HostPort Wait strategy

The host-port wait strategy will check if the container is listening to a specific port and allows to set the following conditions:

• a port exposed by the container. The port and protocol to be used, which is represented by a string containing the port number and protocol in the format "80/tcp".
• alternatively, wait for the first exposed port in the container.
• the startup timeout to be used, default is 60 seconds.
• the poll interval to be used, default is 100 milliseconds.

Variations on the HostPort wait strategy are supported, including:

Listening port in the container

req := ContainerRequest{
    Image:        "docker.io/nginx:alpine",
    ExposedPorts: []string{"80/tcp"},
    WaitingFor:   wait.ForListeningPort("80/tcp"),
}

First exposed port in the container

The wait strategy will use the first exposed port from the container configuration.

req := ContainerRequest{
    Image:        "docker.io/nginx:alpine",
    WaitingFor:   wait.ForExposedPort(),
}

Said that, it could be the case that the container request included ports to be exposed. Therefore using wait.ForExposedPort will wait for the first exposed port in the request, because the container configuration retrieved from Docker will already include them.

req := ContainerRequest{
    Image:        "docker.io/nginx:alpine",
    ExposedPorts: []string{"80/tcp", "9080/tcp"},
    WaitingFor:   wait.ForExposedPort(),
}