Openldap module support (#2117)

* Initial work on the openldap module

* chore: run make lint

* chore: run mod tidy

* Adding LoadLdif

* chore: run mod tidy

* Running go mod tidy

* Adding WithInitialLdif

---------

Co-authored-by: Manuel de la Peña <mdelapenya@gmail.com>

.github/dependabot.yml

@@ -198,6 +198,13 @@ updates:
         day: sunday
       open-pull-requests-limit: 3
       rebase-strategy: disabled
+    - package-ecosystem: gomod
+      directory: /modules/openldap
+      schedule:
+        interval: monthly
+        day: sunday
+      open-pull-requests-limit: 3
+      rebase-strategy: disabled
     - package-ecosystem: gomod
       directory: /modules/postgres
       schedule:

.github/workflows/ci.yml

@@ -104,7 +104,7 @@ jobs:
       matrix:
         go-version: [1.20.x, 1.x]
         platform: [ubuntu-latest, macos-latest]
-        module: [artemis, cassandra, clickhouse, compose, couchbase, elasticsearch, gcloud, inbucket, k3s, k6, kafka, localstack, mariadb, minio, mockserver, mongodb, mssql, mysql, nats, neo4j, postgres, pulsar, rabbitmq, redis, redpanda, vault]
+        module: [artemis, cassandra, clickhouse, compose, couchbase, elasticsearch, gcloud, inbucket, k3s, k6, kafka, localstack, mariadb, minio, mockserver, mongodb, mssql, mysql, nats, neo4j, openldap, postgres, pulsar, rabbitmq, redis, redpanda, vault]
         exclude:
           - go-version: 1.20.x
             module: compose

.vscode/.testcontainers-go.code-workspace

@@ -101,6 +101,10 @@
             "name": "module / neo4j",
             "path": "../modules/neo4j"
         },
+        {
+            "name": "module / openldap",
+            "path": "../modules/openldap"
+        },
         {
             "name": "module / postgres",
             "path": "../modules/postgres"

docs/modules/openldap.md

@@ -0,0 +1,69 @@
+# OpenLDAP
+
+Not available until the next release of testcontainers-go <a href="https://github.com/testcontainers/testcontainers-go"><span class="tc-version">:material-tag: main</span></a>
+
+## Introduction
+
+The Testcontainers module for OpenLDAP.
+
+## Adding this module to your project dependencies
+
+Please run the following command to add the OpenLDAP module to your Go dependencies:
+
+```
+go get github.com/testcontainers/testcontainers-go/modules/openldap
+```
+
+## Usage example
+
+<!--codeinclude-->
+[Creating a OpenLDAP container](../../modules/openldap/examples_test.go) inside_block:runOpenLDAPContainer
+<!--/codeinclude-->
+
+## Module reference
+
+The OpenLDAP module exposes one entrypoint function to create the OpenLDAP container, and this function receives two parameters:
+
+```golang
+func RunContainer(ctx context.Context, opts ...testcontainers.ContainerCustomizer) (*OpenLDAPContainer, error)
+```
+
+- `context.Context`, the Go context.
+- `testcontainers.ContainerCustomizer`, a variadic argument for passing options.
+
+### Container Options
+
+When starting the OpenLDAP container, you can pass options in a variadic way to configure it.
+
+#### Image
+
+If you need to set a different OpenLDAP Docker image, you can use `testcontainers.WithImage` with a valid Docker image
+for OpenLDAP. E.g. `testcontainers.WithImage("bitnami/openldap:2.6.6")`.
+
+{% include "../features/common_functional_options.md" %}
+
+### Container Methods
+
+The OpenLDAP container exposes the following methods:
+
+#### ConnectionString
+
+This method returns the connection string to connect to the OpenLDAP container, using the `1389` port.
+
+<!--codeinclude-->
+[Get connection string](../../modules/openldap/openldap_test.go) inside_block:connectionString
+<!--/codeinclude-->
+
+#### LoadLdif
+
+This method loads an ldif file in the OpenLDAP server.
+It returns and error if there is any problem with the ldif file loading process.
+
+<!--codeinclude-->
+[Load ldif](../../modules/openldap/openldap_test.go) inside_block:loadLdif
+<!--/codeinclude-->
+
+#### Initial Ldif
+
+If you would like to load an ldif at the initialization of the openldap container, you can use `WithInititialLdif` function.
+The file will be copied after the container is started and loaded in openldap.

mkdocs.yml

@@ -82,6 +82,7 @@ nav:
         - modules/mysql.md
         - modules/nats.md
         - modules/neo4j.md
+        - modules/openldap.md
         - modules/postgres.md
         - modules/pulsar.md
         - modules/rabbitmq.md

modules/openldap/Makefile

@@ -0,0 +1,5 @@
+include ../../commons-test.mk
+
+.PHONY: test
+test:
+	$(MAKE) test-openldap

