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Modified Preorder Tree Traversal

Hierarchical data metrics that allows fast read operations on tree like structures.

Based on Left and Right fields that are set during tree traversal. When entered into node value is set to it's Left, when exiting node value is set to it's Right.

Sample implementation

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# to generate your dhparam.pem file, run in the terminal
openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048

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apiVersion: v1
kind: Pod
metadata:
  name: backend-pod-name # POD_NAME
  labels:
    application: backend # LABEL_KEY: LABEL_VALUE
spec:
  containers: # list of containers running in one Pod
    - name: main-container # CONTAINER_NAME
      image: my-backend # IMAGE_NAME

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apiVersion: v1
kind: Service
metadata:
  name: backend-service-name # SERVICE_NAME
  labels:
    # we pass selector, to list specific Services:
    # kubectl get svc --selector=KEY_SERVICE_SELECTOR
    application: backend # KEY_SERVICE_SELECTOR: VALUE_SERVICE_SELECTOR
spec:
  type: ClusterIP # options: ClusterIP, NodePort, LoadBalancer, ExternalName

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apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: backend-ingress-name # INGRESS_NAME
  labels:
    # we pass selector, to easy list specific Ingresses:
    # kubectl get ing --selector=KEY_INGRESS_SELECTOR
    application: backend # KEY_INGRESS_SELECTOR: VALUE_INGRESS_SELECTOR
  annotations:
    # you can apply additional annotations here, to enable cors for example

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apiVersion: apps/v1
kind: Deployment
metadata:
  name: backend-deployment-name # DEPLOYMENT_NAME
  labels:
    # we pass selector, to easy list specific Deployments:
    # kubectl get deployment --selector=KEY_DEPLOYMENT_SELECTOR
    application: backend # KEY_DEPLOYMENT_SELECTOR: VALUE_DEPLOYMENT_SELECTOR
    resource: deployment
spec: