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Only start service if something changed

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This commit is contained in:
Erik Wilson 2019-04-25 10:06:22 -07:00
parent 6a80350dda
commit 3543ba4b56
1 changed files with 27 additions and 13 deletions
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40
install.sh
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@ -162,6 +162,8 @@ setup_env() {
if [ `id -u` = 0 ]; then
SUDO=
fi
PRE_INSTALL_HASHES=`get_installed_hashes`
}
# --- check if skip download environment variable set ---
@ -472,41 +474,53 @@ EOF
# --- write systemd or openrc service file ---
create_service_file() {
if [ "${HAS_SYSTEMD}" = "true" ]; then
create_systemd_service_file
elif [ "${HAS_OPENRC}" = "true" ]; then
create_openrc_service_file
fi
[ "${HAS_SYSTEMD}" = "true" ] && create_systemd_service_file
[ "${HAS_OPENRC}" = "true" ] && create_openrc_service_file
}
# --- get hashes of the current k3s bin and service files
get_installed_hashes() {
sha256sum ${BIN_DIR}/k3s ${FILE_K3S_SERVICE} ${FILE_K3S_ENV} 2>&1 || true
}
# --- enable and start systemd service ---
systemd_enable_and_start() {
systemd_enable() {
info "systemd: Enabling ${SYSTEM_NAME} unit"
$SUDO systemctl enable ${FILE_K3S_SERVICE} >/dev/null
$SUDO systemctl daemon-reload >/dev/null
}
[ "${INSTALL_K3S_SKIP_START}" = "true" ] && return
systemd_start() {
info "systemd: Starting ${SYSTEM_NAME}"
$SUDO systemctl restart ${SYSTEM_NAME}
}
# --- enable and start openrc service ---
openrc_enable_and_start() {
openrc_enable() {
info "openrc: Enabling ${SYSTEM_NAME} service for default runlevel"
$SUDO rc-update add ${SYSTEM_NAME} default >/dev/null
}
[ "${INSTALL_K3S_SKIP_START}" = "true" ] && return
openrc_start() {
info "openrc: Starting ${SYSTEM_NAME}"
$SUDO ${FILE_K3S_SERVICE} restart
}
# --- startup systemd or openrc service ---
service_enable_and_start() {
if [ "${HAS_SYSTEMD}" = "true" ]; then
systemd_enable_and_start
elif [ "${HAS_OPENRC}" = "true" ]; then
openrc_enable_and_start
[ "${HAS_SYSTEMD}" = "true" ] && systemd_enable
[ "${HAS_OPENRC}" = "true" ] && openrc_enable
[ "${INSTALL_K3S_SKIP_START}" = "true" ] && return
POST_INSTALL_HASHES=`get_installed_hashes`
if [ "${PRE_INSTALL_HASHES}" = "${POST_INSTALL_HASHES}" ]; then
info "No change detected so skipping service start"
return
fi
[ "${HAS_SYSTEMD}" = "true" ] && systemd_start
[ "${HAS_OPENRC}" = "true" ] && openrc_start
}
# --- run the install process --