Simple application meant to debug on kubernetes cluster environment Displays a table with many metadata info that helps you to understand the environment that you are at.

Node base application using OS module to get:

• freemem
• homedir
• hostname
• platform
• release
• totalmem
• etc

And Kubernetes AWS pod API based on Metadata Service API:

Amazon Web Services (AWS)
http://169.254.169.254/latest/meta-data/ami-id
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-instance-metadata.html

Google Cloud
http://metadata.google.internal/computeMetadata/v1/instance/machine-type
https://cloud.google.com/compute/docs/storing-retrieving-metadata

Microsoft Azure
http://169.254.169.254/metadata/instance?api-version=2017-12-01
https://docs.microsoft.com/en-us/azure/virtual-machines/windows/instance-metadata-service

DigitalOcean
http://169.254.169.254/metadata/v1/
https://www.digitalocean.com/docs/droplets/resources/metadata/

OpenStack
http://169.254.169.254/openstack/latest https://blogs.vmware.com/openstack/introducing-the-metadata-service/

Rancher (Kubernetes)
http://rancher-metadata/2015-07-25/ https://rancher.com/introducing-rancher-metadata-service-for-docker/

http://169.254.169.254/latest/meta-data to get:

• ipv4
• ami id
• local host name
• public host name
• etc

Note: This application was made to Kubernetes on AWS, Even it works on a basic Docker environment, it will not be able to show all the parameters.

This app is stored on DOCKER HUB repository

In order to use it with docker, the container must know the docker socket, so it is mandatory that you map it with the volume.

docker run -d --name infog -p 4499:4499 -v /var/run/docker.sock:/var/run/docker.sock b4lddocker/deployment-kube-info-gatherer:latest

NOTE: If you are on Windows Docker-for-Desktop - you may whant to map like this instead.

docker run -d --name infog -p 4499:4499 -v //var/run/docker.sock:/var/run/docker.sock b4lddocker/deployment-kube-info-gatherer:latest

You can pull it and use it on you deployment.yaml.

apiVersion: apps/v1
kind: Deployment
metadata:
  name: kube-infog
  # namespace: infog
spec:
  replicas: 1
  selector:
    matchLabels:
      app: kube-infog
  template:
    metadata:
      labels:
        app: kube-infog
    spec:
      containers:
      - name: kube-infog
        image: b4lddocker/deployment-kube-info-gatherer:latest
        imagePullPolicy: Always
        ports:
          - containerPort: 4499 #Container/Application
            name: http
        volumeMounts:
        - name: dockersock
          mountPath: /var/run/docker.sock
      volumes:
      - name: dockersock
        hostPath:
          path: /var/run/docker.sock
---
apiVersion: v1
kind: Service
metadata:
  name: kube-infog-service
  # namespace: infog
  labels:
    app: kube-infog
spec:
  selector:
    app:  kube-infog
  type: NodePort
  ports:
  - name:  http
    port:    4499 #Same the Ingress/Loadbalancer
    targetPort: 4499 #Bind to container/Application
    

Or you can clone this repo and make it your own to build it.

docker build -f Dockerfile -t [ImageName]:[ImageVersion] .

• Node.js - Base Application Framework

Any change and pull request are welcome.

We use SemVer for versioning. For the versions available, see the tags on this repository.

• b4ld - Initial work - b4ld

This project is licensed under the MIT License

• Hat
• Inspiration
• l