modules/openldap/examples_test.go

@@ -0,0 +1,96 @@
+package openldap_test
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/go-ldap/ldap/v3"
+
+	"github.com/testcontainers/testcontainers-go"
+	"github.com/testcontainers/testcontainers-go/modules/openldap"
+)
+
+func ExampleRunContainer() {
+	// runOpenLDAPContainer {
+	ctx := context.Background()
+
+	openldapContainer, err := openldap.RunContainer(ctx, testcontainers.WithImage("bitnami/openldap:2.6.6"))
+	if err != nil {
+		panic(err)
+	}
+
+	// Clean up the container
+	defer func() {
+		if err := openldapContainer.Terminate(ctx); err != nil {
+			panic(err)
+		}
+	}()
+	// }
+
+	state, err := openldapContainer.State(ctx)
+	if err != nil {
+		panic(err)
+	}
+
+	fmt.Println(state.Running)
+
+	// Output:
+	// true
+}
+
+func ExampleRunContainer_connect() {
+	// connectToOpenLdap {
+	ctx := context.Background()
+
+	openldapContainer, err := openldap.RunContainer(ctx, testcontainers.WithImage("bitnami/openldap:2.6.6"))
+	if err != nil {
+		panic(err)
+	}
+
+	// Clean up the container
+	defer func() {
+		if err := openldapContainer.Terminate(ctx); err != nil {
+			panic(err)
+		}
+	}()
+
+	connectionString, err := openldapContainer.ConnectionString(ctx)
+	if err != nil {
+		panic(err)
+	}
+
+	client, err := ldap.DialURL(connectionString)
+	if err != nil {
+		panic(err)
+	}
+	defer client.Close()
+
+	// First bind with a read only user
+	err = client.Bind("cn=admin,dc=example,dc=org", "adminpassword")
+	if err != nil {
+		panic(err)
+	}
+
+	// Search for the given username
+	searchRequest := ldap.NewSearchRequest(
+		"dc=example,dc=org",
+		ldap.ScopeWholeSubtree, ldap.NeverDerefAliases, 0, 0, false,
+		"(&(objectClass=organizationalPerson)(uid=user01))",
+		[]string{"dn"},
+		nil,
+	)
+
+	sr, err := client.Search(searchRequest)
+	if err != nil {
+		panic(err)
+	}
+
+	if len(sr.Entries) != 1 {
+		panic("User does not exist or too many entries returned")
+	}
+
+	fmt.Println(sr.Entries[0].DN)
+
+	// Output:
+	// cn=user01,ou=users,dc=example,dc=org
+}

modules/openldap/go.mod

@@ -0,0 +1,64 @@
+module github.com/testcontainers/testcontainers-go/modules/openldap
+
+go 1.20
+
+require (
+	github.com/go-ldap/ldap/v3 v3.4.6
+	github.com/testcontainers/testcontainers-go v0.27.0
+)
+
+require (
+	dario.cat/mergo v1.0.0 // indirect
+	github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1 // indirect
+	github.com/Azure/go-ntlmssp v0.0.0-20221128193559-754e69321358 // indirect
+	github.com/Microsoft/go-winio v0.6.1 // indirect
+	github.com/Microsoft/hcsshim v0.11.4 // indirect
+	github.com/cenkalti/backoff/v4 v4.2.1 // indirect
+	github.com/containerd/containerd v1.7.12 // indirect
+	github.com/containerd/log v0.1.0 // indirect
+	github.com/cpuguy83/dockercfg v0.3.1 // indirect
+	github.com/distribution/reference v0.5.0 // indirect
+	github.com/docker/docker v25.0.1+incompatible // indirect
+	github.com/docker/go-connections v0.5.0 // indirect
+	github.com/docker/go-units v0.5.0 // indirect
+	github.com/felixge/httpsnoop v1.0.3 // indirect
+	github.com/go-asn1-ber/asn1-ber v1.5.5 // indirect
+	github.com/go-logr/logr v1.2.4 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
+	github.com/go-ole/go-ole v1.2.6 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/golang/protobuf v1.5.3 // indirect
+	github.com/google/uuid v1.5.0 // indirect
+	github.com/klauspost/compress v1.16.0 // indirect
+	github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0 // indirect
+	github.com/magiconair/properties v1.8.7 // indirect
+	github.com/moby/patternmatcher v0.6.0 // indirect
+	github.com/moby/sys/sequential v0.5.0 // indirect
+	github.com/moby/sys/user v0.1.0 // indirect
+	github.com/moby/term v0.5.0 // indirect
+	github.com/morikuni/aec v1.0.0 // indirect
+	github.com/opencontainers/go-digest v1.0.0 // indirect
+	github.com/opencontainers/image-spec v1.1.0-rc5 // indirect
+	github.com/pkg/errors v0.9.1 // 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
+	github.com/sirupsen/logrus v1.9.3 // indirect
+	github.com/tklauser/go-sysconf v0.3.12 // indirect
+	github.com/tklauser/numcpus v0.6.1 // indirect
+	github.com/yusufpapurcu/wmi v1.2.3 // indirect
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.45.0 // indirect
+	go.opentelemetry.io/otel v1.19.0 // indirect
+	go.opentelemetry.io/otel/metric v1.19.0 // indirect
+	go.opentelemetry.io/otel/trace v1.19.0 // indirect
+	golang.org/x/crypto v0.14.0 // indirect
+	golang.org/x/exp v0.0.0-20230510235704-dd950f8aeaea // indirect
+	golang.org/x/mod v0.11.0 // indirect
+	golang.org/x/sys v0.16.0 // indirect
+	golang.org/x/tools v0.10.0 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20230711160842-782d3b101e98 // indirect
+	google.golang.org/grpc v1.58.3 // indirect
+	google.golang.org/protobuf v1.31.0 // indirect
+)
+
+replace github.com/testcontainers/testcontainers-go => ../..