feat: Add native image handler backend

.github/workflows/pre-commit.yml

@@ -5,6 +5,9 @@ on:
   push:
     branches: [master]
 
+env:
+  GOFLAGS: -tags=containers_image_openpgp,exclude_graphdriver_btrfs,btrfs_noversion,exclude_graphdriver_devicemapper
+
 jobs:
   pre-commit:
     runs-on: ubuntu-latest
@@ -27,5 +30,3 @@ jobs:
       - name: Install dependencies
         run: sudo apt-get update && sudo apt-get install -y libdevmapper-dev libbtrfs-dev
       - uses: pre-commit/action@v3.0.0
-        with:
-          token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/test.yml

@@ -14,6 +14,9 @@ concurrency:
   group: ${{ github.ref }}
   cancel-in-progress: true
 
+env:
+  GOFLAGS: -tags=containers_image_openpgp,exclude_graphdriver_btrfs,btrfs_noversion,exclude_graphdriver_devicemapper
+
 jobs:
 
   lint:

.goreleaser.yml

@@ -17,6 +17,7 @@ builds:
     mod_timestamp: '{{ .CommitTimestamp }}'
     flags:
       - -trimpath
+      - -tags=containers_image_openpgp,exclude_graphdriver_btrfs,btrfs_noversion,exclude_graphdriver_devicemapper
     ldflags:
       - -s -w
 

.pre-commit-config.yaml

@@ -23,7 +23,7 @@ repos:
 #  - id: doctoc
 #    args: ['--title', '## Table of Contents']
 - repo:  https://github.com/golangci/golangci-lint
-  rev: a3336890904cd3efa4f1c7e3f82ce207fe125a6f # v1.46.2
+  rev: da04413a8a1eefb8c10161c9f2b558138d01815c # v1.52.2
   hooks:
     - id: golangci-lint
       args: ['--timeout', '5m']

Makefile

@@ -7,6 +7,7 @@ TEST_OPTIONS?=
 
 export GO111MODULE := on
 export GOPROXY = https://proxy.golang.org,direct
+export GOFLAGS		?=  -tags=containers_image_openpgp,exclude_graphdriver_btrfs,btrfs_noversion,exclude_graphdriver_devicemapper
 
 help: ## List targets & descriptions
 	@cat Makefile* | grep -E '^[a-zA-Z_-]+:.*?## .*$$' | sort | awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}'
@@ -30,3 +31,6 @@ lint: ## Run linters
 
 e2e: ## Run end-to-end tests
 	go test -v -run TestHelmDeployment ./test
+
+build: ## Run go build
+	go build

cmd/root.go

@@ -30,6 +30,7 @@ import (
 	"syscall"
 	"time"
 
+	"github.com/estahn/k8s-image-swapper/pkg/backend"
 	"github.com/estahn/k8s-image-swapper/pkg/config"
 	"github.com/estahn/k8s-image-swapper/pkg/registry"
 	"github.com/estahn/k8s-image-swapper/pkg/secrets"
@@ -63,10 +64,16 @@ A mutating webhook for Kubernetes, pointing the images to a new location.`,
 		//metricsRec := metrics.NewPrometheus(promReg)
 		log.Trace().Interface("config", cfg).Msg("config")
 
+		var imageBackend backend.Backend = backend.NewSkopeo()
+		if cfg.NativeBackend {
+			log.Warn().Msg("experimental native image backend enabled")
+			imageBackend = backend.NewNative()
+		}
+
 		// Create registry clients for source registries
 		sourceRegistryClients := []registry.Client{}
 		for _, reg := range cfg.Source.Registries {
-			sourceRegistryClient, err := registry.NewClient(reg)
+			sourceRegistryClient, err := registry.NewClient(reg, imageBackend)
 			if err != nil {
 				log.Err(err).Msgf("error connecting to source registry at %s", reg.Domain())
 				os.Exit(1)
@@ -75,7 +82,7 @@ A mutating webhook for Kubernetes, pointing the images to a new location.`,
 		}
 
 		// Create a registry client for private target registry
-		targetRegistryClient, err := registry.NewClient(cfg.Target)
+		targetRegistryClient, err := registry.NewClient(cfg.Target, imageBackend)
 		if err != nil {
 			log.Err(err).Msgf("error connecting to target registry at %s", cfg.Target.Domain())
 			os.Exit(1)
@@ -207,6 +214,7 @@ func init() {
 	rootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.k8s-image-swapper.yaml)")
 	rootCmd.PersistentFlags().StringVar(&cfg.LogLevel, "log-level", "info", "Only log messages with the given severity or above. Valid levels: [debug, info, warn, error, fatal]")
 	rootCmd.PersistentFlags().StringVar(&cfg.LogFormat, "log-format", "json", "Format of the log messages. Valid levels: [json, console]")
+	rootCmd.PersistentFlags().BoolVar(&cfg.NativeBackend, "native-backend", false, "Native backend is a experimental image handler to replace the skopeo based binary execution")
 
