jenkins: reserve one bounded Lesavka worker allocation

services/jenkins/configmap-jcasc.yaml

@@ -827,6 +827,25 @@ data:
               - key: "GIT_CONFIG_VALUE_0"
                 value: "*"
       clouds:
+      - kubernetes:
+          # One bounded Lesavka worker must not wait behind unrelated stale jobs.
+          name: "lesavka"
+          containerCapStr: "1"
+          connectTimeout: "20"
+          readTimeout: "90"
+          jenkinsUrl: "http://jenkins.jenkins.svc.cluster.local:8080"
+          jenkinsTunnel: "jenkins.jenkins.svc.cluster.local:50000"
+          skipTlsVerify: false
+          maxRequestsPerHostStr: "8"
+          retentionTimeout: "5"
+          waitForPodSec: "300"
+          namespace: "jenkins"
+          restrictedPssSecurityContext: false
+          serverUrl: "https://kubernetes.default"
+          credentialsId: ""
+          podLabels:
+          - key: "jenkins/lesavka-agent"
+            value: "true"
       - kubernetes:
           # Stabilization: one build at a time leaves headroom for live services.
           containerCapStr: "1"