR_NODE_NAME}" >> /etc/repmgr/repmgr.conf
echo "conninfo = 'host=${REPMGR_NODE_NAME} dbname=repmgr user=repmgr connect_timeout=2'" >> /etc/repmgr.conf echo "conninfo = 'host=${REPMGR_NODE_NAME} dbname=repmgr user=repmgr connect_timeout=2'" >> /etc/repmgr/repmgr.conf
echo "location = '${REPMGR_NODE_LOCATION}'" >> /etc/repmgr.conf echo "location = '${REPMGR_NODE_LOCATION}'" >> /etc/repmgr/repmgr.conf
echo "data_directory = '/var/lib/postgresql/data'" >> /etc/repmgr/repmgr.conf
echo "use_replication_slots = on" >> /etc/repmgr/repmgr.conf
echo "pg_bindir = '/usr/lib/postgresql/15/bin/'" >> /etc/repmgr/repmgr.conf
echo "failover = automatic" >> /etc/repmgr/repmgr.conf
echo "promote_command = '/usr/bin/repmgr standby promote -f /etc/repmgr.conf --log-to-file'" >> /etc/repmgr/repmgr.conf
echo "follow_command = '/usr/bin/repmgr standby follow -f /etc/repmgr.conf --log-to-file --upstream-node-id=%n'" >> /etc/repmgr/repmgr.conf
echo "primary_visibility_consensus = on" >> /etc/repmgr/repmgr.conf
if [[ -n $REPMGR_UPSTREAM ]] && [[ -z $REPMGR_NODE_ROLE ]]; then if [[ -n $REPMGR_UPSTREAM ]] && [[ -z $REPMGR_NODE_ROLE ]]; then
REPMGR_NODE_ROLE="standby" REPMGR_NODE_ROLE="standby"
@@ -40,22 +48,22 @@ case "$REPMGR_NODE_ROLE" in
standby ) standby )
docker_temp_server_stop docker_temp_server_stop
rm -rf /var/lib/postgresql/data/* rm -rf /var/lib/postgresql/data/*
until /usr/lib/postgresql/15/bin/repmgr -h $REPMGR_UPSTREAM -U repmgr -f /etc/repmgr.conf standby clone --dry-run &> /dev/null until /usr/lib/postgresql/15/bin/repmgr -h $REPMGR_UPSTREAM -U repmgr -f /etc/repmgr/repmgr.conf standby clone --dry-run &> /dev/null
do do
echo "Upstream host not ready. Waiting for 5 minutes..." echo "Upstream host not ready. Waiting for 5 minutes..."
sleep 300 sleep 300
done done
echo "Upstream host found..." echo "Upstream host found..."
/usr/lib/postgresql/15/bin/repmgr -h $REPMGR_UPSTREAM -U repmgr -f /etc/repmgr.conf standby clone /usr/lib/postgresql/15/bin/repmgr -h $REPMGR_UPSTREAM -U repmgr -f /etc/repmgr/repmgr.conf standby clone
server_start server_start
/usr/lib/postgresql/15/bin/repmgr -f /etc/repmgr.conf standby register /usr/lib/postgresql/15/bin/repmgr -f /etc/repmgr/repmgr.conf standby register
;; ;;
witness ) witness )
create_repmgr create_repmgr
docker_temp_server_stop docker_temp_server_stop
create_hba create_hba
server_start server_start
until /usr/lib/postgresql/15/bin/repmgr -h $REPMGR_UPSTREAM -f /etc/repmgr.conf witness register &> /dev/null until /usr/lib/postgresql/15/bin/repmgr -h $REPMGR_UPSTREAM -f /etc/repmgr/repmgr.conf witness register &> /dev/null
do do
echo "Primary host not ready. Waiting for 5 minutes..." echo "Primary host not ready. Waiting for 5 minutes..."
sleep 300 sleep 300
@@ -75,6 +83,6 @@ case "$REPMGR_NODE_ROLE" in
fi fi
create_hba create_hba
server_start server_start
/usr/lib/postgresql/15/bin/repmgr -f /etc/repmgr.conf primary register /usr/lib/postgresql/15/bin/repmgr -f /etc/repmgr/repmgr.conf primary register
;; ;;
esac esac