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fix(registry): compatibility with WSL (#2705)
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* fix(registry): compatibility with WSL

Use local IP instead of localhost to access registry container
to address failures under WSL where the docker daemon can't
access localhost.

Refactor tests to use helpers and require reducing code and
simplifying the flow.

Add a default image which can be used be consumers.

Add HostAddress which returns host : port compatible with
WSL.

Add SetDockerAuthConfig and DockerAuthConfig methods that can
be used to easily configure authentication via DOCKER_AUTH_CONFIG
environment variable.

Fix container clean up which was missed in a number of case.

* docs: document new functions

* docs: wording

* docs: wording

Co-authored-by: Steven Hartland <stevenmhartland@gmail.com>

---------

Co-authored-by: Manuel de la Peña <mdelapenya@gmail.com>
Co-authored-by: Manuel de la Peña <social.mdelapenya@gmail.com>
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@stevenh @mdelapenya
3 people committed Aug 19, 2024
1 parent c44b1b2 commit aaa88d2
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Showing 7 changed files with 258 additions and 234 deletions.
18 changes: 17 additions & 1 deletion docs/modules/registry.md
View file
Original file line number Diff line number Diff line change
Expand Up @@ -39,6 +39,17 @@ func Run(ctx context.Context, img string, opts ...testcontainers.ContainerCustom
- `string`, the Docker image to use.
- `testcontainers.ContainerCustomizer`, a variadic argument for passing options.

### Docker Auth Config

The module exposes a way to set the Docker Auth Config for the Registry container, thanks to the `SetDockerAuthConfig` function.
This is useful when you need to pull images from a private registry. It basically sets the `DOCKER_AUTH_CONFIG` environment variable
with authentication for the given host, username and password sets. It returns a function to reset the environment back to the previous state,
which is helpful when you need to reset the environment after a test.

On the same hand, the module also exposes a way to build a Docker Auth Config for the Registry container, thanks to the `DockerAuthConfig` helper function.
This function returns a map of `AuthConfigs` including base64 encoded Auth field for the provided details.
It also accepts additional host, username and password triples to add more auth configurations.

### Container Options

When starting the Registry container, you can pass options in a variadic way to configure it.
Expand Down Expand Up @@ -80,10 +91,15 @@ Otherwise, the Registry will start but you won't be able to read any images from

The Registry container exposes the following methods:

#### HostAddress

This method returns the returns the host address including port of the Distribution Registry.
E.g. `localhost:32878`.

#### Address

This method returns the HTTP address string to connect to the Distribution Registry, so that you can use to connect to the Registry.
E.g. `http://localhost:32878/v2/_catalog`.
E.g. `http://localhost:32878`.

<!--codeinclude-->
[HTTP Address](../../modules/registry/registry_test.go) inside_block:httpAddress
Expand Down
73 changes: 26 additions & 47 deletions modules/registry/examples_test.go
View file
Original file line number Diff line number Diff line change
Expand Up @@ -4,7 +4,6 @@ import (
"context"
"fmt"
"log"
"os"
"path/filepath"

"github.com/testcontainers/testcontainers-go"
Expand Down Expand Up @@ -40,8 +39,9 @@ func ExampleRun() {

func ExampleRun_withAuthentication() {
// htpasswdFile {
ctx := context.Background()
registryContainer, err := registry.Run(
context.Background(),
ctx,
"registry:2.8.3",
registry.WithHtpasswdFile(filepath.Join("testdata", "auth", "htpasswd")),
registry.WithData(filepath.Join("testdata", "data")),
Expand All @@ -51,33 +51,21 @@ func ExampleRun_withAuthentication() {
log.Fatalf("failed to start container: %s", err)
}
defer func() {
if err := registryContainer.Terminate(context.Background()); err != nil {
if err := registryContainer.Terminate(ctx); err != nil {
log.Fatalf("failed to terminate container: %s", err) // nolint:gocritic
}
}()

registryPort, err := registryContainer.MappedPort(context.Background(), "5000/tcp")
registryHost, err := registryContainer.HostAddress(ctx)
if err != nil {
log.Fatalf("failed to get mapped port: %s", err) // nolint:gocritic
log.Fatalf("failed to get host: %s", err) // nolint:gocritic
}
strPort := registryPort.Port()

previousAuthConfig := os.Getenv("DOCKER_AUTH_CONFIG")

// make sure the Docker Auth credentials are set
// using the same as in the Docker Registry
// testuser:testpassword
os.Setenv("DOCKER_AUTH_CONFIG", `{
"auths": {
"localhost:`+strPort+`": { "username": "testuser", "password": "testpassword", "auth": "dGVzdHVzZXI6dGVzdHBhc3N3b3Jk" }
},
"credsStore": "desktop"
}`)
defer func() {
// reset the original state after the example.
os.Unsetenv("DOCKER_AUTH_CONFIG")
os.Setenv("DOCKER_AUTH_CONFIG", previousAuthConfig)
}()
cleanup, err := registry.SetDockerAuthConfig(registryHost, "testuser", "testpassword")
if err != nil {
log.Fatalf("failed to set docker auth config: %s", err) // nolint:gocritic
}
defer cleanup()

