ci: label contrast runners and directly assign stateful pods

Author: burgerdev

.github/workflows/bm_maintenance.yml

@@ -98,6 +98,8 @@ jobs:
         if: ${{ matrix.platform.name == 'Metal-QEMU-SNP-GPU' || matrix.platform.name == 'Metal-QEMU-TDX-GPU' }}
         run: |
           kubectl apply -f https://raw.githubusercontent.com/katexochen/sync/9567164967b5832fb4992088af89dbbd94184043/server/deployment.yml
+          kubectl patch statefulset sync --type='json' -p='[{"op": "replace", "path": "/spec/template/spec/nodeSelector", "value": {"ci.contrast.edgeless.systems/main-runner": "true"}}]'
+          kubectl rollout restart statefulset/sync
           kubectl rollout status statefulset/sync --timeout=5m
           kubectl wait --for=jsonpath='{.status.loadBalancer.ingress[0].ip}' --timeout=5m svc/sync
           nix run .#scripts.renew-sync-fifo

dev-docs/e2e/bare-metal-runner.md

@@ -67,9 +67,13 @@ disable:
   - local-storage
 kubelet-arg:
   - "runtime-request-timeout=5m"
+node-label:
+  - ci.contrast.edgeless.systems/main-runner=true
 EOF
 ```
 
+**IMPORTANT**: If the node is going to run a different Kubernetes distribution, make sure to apply these overrides in some other way.
+
 Install K3s
 
 ```bash

packages/by-name/csi-driver-host-path/kustomization.yaml

@@ -21,3 +21,11 @@ labels:
     pairs:
       app.kubernetes.io/instance: hostpath.csi.k8s.io
       app.kubernetes.io/part-of: csi-driver-host-path
+
+patches:
+- patch: |-
+    - op: replace
+      path: /spec/template/spec/nodeSelector
+      value: {"ci.contrast.edgeless.systems/main-runner": "true"}
+  target:
+    kind: StatefulSet