forked from LaconicNetwork/kompose
76 lines
2.4 KiB
Go
76 lines
2.4 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors All rights reserved
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package docker
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import (
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"path"
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dockerparser "github.com/novln/docker-parser"
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)
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// Image contains the basic information parsed from full image name
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// see github.com/novln/docker-parser Reference
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type Image struct {
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Name string // the image's name (ie: debian[:8.2])
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ShortName string // the image's name (ie: debian)
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Tag string // the image's tag (or digest)
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Registry string // the image's registry. (ie: host[:port])
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Repository string // the image's repository. (ie: registry/name)
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Remote string // the image's remote identifier. (ie: registry/name[:tag])
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}
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// NewImageFromParsed method returns the docker image from the docker parser reference
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func NewImageFromParsed(parsed *dockerparser.Reference) Image {
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return Image{
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Name: parsed.Name(),
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ShortName: parsed.ShortName(),
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Tag: parsed.Tag(),
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Registry: parsed.Registry(),
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Repository: parsed.Repository(),
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Remote: parsed.Remote(),
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}
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}
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// ParseImage Using https://github.com/novln/docker-parser in order to parse the appropriate name and registry.
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// 1. Return default registry when the registry is not specified from image
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// 2. Return target registry when the registry is specified from command line
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func ParseImage(fullImageName string, targetRegistry string) (Image, error) {
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var image Image
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// First parse to fill default fields for image
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// See github.com/novln/docker-parser/docker/reference.go
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parsedImage, err := dockerparser.Parse(fullImageName)
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if err != nil {
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return image, err
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}
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// Registry from command argument is high priority than parsed from name of image.
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if targetRegistry != "" {
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// Parse again for validating registry
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fullImageName = path.Join(targetRegistry, parsedImage.Name())
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parsedImage, err = dockerparser.Parse(fullImageName)
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if err != nil {
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return image, err
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}
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}
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image = NewImageFromParsed(parsedImage)
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return image, nil
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}
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