GitHub Actions Runner

src/Misc/layoutbin/systemd.svc.sh.template

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+#!/bin/bash
+
+SVC_NAME="{{SvcNameVar}}"
+SVC_DESCRIPTION="{{SvcDescription}}"
+
+SVC_CMD=$1
+arg_2=${2}
+
+RUNNER_ROOT=`pwd`
+
+UNIT_PATH=/etc/systemd/system/${SVC_NAME}
+TEMPLATE_PATH=./bin/actions.runner.service.template
+TEMP_PATH=./bin/actions.runner.service.temp
+CONFIG_PATH=.service
+
+user_id=`id -u`
+
+# systemctl must run as sudo
+# this script is a convenience wrapper around systemctl
+if [ $user_id -ne 0 ]; then
+    echo "Must run as sudo"
+    exit 1
+fi
+
+function failed()
+{
+   local error=${1:-Undefined error}
+   echo "Failed: $error" >&2
+   exit 1
+}
+
+if [ ! -f "${TEMPLATE_PATH}" ]; then
+    failed "Must run from runner root or install is corrupt"
+fi
+
+#check if we run as root
+if [[ $(id -u) != "0" ]]; then
+    echo "Failed: This script requires to run with sudo." >&2
+    exit 1
+fi
+
+function install()
+{
+    echo "Creating launch runner in ${UNIT_PATH}"
+    if [ -f "${UNIT_PATH}" ]; then
+        failed "error: exists ${UNIT_PATH}"
+    fi
+
+    if [ -f "${TEMP_PATH}" ]; then
+      rm "${TEMP_PATH}" || failed "failed to delete ${TEMP_PATH}"
+    fi
+
+    # can optionally use username supplied
+    run_as_user=${arg_2:-$SUDO_USER}
+    echo "Run as user: ${run_as_user}"
+
+    run_as_uid=$(id -u ${run_as_user}) || failed "User does not exist"
+    echo "Run as uid: ${run_as_uid}"
+
+    run_as_gid=$(id -g ${run_as_user}) || failed "Group not available"
+    echo "gid: ${run_as_gid}"
+
+    sed "s/{{User}}/${run_as_user}/g; s/{{Description}}/$(echo ${SVC_DESCRIPTION} | sed -e 's/[\/&]/\\&/g')/g; s/{{RunnerRoot}}/$(echo ${RUNNER_ROOT} | sed -e 's/[\/&]/\\&/g')/g;" "${TEMPLATE_PATH}" > "${TEMP_PATH}" || failed "failed to create replacement temp file"
+    mv "${TEMP_PATH}" "${UNIT_PATH}" || failed "failed to copy unit file"
+    
+    # unit file should not be executable and world writable
+    chmod 664 ${UNIT_PATH} || failed "failed to set permissions on ${UNIT_PATH}"
+    systemctl daemon-reload || failed "failed to reload daemons"
+    
+	# Since we started with sudo, runsvc.sh will be owned by root. Change this to current login user.    
+    cp ./bin/runsvc.sh ./runsvc.sh || failed "failed to copy runsvc.sh"
+    chown ${run_as_uid}:${run_as_gid} ./runsvc.sh || failed "failed to set owner for runsvc.sh"
+    chmod 755 ./runsvc.sh || failed "failed to set permission for runsvc.sh"
+
+    systemctl enable ${SVC_NAME} || failed "failed to enable ${SVC_NAME}"
+
+    echo "${SVC_NAME}" > ${CONFIG_PATH} || failed "failed to create .service file"
+    chown ${run_as_uid}:${run_as_gid} ${CONFIG_PATH} || failed "failed to set permission for ${CONFIG_PATH}"
+}
+
+function start()
+{
+    systemctl start ${SVC_NAME} || failed "failed to start ${SVC_NAME}"
+    status    
+}
+
+function stop()
+{
+    systemctl stop ${SVC_NAME} || failed "failed to stop ${SVC_NAME}"    
+    status
+}
+
+function uninstall()
+{
+    stop
+    systemctl disable ${SVC_NAME} || failed "failed to disable  ${SVC_NAME}"
+    rm "${UNIT_PATH}" || failed "failed to delete ${UNIT_PATH}"
+    if [ -f "${CONFIG_PATH}" ]; then
+      rm "${CONFIG_PATH}" || failed "failed to delete ${CONFIG_PATH}"
+    fi
+    systemctl daemon-reload || failed "failed to reload daemons"
+}
+
+function status()
+{
+    if [ -f "${UNIT_PATH}" ]; then
+        echo
+        echo "${UNIT_PATH}"
+    else
+        echo
+        echo "not installed"
+        echo
+        return
+    fi
+
+    systemctl --no-pager status ${SVC_NAME}
+}
+
+function usage()
+{
+    echo
+    echo Usage:
+    echo "./svc.sh [install, start, stop, status, uninstall]"
+    echo "Commands:"
+    echo "   install [user]: Install runner service as Root or specified user."
+    echo "   start: Manually start the runner service."
+    echo "   stop: Manually stop the runner service."
+    echo "   status: Display status of runner service."
+    echo "   uninstall: Uninstall runner service."
+    echo
+}
+
+case $SVC_CMD in
+   "install") install;;
+   "status") status;;
+   "uninstall") uninstall;;
+   "start") start;;
+   "stop") stop;;
+   "status") status;;
+   *) usage;;
+esac
+
+exit 0