WIP: add the github runner related scripts.

.ci/github/Singularity

+BootStrap:docker
+From:centos:7
+
+%post
+       yum install -y libicu which make redhat-lsb epel-release libglvnd-devel git mesa-libGLU-devel libXmu-devel motif-devel compat-db47

.ci/github/setup-github-runner.sh

+#!/bin/bash
+############################################
+# Description:
+#   Manage the github runners in singularity
+# Usage:
+#   $ ./setup-github-runner new <TOKEN>
+#   $ ./setup-github-runner start
+# Author: Tao Lin <lintao AT ihep.ac.cn>
+############################################
+
+
+#############################################
+# Configuration
+#############################################
+export RUNNER_TOP_DIR=/tmp/$USER/github-runner
+export SINGULARITY_BINDPATH=/cvmfs
+export RUNNER_REPO=https://github.com/cepc/CEPCSW
+
+[ -d "$RUNNER_TOP_DIR" ] || mkdir $RUNNER_TOP_DIR
+
+#############################################
+# Create a new github action runner (gar)
+#############################################
+
+function gar-new-id() {
+    local currentid="$(find $RUNNER_TOP_DIR -maxdepth 1 -name github-runner-\* -type d | rev | cut -d- -f 1 | rev | sort -n | tail -n1)"
+    if [ -z "$currentid" ]; then
+        echo 1
+    else
+        echo $((currentid+1))
+    fi
+}
+
+function gar-new-name() {
+    echo github-runner-$(gar-new-id)
+}
+
+function gar-download-url() {
+    echo https://github.com/actions/runner/releases/download/v2.274.2/actions-runner-linux-x64-2.274.2.tar.gz
+}
+function gar-download-filename() {
+    echo actions-runner-linux-x64-2.274.2.tar.gz
+}
+
+function gar-new() {
+    local dn=$(gar-new-name)
+    local fdn=$RUNNER_TOP_DIR/$dn
+    if [ -d "$fdn" ]; then
+        echo "ERROR: $dn already exists" 1>&2
+        exit -1
+    fi
+
+    mkdir $fdn || {
+        echo "ERROR: Failed to create $fdn" 1>&2
+        exit -1
+    }
+
+
+    pushd $RUNNER_TOP_DIR
+    if [ ! -f "$(gar-download-filename)" ]; then
+        curl -O -L $(gar-download-url) || exit -1
+    fi
+    popd
+
+    pushd $fdn
+
+    tar xzf $RUNNER_TOP_DIR/$(gar-download-filename) || exit -1
+
+    # start singularity instance
+    singularity instance start ~/github-runner.sif ${dn}
+    
+    singularity run instance://${dn} ./config.sh --url ${RUNNER_REPO} --token ${token} || exit -1
+    singularity run instance://${dn} bash -c "./run.sh &"
+
+    popd
+    
+}
+
+function new() {
+
+    token=$1; shift
+    if [ -z "$token" ]; then
+        echo "Please pass the token to this script" 1>&2
+        exit -1
+    fi
+    gar-new
+}
+
+#############################################
+# Start github action runners (gar)
+#############################################
+
+function gar-lists() {
+    find $RUNNER_TOP_DIR -maxdepth 1 -name github-runner-\* -type d -exec basename {} \;
+}
+
+function gar-check() {
+    local gar=$1;
+    local result=$(singularity instance list $gar | grep $gar)
+    if [ -n "$result" ]; then
+        echo Y
+    else
+        echo N
+    fi
+}
+
+function gar-start() {
+    local gar=$1;
+
+    local isrunning=$(gar-check $gar)
+    if [ "$isrunning" = "Y" ]; then
+        echo "WARNING: $gar is already running. skip it."
+        return
+    fi
+
+    pushd $RUNNER_TOP_DIR/$gar
+    singularity instance start ~/github-runner.sif ${gar}
+    singularity run instance://${gar} bash -c "./run.sh &"
+    popd
+}
+
+function start() {
+    local gars="$*"
+    if [ -z "$gars" ]; then
+        echo "All the github action runners will be started"
+        gars="$(gar-lists)"
+    fi
+    local gar
+    for gar in $gars; do
+        gar-start $gar
+    done
+}
+
+#############################################
+# Command line options
+#############################################
+
+cmd=$1; shift
+if [ -z "$cmd" ]; then
+    echo "Please specify the command to be invoked" 1>&2
+    exit -1
+fi
+
+case $cmd in
+    new)
+        new $*
+        ;;
+    start)
+        start $*
+        ;;
+    *)
+        echo "Unknown command '$cmd'" 1>&2
+        ;;
+esac