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path: root/docs/source/markdown/podman-network-reload.1.md
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* fix rootless port forwarding with network dis-/connectPaul Holzinger2021-08-03
| | | | | | | | | | | | | | | | | | | | | | | | The rootlessport forwarder requires a child IP to be set. This must be a valid ip in the container network namespace. The problem is that after a network disconnect and connect the eth0 ip changed. Therefore the packages are dropped since the source ip does no longer exists in the netns. One solution is to set the child IP to 127.0.0.1, however this is a security problem. [1] To fix this we have to recreate the ports after network connect and disconnect. To make this work the rootlessport process exposes a socket where podman network connect/disconnect connect to and send to new child IP to rootlessport. The rootlessport process will remove all ports and recreate them with the new correct child IP. Also bump rootlesskit to v0.14.3 to fix a race with RemovePort(). Fixes #10052 [1] https://nvd.nist.gov/vuln/detail/CVE-2021-20199 Signed-off-by: Paul Holzinger <pholzing@redhat.com>
* Revert escaped double dash man page flag syntaxPaul Holzinger2021-05-07
| | | | | | | | Commit 800a2e2d35 introduced a way to disable the conversion of `--`into an en dash on docs.podman.io, so the ugly workaround of escaping the dashes is no longer necessary. Signed-off-by: Paul Holzinger <paul.holzinger@web.de>
* Add documentation on short-namesDaniel J Walsh2021-05-07
| | | | | | | | | Once we settle on the wording for short-names in podman-pull, I will add the same section to all of the podman commands that use pull. Also ran through all man pages with a spell checker. Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* Fix long option format on docs.podman.ioPaul Holzinger2021-03-29
| | | | | | | | | | | | | | | | | | | Escape the two dashes, otherwise they are combined into one long dash. I tested that this change is safe and still renders correctly on github and with the man pages. This commit also contains a small change to make it build locally. Assuming you have the dependencies installed you can do: ``` cd docs make html ``` Preview the html files in docs/build/html with `python -m http.server 8000 --directory build/html`. Fixes containers/podman.io#373 Signed-off-by: Paul Holzinger <paul.holzinger@web.de>
* podman-remote build does not support volumesDaniel J Walsh2021-03-08
| | | | | | | | Remove --volume option from podman-remote since it is not supported, also add information to podman-build man page indicating options not supported over remote connections. Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* Implement pod-network-reloadMatthew Heon2020-12-07
This adds a new command, 'podman network reload', to reload the networks of existing containers, forcing recreation of firewall rules after e.g. `firewall-cmd --reload` wipes them out. Under the hood, this works by calling CNI to tear down the existing network, then recreate it using identical settings. We request that CNI preserve the old IP and MAC address in most cases (where the container only had 1 IP/MAC), but there will be some downtime inherent to the teardown/bring-up approach. The architecture of CNI doesn't really make doing this without downtime easy (or maybe even possible...). At present, this only works for root Podman, and only locally. I don't think there is much of a point to adding remote support (this is very much a local debugging command), but I think adding rootless support (to kill/recreate slirp4netns) could be valuable. Signed-off-by: Matthew Heon <matthew.heon@pm.me> Signed-off-by: Paul Holzinger <paul.holzinger@web.de>