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app
# Terraform generated
.terraform/
terraform.tfstate
terraform.tfstate.backup
terraform.tfstate.*.backup
.terraform.tfstate.lock.*
.terraform.lock.hcl

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# `image-copy`
This sets up a Cloud Run app to listen for `registry.push` events to a private Chainguard Registry group, and mirrors those new images to a repository in Google Artifact Registry.
The Terraform does everything:
- builds the mirroring app into an image using `ko_build`
- deploys the app to a Cloud Run service
- sets up a Chainguard Identity with permissions to pull from the private cgr.dev repo
- allows the Cloud Run service's SA to assume the puller identity
- sets up a subscription to notify the Cloud Run service when pushes happen to cgr.dev

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/*
Copyright 2022 Chainguard, Inc.
SPDX-License-Identifier: Apache-2.0
*/
package main
// NOTE: these types will eventually be made available as part of a Chainguard
// SDK along with our API clients.
// Occurrence is the CloudEvent payload for events.
type Occurrence struct {
Actor *Actor `json:"actor,omitempty"`
// Body is the resource that was created.
// For this sample, it will always be RegistryPush.
Body RegistryPush `json:"body,omitempty"`
}
// Actor is the event payload form of which identity was responsible for the
// event.
type Actor struct {
// Subject is the identity that triggered this event.
Subject string `json:"subject"`
// Actor contains the name/value pairs for each of the claims that were
// validated to assume the identity whose UIDP appears in Subject above.
Actor map[string]string `json:"act,omitempty"`
}
// ChangedEventType is the cloudevents event type for registry push events.
const PushEventType = "dev.chainguard.registry.push.v1"
// RegistryPush describes an item being pushed to the registry.
type RegistryPush struct {
// Repository identifies the repository being pushed
Repository string `json:"repository"`
// Tag holds the tag being pushed, if there is one.
Tag string `json:"tag,omitempty"`
// Digest holds the digest being pushed.
// Digest will hold the sha256 of the content being pushed, whether that is
// a blob or a manifest.
Digest string `json:"digest"`
// Type determines whether the object being pushed is a manifest or blob.
Type string `json:"type"`
// When holds when the push occurred.
//When civil.DateTime `json:"when"`
// Location holds the detected approximate location of the client who pulled.
// For example, "ColumbusOHUS" or "Minato City13JP".
Location string `json:"location"`
// UserAgent holds the user-agent of the client who pulled.
UserAgent string `json:"user_agent" bigquery:"user_agent"`
Error *Error `json:"error,omitempty"`
}
type Error struct {
Status int `json:"status"`
Code string `json:"code"`
Message string `json:"message"`
}

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/*
Copyright 2022 Chainguard, Inc.
SPDX-License-Identifier: Apache-2.0
*/
package main
import (
"context"
"fmt"
"io"
"log"
"net/http"
"strings"
"cloud.google.com/go/compute/metadata"
cloudevents "github.com/cloudevents/sdk-go/v2"
cehttp "github.com/cloudevents/sdk-go/v2/protocol/http"
"github.com/coreos/go-oidc/v3/oidc"
"github.com/google/go-containerregistry/pkg/authn"
"github.com/google/go-containerregistry/pkg/crane"
"github.com/google/go-containerregistry/pkg/name"
"github.com/google/go-containerregistry/pkg/v1/google"
"github.com/kelseyhightower/envconfig"
"google.golang.org/api/idtoken"
)
type envConfig struct {
Issuer string `envconfig:"ISSUER_URL" required:"true"`
Group string `envconfig:"GROUP" required:"true"`
Identity string `envconfig:"IDENTITY" required:"true"`
Port int `envconfig:"PORT" default:"8080" required:"true"`
DstRepo string `envconfig:"DST_REPO" required:"true"` // Fully qualified at this point.
