Mauro Torrez
21ac76d801
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114 lines
3.7 KiB
Bash
Executable File
114 lines
3.7 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -Eeo pipefail
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# This script extends the original entrypoint with support for adding
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# a non-superuser owner to the $POSTGRES_DB database
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# source vendor entrypoint
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. /usr/local/bin/docker-entrypoint.sh
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# create initial database
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# uses environment variables for input: POSTGRES_DB
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docker_setup_db() {
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if [ "$POSTGRES_DB_USER" != 'postgres' ]; then
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if [ -n "$POSTGRES_DB_PASSWORD" ]; then
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POSTGRES_DB= docker_process_sql --dbname postgres --set user="$POSTGRES_DB_USER" --set password="$POSTGRES_DB_PASSWORD" <<-'EOSQL'
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CREATE USER :"user" WITH PASSWORD :'password' ;
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EOSQL
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echo
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else
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POSTGRES_DB= docker_process_sql --dbname postgres --set user="$POSTGRES_DB_USER" <<-'EOSQL'
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CREATE USER :"user" ;
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EOSQL
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echo
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fi
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if [ "$POSTGRES_DB" != 'postgres' ]; then
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POSTGRES_DB= docker_process_sql --dbname postgres --set db="$POSTGRES_DB" --set user="$POSTGRES_DB_USER" <<-'EOSQL'
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CREATE DATABASE :"db" WITH OWNER = :"user" ;
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EOSQL
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echo
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fi
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else
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if [ "$POSTGRES_DB" != 'postgres' ]; then
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POSTGRES_DB= docker_process_sql --dbname postgres --set db="$POSTGRES_DB" <<-'EOSQL'
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CREATE DATABASE :"db" ;
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EOSQL
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echo
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fi
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fi
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}
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# Loads various settings that are used elsewhere in the script
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# This should be called before any other functions
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docker_setup_env() {
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file_env 'POSTGRES_PASSWORD'
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file_env 'POSTGRES_USER' 'postgres'
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file_env 'POSTGRES_DB' "$POSTGRES_USER"
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file_env 'POSTGRES_INITDB_ARGS'
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# default authentication method is md5
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: "${POSTGRES_HOST_AUTH_METHOD:=md5}"
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file_env 'POSTGRES_DB_USER' "$POSTGRES_USER"
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file_env 'POSTGRES_DB_PASSWORD'
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declare -g DATABASE_ALREADY_EXISTS
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# look specifically for PG_VERSION, as it is expected in the DB dir
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if [ -s "$PGDATA/PG_VERSION" ]; then
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DATABASE_ALREADY_EXISTS='true'
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fi
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}
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_main() {
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# if first arg looks like a flag, assume we want to run postgres server
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if [ "${1:0:1}" = '-' ]; then
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set -- postgres "$@"
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fi
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if [ "$1" = 'postgres' ] && ! _pg_want_help "$@"; then
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docker_setup_env
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# setup data directories and permissions (when run as root)
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docker_create_db_directories
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if [ "$(id -u)" = '0' ]; then
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# then restart script as postgres user
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exec gosu postgres "$BASH_SOURCE" "$@"
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fi
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# only run initialization on an empty data directory
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if [ -z "$DATABASE_ALREADY_EXISTS" ]; then
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docker_verify_minimum_env
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# check dir permissions to reduce likelihood of half-initialized database
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ls /docker-entrypoint-initdb.d/ > /dev/null
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docker_init_database_dir
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pg_setup_hba_conf
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# PGPASSWORD is required for psql when authentication is required for 'local' connections via pg_hba.conf and is otherwise harmless
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# e.g. when '--auth=md5' or '--auth-local=md5' is used in POSTGRES_INITDB_ARGS
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export PGPASSWORD="${PGPASSWORD:-$POSTGRES_PASSWORD}"
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docker_temp_server_start "$@"
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docker_setup_db
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docker_process_init_files /docker-entrypoint-initdb.d/*
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docker_temp_server_stop
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unset PGPASSWORD
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echo
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echo 'PostgreSQL init process complete; ready for start up.'
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echo
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else
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echo
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echo 'PostgreSQL Database directory appears to contain a database; Skipping initialization'
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echo
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fi
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fi
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exec "$@"
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}
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if ! _is_sourced; then
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_main "$@"
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fi
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