github.com/GoogleContainerTools/kaniko@v1.23.0/pkg/buildcontext/buildcontext.go (about) 1 /* 2 Copyright 2018 Google LLC 3 4 Licensed under the Apache License, Version 2.0 (the "License"); 5 you may not use this file except in compliance with the License. 6 You may obtain a copy of the License at 7 8 http://www.apache.org/licenses/LICENSE-2.0 9 10 Unless required by applicable law or agreed to in writing, software 11 distributed under the License is distributed on an "AS IS" BASIS, 12 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 See the License for the specific language governing permissions and 14 limitations under the License. 15 */ 16 17 package buildcontext 18 19 import ( 20 "errors" 21 "strings" 22 23 "github.com/GoogleContainerTools/kaniko/pkg/constants" 24 "github.com/GoogleContainerTools/kaniko/pkg/util" 25 ) 26 27 const ( 28 TarBuildContextPrefix = "tar://" 29 ) 30 31 type BuildOptions struct { 32 GitBranch string 33 GitSingleBranch bool 34 GitRecurseSubmodules bool 35 InsecureSkipTLS bool 36 } 37 38 // BuildContext unifies calls to download and unpack the build context. 39 type BuildContext interface { 40 // Unpacks a build context and returns the directory where it resides 41 UnpackTarFromBuildContext() (string, error) 42 } 43 44 // GetBuildContext parses srcContext for the prefix and returns related buildcontext 45 // parser 46 func GetBuildContext(srcContext string, opts BuildOptions) (BuildContext, error) { 47 split := strings.SplitAfter(srcContext, "://") 48 if len(split) > 1 { 49 prefix := split[0] 50 context := split[1] 51 52 switch prefix { 53 case constants.GCSBuildContextPrefix: 54 return &GCS{context: srcContext}, nil 55 case constants.S3BuildContextPrefix: 56 return &S3{context: srcContext}, nil 57 case constants.LocalDirBuildContextPrefix: 58 return &Dir{context: context}, nil 59 case constants.GitBuildContextPrefix: 60 return &Git{context: context, opts: opts}, nil 61 case constants.HTTPSBuildContextPrefix: 62 if util.ValidAzureBlobStorageHost(srcContext) { 63 return &AzureBlob{context: srcContext}, nil 64 } 65 return &HTTPSTar{context: srcContext}, nil 66 case TarBuildContextPrefix: 67 return &Tar{context: context}, nil 68 } 69 } 70 return nil, errors.New("unknown build context prefix provided, please use one of the following: gs://, dir://, tar://, s3://, git://, https://") 71 }