Merging upstream version 1.45.3+dfsg.

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

1 files changed, 151 insertions, 0 deletions

diff --git a/src/health/health.d/kubelet.conf b/src/health/health.d/kubelet.conf
new file mode 100644
index 000000000..8adf5f7d4
--- /dev/null
+++ b/src/health/health.d/kubelet.conf
@@ -0,0 +1,151 @@
+# 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: kubelet_node_config_error
+       on: k8s_kubelet.kubelet_node_config_error
+    class: Errors
+     type: Kubernetes
+component: Kubelet
+     calc: $experiencing_error
+    units: bool
+    every: 10s
+     warn: $this == 1
+    delay: down 1m multiplier 1.5 max 2h
+  summary: Kubelet node config error
+     info: The node is experiencing a configuration-related error (0: false, 1: true)
+       to: sysadmin
+
+# Failed Token() requests to the alternate token source
+
+ template: kubelet_token_requests
+       on: k8s_kubelet.kubelet_token_requests
+    class: Errors
+     type: Kubernetes
+component: Kubelet
+   lookup: sum -10s of failed
+    units: requests
+    every: 10s
+     warn: $this > 0
+    delay: down 1m multiplier 1.5 max 2h
+  summary: Kubelet failed token requests
+     info: Number of failed Token() requests to the alternate token source
+       to: sysadmin
+
+# Docker and runtime operation errors
+
+ template: kubelet_operations_error
+       on: k8s_kubelet.kubelet_operations_errors
+    class: Errors
+     type: Kubernetes
+component: Kubelet
+   lookup: sum -1m
+    units: errors
+    every: 10s
+     warn: $this > (($status >= $WARNING)  ? (0) : (20))
+    delay: up 30s down 1m multiplier 1.5 max 2h
+  summary: Kubelet runtime errors
+     info: Number of Docker or runtime operation errors
+       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: kubelet_1m_pleg_relist_latency_quantile_05
+       on: k8s_kubelet.kubelet_pleg_relist_latency_microseconds
+    class: Latency
+     type: Kubernetes
+component: Kubelet
+   lookup: average -1m unaligned of 0.5
+    units: microseconds
+    every: 10s
+     info: average Pod Lifecycle Event Generator relisting latency over the last minute (quantile 0.5)
+
+ template: kubelet_10s_pleg_relist_latency_quantile_05
+       on: k8s_kubelet.kubelet_pleg_relist_latency_microseconds
+    class: Latency
+     type: Kubernetes
+component: Kubelet
+   lookup: average -10s unaligned of 0.5
+     calc: $this * 100 / (($kubelet_1m_pleg_relist_latency_quantile_05 < 1000)?(1000):($kubelet_1m_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
+  summary: Kubelet relisting latency (quantile 0.5)
+     info: Ratio of average Pod Lifecycle Event Generator relisting latency over the last 10 seconds, \
+           compared to the last minute (quantile 0.5)
+       to: sysadmin
+
+# quantile 0.9
+
+ template: kubelet_1m_pleg_relist_latency_quantile_09
+       on: k8s_kubelet.kubelet_pleg_relist_latency_microseconds
+    class: Latency
+     type: Kubernetes
+component: Kubelet
+   lookup: average -1m unaligned of 0.9
+    units: microseconds
+    every: 10s
+     info: average Pod Lifecycle Event Generator relisting latency over the last minute (quantile 0.9)
+
+ template: kubelet_10s_pleg_relist_latency_quantile_09
+       on: k8s_kubelet.kubelet_pleg_relist_latency_microseconds
+    class: Latency
+     type: Kubernetes
+component: Kubelet
+   lookup: average -10s unaligned of 0.9
+     calc: $this * 100 / (($kubelet_1m_pleg_relist_latency_quantile_09 < 1000)?(1000):($kubelet_1m_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
+  summary: Kubelet relisting latency (quantile 0.9)
+     info: Ratio of average Pod Lifecycle Event Generator relisting latency over the last 10 seconds, \
+           compared to the last minute (quantile 0.9)
+       to: sysadmin
+
+# quantile 0.99
+
+ template: kubelet_1m_pleg_relist_latency_quantile_099
+       on: k8s_kubelet.kubelet_pleg_relist_latency_microseconds
+    class: Latency
+     type: Kubernetes
+component: Kubelet
+   lookup: average -1m unaligned of 0.99
+    units: microseconds
+    every: 10s
+     info: average Pod Lifecycle Event Generator relisting latency over the last minute (quantile 0.99)
+
+ template: kubelet_10s_pleg_relist_latency_quantile_099
+       on: k8s_kubelet.kubelet_pleg_relist_latency_microseconds
+    class: Latency
+     type: Kubernetes
+component: Kubelet
+   lookup: average -10s unaligned of 0.99
+     calc: $this * 100 / (($kubelet_1m_pleg_relist_latency_quantile_099 < 1000)?(1000):($kubelet_1m_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
+  summary: Kubelet relisting latency (quantile 0.99)
+     info: Ratio of average Pod Lifecycle Event Generator relisting latency over the last 10 seconds, \
+           compared to the last minute (quantile 0.99)
+       to: sysadmin