extracted from infraRasp repository

Dockerfile

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+FROM postgres:14.1-bullseye
+
+COPY initScript/*.sh /docker-entrypoint-initdb.d/
+RUN localedef -i fr_FR -c -f UTF-8 -A /usr/share/locale/locale.alias fr_FR.UTF-8
+ENV LANG fr_FR.utf8
+
+ENTRYPOINT ["docker-entrypoint.sh"]
+VOLUME /var/lib/postgresql/data/instance
+
+EXPOSE 5432
+CMD ["postgres"]

Makefile

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+.PHONY: imagePostgres
+
+REGISTRY_IP=docker.registry
+# linux/arm/v7
+# linux/arm/v6
+# linux/arm64
+# linux/amd64
+PLATFORM=linux/arm/v6
+#VERBOSITY=info
+VERBOSITY=debug
+
+## build
+
+imagePostgres:
+	$(shell docker-multi-arch-builder build -n postgres --platforms $(PLATFORM) -v $(VERBOSITY))
+
+## management
+
+status:
+	@curl -s $(REGISTRY_IP):5000/v2/_catalog | jq

initScript/init.sh

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+#!/bin/bash
+set -e
+
+app_password=$(cat "$POSTGRES_APP_PASSWORD_FILE")
+
+psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" --dbname "$POSTGRES_DB" <<-EOSQL
+    CREATE USER docker WITH PASSWORD '$app_password';
+    CREATE DATABASE docker;
+    GRANT ALL PRIVILEGES ON DATABASE docker TO docker;
+    
+    -- SELECT datname FROM pg_database WHERE datistemplate = false;
+    -- SELECT table_schema,table_name
+    -- FROM information_schema.tables
+    -- ORDER BY table_schema,table_name;
+EOSQL

readme.md

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+## postgres docker image
+
+build postgres container with custom sql init script use to create application database at startup