92 lines
2.6 KiB
Rust
92 lines
2.6 KiB
Rust
/*
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Copyright The containerd Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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use std::env::consts;
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use client::{
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services::v1::{transfer_client::TransferClient, TransferOptions, TransferRequest},
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to_any,
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types::{
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transfer::{ImageStore, OciRegistry, UnpackConfiguration},
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Platform,
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},
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with_namespace,
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};
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use containerd_client as client;
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use tonic::Request;
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const IMAGE: &str = "docker.io/library/alpine:latest";
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const NAMESPACE: &str = "default";
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/// Make sure you run containerd before running this example.
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/// NOTE: to run this example, you must prepare a rootfs.
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#[tokio::main(flavor = "current_thread")]
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async fn main() {
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let arch = match consts::ARCH {
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"x86_64" => "amd64",
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"aarch64" => "arm64",
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_ => consts::ARCH,
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};
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let channel = client::connect("/run/containerd/containerd.sock")
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.await
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.expect("Connect Failed");
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let mut client = TransferClient::new(channel.clone());
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// Create the source (OCIRegistry)
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let source = OciRegistry {
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reference: IMAGE.to_string(),
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resolver: Default::default(),
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};
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let platform = Platform {
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os: "linux".to_string(),
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architecture: arch.to_string(),
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variant: "".to_string(),
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os_version: "".to_string(),
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};
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// Create the destination (ImageStore)
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let destination = ImageStore {
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name: IMAGE.to_string(),
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platforms: vec![platform.clone()],
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unpacks: vec![UnpackConfiguration {
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platform: Some(platform),
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..Default::default()
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}],
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..Default::default()
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};
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let anys = to_any(&source);
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let anyd = to_any(&destination);
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println!("Pulling image for linux/{} from source: {:?}", arch, source);
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// Create the transfer request
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let request = TransferRequest {
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source: Some(anys),
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destination: Some(anyd),
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options: Some(TransferOptions {
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..Default::default()
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}),
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};
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// Execute the transfer (pull)
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client
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.transfer(with_namespace!(request, NAMESPACE))
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.await
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.expect("unable to transfer image");
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}
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