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b65ca24 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 | # Port bindings
Port bindings is done in two parts. Firstly, by providing a list of ports to
open inside the container in the `Client().create_container()` method.
Bindings are declared in the `host_config` parameter.
```python
container_id = cli.create_container(
'busybox', 'ls', ports=[1111, 2222],
host_config=cli.create_host_config(port_bindings={
1111: 4567,
2222: None
})
)
```
You can limit the host address on which the port will be exposed like such:
```python
cli.create_host_config(port_bindings={1111: ('127.0.0.1', 4567)})
```
Or without host port assignment:
```python
cli.create_host_config(port_bindings={1111: ('127.0.0.1',)})
```
If you wish to use UDP instead of TCP (default), you need to declare ports
as such in both the config and host config:
```python
container_id = cli.create_container(
'busybox', 'ls', ports=[(1111, 'udp'), 2222],
host_config=cli.create_host_config(port_bindings={
'1111/udp': 4567, 2222: None
})
)
```
If trying to bind several IPs to the same port, you may use the following syntax:
```python
cli.create_host_config(port_bindings={
1111: [
('192.168.0.100', 1234),
('192.168.0.101', 1234)
]
})
```
Similarly for several container ports bound to a single host port:
```python
cli.create_host_config(port_bindings={
1111: [1234, 4567]
})
```
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