always allow workflows to mount /srv/example

because it is generally useful to store informations about how the
workflow ran

actions/run.sh

@@ -2,11 +2,13 @@
 
 set -e
 
+SELF_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+
 function run() {
   local example=$1
 
   export example
-  export EXAMPLE_DIR=$(pwd)/actions/example-$example
+  export EXAMPLE_DIR=$SELF_DIR/example-$example
 
   if test -f $EXAMPLE_DIR/setup.sh ; then
     echo "============================ SETUP example-$example ==================="
@@ -39,9 +41,24 @@ function examples_v1_22() {
     examples_v1_21
 }
 
+function cleanup_example_volume() {
+    if ! test -d /srv/example ; then
+	mkdir -p /srv/example
+	return
+    fi
+
+    if test $(id -u) != 0 ; then
+	SUDO=sudo
+    fi
+
+    $SUDO rm -fr /srv/example/*
+}
+
 function setup() {
     local binary=$1
     forgejo-binary.sh setup root admin1234 $binary
+    cleanup_example_volume
+    export FORGEJO_RUNNER_CONFIG=$SELF_DIR/runner-config.yaml
     forgejo-runner.sh setup
 }
 
@@ -90,6 +107,7 @@ function main() {
 	  false
       fi
       echo "======================== END example-$example ==================="
+      cleanup_example_volume
     done
 }