Created
February 19, 2024 07:40
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Dynamically allocate available port. Just excersice - better use DockerContainer ability to do it itself
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| import socket | |
| from testcontainers.core.container import DockerContainer | |
| class DynamicPortDockerContainer(DockerContainer): | |
| def bind_available_port(self, container_port: int) -> int: | |
| """Find an available port on the host machine and bind it to the `container_port`. | |
| Return bound host port number. | |
| """ | |
| # todo: on container start if port was occupied retry? | |
| s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) | |
| s.bind(("", 0)) # Bind to an available port provided by the OS | |
| host_port = s.getsockname()[1] # Retrieve the port number | |
| s.close() # Close the socket | |
| # (!) does not reserve the port till container start | |
| self.with_bind_ports(container_port, host_port) | |
| return host_port |
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