ansible-roles/evoacme/files/hooks/reload_postfix

#!/bin/sh

readonly PROGNAME=$(basename "$0")
# shellcheck disable=SC2124,SC2034
readonly ARGS=$@

readonly VERBOSE=${VERBOSE:-"0"}
readonly QUIET=${QUIET:-"0"}

error() {
    >&2 echo "${PROGNAME}: $1"
    exit 1
}
debug() {
    if [ "${VERBOSE}" = "1" ] && [ "${QUIET}" != "1" ]; then
        >&2 echo "${PROGNAME}: $1"
    fi
}

if [ -n "$(pidof master)" ]; then
    # shellcheck disable=SC2091
    if $($(command -v postconf) > /dev/null); then
        # shellcheck disable=SC2091
        if $($(command -v postconf)|grep -E "^smtpd_tls_cert_file"|grep -q "letsencrypt"); then
            debug "Postfix detected... reloading"
            service postfix reload
        else
            debug "Postfix doesn't use Let's Encrypt certificate. Skip."
        fi
    else
        error "Postfix config is broken, you must fix it !"
    fi
else
    debug "Postfix is not running. Skip."
fi