44 lines
1.7 KiB
YAML
44 lines
1.7 KiB
YAML
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apiVersion: v1
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kind: ConfigMap
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metadata:
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name: todo-db-scripts
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labels:
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kiamol: ch09
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data:
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wait-service.sh: |-
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#!/bin/sh
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if [ "$HOSTNAME" == "$POSTGRES_PRIMARY_NAME" ]; then
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echo '** Postgres primary **'
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else
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echo '** Postgres standby - waiting on DNS for primary **'
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until nslookup ${POSTGRES_PRIMARY_FQDN}; do echo Waiting for ${POSTGRES_PRIMARY_FQDN}; sleep 1; done
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fi
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initialize-replication.sh: |-
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#!/bin/bash
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if [ "$HOSTNAME" == "$POSTGRES_PRIMARY_NAME" ]; then
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echo '** Postgres primary - creating replication user script **'
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cp /scripts/create-replica-user.sh /docker-entrypoint-initdb.d/create-replica-user.sh
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ls -l /docker-entrypoint-initdb.d
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else
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echo '** Postgres standby - waiting on primary **'
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until pg_isready -h "$POSTGRES_PRIMARY_FQDN"; do echo Waiting for db to be ready; sleep 1; done
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fi
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create-replica-user.sh: |-
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#!/bin/bash
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set -e
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psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" --dbname "$POSTGRES_DB" <<-EOSQL
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CREATE ROLE replication WITH REPLICATION PASSWORD '$PGPASSWORD' LOGIN
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EOSQL
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startup.sh: |-
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#!/bin/sh
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if [ "$HOSTNAME" == "$POSTGRES_PRIMARY_NAME" ]; then
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echo '** Postgres primary **'
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/docker-entrypoint.sh postgres -c config_file=/conf/primary.conf -c hba_file=/conf/pg_hba.conf
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else
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echo '** Postgres standby - initializing replication**'
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if [ -z "$(ls -A ${PGDATA})" ]; then
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pg_basebackup -R -h "$POSTGRES_PRIMARY_FQDN" -D "$PGDATA" -P -U replication
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chown -R postgres:postgres $PGDATA
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fi
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/docker-entrypoint.sh postgres -c config_file=/conf/standby.conf
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fi
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