 	// Cobra also supports local flags, which will only run
 	// when this action is called directly.
@@ -215,6 +223,7 @@ func init() {
 	rootCmd.Flags().StringVar(&cfg.TLSCertFile, "tls-cert-file", "", "File containing the TLS certificate")
 	rootCmd.Flags().StringVar(&cfg.TLSKeyFile, "tls-key-file", "", "File containing the TLS private key")
 	rootCmd.Flags().BoolVar(&cfg.DryRun, "dry-run", true, "If true, print the action taken without taking it")
+
 }
 
 // initConfig reads in config file and ENV variables if set.

go.mod

@@ -29,6 +29,8 @@ require (
 	sigs.k8s.io/yaml v1.3.0 // indirect
 )
 
+require github.com/containers/common v0.51.1
+
 require (
 	cloud.google.com/go v0.110.0 // indirect
 	cloud.google.com/go/compute v1.18.0 // indirect
@@ -39,8 +41,11 @@ require (
 	github.com/BurntSushi/toml v1.2.1 // indirect
 	github.com/Microsoft/go-winio v0.6.0 // indirect
 	github.com/Microsoft/hcsshim v0.9.6 // indirect
+	github.com/VividCortex/ewma v1.2.0 // indirect
+	github.com/acarl005/stripansi v0.0.0-20180116102854-5a71ef0e047d // indirect
 	github.com/agext/levenshtein v1.2.3 // indirect
 	github.com/apparentlymart/go-textseg/v13 v13.0.0 // indirect
+	github.com/asaskevich/govalidator v0.0.0-20210307081110-f21760c49a8d // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/bgentry/go-netrc v0.0.0-20140422174119-9fd32a8b3d3d // indirect
 	github.com/boombuler/barcode v1.0.1-0.20190219062509-6c824513bacc // indirect
@@ -51,6 +56,7 @@ require (
 	github.com/containers/ocicrypt v1.1.7 // indirect
 	github.com/containers/storage v1.45.3 // indirect
 	github.com/cpuguy83/go-md2man/v2 v2.0.2 // indirect
+	github.com/cyberphone/json-canonicalization v0.0.0-20220623050100-57a0ce2678a7 // indirect
 	github.com/cyphar/filepath-securejoin v0.2.3 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/docker/distribution v2.8.1+incompatible // indirect
@@ -64,15 +70,23 @@ require (
 	github.com/ghodss/yaml v1.0.0 // indirect
 	github.com/go-errors/errors v1.0.2-0.20180813162953-d98b870cc4e0 // indirect
 	github.com/go-logr/logr v1.2.3 // indirect
+	github.com/go-openapi/analysis v0.21.4 // indirect
+	github.com/go-openapi/errors v0.20.3 // indirect
 	github.com/go-openapi/jsonpointer v0.19.5 // indirect
 	github.com/go-openapi/jsonreference v0.20.0 // indirect
+	github.com/go-openapi/loads v0.21.2 // indirect
+	github.com/go-openapi/runtime v0.24.1 // indirect
+	github.com/go-openapi/spec v0.20.7 // indirect
+	github.com/go-openapi/strfmt v0.21.3 // indirect
 	github.com/go-openapi/swag v0.22.3 // indirect
+	github.com/go-openapi/validate v0.22.0 // indirect
 	github.com/go-sql-driver/mysql v1.5.0 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
 	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
 	github.com/golang/protobuf v1.5.2 // indirect
 	github.com/google/gnostic v0.5.7-v3refs // indirect
 	github.com/google/go-cmp v0.5.9 // indirect
+	github.com/google/go-containerregistry v0.12.1 // indirect
 	github.com/google/go-intervals v0.0.2 // indirect
 	github.com/google/uuid v1.3.0 // indirect
 	github.com/googleapis/enterprise-certificate-proxy v0.2.3 // indirect
@@ -90,18 +104,21 @@ require (
 	github.com/hashicorp/terraform-json v0.13.0 // indirect
 	github.com/imdario/mergo v0.3.13 // indirect
 	github.com/inconshreveable/mousetrap v1.0.1 // indirect
-	github.com/jinzhu/copier v0.0.0-20190924061706-b57f9002281a // indirect
+	github.com/jinzhu/copier v0.3.5 // indirect
 	github.com/josharian/intern v1.0.0 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/klauspost/compress v1.15.15 // indirect
 	github.com/klauspost/pgzip v1.2.6-0.20220930104621-17e8dac29df8 // indirect
+	github.com/letsencrypt/boulder v0.0.0-20221109233200-85aa52084eaf // indirect
 	github.com/magiconair/properties v1.8.7 // indirect
 	github.com/mailru/easyjson v0.7.7 // indirect
-	github.com/mattn/go-colorable v0.1.12 // indirect
-	github.com/mattn/go-isatty v0.0.14 // indirect