// build a custom redis image from the private registry,
// using RegistryName of the container as the registry.
Expand All @@ -87,7 +75,7 @@ func ExampleRun_withAuthentication() {
FromDockerfile: testcontainers.FromDockerfile{
Context: filepath.Join("testdata", "redis"),
BuildArgs: map[string]*string{
"REGISTRY_PORT": &strPort,
"REGISTRY_HOST": &registryHost,
},
PrintBuildLog: true,
},
Expand Down Expand Up @@ -118,47 +106,38 @@ func ExampleRun_withAuthentication() {
}

func ExampleRun_pushImage() {
ctx := context.Background()
registryContainer, err := registry.Run(
context.Background(),
"registry:2.8.3",
ctx,
registry.DefaultImage,
registry.WithHtpasswdFile(filepath.Join("testdata", "auth", "htpasswd")),
registry.WithData(filepath.Join("testdata", "data")),
)
if err != nil {
log.Fatalf("failed to start container: %s", err)
}
defer func() {
if err := registryContainer.Terminate(context.Background()); err != nil {
if err := registryContainer.Terminate(ctx); err != nil {
log.Fatalf("failed to terminate container: %s", err) // nolint:gocritic
}
}()

registryPort, err := registryContainer.MappedPort(context.Background(), "5000/tcp")
registryHost, err := registryContainer.HostAddress(ctx)
if err != nil {
log.Fatalf("failed to get mapped port: %s", err) // nolint:gocritic
log.Fatalf("failed to get host: %s", err) // nolint:gocritic
}
strPort := registryPort.Port()

previousAuthConfig := os.Getenv("DOCKER_AUTH_CONFIG")

// make sure the Docker Auth credentials are set
// using the same as in the Docker Registry
// testuser:testpassword
// Besides, we are also setting the authentication
// for both the registry and localhost to make sure
// the image is pushed to the private registry.
os.Setenv("DOCKER_AUTH_CONFIG", `{
"auths": {
"localhost:`+strPort+`": { "username": "testuser", "password": "testpassword", "auth": "dGVzdHVzZXI6dGVzdHBhc3N3b3Jk" },
"`+registryContainer.RegistryName+`": { "username": "testuser", "password": "testpassword", "auth": "dGVzdHVzZXI6dGVzdHBhc3N3b3Jk" }
},
"credsStore": "desktop"
}`)
defer func() {
// reset the original state after the example.
os.Unsetenv("DOCKER_AUTH_CONFIG")
os.Setenv("DOCKER_AUTH_CONFIG", previousAuthConfig)
}()
cleanup, err := registry.SetDockerAuthConfig(
registryHost, "testuser", "testpassword",
registryContainer.RegistryName, "testuser", "testpassword",
)
if err != nil {
log.Fatalf("failed to set docker auth config: %s", err) // nolint:gocritic
}
defer cleanup()

// build a custom redis image from the private registry,
// using RegistryName of the container as the registry.
Expand All @@ -174,7 +153,7 @@ func ExampleRun_pushImage() {
FromDockerfile: testcontainers.FromDockerfile{
Context: filepath.Join("testdata", "redis"),
BuildArgs: map[string]*string{
"REGISTRY_PORT": &strPort,
"REGISTRY_HOST": &registryHost,
},
Repo: repo,
Tag: tag,
Expand Down
7 changes: 6 additions & 1 deletion modules/registry/go.mod
View file
Original file line number Diff line number Diff line change
Expand Up @@ -3,7 +3,9 @@ module github.com/testcontainers/testcontainers-go/modules/registry
go 1.21

require (
github.com/cpuguy83/dockercfg v0.3.1
github.com/docker/docker v27.1.1+incompatible
github.com/stretchr/testify v1.9.0
github.com/testcontainers/testcontainers-go v0.32.0
)

Expand All @@ -15,7 +17,7 @@ require (
github.com/containerd/containerd v1.7.18 // indirect
github.com/containerd/log v0.1.0 // indirect
github.com/containerd/platforms v0.2.1 // indirect
github.com/cpuguy83/dockercfg v0.3.1 // indirect
github.com/davecgh/go-spew v1.1.1 // indirect
github.com/distribution/reference v0.6.0 // indirect
github.com/docker/go-connections v0.5.0 // indirect
github.com/docker/go-units v0.5.0 // indirect
Expand All @@ -26,6 +28,7 @@ require (
github.com/gogo/protobuf v1.3.2 // indirect
github.com/google/uuid v1.6.0 // indirect
github.com/klauspost/compress v1.17.4 // indirect
github.com/kr/text v0.2.0 // indirect
github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0 // indirect
github.com/magiconair/properties v1.8.7 // indirect
github.com/moby/docker-image-spec v1.3.1 // indirect
Expand All @@ -37,6 +40,7 @@ require (
github.com/opencontainers/go-digest v1.0.0 // indirect
github.com/opencontainers/image-spec v1.1.0 // indirect
github.com/pkg/errors v0.9.1 // indirect
github.com/pmezard/go-difflib v1.0.0 // indirect
github.com/power-devops/perfstat v0.0.0-20210106213030-5aafc221ea8c // indirect
github.com/shirou/gopsutil/v3 v3.23.12 // indirect
github.com/shoenig/go-m1cpu v0.1.6 // indirect
Expand All @@ -53,6 +57,7 @@ require (
golang.org/x/sys v0.21.0 // indirect
google.golang.org/genproto/googleapis/api v0.0.0-20240318140521-94a12d6c2237 // indirect
google.golang.org/genproto/googleapis/rpc v0.0.0-20240318140521-94a12d6c2237 // indirect
gopkg.in/yaml.v3 v3.0.1 // indirect
)

