mirror of
https://github.com/GoogleContainerTools/kaniko
synced 2026-10-07 21:18:16 +02:00
Priya Wadhwa
64a0b1d75f
I added a KanikoStage to hold each stage of the Dockerfile along with information about each stage that would be useful later on. The new KanikoStage type holds the stage itself, along with some additional information: 1. FinalStage -- whether the current stage is the final stage 2. BaseImageStoredLocally/BaseImageIndex -- whether the base image for this stage is stored locally, and if so what the index of the base image is 3. SaveStage -- whether this stage needs to be saved for use in a future stage This is the first part of a larger refactor for building stages, which will later make it easier to add layer caching.
108 lines
2.6 KiB
Go
108 lines
2.6 KiB
Go
/*
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Copyright 2018 Google LLC
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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 util
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import (
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"bytes"
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"testing"
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"github.com/GoogleContainerTools/kaniko/pkg/config"
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"github.com/GoogleContainerTools/kaniko/testutil"
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"github.com/google/go-containerregistry/pkg/v1"
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"github.com/google/go-containerregistry/pkg/v1/empty"
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"github.com/moby/buildkit/frontend/dockerfile/instructions"
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"github.com/moby/buildkit/frontend/dockerfile/parser"
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)
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var (
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dockerfile = `
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FROM gcr.io/distroless/base:latest as base
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COPY . .
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FROM scratch as second
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ENV foopath context/foo
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COPY --from=0 $foopath context/b* /foo/
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FROM base
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ARG file
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COPY --from=second /foo $file`
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)
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func Test_StandardImage(t *testing.T) {
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stages, err := parse(dockerfile)
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if err != nil {
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t.Error(err)
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}
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original := retrieveRemoteImage
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defer func() {
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retrieveRemoteImage = original
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}()
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mock := func(image string) (v1.Image, error) {
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return nil, nil
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}
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retrieveRemoteImage = mock
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actual, err := RetrieveSourceImage(config.KanikoStage{
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Stage: stages[0],
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}, nil)
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testutil.CheckErrorAndDeepEqual(t, false, err, nil, actual)
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}
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func Test_ScratchImage(t *testing.T) {
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stages, err := parse(dockerfile)
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if err != nil {
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t.Error(err)
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}
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actual, err := RetrieveSourceImage(config.KanikoStage{
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Stage: stages[1],
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}, nil)
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expected := empty.Image
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testutil.CheckErrorAndDeepEqual(t, false, err, expected, actual)
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}
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func Test_TarImage(t *testing.T) {
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stages, err := parse(dockerfile)
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if err != nil {
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t.Error(err)
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}
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original := retrieveTarImage
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defer func() {
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retrieveTarImage = original
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}()
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mock := func(index int) (v1.Image, error) {
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return nil, nil
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}
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retrieveTarImage = mock
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actual, err := RetrieveSourceImage(config.KanikoStage{
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BaseImageStoredLocally: true,
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BaseImageIndex: 0,
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Stage: stages[2],
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}, nil)
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testutil.CheckErrorAndDeepEqual(t, false, err, nil, actual)
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}
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// parse parses the contents of a Dockerfile and returns a list of commands
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func parse(s string) ([]instructions.Stage, error) {
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p, err := parser.Parse(bytes.NewReader([]byte(s)))
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if err != nil {
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return nil, err
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}
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stages, _, err := instructions.Parse(p.AST)
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if err != nil {
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return nil, err
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}
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return stages, err
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}
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