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Add support for setting the CIDR when using slirp4netns

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This adds support for the --cidr parameter that is supported
by slirp4netns since v0.3.0. This allows the user to change
the ip range that is used for the network inside the container.

Signed-off-by: Adis Hamzić <adis@hamzadis.com>
This commit is contained in:
Adis Hamzić
2020-08-12 16:51:10 +02:00
parent 8eaacec150
commit 95e73c65ae
4 changed files with 42 additions and 3 deletions
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1
docs/source/markdown/podman-create.1.md
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@ -563,6 +563,7 @@ Valid values are:
- `private`: create a new namespace for the container (default)
- `slirp4netns[:OPTIONS,...]`: use slirp4netns to create a user network stack. This is the default for rootless containers. It is possible to specify these additional options:
- **allow_host_loopback=true|false**: Allow the slirp4netns to reach the host loopback IP (`10.0.2.2`). Default is false.
- **cidr=CIDR**: Specify ip range to use for this network. (Default is `10.0.2.0/24`).
- **enable_ipv6=true|false**: Enable IPv6. Default is false. (Required for `outbound_addr6`).
- **outbound_addr=INTERFACE**: Specify the outbound interface slirp should bind to (ipv4 traffic only).
- **outbound_addr=IPv4**: Specify the outbound ipv4 address slirp should bind to.

12
docs/source/markdown/podman-run.1.md
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@ -570,9 +570,15 @@ Valid _mode_ values are:
- **ns:**_path_: path to a network namespace to join;
- `private`: create a new namespace for the container (default)
- **slirp4netns[:OPTIONS,...]**: use **slirp4netns**(1) to create a user network stack. This is the default for rootless containers. It is possible to specify these additional options:
**port_handler=rootlesskit**: Use rootlesskit for port forwarding. Default.
**port_handler=slirp4netns**: Use the slirp4netns port forwarding.
**allow_host_loopback=true|false**: Allow the slirp4netns to reach the host loopback IP (`10.0.2.2`). Default to false.
- **allow_host_loopback=true|false**: Allow the slirp4netns to reach the host loopback IP (`10.0.2.2`). Default is false.
- **cidr=CIDR**: Specify ip range to use for this network. (Default is `10.0.2.0/24`).
- **enable_ipv6=true|false**: Enable IPv6. Default is false. (Required for `outbound_addr6`).
- **outbound_addr=INTERFACE**: Specify the outbound interface slirp should bind to (ipv4 traffic only).
- **outbound_addr=IPv4**: Specify the outbound ipv4 address slirp should bind to.
- **outbound_addr6=INTERFACE**: Specify the outbound interface slirp should bind to (ipv6 traffic only).
- **outbound_addr6=IPv6**: Specify the outbound ipv6 address slirp should bind to.
- **port_handler=rootlesskit**: Use rootlesskit for port forwarding. Default.
- **port_handler=slirp4netns**: Use the slirp4netns port forwarding.
**--network-alias**=*alias*