}
var location, sa string
var srcRepo name.Repository
func init() {
var err error
location, err = metadata.Zone()
if err != nil {
log.Panicf("getting location: %v", err)
}
sa, err = metadata.Email("default")
if err != nil {
log.Panicf("getting SA: %v", err)
}
}
func main() {
var env envConfig
if err := envconfig.Process("", &env); err != nil {
log.Fatalf("failed to process env var: %s", err)
}
log.Printf("env: %+v", env)
log.Printf("location: %s", location)
log.Printf("sa: %s", sa)
c, err := cloudevents.NewClientHTTP(cloudevents.WithPort(env.Port),
// We need to infuse the request onto context, so we can
// authenticate requests.
cehttp.WithRequestDataAtContextMiddleware())
if err != nil {
log.Fatalf("failed to create client, %v", err)
}
ctx := context.Background()
// Construct a verifier that ensures tokens are issued by the Chainguard
// issuer we expect and are intended for a customer webhook.
provider, err := oidc.NewProvider(ctx, env.Issuer)
if err != nil {
log.Fatalf("failed to create provider: %v", err)
}
verifier := provider.Verifier(&oidc.Config{
ClientID: "customer",
})
receiver := func(ctx context.Context, event cloudevents.Event) error {
// We expect Chainguard webhooks to pass an Authorization header.
auth := strings.TrimPrefix(cehttp.RequestDataFromContext(ctx).Header.Get("Authorization"), "Bearer ")
if auth == "" {
return cloudevents.NewHTTPResult(http.StatusUnauthorized, "Unauthorized")
}
// Verify that the token is well-formed, and in fact intended for us!
if tok, err := verifier.Verify(ctx, auth); err != nil {
return cloudevents.NewHTTPResult(http.StatusForbidden, "unable to verify token: %w", err)
} else if !strings.HasPrefix(tok.Subject, "webhook:") {
return cloudevents.NewHTTPResult(http.StatusForbidden, "subject should be from the Chainguard webhook component, got: %s", tok.Subject)
} else if group := strings.TrimPrefix(tok.Subject, "webhook:"); group != env.Group {
return cloudevents.NewHTTPResult(http.StatusForbidden, "this token is intended for %s, wanted one for %s", group, env.Group)
}
// We are handling a specific event type, so filter the rest.
if event.Type() != PushEventType {
return nil
}
data := Occurrence{}
if err := event.DataAs(&data); err != nil {
return cloudevents.NewHTTPResult(http.StatusInternalServerError, "unable to unmarshal data: %w", err)
}
log.Printf("got event: %+v", data)
src := "cgr.dev/" + data.Body.Repository
dst := env.DstRepo
if err := crane.Copy(src, dst,
crane.WithAuthFromKeychain(authn.NewMultiKeychain(
google.Keychain,
cgKeychain{env.Issuer, env.Identity},
))); err != nil {
return fmt.Errorf("copying image: %w", err)
}
return nil
}
if err := c.StartReceiver(ctx, func(ctx context.Context, event cloudevents.Event) error {
// This thunk simply wraps the main receiver in one that logs any errors
// we encounter.
err := receiver(ctx, event)
if err != nil {
log.Printf("SAW: %v", err)
}
return err
}); err != nil {
log.Fatal(err)
}
}
type cgKeychain struct {
issuer, identity string
}
func (k cgKeychain) Resolve(res authn.Resource) (authn.Authenticator, error) {
if res.RegistryStr() != "cgr.dev" {
return authn.Anonymous, nil
}
url := fmt.Sprintf("%s/sts/exchange?aud=%s&identity=%s", k.issuer, res.RegistryStr(), k.identity)
req, err := http.NewRequest(http.MethodPost, url, nil)
if err != nil {
return nil, err
}
