From 10e7902a12bdca973aa67b5eaeec2ebf707cc045 Mon Sep 17 00:00:00 2001
From: Vishnu kannan <vishnuk@google.com>
Date: Mon, 6 Feb 2017 11:47:48 -0800
Subject: [PATCH] make fluentd a critical pod

Signed-off-by: Vishnu kannan <vishnuk@google.com>
---
 cluster/addons/fluentd-elasticsearch/fluentd-es-ds.yaml | 5 +++++
 cluster/addons/fluentd-gcp/fluentd-gcp-ds.yaml          | 5 +++++
 cluster/saltbase/salt/fluentd-gcp/fluentd-gcp.yaml      | 5 +++++
 3 files changed, 15 insertions(+)

diff --git a/cluster/addons/fluentd-elasticsearch/fluentd-es-ds.yaml b/cluster/addons/fluentd-elasticsearch/fluentd-es-ds.yaml
index 2e02cbdb5e..07fb013efa 100644
--- a/cluster/addons/fluentd-elasticsearch/fluentd-es-ds.yaml
+++ b/cluster/addons/fluentd-elasticsearch/fluentd-es-ds.yaml
@@ -14,6 +14,11 @@ spec:
         k8s-app: fluentd-es
         kubernetes.io/cluster-service: "true"
         version: v1.22
+  # This annotation ensures that fluentd does not get evicted if the node
+  # supports critical pod annotation based priority scheme.
+  # Note that this does not guarantee admission on the nodes (#40573).
+      annotations:
+        scheduler.alpha.kubernetes.io/critical-pod: ''
     spec:
       containers:
       - name: fluentd-es
diff --git a/cluster/addons/fluentd-gcp/fluentd-gcp-ds.yaml b/cluster/addons/fluentd-gcp/fluentd-gcp-ds.yaml
index e897dfbc13..045e0824b8 100644
--- a/cluster/addons/fluentd-gcp/fluentd-gcp-ds.yaml
+++ b/cluster/addons/fluentd-gcp/fluentd-gcp-ds.yaml
@@ -15,6 +15,11 @@ spec:
         k8s-app: fluentd-gcp
         kubernetes.io/cluster-service: "true"
         version: v1.35
+  # This annotation ensures that fluentd does not get evicted if the node
+  # supports critical pod annotation based priority scheme.
+  # Note that this does not guarantee admission on the nodes (#40573).
+      annotations:
+        scheduler.alpha.kubernetes.io/critical-pod: ''
     spec:
       containers:
       - name: fluentd-gcp
diff --git a/cluster/saltbase/salt/fluentd-gcp/fluentd-gcp.yaml b/cluster/saltbase/salt/fluentd-gcp/fluentd-gcp.yaml
index fa4d0433e4..2bdd1f8e25 100644
--- a/cluster/saltbase/salt/fluentd-gcp/fluentd-gcp.yaml
+++ b/cluster/saltbase/salt/fluentd-gcp/fluentd-gcp.yaml
@@ -6,6 +6,11 @@ metadata:
   namespace: kube-system
   labels:
     k8s-app: fluentd-logging
+  # This annotation ensures that fluentd does not get evicted if the node
+  # supports critical pod annotation based priority scheme.
+  # Note that this does not guarantee admission on the nodes (#40573).
+  annotations:
+    scheduler.alpha.kubernetes.io/critical-pod: ''
 spec:
   dnsPolicy: Default
   containers: