Add pass-through for entrypoint to ContainerRequest

container.go

@@ -9,6 +9,7 @@ import (
  "github.com/docker/docker/pkg/archive"
  "github.com/docker/go-connections/nat"
  "github.com/pkg/errors"
+
  "github.com/testcontainers/testcontainers-go/wait"
 )
 
@@ -69,6 +70,7 @@ type FromDockerfile struct {
 type ContainerRequest struct {
  FromDockerfile
  Image string
+ Entrypoint []string
  Env map[string]string
  ExposedPorts []string // allow specifying protocol info
  Cmd []string

docker.go

@@ -531,6 +531,7 @@ func (p *DockerProvider) CreateContainer(ctx context.Context, req ContainerReque
  }
 
  dockerInput := &container.Config{
+ Entrypoint: req.Entrypoint,
  Image: tag,
  Env: env,
  ExposedPorts: exposedPortSet,
@@ -600,7 +601,7 @@ func (p *DockerProvider) CreateContainer(ctx context.Context, req ContainerReque
  return c, nil
 }
 
-//attemptToPullImage tries to pull the image while respecting the ctx cancellations.
+// attemptToPullImage tries to pull the image while respecting the ctx cancellations.
 // Besides, if the image cannot be pulled due to ErrorNotFound then no need to retry but terminate immediately.
 func (p *DockerProvider) attemptToPullImage(ctx context.Context, tag string, pullOpt types.ImagePullOptions) error {
  var (

docker_test.go

@@ -1036,6 +1036,36 @@ func TestCMD(t *testing.T) {
  defer c.Terminate(ctx)
 }
 
+func TestEntrypoint(t *testing.T) {
+ /*
+ echo a unique statement to ensure that we
+ can pass in an entrypoint to the ContainerRequest
+ and it will be run when we run the container
+ */
+
+ ctx := context.Background()
+
+ req := ContainerRequest{
+ Image: "alpine",
+ WaitingFor: wait.ForAll(
+ wait.ForLog("entrypoint override!"),
+ ),
+ Entrypoint: []string{"echo", "entrypoint override!"},
+ }
+
+ c, err := GenericContainer(ctx, GenericContainerRequest{
+ ContainerRequest: req,
+ Started: true,
+ })
+
+ if err != nil {
+ t.Fatal(err)
+ }
+
+ // defer not needed, but keeping it in for consistency
+ defer c.Terminate(ctx)
+}
+
 func ExampleDockerProvider_CreateContainer() {
  ctx := context.Background()
  req := ContainerRequest{