kaniko.sh

#!/usr/bin/env bash
#
# A small bash wrapper to kaniko with a few assumptions built in.
set -euo pipefail

context=$1
dockerfile=$2
destination=$3
cache=true
cache_repo=$(echo "$destination" | cut -d : -f 1)-cache
shift 3

kaniko_args=(
  --dockerfile="${dockerfile}"
  --destination="${destination}"
  --context=dir:///workspace/
  --cache="${cache}"
  # ECR doesn't support sub-names so we need a second registry for the cache
  --cache-repo="${cache_repo}"
)

# Build
docker run \
  -v "${context}":/workspace \
  -v "$HOME"/.docker/config.json:/kaniko/.docker/config.json:ro \
  gcr.io/kaniko-project/executor:latest \
  "${kaniko_args[@]}" \
  "$@"