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path: root/libpod/network/create.go
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* Detect if in podman machine virtual vmBrent Baude2021-04-30
| | | | | | | | | | | | When in podman machine virtual machines, podman needs to be able to detect as such. One implementation for this is when creating networks, the podman-machine cni plugin needs to be added to the configuration. This PR also includes the latest containers-common. [NO TESTS NEEDED] Signed-off-by: Brent Baude <bbaude@redhat.com>
* rootless cni without infra containerPaul Holzinger2021-04-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of creating an extra container create a network and mount namespace inside the podman user namespace. This ns is used to for rootless cni operations. This helps to align the rootless and rootful network code path. If we run as rootless we just have to set up a extra net ns and initialize slirp4netns in it. The ocicni lib will be called in that net ns. This design allows allows easier maintenance, no extra container with pause processes, support for rootless cni with --uidmap and possibly more. The biggest problem is backwards compatibility. I don't think live migration can be possible. If the user reboots or restart all cni containers everything should work as expected again. The user is left with the rootless-cni-infa container and image but this can safely be removed. To make the existing cni configs work we need execute the cni plugins in a extra mount namespace. This ensures that we can safely mount over /run and /var which have to be writeable for the cni plugins without removing access to these files by the main podman process. One caveat is that we need to keep the netns files at `XDG_RUNTIME_DIR/netns` accessible. `XDG_RUNTIME_DIR/rootless-cni/{run,var}` will be mounted to `/{run,var}`. To ensure that we keep the netns directory we bind mount this relative to the new root location, e.g. XDG_RUNTIME_DIR/rootless-cni/run/user/1000/netns before we mount the run directory. The run directory is mounted recursive, this makes the netns directory at the same path accessible as before. This also allows iptables-legacy to work because /run/xtables.lock is now writeable. Signed-off-by: Paul Holzinger <paul.holzinger@web.de>
* bump go module to v3Valentin Rothberg2021-02-22
| | | | | | | | | We missed bumping the go module, so let's do it now :) * Automated go code with github.com/sirkon/go-imports-rename * Manually via `vgrep podman/v2` the rest Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
* Enable whitespace linterPaul Holzinger2021-02-11
| | | | | | | | Use the whitespace linter and fix the reported problems. [NO TESTS NEEDED] Signed-off-by: Paul Holzinger <paul.holzinger@web.de>
* Honor network options for macvlan networksbaude2021-02-02
| | | | | | | | | when creating a macvlan network, we should honor gateway, subnet, and mtu as provided by the user. Fixes: #9167 Signed-off-by: baude <bbaude@redhat.com>
* add macvlan as a supported network driverbaude2021-02-01
| | | | | | | | | | | | instead of using the --macvlan to indicate that you want to make a macvlan network, podman network create now honors the driver name of *macvlan*. Any options to macvlan, like the parent device, should be specified as a -o option. For example, -o parent=eth0. the --macvlan option was marked as deprecated in the man page but is still supported for the duration of 3.0. Signed-off-by: baude <bbaude@redhat.com>
* disable dnsname when --internalbaude2021-01-25
| | | | | | | | when doing a network creation, the dnsname plugin should be disabled when the --internal bool is set. a warning is displayed if this happens and docs are updated. Signed-off-by: baude <bbaude@redhat.com>
* Move the cni lock file into the cni config dirPaul Holzinger2021-01-21
| | | | | | | | | | | | | | Commit(fe3faa517e1b) introduced a lock file for network create/rm calls. There is a problem with the location of the lock file. The lock file was stored in the tmpdir. Running multiple podman network create/remove commands in parallel with different tmpdirs made the lockfile inaccessible to the other process, and so parallel read/write operations to the cni config directory continued to occur. This scenario happened frequently during the e2e tests and caused some flakes. Fixes #9041 Signed-off-by: Paul Holzinger <paul.holzinger@web.de>
* Validate that the bridge option is supportedAnders F Björklund2020-12-01
| | | | | | Thanks Luap99 for the validation suggestion Signed-off-by: Anders F Björklund <anders.f.bjorklund@gmail.com>
* Add podman network create option for bridge vlanAnders F Björklund2020-12-01
| | | | Signed-off-by: Anders F Björklund <anders.f.bjorklund@gmail.com>
* Add podman network create option for bridge mtuAnders F Björklund2020-12-01
| | | | Signed-off-by: Anders F Björklund <anders.f.bjorklund@gmail.com>
* podman network label supportPaul Holzinger2020-11-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add label support for podman network create. Use the `args` field in the cni config file to store the podman labels. Use `podman_labels` as key name and store the labels as map[string]string. For reference: https://github.com/containernetworking/cni/blob/master/CONVENTIONS.md#args-in-network-config https://github.com/containernetworking/cni/blob/spec-v0.4.0/SPEC.md#network-configuration Example snippet: ``` ... "args": { "podman_labels": { "key1":"value1", "key2":"value2" } } ... ``` Make podman network list support several filters. Supported filters are name, plugin, driver and label. Filters with different keys work exclusive. Several label filters work exclusive and the other filter keys are working inclusive. Also adjust the compat api to support labels in network create and list. Breaking changes: - podman network ls -f shortform is used for --filter instead --format This matches docker and other podman commands (container ps, volume ps) - libpod network list endpoint filter parameter is removed. Instead the filters paramter should be used as json encoded map[string][]string. Signed-off-by: Paul Holzinger <paul.holzinger@web.de>
* Fix custom mac address with a custom cni networkPaul Holzinger2020-11-24
| | | | | | | | | | | The cni plugin `tuning` is required to set a custom mac address. This plugin is configured in the default cni config file which is packaged with podman but was not included the generated config form `podman network create`. Fixes #8385 Signed-off-by: Paul Holzinger <paul.holzinger@web.de>
* add network connect|disconnect compat endpointsbaude2020-11-17
| | | | | | | | | | | this enables the ability to connect and disconnect a container from a given network. it is only for the compatibility layer. some code had to be refactored to avoid circular imports. additionally, tests are being deferred temporarily due to some incompatibility/bug in either docker-py or our stack. Signed-off-by: baude <bbaude@redhat.com>
* enable ipv6 network configuration optionsAntonio Ojea2020-11-10
| | | | | | | | | | | | | enable the ipv6 flag in podman network to be able to create dual-stack networks for containers. This is required to be compatible with docker, where --ipv6 really means dual stack. podman, unlike docker, support IPv6 only containers since 07e3f1bba9674c0cb93a0fa260930bfebbf75728. Signed-off-by: Antonio Ojea <aojea@redhat.com>
* Always add the dnsname plugin to the config for rootlessPaul Holzinger2020-10-17
| | | | | | | | The rootless-cni-infra container always has the dnsname plugin installed. It makes no sense to check if it is present on the host. Signed-off-by: Paul Holzinger <paul.holzinger@web.de>
* prevent unpredictable results with network create|removebaude2020-10-07
due to a lack of "locking" on cni operations, we could get ourselves in trouble when doing rapid creation or removal of networks. added a simple file lock to deal with the collision and because it is not considered a performent path, use of the file lock should be ok. if proven otherwise in the future, some generic shared memory lock should be implemented for libpod and also used here. moved pkog/network to libpod/network because libpod is now being pulled into the package and it has therefore lost its generic nature. this will make it easier to absorb into libpod as we try to make the network closer to core operations. Fixes: #7807 Signed-off-by: baude <bbaude@redhat.com>