kopia lustrzana https://github.com/kartoza/docker-postgis
70 wiersze
1.9 KiB
Bash
Executable File
70 wiersze
1.9 KiB
Bash
Executable File
#!/usr/bin/env bash
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source /scripts/env-data.sh
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# This script will setup slave instance to use standby replication
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# Adapted from https://github.com/DanielDent/docker-postgres-replication
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# To set up replication
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create_dir ${WAL_ARCHIVE}
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chown -R postgres:postgres ${DATADIR} ${WAL_ARCHIVE}
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chmod -R 750 ${DATADIR} ${WAL_ARCHIVE}
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function configure_replication_permissions {
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echo "Setup data permissions"
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echo "----------------------"
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chown -R postgres:postgres $(getent passwd postgres | cut -d: -f6)
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su - postgres -c "echo \"${REPLICATE_FROM}:${REPLICATE_PORT}:*:${REPLICATION_USER}:${REPLICATION_PASS}\" > ~/.pgpass"
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su - postgres -c "chmod 0600 ~/.pgpass"
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}
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function streaming_replication {
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until su - postgres -c "${PG_BASEBACKUP} -X stream -h ${REPLICATE_FROM} -p ${REPLICATE_PORT} -D ${DATADIR} -U ${REPLICATION_USER} -R -vP -w --label=gis_pg_custer"
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do
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echo "Waiting for master to connect..."
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sleep 1s
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if [[ "$(ls -A ${DATADIR})" ]]; then
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echo "Need empty folder. Cleaning directory..."
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rm -rf ${DATADIR}/*
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fi
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done
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}
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if [[ "$WAL_LEVEL" == 'replica' && "${REPLICATION}" =~ [Tt][Rr][Uu][Ee] ]]; then
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# No content yet - but this is a slave database
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if [ -z "${REPLICATE_FROM}" ]; then
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echo "You have not set REPLICATE_FROM variable."
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echo "Specify the master address/hostname in REPLICATE_FROM and REPLICATE_PORT variable."
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fi
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until su - postgres -c "pg_isready -h ${REPLICATE_FROM} -p ${REPLICATE_PORT}"
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do
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echo "Waiting for master to ping..."
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sleep 1s
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done
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if [[ "$DESTROY_DATABASE_ON_RESTART" =~ [Tt][Rr][Uu][Ee] ]]; then
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echo "Get initial database from master"
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configure_replication_permissions
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if [ -f "${DATADIR}/backup_label.old" ]; then
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echo "PG Basebackup already exists so proceed to start the DB"
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else
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streaming_replication
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fi
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fi
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# Promote to master if desired
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if [[ ! -z "${PROMOTE_MASTER}" ]]; then
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touch ${PROMOTE_FILE}
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fi
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fi
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