davidul / kenv

Environment details in docker or k8s

KENV

Lists env variables of docker image or K8s pod. By default listen on port 9090.

Building docker image

docker build -t kenv .

Or use a make command

make build

Execution

You can run either in server mode or just simply command line. In server mode HTTP server will be started.

Simple execution

python kenv.py

Execute in docker

docker run kenv

Execute in docker in server mode

docker run -p 9090:9090 kenv --server=y

Query http://localhost:9090, sample response

{
    "sysinfo": {
        "os-uname": [
            "Linux",
            "431f4d701606",
            "5.10.104-linuxkit",
            "#1 SMP PREEMPT Thu Mar 17 17:05:54 UTC 2022",
            "aarch64"
        ],
        "os-name": "posix"
    },
    "environment": {
        "PATH": "/usr/local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
        "HOSTNAME": "431f4d701606",
        "LANG": "C.UTF-8",
        "GPG_KEY": "A035C8C19219BA821ECEA86B64E628F8D684696D",
        "PYTHON_VERSION": "3.10.5",
        "PYTHON_PIP_VERSION": "22.0.4",
        "PYTHON_SETUPTOOLS_VERSION": "58.1.0",
        "PYTHON_GET_PIP_URL": "https://github.com/pypa/get-pip/raw/49ca29908cfd49683da12f2d5a4fa5689539f9d9/public/get-pip.py",
        "PYTHON_GET_PIP_SHA256": "d077d469ce4c0beaf9cc97b73f8164ad20e68e0519f14dd886ce35d053721501",
        "HOME": "/root"
    }
}

Pass it to jq to get nice output

curl http://localhost:9090 | jq

K8s

Using minikube, start the cluster

minikube start

Load the image to the minikube

minikube image load kenv:latest

Apply the POD definition

kubectl apply -f pod.yml

Apply the SVC definition

kubectl apply -f service.yml

Query the service

curl 10.100.130.155:9090