client, err := idtoken.NewClient(context.Background(), k.issuer)
if err != nil {
return nil, err
}
resp, err := client.Do(req)
if err != nil {
return nil, err
}
defer resp.Body.Close()
all, _ := io.ReadAll(resp.Body)
if resp.StatusCode != http.StatusOK {
return nil, fmt.Errorf("got HTTP %d to /sts/exchange: %s", resp.StatusCode, all)
}
return &authn.Basic{
Username: "",
Password: string(all),
}, nil
}

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module github.com/imjasonh/terraform-playground/image-copy
go 1.20
require (
cloud.google.com/go/compute/metadata v0.2.3
github.com/cloudevents/sdk-go/v2 v2.13.0
github.com/coreos/go-oidc/v3 v3.5.0
github.com/google/go-containerregistry v0.14.0
github.com/kelseyhightower/envconfig v1.4.0
golang.org/x/oauth2 v0.6.0
google.golang.org/api v0.108.0
)
require (
cloud.google.com/go/compute v1.18.0 // indirect
github.com/containerd/stargz-snapshotter/estargz v0.14.3 // indirect
github.com/docker/cli v23.0.1+incompatible // indirect
github.com/docker/distribution v2.8.1+incompatible // indirect
github.com/docker/docker v23.0.1+incompatible // indirect
github.com/docker/docker-credential-helpers v0.7.0 // indirect
github.com/go-jose/go-jose/v3 v3.0.0 // indirect
github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e // indirect
github.com/golang/protobuf v1.5.3 // indirect
github.com/google/uuid v1.3.0 // indirect
github.com/googleapis/enterprise-certificate-proxy v0.2.1 // indirect
github.com/json-iterator/go v1.1.12 // indirect
github.com/klauspost/compress v1.16.0 // indirect
github.com/mitchellh/go-homedir v1.1.0 // indirect
github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
github.com/modern-go/reflect2 v1.0.2 // indirect
github.com/opencontainers/go-digest v1.0.0 // indirect
github.com/opencontainers/image-spec v1.1.0-rc2 // indirect
github.com/pkg/errors v0.9.1 // indirect
github.com/sirupsen/logrus v1.9.0 // indirect
github.com/vbatts/tar-split v0.11.2 // indirect
go.opencensus.io v0.24.0 // indirect
go.uber.org/atomic v1.9.0 // indirect
go.uber.org/goleak v1.1.12 // indirect
go.uber.org/multierr v1.7.0 // indirect
go.uber.org/zap v1.21.0 // indirect
golang.org/x/crypto v0.0.0-20220525230936-793ad666bf5e // indirect
golang.org/x/net v0.8.0 // indirect
golang.org/x/sync v0.1.0 // indirect
golang.org/x/sys v0.6.0 // indirect
golang.org/x/text v0.8.0 // indirect
golang.org/x/time v0.0.0-20220609170525-579cf78fd858 // indirect
google.golang.org/appengine v1.6.7 // indirect
google.golang.org/genproto v0.0.0-20230124163310-31e0e69b6fc2 // indirect
google.golang.org/grpc v1.51.0 // indirect
google.golang.org/protobuf v1.29.0 // indirect
gopkg.in/yaml.v2 v2.4.0 // indirect
)

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cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
cloud.google.com/go/compute v1.18.0 h1:FEigFqoDbys2cvFkZ9Fjq4gnHBP55anJ0yQyau2f9oY=
cloud.google.com/go/compute v1.18.0/go.mod h1:1X7yHxec2Ga+Ss6jPyjxRxpu2uu7PLgsOVXvgU0yacs=
cloud.google.com/go/compute/metadata v0.2.0/go.mod h1:zFmK7XCadkQkj6TtorcaGlCW1hT1fIilQDwofLpJ20k=
cloud.google.com/go/compute/metadata v0.2.3 h1:mg4jlk7mCAj6xXp9UJ4fjI9VUI5rubuGBW5aJ7UnBMY=
cloud.google.com/go/compute/metadata v0.2.3/go.mod h1:VAV5nSsACxMJvgaAuX6Pk2AawlZn8kiOGuCv6gTkwuA=
github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
github.com/benbjohnson/clock v1.1.0 h1:Q92kusRqC1XV2MjkWETPvjJVqKetz1OzxZB7mHJLju8=