+	github.com/mattn/go-colorable v0.1.13 // indirect
+	github.com/mattn/go-isatty v0.0.16 // indirect
+	github.com/mattn/go-runewidth v0.0.14 // indirect
 	github.com/mattn/go-shellwords v1.0.12 // indirect
 	github.com/mattn/go-zglob v0.0.2-0.20190814121620-e3c945676326 // indirect
 	github.com/matttproud/golang_protobuf_extensions v1.0.2-0.20181231171920-c182affec369 // indirect
+	github.com/miekg/pkcs11 v1.1.1 // indirect
 	github.com/mistifyio/go-zfs/v3 v3.0.0 // indirect
 	github.com/mitchellh/go-testing-interface v1.14.1 // indirect
 	github.com/mitchellh/go-wordwrap v1.0.1 // indirect
@@ -111,36 +128,49 @@ require (
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
+	github.com/oklog/ulid v1.3.1 // indirect
 	github.com/opencontainers/go-digest v1.0.0 // indirect
 	github.com/opencontainers/image-spec v1.1.0-rc2 // indirect
 	github.com/opencontainers/runc v1.1.5 // indirect
-	github.com/opencontainers/runtime-spec v1.0.3-0.20210326190908-1c3f411f0417 // indirect
+	github.com/opencontainers/runtime-spec v1.0.3-0.20220825212826-86290f6a00fb // indirect
 	github.com/opencontainers/selinux v1.10.2 // indirect
 	github.com/ostreedev/ostree-go v0.0.0-20210805093236-719684c64e4f // indirect
 	github.com/pelletier/go-toml/v2 v2.0.6 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/pquerna/otp v1.2.0 // indirect
+	github.com/proglottis/gpgme v0.1.3 // indirect
 	github.com/prometheus/client_model v0.3.0 // indirect
 	github.com/prometheus/common v0.37.0 // indirect
 	github.com/prometheus/procfs v0.8.0 // indirect
+	github.com/rivo/uniseg v0.4.3 // indirect
 	github.com/robfig/cron/v3 v3.0.1 // indirect
 	github.com/russross/blackfriday/v2 v2.1.0 // indirect
+	github.com/sigstore/fulcio v1.0.0 // indirect
+	github.com/sigstore/rekor v1.0.1 // indirect
+	github.com/sigstore/sigstore v1.5.1 // indirect
 	github.com/sirupsen/logrus v1.9.0 // indirect
 	github.com/spf13/afero v1.9.3 // indirect
 	github.com/spf13/cast v1.5.0 // indirect
 	github.com/spf13/jwalterweatherman v1.1.0 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
+	github.com/stefanberger/go-pkcs11uri v0.0.0-20201008174630-78d3cae3a980 // indirect
 	github.com/stretchr/objx v0.5.0 // indirect
 	github.com/subosito/gotenv v1.4.2 // indirect
 	github.com/sylabs/sif/v2 v2.9.0 // indirect
 	github.com/syndtr/gocapability v0.0.0-20200815063812-42c35b437635 // indirect
 	github.com/tchap/go-patricia v2.3.0+incompatible // indirect
+	github.com/theupdateframework/go-tuf v0.5.2-0.20221207161717-9cb61d6e65f5 // indirect
+	github.com/titanous/rocacheck v0.0.0-20171023193734-afe73141d399 // indirect
 	github.com/tmccombs/hcl2json v0.3.3 // indirect
 	github.com/ulikunitz/xz v0.5.11 // indirect
-	github.com/urfave/cli v1.22.4 // indirect
+	github.com/urfave/cli v1.22.7 // indirect
 	github.com/vbatts/tar-split v0.11.2 // indirect
+	github.com/vbauerster/mpb/v7 v7.5.3 // indirect
 	github.com/zclconf/go-cty v1.9.1 // indirect
+	go.etcd.io/bbolt v1.3.6 // indirect
+	go.mongodb.org/mongo-driver v1.11.1 // indirect
+	go.mozilla.org/pkcs7 v0.0.0-20210826202110-33d05740a352 // indirect
 	go.opencensus.io v0.24.0 // indirect
 	golang.org/x/crypto v0.5.0 // indirect
 	golang.org/x/mod v0.8.0 // indirect
@@ -150,7 +180,7 @@ require (
 	golang.org/x/sys v0.6.0 // indirect
 	golang.org/x/term v0.6.0 // indirect
 	golang.org/x/text v0.8.0 // indirect
-	golang.org/x/time v0.1.0 // indirect
+	golang.org/x/time v0.2.0 // indirect
 	golang.org/x/tools v0.6.0 // indirect
 	golang.org/x/xerrors v0.0.0-20220907171357-04be3eba64a2 // indirect
 	gomodules.xyz/jsonpatch/v3 v3.0.1 // indirect
@@ -161,6 +191,7 @@ require (
 	google.golang.org/protobuf v1.29.1 // indirect
 	gopkg.in/inf.v0 v0.9.1 // indirect
 	gopkg.in/ini.v1 v1.67.0 // indirect
+	gopkg.in/square/go-jose.v2 v2.6.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 	k8s.io/klog/v2 v2.80.1 // indirect
 	k8s.io/kube-openapi v0.0.0-20221012153701-172d655c2280 // indirect