Moved from using Kubernetes' internal Cron scheduler to a pod based one due to unforeseen hangups. Also added a check if the MySQL server is available before continuing

service-royalroad-chapters/service-royalroad-chapters-cron.yaml

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+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: service-royalroad-chapters-cron
+  namespace: app-notifications
+spec:
+  serviceName: service-royalroad-chapters-cron
+  replicas: 1
+  selector:
+    matchLabels:
+      app: service-royalroad-chapters-cron
+  template:
+    metadata:
+      labels:
+        app: service-royalroad-chapters-cron
+    spec:
+      containers:
+        - name: cron
+          image: curlimages/curl:latest
+          command:
+            - /bin/sh
+            - -c
+            - |
+              echo "{\"timestamp\":\"$(date '+%Y-%m-%dT%H:%M:%S%z')\",\"event\":\"startup\"}"
+              while true; do
+                echo "{\"timestamp\":\"$(date '+%Y-%m-%dT%H:%M:%S%z')\",\"event\":\"curl start\"}"
+                curl -s -X GET --max-time 150 http://service-royalroad-chapters-internal:5000/royalroad
+                echo
+                echo "{\"timestamp\":\"$(date '+%Y-%m-%dT%H:%M:%S%z')\",\"event\":\"curl end\"}"
+                sleep 300
+              done