github.com/benbjohnson/clock v1.1.0/go.mod h1:J11/hYXuz8f4ySSvYwY0FKfm+ezbsZBKZxNJlLklBHA=
github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
github.com/cloudevents/sdk-go/v2 v2.13.0 h1:2zxDS8RyY1/wVPULGGbdgniGXSzLaRJVl136fLXGsYw=
github.com/cloudevents/sdk-go/v2 v2.13.0/go.mod h1:xDmKfzNjM8gBvjaF8ijFjM1VYOVUEeUfapHMUX1T5To=
github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
github.com/containerd/stargz-snapshotter/estargz v0.14.3 h1:OqlDCK3ZVUO6C3B/5FSkDwbkEETK84kQgEeFwDC+62k=
github.com/containerd/stargz-snapshotter/estargz v0.14.3/go.mod h1:KY//uOCIkSuNAHhJogcZtrNHdKrA99/FCCRjE3HD36o=
github.com/coreos/go-oidc/v3 v3.5.0 h1:VxKtbccHZxs8juq7RdJntSqtXFtde9YpNpGn0yqgEHw=
github.com/coreos/go-oidc/v3 v3.5.0/go.mod h1:ecXRtV4romGPeO6ieExAsUK9cb/3fp9hXNz1tlv8PIM=
github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/docker/cli v23.0.1+incompatible h1:LRyWITpGzl2C9e9uGxzisptnxAn1zfZKXy13Ul2Q5oM=
github.com/docker/cli v23.0.1+incompatible/go.mod h1:JLrzqnKDaYBop7H2jaqPtU4hHvMKP+vjCwu2uszcLI8=
github.com/docker/distribution v2.8.1+incompatible h1:Q50tZOPR6T/hjNsyc9g8/syEs6bk8XXApsHjKukMl68=
github.com/docker/distribution v2.8.1+incompatible/go.mod h1:J2gT2udsDAN96Uj4KfcMRqY0/ypR+oyYUYmja8H+y+w=
github.com/docker/docker v23.0.1+incompatible h1:vjgvJZxprTTE1A37nm+CLNAdwu6xZekyoiVlUZEINcY=
github.com/docker/docker v23.0.1+incompatible/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk=
github.com/docker/docker-credential-helpers v0.7.0 h1:xtCHsjxogADNZcdv1pKUHXryefjlVRqWqIhk/uXJp0A=
github.com/docker/docker-credential-helpers v0.7.0/go.mod h1:rETQfLdHNT3foU5kuNkFR1R1V12OJRRO5lzt2D1b5X0=
github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
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github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
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github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
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github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
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github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
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github.com/googleapis/enterprise-certificate-proxy v0.2.1 h1:RY7tHKZcRlk788d5WSo/e83gOyyy742E8GSs771ySpg=
github.com/googleapis/enterprise-certificate-proxy v0.2.1/go.mod h1:AwSRAtLfXpU5Nm3pW+v7rGDHp09LsPtGY9MduiEsR9k=
github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=
github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
github.com/kelseyhightower/envconfig v1.4.0 h1:Im6hONhd3pLkfDFsbRgu68RDNkGF1r3dvMUtDTo2cv8=
github.com/kelseyhightower/envconfig v1.4.0/go.mod h1:cccZRl6mQpaq41TPp5QxidR+Sa3axMbJDNb//FQX6Gg=
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github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
github.com/mitchellh/go-homedir v1.1.0 h1:lukF9ziXFxDFPkA1vsr5zpc1XuPDn/wFntq5mG+4E0Y=
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github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
github.com/modern-go/reflect2 v1.0.2 h1:xBagoLtFs94CBntxluKeaWgTMpvLxC4ur3nMaC9Gz0M=
github.com/modern-go/reflect2 v1.0.2/go.mod h1:yWuevngMOJpCy52FWWMvUC8ws7m/LJsjYzDa0/r8luk=
github.com/opencontainers/go-digest v1.0.0 h1:apOUWs51W5PlhuyGyz9FCeeBIOUDA/6nW8Oi/yOhh5U=
