image from Docker hub:

```bash
kubectl run -i --rm --restart=Never dummy --image=dockerqa/curl:ubuntu-trusty --command -- curl --silent httpbin:8000/html
kubectl run -i --rm --restart=Never dummy --image=dockerqa/curl:ubuntu-trusty --command -- curl --silent --head httpbin:8000/status/500
time kubectl run -i --rm --restart=Never dummy --image=dockerqa/curl:ubuntu-trusty --command -- curl --silent httpbin:8000/delay/5

[symlink] stderr 'go: test_sym.go: arguments must be package or module paths'
[symlink] rm test_sym.go

# argument has .go suffix, is a symlink and exists in sub-directory
[symlink] symlink test/test_sym.go -> test.go
[symlink] ! go get test/test_sym.go
[symlink] stderr 'go: test/test_sym.go exists as a file, but ''go get'' requires package arguments'
[symlink] rm test_sym.go

# argument has .go suffix, is a directory and exists
mkdir test_dir.go

			cat "/tmp/${site}_1.log"
			echo "==========================="
			cat "/tmp/${site}_2.log"
		done
	fi

	echo "Cleaning up instances of MinIO"
	pkill minio
	pkill -9 minio
	rm -rf /tmp/multisitea
	rm -rf /tmp/multisiteb
	rm -rf /tmp/data
}

catch

set -e
export MINIO_CI_CD=1
export MINIO_BROWSER=off
export MINIO_ROOT_USER="minio"
export MINIO_ROOT_PASSWORD="minio123"

function cleanup() {
	docker-compose -f docker-compose-site1.yaml rm -s -f || true
	docker-compose -f docker-compose-site2.yaml rm -s -f || true
	for volume in $(docker volume ls -q | grep minio); do
		docker volume rm ${volume} || true
	done

	docker system prune -f || true
	docker volume prune -f || true
	docker volume rm $(docker volume ls -q -f dangling=true) || true
}

cleanup

if [ ! -f ./mc ]; then

stdout 'pkg[/\\]mod[/\\]rsc.io[/\\]quote@v1.5.2'

# go mod verify should fail if we delete a file.
go mod verify
rm $GOPATH/pkg/mod/rsc.io/quote@v1.5.2/go.mod
! go mod verify

# 'go mod download' should not leave behind a directory or a .partial file
# if there is an error extracting the zip file.
rm $GOPATH/pkg/mod/rsc.io/quote@v1.5.2
cp empty $GOPATH/pkg/mod/cache/download/rsc.io/quote/@v/v1.5.2.zip
! go mod download

	MINIO_VERSION=dev /tmp/gopath/bin/docker-compose \
		-f "buildscripts/upgrade-tests/compose.yml" \
		rm || true

	for volume in $(docker volume ls -q | grep upgrade); do
		docker volume rm ${volume} || true
	done

	docker volume prune -f
	docker system prune -f || true
	docker volume prune -f || true
	docker volume rm $(docker volume ls -q -f dangling=true) || true
}

verify_checksum_after_heal() {
	local sum1

exec $WORK/tmp/a.exe
stderr 'linkXworked'
rm $WORK/tmp/a.exe

[!GOOS:windows] stop 'rest of the tests only apply to Windows'

# Replace '\' with '/' in GOPATH
exec ./run_go$GOEXE $GOPATH/src/my.pkg/main $GOPATH REPLACE_SLASH build -o $WORK/tmp/a.exe -ldflags -X=my.pkg.Text=linkXworked
exec $WORK/tmp/a.exe
stderr 'linkXworked'
rm $WORK/tmp/a.exe

# Apply identity function to GOPATH

	{
		echo ""
		echo "// ${file} is a test cert for dynamic admission controller."
		echo "var $file = []byte(\`$data\`)"
	} >> $outfile
done

# Clean up after we're done.
rm ./*.pem
rm ./*.csr
rm ./*.srl

echo hello | ./mc pipe sitea/delissue/hello --insecure

./mc version suspend sitea/delissue --insecure

./mc rm sitea/delissue/hello --insecure

./mc version enable sitea/delissue --insecure

echo hello | ./mc pipe sitea/delissue/hello --insecure

./mc version suspend sitea/delissue --insecure

./mc rm sitea/delissue/hello --insecure

count=$(./mc ls --versions sitea/delissue --insecure | wc -l)

echo 'Sign the cert for Istio CA.'
openssl x509 -req -days 36500 -in ca-cert.csr -sha256 -CA root-cert.pem -CAkey root-key.pem -CAcreateserial -out ca-cert.pem -extensions v3_req -extfile ca.cfg

rm ./*csr
rm ./*srl

echo 'Generate cert chain file.'
cp ca-cert.pem cert-chain.pem