// Copyright 2018 The Operator-SDK 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.

package scaffold

import (
	"path/filepath"

	"github.com/operator-framework/operator-sdk/pkg/scaffold/input"
)

const DockerfileFile = "Dockerfile"

type Dockerfile struct {
	input.Input
}

func (s *Dockerfile) GetInput() (input.Input, error) {
	if s.Path == "" {
		s.Path = filepath.Join(BuildDir, DockerfileFile)
	}
	s.TemplateBody = dockerfileTmpl
	return s.Input, nil
}

const dockerfileTmpl = `FROM alpine:3.8

ENV OPERATOR=/usr/local/bin/{{.ProjectName}} \
    USER_UID=1001 \
    USER_NAME={{.ProjectName}}

# install operator binary
COPY build/_output/bin/{{.ProjectName}} ${OPERATOR}

COPY build/bin /usr/local/bin
RUN  /usr/local/bin/user_setup

ENTRYPOINT ["/usr/local/bin/entrypoint"]

USER ${USER_UID}
`