github.com/opencontainers/go-digest v1.0.0/go.mod h1:0JzlMkj0TRzQZfJkVvzbP0HBR3IKzErnv2BNG4W4MAM=
github.com/opencontainers/image-spec v1.1.0-rc2 h1:2zx/Stx4Wc5pIPDvIxHXvXtQFW/7XWJGmnM7r3wg034=
github.com/opencontainers/image-spec v1.1.0-rc2/go.mod h1:3OVijpioIKYWTqjiG0zfF6wvoJ4fAXGbjdZuI2NgsRQ=
github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
github.com/russross/blackfriday/v2 v2.0.1/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
github.com/shurcooL/sanitized_anchor_name v1.0.0/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc=
github.com/sirupsen/logrus v1.7.0/go.mod h1:yWOB1SBYBC5VeMP7gHvWumXLIWorT60ONWic61uBYv0=
github.com/sirupsen/logrus v1.9.0 h1:trlNQbNUG3OdDrDil03MCb1H2o9nJ1x4/5LYw7byDE0=
github.com/sirupsen/logrus v1.9.0/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ=
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
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github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
github.com/stretchr/testify v1.8.0 h1:pSgiaMZlXftHpm5L7V1+rVB+AZJydKsMxsQBIJw4PKk=
github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
github.com/urfave/cli v1.22.4/go.mod h1:Gos4lmkARVdJ6EkW0WaNv/tZAAMe9V7XWyB60NtXRu0=
github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6KllzawFIhcdPw=
github.com/vbatts/tar-split v0.11.2 h1:Via6XqJr0hceW4wff3QRzD5gAk/tatMw/4ZA7cTlIME=
github.com/vbatts/tar-split v0.11.2/go.mod h1:vV3ZuO2yWSVsz+pfFzDG/upWH1JhjOiEaWq6kXyQ3VI=
github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
go.opencensus.io v0.24.0 h1:y73uSU6J157QMP2kn2r30vwW1A2W2WFwSCGnAVxeaD0=
go.opencensus.io v0.24.0/go.mod h1:vNK8G9p7aAivkbmorf4v+7Hgx+Zs0yY+0fOtgBfjQKo=
go.uber.org/atomic v1.7.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
go.uber.org/atomic v1.9.0 h1:ECmE8Bn/WFTYwEW/bpKD3M8VtR/zQVbavAoalC1PYyE=
go.uber.org/atomic v1.9.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
go.uber.org/goleak v1.1.11/go.mod h1:cwTWslyiVhfpKIDGSZEM2HlOvcqm+tG4zioyIeLoqMQ=
go.uber.org/goleak v1.1.12 h1:gZAh5/EyT/HQwlpkCy6wTpqfH9H8Lz8zbm3dZh+OyzA=
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go.uber.org/multierr v1.6.0/go.mod h1:cdWPpRnG4AhwMwsgIHip0KRBQjJy5kYEpYjJxpXp9iU=
go.uber.org/multierr v1.7.0 h1:zaiO/rmgFjbmCXdSYJWQcdvOCsthmdaHfr3Gm2Kx4Ec=
go.uber.org/multierr v1.7.0/go.mod h1:7EAYxJLBy9rStEaz58O2t4Uvip6FSURkq8/ppBp95ak=
go.uber.org/zap v1.21.0 h1:WefMeulhovoZ2sYXz7st6K0sLj7bBhpiFaud4r4zST8=
go.uber.org/zap v1.21.0/go.mod h1:wjWOCqI0f2ZZrJF/UufIOkiC8ii6tm1iqIsLo76RfJw=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/crypto v0.0.0-20190911031432-227b76d455e7/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
golang.org/x/crypto v0.0.0-20220525230936-793ad666bf5e h1:T8NU3HyQ8ClP4SEE+KbFlg6n0NhuTsN4MyznaarGsZM=
golang.org/x/crypto v0.0.0-20220525230936-793ad666bf5e/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/net v0.0.0-20190603091049-60506f45cf65/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
golang.org/x/net v0.0.0-20201110031124-69a78807bb2b/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
golang.org/x/net v0.3.0/go.mod h1:MBQ8lrhLObU/6UmLb4fmbmk5OcyYmqtbGd/9yIeKjEE=
golang.org/x/net v0.4.0/go.mod h1:MBQ8lrhLObU/6UmLb4fmbmk5OcyYmqtbGd/9yIeKjEE=
golang.org/x/net v0.8.0 h1:Zrh2ngAOFYneWTAIAPethzeaQLuHwhuBkuV6ZiRnUaQ=
golang.org/x/net v0.8.0/go.mod h1:QVkue5JL9kW//ek3r6jTKnTFis1tRmNAW2P1shuFdJc=
golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
golang.org/x/oauth2 v0.3.0/go.mod h1:rQrIauxkUhJ6CuwEXwymO2/eh4xz2ZWF1nBkcxS+tGk=
golang.org/x/oauth2 v0.6.0 h1:Lh8GPgSKBfWSwFvtuWOfeI3aAAnbXTSutYxJiOJFgIw=
golang.org/x/oauth2 v0.6.0/go.mod h1:ycmewcwgD4Rpr3eZJLSB4Kyyljb3qDh40vJ8STE5HKw=
golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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golang.org/x/sync v0.1.0 h1:wsuoTGHzEhffawBOhz5CYhcrV4IdKZbEyZjBMuTp12o=
golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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golang.org/x/term v0.3.0/go.mod h1:q750SLmJuPmVoN1blW3UFBPREJfb1KmY3vwxfr+nFDA=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
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golang.org/x/text v0.8.0 h1:57P1ETyNKtuIjB4SRd15iJxuhj8Gc416Y78H3qgMh68=
golang.org/x/text v0.8.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
golang.org/x/time v0.0.0-20220609170525-579cf78fd858 h1:Dpdu/EMxGMFgq0CeYMh4fazTD2vtlZRYE7wyynxJb9U=
golang.org/x/time v0.0.0-20220609170525-579cf78fd858/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY=
golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.1.5/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
google.golang.org/api v0.108.0 h1:WVBc/faN0DkKtR43Q/7+tPny9ZoLZdIiAyG5Q9vFClg=
google.golang.org/api v0.108.0/go.mod h1:2Ts0XTHNVWxypznxWOYUeI4g3WdP9Pk2Qk58+a/O9MY=
google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
google.golang.org/appengine v1.6.7 h1:FZR1q0exgwxzPzp/aF+VccGrSfxfPpkBqjIIEq3ru6c=
google.golang.org/appengine v1.6.7/go.mod h1:8WjMMxjGQR8xUklV/ARdw2HLXBOI7O7uCIDZVag1xfc=
google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEYHJ7i3ixzK3sjbqSGDJWnxyFXZblF3eUsNvo=
google.golang.org/genproto v0.0.0-20230124163310-31e0e69b6fc2 h1:O97sLx/Xmb/KIZHB/2/BzofxBs5QmmR0LcihPtllmbc=
google.golang.org/genproto v0.0.0-20230124163310-31e0e69b6fc2/go.mod h1:RGgjbofJ8xD9Sq1VVhDM1Vok1vRONV+rg+CjzG4SZKM=
google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
google.golang.org/grpc v1.33.2/go.mod h1:JMHMWHQWaTccqQQlmk3MJZS+GWXOdAesneDmEnv2fbc=
google.golang.org/grpc v1.51.0 h1:E1eGv1FTqoLIdnBCZufiSHgKjlqG6fKFf6pPWtMTh8U=
google.golang.org/grpc v1.51.0/go.mod h1:wgNDFcnuBGmxLKI/qn4T+m5BtEBYXJPvibbUPsAIPww=
google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
google.golang.org/protobuf v1.22.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
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google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
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gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
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gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
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gotest.tools/v3 v3.0.3 h1:4AuOwCGf4lLR9u3YOe2awrHygurzhO/HeQ6laiA6Sx0=
honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=

19
image-copy/hack/update-codegen.sh Executable file
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@ -0,0 +1,19 @@
#!/usr/bin/env bash
# Copyright 2022 Chainguard, Inc.
# SPDX-License-Identifier: Apache-2.0
set -o errexit
set -o nounset
set -o pipefail
REPO_ROOT_DIR=$PWD/$(dirname "$0")/..
echo === Tidying up for Golang
go mod tidy -compat=1.17
echo === Generating for Golang
go generate ./...
