set-image.sh

#!/bin/bash

function usage {
    echo " Description"
    echo " this shell script uses for when updating lots of images."
    echo ""
    echo " Usage:"
    echo "  $ ./set-image.sh SEARCH_NAME SEARCH_VERSION TARGET_VERSION"
    echo " * SEARCH_NAME:    query for container image name"
    echo " * SEARCH_VERSION: query for container image tag"
    echo " * TARGET_VERSION: target tag for set image command"
    exit 1
}

[ -z $1 ] && { usage; }

SEARCH_NAME=$1
SEARCH_VERSION=$2
TARGET_VERSION=$3

TARGETS=`kubectl get deployment --output=json | jq ".items[] | select(.spec.template.spec.containers[].image | test(\"${SEARCH_NAME}:${SEARCH_VERSION}\")) | .metadata.name" -r`

for target in ${TARGETS[@]}; do
    "kubectl set image deployment.v1.apps/$target ${SEARCH_NAME}=${SEARCH_NAME}:${TARGET_VERSION} --record"
done