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docs: Mention --cni flag while invoking ctr

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Specify that the `--cni` flag needs to be passed to the `ctr` tool
while starting a container in order to have networking enabled for the
container. This flag allows containerd to call into the configured
network plugin which in turn creates a network interface for the
container.

Signed-off-by: Archana Shinde <archana.m.shinde@intel.com>
This commit is contained in:
Archana Shinde 2022-03-11 17:13:58 +05:30
parent 2c238c8504
commit dfad5728a7
1 changed files with 3 additions and 1 deletions
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4
docs/how-to/containerd-kata.md
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@ -312,10 +312,12 @@ To run a container with Kata Containers through the containerd command line, you
```bash
$ sudo ctr image pull docker.io/library/busybox:latest
$ sudo ctr run --runtime io.containerd.run.kata.v2 -t --rm docker.io/library/busybox:latest hello sh
$ sudo ctr run --cni --runtime io.containerd.run.kata.v2 -t --rm docker.io/library/busybox:latest hello sh
```
This launches a BusyBox container named `hello`, and it will be removed by `--rm` after it quits.
The `--cni` flag enables CNI networking for the container. Without this flag, a container with just a
loopback interface is created.
### Launch Pods with `crictl` command line