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2d9f89aec7
Pulling image is the most time-consuming step in the container lifecycle. This PR introduse nydus to kata container, it can lazily pull image when container start. So it can speed up kata container create and start. Fixes #2724 Signed-off-by: luodaowen.backend <luodaowen.backend@bytedance.com>
58 lines
1.3 KiB
Markdown
58 lines
1.3 KiB
Markdown
# Kata Containers with virtio-fs-nydus
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## Introduction
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Refer to [kata-`nydus`-design](../design/kata-nydus-design.md)
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## How to
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You can use Kata Containers with `nydus` as follows,
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1. Use [`nydus` latest branch](https://github.com/dragonflyoss/image-service);
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2. Deploy `nydus` environment as [`Nydus` Setup for Containerd Environment](https://github.com/dragonflyoss/image-service/blob/master/docs/containerd-env-setup.md);
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3. Start `nydus-snapshotter` with `enable_nydus_overlayfs` enabled;
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4. Use [kata-containers](https://github.com/kata-containers/kata-containers) `latest` branch to compile and build `kata-containers.img`;
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5. Update `configuration-qemu.toml` to include:
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```toml
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shared_fs = "virtio-fs-nydus"
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virtio_fs_daemon = "<nydusd binary path>"
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virtio_fs_extra_args = []
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```
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6. run `crictl run -r kata-qemu nydus-container.yaml nydus-sandbox.yaml`;
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The `nydus-sandbox.yaml` looks like below:
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```yaml
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metadata:
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attempt: 1
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name: nydus-sandbox
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namespace: default
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log_directory: /tmp
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linux:
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security_context:
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namespace_options:
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network: 2
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annotations:
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"io.containerd.osfeature": "nydus.remoteimage.v1"
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```
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The `nydus-container.yaml` looks like below:
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```yaml
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metadata:
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name: nydus-container
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image:
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image: localhost:5000/ubuntu-nydus:latest
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command:
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- /bin/sleep
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args:
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- 600
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log_path: container.1.log
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```
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