#!/usr/bin/env bash

## This script builds the Rancher server image exclusively, sans Dapper

set -eo pipefail
set -x

# variables
COMMIT=$(git rev-parse --short HEAD)
TAG="${TAG:-$(yq '.env.TAG | sub("-.*", "")' < .github/workflows/pull-request.yml)-${COMMIT}}"
OS="${OS:-linux}"
ARCH="${ARCH:-amd64}"
CATTLE_K3S_VERSION=$(grep -m1 'ENV CATTLE_K3S_VERSION' package/Dockerfile | awk '{print $3}')
CATTLE_KDM_BRANCH=$(grep -m1 'ARG CATTLE_KDM_BRANCH=' package/Dockerfile | cut -d '=' -f2)
RKE_VERSION=$(grep -m1 'github.com/rancher/rke' go.mod | awk '{print $2}')
if [[ -z "$RKE_VERSION" ]]; then
    RKE_VERSION=$(grep -m1 'github.com/rancher/rke' go.mod | awk '{print $4}')
fi
CATTLE_RANCHER_WEBHOOK_VERSION=$(yq '.webhookVersion' < build.yaml)
CATTLE_CSP_ADAPTER_MIN_VERSION=$(yq '.cspAdapterMinVersion' < build.yaml)
CATTLE_FLEET_VERSION=$(yq '.fleetVersion' < build.yaml)

# download airgap images and export it to a tarball
curl -Lf https://github.com/rancher/k3s/releases/download/${CATTLE_K3S_VERSION}/k3s-images.txt -o ./k3s-images.txt
AIRGAP_IMAGES=$(grep -e 'docker.io/rancher/mirrored-pause' -e 'docker.io/rancher/mirrored-coredns-coredns' ./k3s-images.txt)
xargs -n1 docker pull <<< "${AIRGAP_IMAGES}"
xargs -n2 docker save -o ./k3s-airgap-images.tar <<< "${AIRGAP_IMAGES}"

# download kontainer driver metadata
curl -sLf https://releases.rancher.com/kontainer-driver-metadata/${CATTLE_KDM_BRANCH}/data.json > ./data.json

# start the builds
docker buildx build \
  --build-arg VERSION="${TAG}" \
  --build-arg ARCH=${ARCH} \
  --build-arg COMMIT="${COMMIT}" \
  --build-arg RKE_VERSION=${RKE_VERSION} \
  --build-arg CATTLE_RANCHER_WEBHOOK_VERSION=${CATTLE_RANCHER_WEBHOOK_VERSION} \
  --build-arg CATTLE_CSP_ADAPTER_MIN_VERSION=${CATTLE_CSP_ADAPTER_MIN_VERSION} \
  --build-arg CATTLE_FLEET_VERSION=${CATTLE_FLEET_VERSION} \
  --tag rancher/rancher:${TAG} \
  --platform="${OS}/${ARCH}" \
  --file ./package/Dockerfile .

docker buildx build \
  --build-arg VERSION="${TAG}" \
  --build-arg ARCH=${ARCH} \
  --build-arg RANCHER_TAG=${TAG} \
  --build-arg RANCHER_IMAGE=rancher/rancher:${TAG} \
  --build-arg COMMIT="${COMMIT}" \
  --build-arg RKE_VERSION=${RKE_VERSION} \
  --build-arg CATTLE_RANCHER_WEBHOOK_VERSION=${CATTLE_RANCHER_WEBHOOK_VERSION} \
  --tag rancher/rancher-agent:${TAG} \
  --platform="${OS}/${ARCH}" \
  --file ./package/Dockerfile.agent .