run-in-docker.sh

#!/bin/bash

# Copyright 2018 The Kubernetes Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

DEBUG=${DEBUG:-"false"}
if [ "$DEBUG" == "true" ]; then
  set -x
fi

RUNTIME=${RUNTIME:-"docker"}

set -o errexit
set -o nounset
set -o pipefail

# temporal directory for the /etc/ingress-controller directory
if [[ "$OSTYPE" == darwin* ]] && [[ "$RUNTIME" == podman ]]; then
  mkdir -p "tmp"
  INGRESS_VOLUME=$(pwd)/$(mktemp -d tmp/XXXXXX)
else
  INGRESS_VOLUME=$(mktemp -d)
  if [[ "$OSTYPE" == darwin* ]]; then
    INGRESS_VOLUME=/private$INGRESS_VOLUME
  fi
fi

# make sure directory for SSL cert storage exists under ingress volume
mkdir "${INGRESS_VOLUME}/ssl"

function cleanup {
  rm -rf "${INGRESS_VOLUME}"
}
trap cleanup EXIT

E2E_IMAGE=${E2E_IMAGE:-registry.k8s.io/ingress-nginx/e2e-test-runner:v20230623-d50c7193b@sha256:e5c68dc56934c273850bfb75c0348a2819756669baf59fcdce9e16771537b247}

if [[ "$RUNTIME" == podman ]]; then
  # Podman does not support both tag and digest
  E2E_IMAGE=$(echo $E2E_IMAGE | awk -F "@sha" '{print $1}')
fi

DOCKER_OPTS=${DOCKER_OPTS:-}
DOCKER_IN_DOCKER_ENABLED=${DOCKER_IN_DOCKER_ENABLED:-}

KUBE_ROOT=$(cd $(dirname "${BASH_SOURCE}")/.. && pwd -P)

FLAGS=$@

PKG=k8s.io/ingress-nginx
ARCH=${ARCH:-}
if [[ -z "$ARCH" ]]; then
  ARCH=$(go env GOARCH)
fi

# create output directory as current user to avoid problem with docker.
mkdir -p "${KUBE_ROOT}/bin" "${KUBE_ROOT}/bin/${ARCH}"

PLATFORM="${PLATFORM:-}"
if [[ -n "$PLATFORM" ]]; then
  PLATFORM_FLAG=--platform
else
  PLATFORM_FLAG=
fi

USER=${USER:-nobody}

#echo "..printing env & other vars to stdout"
#echo "HOSTNAME=`hostname`"
#uname -a
#env
#echo "DIND_ENABLED=$DOCKER_IN_DOCKER_ENABLED"
#echo "done..printing env & other vars to stdout"

if [[ "$DOCKER_IN_DOCKER_ENABLED" == "true" ]]; then
  echo "..reached DIND check TRUE block, inside run-in-docker.sh"
  echo "FLAGS=$FLAGS"
  #go env
  go install -mod=mod github.com/onsi/ginkgo/v2/ginkgo@v2.9.5
  find / -type f -name ginkgo 2>/dev/null
  which ginkgo
  /bin/bash -c "${FLAGS}"
else
  echo "Reached DIND check ELSE block, inside run-in-docker.sh"

  args="${PLATFORM_FLAG} ${PLATFORM} --tty --rm ${DOCKER_OPTS} -e DEBUG=${DEBUG} -e GOCACHE="/go/src/${PKG}/.cache" -e GOMODCACHE="/go/src/${PKG}/.modcache" -e DOCKER_IN_DOCKER_ENABLED="true" -v "${HOME}/.kube:${HOME}/.kube" -v "${KUBE_ROOT}:/go/src/${PKG}" -v "${KUBE_ROOT}/bin/${ARCH}:/go/bin/linux_${ARCH}" -v "${INGRESS_VOLUME}:/etc/ingress-controller/" -w "/go/src/${PKG}""

  if [[ "$RUNTIME" == "docker" ]]; then
    args="$args -v /var/run/docker.sock:/var/run/docker.sock"
  fi

  ${RUNTIME} run $args ${E2E_IMAGE} /bin/bash -c "${FLAGS}"
fi