#!/sbin/openrc-run
# rds-init — boot oneshot that bootstraps or attaches the MariaDB datadir before
# the engine starts.
#
# `before mariadb` orders the two, and /etc/conf.d/mariadb makes the engine need
# this oneshot: Alpine's packaged mariadb service only prints a warning when the
# datadir is empty and starts anyway, so ordering alone would let mysqld_safe
# launch against an unbootstrapped data volume. `after rds-agent`, not `need`, so
# a failed fetch fails this oneshot visibly rather than skipping it.

description="Spinifex RDS MariaDB bootstrap"

AGENT_ENV="/etc/spinifex-rds/agent.env"

depend() {
    need net
    after rds-agent rds-datadir
    before mariadb
}

start_pre() {
    if [ -f "${AGENT_ENV}" ]; then
        # shellcheck disable=SC1090
        . "${AGENT_ENV}"
        export RDS_HANDOFF_DIR RDS_DATA_MOUNT
    fi
}

start() {
    ebegin "Bootstrapping the RDS MariaDB instance"
    # The VM has no operator login, so the host-side serial log is the only view
    # of a bootstrap that failed before the engine came up.
    /usr/local/sbin/rds-init > /dev/console 2>&1
    eend $?
}