ldap checker pod

Dockerfile

FROM debian:stable-slim

ENV APT_OPTS="--no-install-recommends --yes"
RUN apt-get update \
        && apt-get install -y openldap-utils jq \
        && apt-get clean \
        && rm -r /var/lib/apt/lists /var/cache/apt/archives

COPY entrypoint.sh /
ENTRYPOINT [ "/entrypoint.sh" ]

entrypoint.sh

#!/usr/bin/env bash

checkLdap () {
      echo "Checking ${HOST}"
      # search -l 1  at most one second
      # -z 1 -  1 result
      # nettimeout 1 - allow 1 second max for the tcp timeout
      ldapsearch -h $1 -p $2 -b $3 -D $4 -w $5  -z 1 -l 1 -s base -o nettimeout=1 "objectclass=*"  > /dev/null
      echo "Response is $?"
}


while true; do
    checkLdap $HOST $PORT $BASE $DN $PASSWORD
    sleep 5
done

pod.yaml

apiVersion: v1
kind: Pod
metadata:
  name: ldap-test
  labels:
    name: ldap-test
spec:
  containers:
  - name: ldap-test
    image: "gcr.io/forgeops-public/ldap-test:latest"
    resources:
      limits:
        memory: 100Mi
    env:
    - name: HOST
      value: "ds-idrepo"
    - name: PORT
      value: "1389"
    - name: DN
      value: "uid=admin"
    - name: BASE
      value: "ou=identities"
    - name: PASSWORD
      value: "xxxxxx"