replace github.com/testcontainers/testcontainers-go => ../..
9 changes: 9 additions & 0 deletions modules/registry/go.sum
View file
Original file line number Diff line number Diff line change
Expand Up @@ -16,6 +16,7 @@ github.com/containerd/platforms v0.2.1 h1:zvwtM3rz2YHPQsF2CHYM8+KtB5dvhISiXh5ZpS
github.com/containerd/platforms v0.2.1/go.mod h1:XHCb+2/hzowdiut9rkudds9bE5yJ7npe7dG/wG+uFPw=
github.com/cpuguy83/dockercfg v0.3.1 h1:/FpZ+JaygUR/lZP2NlFI2DVfrOEMAIKP5wWEJdoYe9E=
github.com/cpuguy83/dockercfg v0.3.1/go.mod h1:sugsbF4//dDlL/i+S+rtpIWp+5h0BHJHfjj5/jFyUJc=
github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
github.com/creack/pty v1.1.18 h1:n56/Zwd5o6whRC5PMGretI4IdRLlmBXYNjScPaBgsbY=
github.com/creack/pty v1.1.18/go.mod h1:MOBLtS5ELjhRRrroQr9kyvTxUAFNvYEK993ew/Vr4O4=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
Expand Down Expand Up @@ -52,6 +53,10 @@ github.com/kisielk/errcheck v1.5.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI
github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
github.com/klauspost/compress v1.17.4 h1:Ej5ixsIri7BrIjBkRZLTo6ghwrEtHFk7ijlczPW4fZ4=
github.com/klauspost/compress v1.17.4/go.mod h1:/dCuZOvVtNoHsyb+cuJD3itjs3NbnF6KH9zAO4BDxPM=
github.com/kr/pretty v0.3.0 h1:WgNl7dwNpEZ6jJ9k1snq4pZsg7DOEN8hP9Xw0Tsjwk0=
github.com/kr/pretty v0.3.0/go.mod h1:640gp4NfQd8pI5XOwp5fnNeVWj67G7CFk/SaSQn7NBk=
github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0 h1:6E+4a0GO5zZEnZ81pIr0yLvtUWk2if982qA3F3QD6H4=
github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0/go.mod h1:zJYVVT2jmtg6P3p1VtQj7WsuWi/y4VnjVBn7F8KPB3I=
github.com/magiconair/properties v1.8.7 h1:IeQXZAiQcpL9mgcAe1Nu6cX9LLw6ExEHKjN0VQdvPDY=
Expand All @@ -78,6 +83,8 @@ github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZb
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/power-devops/perfstat v0.0.0-20210106213030-5aafc221ea8c h1:ncq/mPwQF4JjgDlrVEn3C11VoGHZN7m8qihwgMEtzYw=
github.com/power-devops/perfstat v0.0.0-20210106213030-5aafc221ea8c/go.mod h1:OmDBASR4679mdNQnz2pUhc2G8CO2JrUAVFDRBDP/hJE=
github.com/rogpeppe/go-internal v1.8.1 h1:geMPLpDpQOgVyCg5z5GoRwLHepNdb71NXb67XFkP+Eg=
github.com/rogpeppe/go-internal v1.8.1/go.mod h1:JeRgkft04UBgHMgCIwADu4Pn6Mtm5d4nPKWu0nJ5d+o=
github.com/shirou/gopsutil/v3 v3.23.12 h1:z90NtUkp3bMtmICZKpC4+WaknU1eXtp5vtbQ11DgpE4=
github.com/shirou/gopsutil/v3 v3.23.12/go.mod h1:1FrWgea594Jp7qmjHUUPlJDTPgcsb9mGnXDxavtikzM=
github.com/shoenig/go-m1cpu v0.1.6 h1:nxdKQNcEB6vzgA2E2bvzKIYRuNj7XNJ4S/aRSwKzFtM=
Expand Down Expand Up @@ -172,6 +179,8 @@ google.golang.org/grpc v1.64.1/go.mod h1:hiQF4LFZelK2WKaP6W0L92zGHtiQdZxk8CrSdvy
google.golang.org/protobuf v1.33.0 h1:uNO2rsAINq/JlFpSdYEKIZ0uKD/R9cpdv0T+yoGwGmI=
google.golang.org/protobuf v1.33.0/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
Expand Down
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