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124 lines
3.2 KiB
Bash
Executable File
124 lines
3.2 KiB
Bash
Executable File
#!/bin/bash
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set -e
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# usage: file_env VAR [DEFAULT]
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# ie: file_env 'XYZ_DB_PASSWORD' 'example'
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# (will allow for "$XYZ_DB_PASSWORD_FILE" to fill in the value of
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# "$XYZ_DB_PASSWORD" from a file, especially for Docker's secrets feature)
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file_env() {
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local var="$1"
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local fileVar="${var}_FILE"
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local def="${2:-}"
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if [ "${!var:-}" ] && [ "${!fileVar:-}" ]; then
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echo >&2 "error: both $var and $fileVar are set (but are exclusive)"
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exit 1
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fi
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local val="$def"
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if [ "${!var:-}" ]; then
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val="${!var}"
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elif [ "${!fileVar:-}" ]; then
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val="$(< "${!fileVar}")"
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fi
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export "$var"="$val"
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unset "$fileVar"
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}
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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 [ "$1" = 'postgres' ]; then
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mkdir -p "$PGDATA"
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chmod 700 "$PGDATA"
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chown -R postgres "$PGDATA"
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mkdir -p /run/postgresql
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chmod g+s /run/postgresql
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chown -R postgres /run/postgresql
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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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file_env 'POSTGRES_INITDB_ARGS'
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eval "gosu postgres initdb $POSTGRES_INITDB_ARGS"
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# check password first so we can output the warning before postgres
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# messes it up
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file_env 'POSTGRES_PASSWORD'
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if [ "$POSTGRES_PASSWORD" ]; then
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pass="PASSWORD '$POSTGRES_PASSWORD'"
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authMethod=md5
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else
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# The - option suppresses leading tabs but *not* spaces. :)
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cat >&2 <<-'EOWARN'
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****************************************************
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WARNING: No password has been set for the database.
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This will allow anyone with access to the
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Postgres port to access your database. In
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Docker's default configuration, this is
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effectively any other container on the same
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system.
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Use "-e POSTGRES_PASSWORD=password" to set
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it in "docker run".
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****************************************************
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EOWARN
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pass=
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authMethod=trust
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fi
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{ echo; echo "host all all all $authMethod"; } | gosu postgres tee -a "$PGDATA/pg_hba.conf" > /dev/null
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# internal start of server in order to allow set-up using psql-client
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# does not listen on external TCP/IP and waits until start finishes
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gosu postgres pg_ctl -D "$PGDATA" \
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-o "-c listen_addresses='localhost'" \
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-w start
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file_env 'POSTGRES_USER' 'postgres'
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file_env 'POSTGRES_DB' "$POSTGRES_USER"
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psql=( psql -v ON_ERROR_STOP=1 )
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if [ "$POSTGRES_DB" != 'postgres' ]; then
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"${psql[@]}" --username postgres <<-EOSQL
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CREATE DATABASE "$POSTGRES_DB" ;
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EOSQL
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echo
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fi
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if [ "$POSTGRES_USER" = 'postgres' ]; then
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op='ALTER'
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else
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op='CREATE'
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fi
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"${psql[@]}" --username postgres <<-EOSQL
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$op USER "$POSTGRES_USER" WITH SUPERUSER $pass ;
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EOSQL
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echo
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psql+=( --username "$POSTGRES_USER" --dbname "$POSTGRES_DB" )
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echo
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for f in /docker-entrypoint-initdb.d/*; do
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case "$f" in
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*.sh) echo "$0: running $f"; . "$f" ;;
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*.sql) echo "$0: running $f"; "${psql[@]}" < "$f"; echo ;;
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*.sql.gz) echo "$0: running $f"; gunzip -c "$f" | "${psql[@]}"; echo ;;
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*) echo "$0: ignoring $f" ;;
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esac
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echo
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done
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gosu postgres pg_ctl -D "$PGDATA" -m fast -w stop
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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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fi
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exec gosu postgres "$@"
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fi
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exec "$@"
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