feat: support for passing env vars to modules

options.go

@@ -60,6 +60,15 @@ func WithHostConfigModifier(modifier func(hostConfig *container.HostConfig)) Cus
 	}
 }
 
+// WithEnv appends the environment variables to the container
+func WithEnv(env map[string]string) CustomizeRequestOption {
+	return func(req *GenericContainerRequest) {
+		for k, v := range env {
+			req.Env[k] = v
+		}
+	}
+}
+
 // WithImage sets the image for a container
 func WithImage(image string) CustomizeRequestOption {
 	return func(req *GenericContainerRequest) {

options_test.go

@@ -67,6 +67,24 @@ func TestOverrideContainerRequest(t *testing.T) {
 	assert.Equal(t, wait.ForLog("foo"), req.WaitingFor)
 }
 
+func TestWithEnv(t *testing.T) {
+	req := testcontainers.GenericContainerRequest{
+		ContainerRequest: testcontainers.ContainerRequest{
+			Env: map[string]string{
+				"FOO": "BAR",
+			},
+		},
+	}
+
+	testcontainers.WithEnv(map[string]string{
+		"BAR": "BAZ",
+		"FOO": "BAR2", // this should override the FOO env
+	})(&req)
+
+	assert.Equal(t, "BAR2", req.Env["FOO"])
+	assert.Equal(t, "BAZ", req.Env["BAR"])
+}
+
 type msgsLogConsumer struct {
 	msgs []string
 }