From 0fd93a62f2d5300cb915f48af960114b163726cf Mon Sep 17 00:00:00 2001
From: Dmitriy Kononov <kononov.dmitriy@gmail.com>
Date: Mon, 18 Nov 2019 12:34:05 +0600
Subject: [PATCH] adding IGNORE_PODS

---
 README.md                                |  1 +
 config/custom-environment-variables.yaml |  1 +
 config/default.yaml                      |  2 ++
 src/monitors/longnotready.ts             | 16 ++++++++++++++++
 4 files changed, 20 insertions(+)

diff --git a/README.md b/README.md
index bd2924d..984e738 100644
--- a/README.md
+++ b/README.md
@@ -104,6 +104,7 @@ Additionally, the following environment variables can be used:
 - `TICK_RATE`: How often to update in milliseconds. (Default to 15000 or 15s)
 - `FLOOD_EXPIRE`: Repeat notification after this many milliseconds has passed after status returned to normal. (Default to 60000 or 60s)
 - `NOT_READY_MIN_TIME`: Time to wait after pod become not ready before notifying. (Default to 60000 or 60s)
+- `IGNORE_PODS`: Comma separated list with the name prefix of the pods to ignore. Example: `kube-proxy-gke,prometheus-prometheus-node-exporter`  (Default "")
 - `METRICS_CPU`: Enable/disable metric alerting on cpu (Default true)
 - `METRICS_MEMORY`: Enable/disable metric alerting on memory (Default true)
 - `METRICS_PERCENT`: Set percentage threshold on metric alerts (Default 80)
diff --git a/config/custom-environment-variables.yaml b/config/custom-environment-variables.yaml
index 1eff74f..326c9b8 100644
--- a/config/custom-environment-variables.yaml
+++ b/config/custom-environment-variables.yaml
@@ -24,6 +24,7 @@ metrics_requests:
   __format: json
 flood_expire: FLOOD_EXPIRE
 not_ready_min_time: NOT_READY_MIN_TIME
+ignore_pods: IGNORE_PODS
 
 slack_url: SLACK_URL
 slack_channel: SLACK_CHANNEL
diff --git a/config/default.yaml b/config/default.yaml
index 19e21de..6b8927a 100644
--- a/config/default.yaml
+++ b/config/default.yaml
@@ -21,6 +21,8 @@ interval: 15000
 flood_expire: 60000
 not_ready_min_time: 60000
 
+ignore_pods: ""
+
 metrics_cpu: true
 metrics_memory: true
 metrics_alert: 80 # percent
diff --git a/src/monitors/longnotready.ts b/src/monitors/longnotready.ts
index 5933f69..8ab0417 100644
--- a/src/monitors/longnotready.ts
+++ b/src/monitors/longnotready.ts
@@ -10,11 +10,13 @@ import {
 
 class PodLongNotReady extends EventEmitter {
 	minimumTime: number;
+	ignorePods: string;
 	alerted: { [key: string]: KubernetesPod };
 
 	constructor() {
 		super();
 		this.minimumTime = parseInt(config.get('not_ready_min_time'), 10);
+		this.ignorePods = config.get('ignore_pods');
 		this.alerted = {};
 	}
 
@@ -31,9 +33,23 @@ class PodLongNotReady extends EventEmitter {
 
 	async check() {
 		let pods = await kube.getWatchedPods();
+		const ignorePods = this.ignorePods.split(',')
 
 		for (let pod of pods) {
 			let messageProps: Partial<NotifyMessage> = {};
+			
+			// Ignore pod if exists in ingnore_pods array
+			let skipPod = false;
+			for (let ingnorePod of ignorePods) {
+				if (ingnorePod.length > 0 && pod.metadata.name.startsWith(ingnorePod.trim())) {
+					skipPod = true;
+					break;
+				}
+			}
+			if (skipPod) {
+				continue;
+			}
+
 			let annotations = pod.metadata.annotations;
 			if (annotations) {
 				// Ignore pod if the annotation is set and evaluates to true