Merging upstream version 1.14.0~rc0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 115 insertions, 0 deletions

diff --git a/health/health.d/kubelet.conf b/health/health.d/kubelet.conf
new file mode 100644
index 00000000..d2ef24b5
--- /dev/null
+++ b/health/health.d/kubelet.conf
@@ -0,0 +1,115 @@
+# you can disable an alarm notification by setting the 'to' line to: silent
+
+# -----------------------------------------------------------------------------
+
+# True (1) if the node is experiencing a configuration-related error, false (0) otherwise.
+
+   template: node_config_error
+         on: k8s_kubelet.kubelet_node_config_error
+       calc: $kubelet_node_config_error
+      units: bool
+      every: 10s
+       warn: $this == 1
+      delay: down 1m multiplier 1.5 max 2h
+       info: the node is experiencing a configuration-related error
+         to: sysadmin
+
+# Failed Token() requests to the alternate token source
+
+   template: token_requests
+     lookup: sum -10s of token_fail_count
+         on: k8s_kubelet.kubelet_token_requests
+      units: failed requests
+      every: 10s
+       warn: $this > 0
+      delay: down 1m multiplier 1.5 max 2h
+       info: failed token requests to alternate token source
+         to: sysadmin
+
+# Docker and runtime operation errors
+
+   template: kubelet_operations_error
+     lookup: sum -1m
+         on: k8s_kubelet.kubelet_operations_errors
+      units: errors
+      every: 10s
+       warn: $this > (($status >= $WARNING)  ? (0) : (20))
+      delay: up 30s down 1m multiplier 1.5 max 2h
+       info: operations error
+         to: sysadmin
+
+# -----------------------------------------------------------------------------
+
+# Pod Lifecycle Event Generator Relisting Latency
+
+# 1. calculate the pleg relisting latency for 1m (quantile 0.5, quantile 0.9, quantile 0.99)
+# 2. do the same for the last 10s
+# 3. raise an alarm if the later is:
+# - 2x the first for quantile 0.5
+# - 4x the first for quantile 0.9
+# - 8x the first for quantile 0.99
+#
+# we assume the minimum latency is 1000 microseconds
+
+# quantile 0.5
+
+template: 1m_kubelet_pleg_relist_latency_quantile_05
+      on: k8s_kubelet.kubelet_pleg_relist_latency_microseconds
+  lookup: average -1m unaligned of kubelet_pleg_relist_latency_05
+   units: microseconds
+   every: 10s
+    info: the average value of pleg relisting latency during the last minute (quantile 0.5)
+
+template: 10s_kubelet_pleg_relist_latency_quantile_05
+      on: k8s_kubelet.kubelet_pleg_relist_latency_microseconds
+  lookup: average -10s unaligned of kubelet_pleg_relist_latency_05
+    calc: $this * 100 / (($1m_kubelet_pleg_relist_latency_quantile_05 < 1000)?(1000):($1m_kubelet_pleg_relist_latency_quantile_05))
+   every: 10s
+   units: %
+   warn: $this > (($status >= $WARNING)?(100):(200))
+   crit: $this > (($status >= $WARNING)?(200):(400))
+  delay: down 1m multiplier 1.5 max 2h
+   info: the % of the pleg relisting latency in the last 10 seconds, compared to the last minute (quantile 0.5)
+     to: sysadmin
+
+# quantile 0.9
+
+template: 1m_kubelet_pleg_relist_latency_quantile_09
+      on: k8s_kubelet.kubelet_pleg_relist_latency_microseconds
+  lookup: average -1m unaligned of kubelet_pleg_relist_latency_09
+   units: microseconds
+   every: 10s
+    info: the average value of pleg relisting latency during the last minute (quantile 0.9)
+
+template: 10s_kubelet_pleg_relist_latency_quantile_09
+      on: k8s_kubelet.kubelet_pleg_relist_latency_microseconds
+  lookup: average -10s unaligned of kubelet_pleg_relist_latency_09
+    calc: $this * 100 / (($1m_kubelet_pleg_relist_latency_quantile_09 < 1000)?(1000):($1m_kubelet_pleg_relist_latency_quantile_09))
+   every: 10s
+   units: %
+   warn: $this > (($status >= $WARNING)?(200):(400))
+   crit: $this > (($status >= $WARNING)?(400):(800))
+  delay: down 1m multiplier 1.5 max 2h
+   info: the % of the pleg relisting latency in the last 10 seconds, compared to the last minute (quantile 0.9)
+     to: sysadmin
+
+# quantile 0.99
+
+template: 1m_kubelet_pleg_relist_latency_quantile_099
+      on: k8s_kubelet.kubelet_pleg_relist_latency_microseconds
+  lookup: average -1m unaligned of kubelet_pleg_relist_latency_099
+   units: microseconds
+   every: 10s
+    info: the average value of pleg relisting latency during the last minute (quantile 0.99)
+
+template: 10s_kubelet_pleg_relist_latency_quantile_099
+      on: k8s_kubelet.kubelet_pleg_relist_latency_microseconds
+  lookup: average -10s unaligned of kubelet_pleg_relist_latency_099
+    calc: $this * 100 / (($1m_kubelet_pleg_relist_latency_quantile_099 < 1000)?(1000):($1m_kubelet_pleg_relist_latency_quantile_099))
+   every: 10s
+   units: %
+   warn: $this > (($status >= $WARNING)?(400):(800))
+   crit: $this > (($status >= $WARNING)?(800):(1200))
+  delay: down 1m multiplier 1.5 max 2h
+   info: the % of the pleg relisting latency in the last 10 seconds, compared to the last minute (quantile 0.99)
+     to: sysadmin