feat: random custom runner name

Author: vaggeliskls

Vagrantfile

@@ -34,7 +34,7 @@ Vagrant.configure("2") do |config|
         Set-Location actions-runner
         Invoke-WebRequest -Uri $GITHUB_RUNNER_URL -OutFile $GITHUB_RUNNER_FILE
         Expand-Archive $GITHUB_RUNNER_FILE -DestinationPath .
-        ./config.cmd --name ${GITHUB_RUNNER_NAME}_${RANDOM} --replace --unattended --url $ORGANIZATION_URL --labels $GITHUB_RUNNER_LABELS --pat $PAT
+        ./config.cmd --name ${GITHUB_RUNNER_NAME}_${RANDOM_STR} --replace --unattended --url $ORGANIZATION_URL --labels $GITHUB_RUNNER_LABELS --pat $PAT
         ./run.cmd
     SHELL
 end

startup.sh

@@ -3,6 +3,7 @@
 # Password: vagrant
 set -eou pipefail
 # Replace environmental variable to Vagrandfile
+export RANDOM_STR=$$
 envsubst < Vagrantfile > exported.txt && mv exported.txt Vagrantfile
 
 chown root:kvm /dev/kvm