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Merge pull request #25769 from Luap99/pasta-doc

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docs: update pasta options description
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openshift-merge-bot[bot]
2025-04-03 19:50:53 +00:00
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parent 76eea47fb3 1f90cc1126
commit dced2bf9ef
1 changed files with 13 additions and 6 deletions
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docs/source/markdown/options/network.md
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@ -51,9 +51,7 @@ Valid _mode_ values are:
stack. \ stack. \
This is the default for rootless containers and only supported in rootless mode. \ This is the default for rootless containers and only supported in rootless mode. \
By default, IPv4 and IPv6 addresses and routes, as well as the pod interface By default, IPv4 and IPv6 addresses and routes, as well as the pod interface
name, are copied from the host. If port forwarding isn't configured, ports name, are copied from the host. Port forwarding preserves the original
are forwarded dynamically as services are bound on either side (init
namespace or container namespace). Port forwarding preserves the original
source IP address. Options described in pasta(1) can be specified as source IP address. Options described in pasta(1) can be specified as
comma-separated arguments. \ comma-separated arguments. \
In terms of pasta(1) options, **--config-net** is given by default, in In terms of pasta(1) options, **--config-net** is given by default, in
@ -62,11 +60,20 @@ Valid _mode_ values are:
container to host using the gateway address. The latter can be overridden container to host using the gateway address. The latter can be overridden
by passing **--map-gw** in the pasta-specific options (despite not being an by passing **--map-gw** in the pasta-specific options (despite not being an
actual pasta(1) option). \ actual pasta(1) option). \
For better integration with DNS handling, **--dns-forward 169.254.1.1** is passed,
and this address is added to resolv.conf(5) as first resolver. It is possible to pass
**--dns-forward** explicitly in case a different IP address should be used.
To make the `host.containers.internal` /etc/hosts entry work and allow connections
to the host, **--map-guest-addr 169.254.1.2** is passed. Again, it can be set
explicitly to choose a different IP address. \
Also, **-t none** and **-u none** are passed if, respectively, no TCP or Also, **-t none** and **-u none** are passed if, respectively, no TCP or
UDP port forwarding from host to container is configured, to disable UDP port forwarding from host to container is configured (via Podman's
automatic port forwarding based on bound ports. Similarly, **-T none** and **--publish** or by passing the pasta **-t**/**-u** options directly),
**-U none** are given to disable the same functionality from container to to disable automatic port forwarding based on bound ports. Similarly, **-T none**
and **-U none** are given to disable the same functionality from container to
host. \ host. \
All options can also be set in **[containers.conf(5)](https://github.com/containers/common/blob/main/docs/containers.conf.5.md)**;
see the `pasta_options` key under the network section in that file. \
Some examples: Some examples:
- **pasta:--map-gw**: Allow the container to directly reach the host using the - **pasta:--map-gw**: Allow the container to directly reach the host using the
gateway address. gateway address.