# Make sure our dependencies are up-to-date
${REPO_ROOT_DIR}/hack/update-deps.sh

14
image-copy/hack/update-deps.sh Executable file
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@ -0,0 +1,14 @@
#!/usr/bin/env bash
# Copyright 2022 Chainguard, Inc.
# SPDX-License-Identifier: Apache-2.0
set -o errexit
set -o nounset
set -o pipefail
REPO_ROOT_DIR=$(dirname "$0")/..
pushd ${REPO_ROOT_DIR}
echo === Update Deps for Golang
go mod tidy -compat=1.17

115
image-copy/iac/main.tf Normal file
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terraform {
required_providers {
ko = {
source = "ko-build/ko"
}
google = {
source = "hashicorp/google"
}
chainguard = {
source = "chainguard/chainguard"
}
}
}
provider "google" {
project = var.project_id
}
resource "google_service_account" "image-copy" {
account_id = "${var.name}-image-copy"
}
resource "ko_build" "image" {
importpath = "github.com/imjasonh/terraform-playground/image-copy/cmd/app"
working_dir = path.module
}
resource "google_cloud_run_service" "image-copy" {
name = "${var.name}-image-copy"
location = var.location
template {
spec {
service_account_name = google_service_account.image-copy.email
containers {
image = ko_build.image.image_ref
env {
name = "ISSUER_URL"
value = "https://issuer.${var.env}"
}
env {
name = "GROUP"
value = var.group
}
env {
name = "IDENTITY"
value = chainguard_identity.puller-identity.id
}
env {
name = "DST_REPO"
value = "${var.location}-docker.pkg.dev/${var.project_id}/${var.dst_repo}"
}
}
}
}
}
data "google_iam_policy" "noauth" {
binding {
role = "roles/run.invoker"
members = [
"allUsers",
]
}
}
resource "google_cloud_run_service_iam_policy" "noauth" {
location = google_cloud_run_service.image-copy.location
service = google_cloud_run_service.image-copy.name
policy_data = data.google_iam_policy.noauth.policy_data
}
resource "google_artifact_registry_repository" "dst-repo" {
location = var.location
repository_id = var.dst_repo
description = "image-copy repository"
format = "DOCKER"
}
resource "google_artifact_registry_repository_iam_member" "member" {
location = google_artifact_registry_repository.dst-repo.location
repository = google_artifact_registry_repository.dst-repo.name
role = "roles/artifactregistry.writer"
member = "serviceAccount:${google_service_account.image-copy.email}"
}
# Create the identity for our Cloud Run service to assume.
resource "chainguard_identity" "puller-identity" {
parent_id = var.group
name = "image-copy cgr puller"
claim_match {
issuer = "https://accounts.google.com"
subject = google_service_account.image-copy.unique_id
}
}
# Look up the registry.pull role to grant the identity.
data "chainguard_roles" "puller" {
name = "registry.pull"
}
# Grant the identity the "registry.pull" role on the root group.
resource "chainguard_rolebinding" "puller" {
identity = chainguard_identity.puller-identity.id
group = var.group
role = data.chainguard_roles.puller.items[0].id
}
# Create a subscription to notify the Cloud Run service on changes under the root group.
resource "chainguard_subscription" "subscription" {
parent_id = var.group
sink = google_cloud_run_service.image-copy.status[0].url
}

3
image-copy/iac/outputs.tf Normal file
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@ -0,0 +1,3 @@
output "url" {
value = google_cloud_run_service.image-copy.status[0].url
}

4
image-copy/iac/terraform.tfvars Normal file
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@ -0,0 +1,4 @@
name = "chainguard-dev"
project_id = "jason-chainguard"
group = "7bf08061e47a927f78ffa39cd6393f4a83ec6eb7"
dst_repo = "image-copy"

30
image-copy/iac/variables.tf Normal file
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@ -0,0 +1,30 @@
variable "name" {
description = "Name to prefix to created resources."
}
variable "project_id" {
type = string
description = "The project that will host this solution."
}
variable "location" {
type = string
default = "us-central1"
description = "Where to run the Cloud Run service."
}
variable "env" {
type = string
default = "enforce.dev"
description = "The Chainguard environment against which this solution is configured."
}
variable "group" {
type = string
description = "The Chainguard group that we are subscribing to policy violations under."
}
variable "dst_repo" {
type = string
description = "The destination repo where images should be copied to."
}