Kubernetes: Connect to Mongo POD + port-forward

kubernetes-connect-mongo.sh

#!/usr/bin/env bash

# https://gist.github.com/reduardo7/00928a0a50bf51f7c9ba218e95eb37c3

################# Connect to Mongo DB #################
# Params:
#   - Environment: uat/prod
#   - POD Name: Optional. Specific POD.
#
# Examples:
# ./connect-mongo.sh prod mongo-rs-mongodb-replicaset-1
# ./connect-mongo.sh uat
#
# Full example:
# MONGO_FORWARD_PID=$(timeout 300 kubernetes/connect-mongo.sh uat)
# mongorestore \
#   -h localhost:27017 \
#   --drop -d conversifiprod \
#   /opt/speakapp/backup/prod_latest/conversifiprod
# kill ${MONGO_FORWARD_PID}
#######################################################

SERVER_ENV=$1
MONGO_POD=$2

if [ -z "${SERVER_ENV}" ]; then
  echo 'Error! SERVER_ENV is required' >&2
  exit 1
fi

if [ -z "${MONGO_POD}" ]; then
  # get-mongo-master.sh => https://gist.github.com/reduardo7/c8ce682f7cb02f90168c5bec23fed53e
  MONGO_POD="$(./get-mongo-master.sh ${SERVER_ENV})"
fi

if [ -z "${MONGO_POD}" ]; then
  echo 'Error! MONGO_POD is required' >&2
  exit 1
fi

kubectl port-forward -n ${SERVER_ENV} ${MONGO_POD} 27017:27017 >/dev/null 2>&1 &
PROC_PID=$!

cat <<EOF >&2
# Kill with:
  $ ps --pid ${PROC_PID} >/dev/null 2>&1 && kill ${PROC_PID}
EOF

echo ${PROC_PID}