Start the agent

.drone.jsonnet

@@ -17,6 +17,7 @@ local custom_clone = {
   environment: { CLONE_KEY: { from_secret: 'CLONE_KEY' } },
   commands: [
 //    'echo "$CLONE_KEY" > $HOME/.ssh/id_git_rsa',
+    'eval "$(ssh-agent)"',
     'git init',
     'git remote add origin git@github.com:$DRONE_REPO.git',
     'ssh-agent $(ssh-add $CLONE_KEY; git fetch --depth=1 origin +refs/heads/$DRONE_BRANCH)',