using private key?

.gitea/workflows/stage-deploy.yaml

@@ -25,13 +25,13 @@ jobs:
         run: |
           mkdir -p /root/.ssh/
           touch /root/.ssh/config
-          echo $SSH_KEY > /root/.ssh/id_stage.pub
-          chmod 600 /root/.ssh/id_stage.pub
+          echo $SSH_KEY > /root/.ssh/id_stage
+          chmod 600 /root/.ssh/id_stage
           cat >> /root/.ssh/config <<END
           Host staging
             HostName $SSH_HOST
             User $SSH_USER
-            IdentityFile /root/.ssh/id_stage.pub
+            IdentityFile /root/.ssh/id_stage
             StrictHostKeyChecking no
           END
         env: