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Signed-off-by: Bruno Sousa <bruno.sousa@docker.com>
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Bruno Sousa 2022-08-30 15:31:22 +01:00
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_data/toc.yaml
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@ -1330,8 +1330,6 @@ manuals:
title: Docker Scan
- path: /engine/sbom/
title: Docker SBOM (Experimental)
- path: /engine/containerd/
title: containerd integration (Experimental)
- path: /engine/release-notes/
title: Release notes
- sectiontitle: Previous versions

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---
title: How to
description: Viewing the containerd integration in Docker for image and file system management
keywords: Docker, containerd, engine, image store, lazy-pull
toc_min: 1
toc_max: 2
---
This page presents instructions about how to activate the new containerd feature for image and file system management in the Docker Engine.
> **Warning**
>
> The containerd image store management feature is currently experimental. This may change or be removed from future releases.
{: .warning }
## Enable or disable containerd image store
The experimental containerd image store feature is switched off by default. To change your settings:
1. Navigate to Settings, or Preferences if you’re a Mac user.
2. Select the Experimental features tab.
3. Next to Use containerd for pulling and storing images, select or clear the checkbox to set your desired state.
![containerd_feature_activation](images/containerd_feature_activation.png){:width="750px"}
## Simple use
Show the server version and the storage driver:
```
% docker info
Client:
Context: default
Debug Mode: false
Plugins:
buildx: Docker Buildx (Docker Inc., v0.9.1)
compose: Docker Compose (Docker Inc., v2.10.2)
extension: Manages Docker extensions (Docker Inc., v0.2.9)
sbom: View the packaged-based Software Bill Of Materials (SBOM) for an image (Anchore Inc., 0.6.0)
scan: Docker Scan (Docker Inc., v0.19.0)
Server:
Containers: 0
Running: 0
Paused: 0
Stopped: 0
Images: 0
Server Version: 22.06.0-beta.0-372-gd3bb8227ce.m
Storage Driver: stargz
driver-type: io.containerd.snapshotter.v1
Logging Driver: json-file
Cgroup Driver: cgroupfs
Cgroup Version: 2
Plugins:
Volume: local
Network: bridge host ipvlan macvlan null overlay
Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
Swarm: inactive
Runtimes: runc io.containerd.runc.v2
Default Runtime: runc
Init Binary: docker-init
containerd version: 9cd3357b7fd7218e4aec3eae239db1f68a5a6ec6
runc version: v1.1.4-0-g5fd4c4d
```
```
init version: de40ad0
Security Options:
seccomp
Profile: builtin
cgroupns
Kernel Version: 5.10.124-linuxkit
Operating System: Docker Desktop
OSType: linux
Architecture: aarch64
CPUs: 5
Total Memory: 7.653GiB
Name: docker-desktop
ID: f4d28427-96df-404c-b47b-647fe5138e2a
Docker Root Dir: /var/lib/docker
Debug Mode: false
HTTP Proxy: http.docker.internal:3128
HTTPS Proxy: http.docker.internal:3128
No Proxy: hubproxy.docker.internal
Registry: https://index.docker.io/v1/
Labels:
Experimental: false
Insecure Registries:
hubproxy.docker.internal:5000
127.0.0.0/8
Live Restore Enabled: false
```
Run a simple container:
```
% docker run --rm hello-world
Unable to find image 'hello-world:latest' locally
7d246653d051: Download complete
432f982638b3: Download complete
46331d942d63: Download complete
7050e35b49f5: Downloading [> ] 0B/3.208kB
Hello from Docker!
This message shows that your installation appears to be working correctly.
...
%
```
Run with port settings:
```
% docker run -p 8080:80 -d nginx
Unable to find image 'nginx:latest' locally
b95a99feebf7: Download complete
91d5b6827ff7: Download complete
fc5ec3f147e4: Download complete
5b1423465504: Download complete
1cdde8b981f2: Download complete
6c0b05f215c0: Download complete
004f1937a10a: Download complete
fd61d71c75fe: Download complete
717bf61a04cf: Download complete
8b6a7e0df8edbe91dfa77716a5e84ca28348f44f545a0d34c70a8987c56e63e0
%
```
Confirm nginx is running:
```
% docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
93b4d60dfd08 nginx "/docker-entrypoint.…" 3 seconds ago Up 3 seconds 0.0.0.0:8080->80/tcp stoic_mccarthy
```
![containerd_feature_nginx](images/containerd_feature_nginx.png){:width="750px"}
## Building multi-platform images
Sample Dockerfile:
```
FROM alpine
ENTRYPOINT ["echo", "hello friends"]
```
Build a multi-platform image:
```
% docker buildx build --platform linux/amd64,linux/arm64 -t <username>/hello-friends .
[+] Building 0.7s (7/7) FINISHED
=> [internal] load .dockerignore 0.0s
=> => transferring context: 2B 0.0s
=> [internal] load build definition from Dockerfile 0.0s
=> => transferring dockerfile: 88B 0.0s
=> [linux/arm64 internal] load metadata for docker.io/library/alpine:latest 0.6s
=> [linux/amd64 internal] load metadata for docker.io/library/alpine:latest 0.6s
=> [linux/amd64 1/1] FROM docker.io/library/alpine@sha256:bc41182d7ef5ffc53a40b044e725193bc10142a1243f395ee852a8d9730fc2ad 0.0s
=> => resolve docker.io/library/alpine@sha256:bc41182d7ef5ffc53a40b044e725193bc10142a1243f395ee852a8d9730fc2ad 0.0s
=> CACHED [linux/arm64 1/1] FROM docker.io/library/alpine@sha256:bc41182d7ef5ffc53a40b044e725193bc10142a1243f395ee852a8d9730fc2ad 0.0s
=> => resolve docker.io/library/alpine@sha256:bc41182d7ef5ffc53a40b044e725193bc10142a1243f395ee852a8d9730fc2ad 0.0s
=> exporting to image 0.0s
=> => exporting layers 0.0s
=> => exporting manifest sha256:71bf02afcd7a791c268aa935027f1dc05238f5b5017d755d0fd6d9c71c1b79b9 0.0s
=> => exporting config sha256:f1edbf6b99d22831f9312ab2b8b7642a904c614000bb8369ed673848f4f03578 0.0s
=> => exporting manifest sha256:e41da7320a956163128d77ad69c8109af4799b41bd2e8e660bc6f01136b67f45 0.0s
=> => exporting config sha256:4a5580ab8335432cf6cea7ff695f177d120fa2c9aa4002525025888e3cae16ee 0.0s
=> => exporting manifest list sha256:339d089b539c950268de1edeef9652584e16efa51ea2c84ee586d3143b97234d 0.0s
=> => naming to docker.io/<username>/hello-friends:latest 0.0s
=> => unpacking to docker.io/<username>/hello-friends:latest
%
```
Run multi-platform image:
```
% docker run <username>/hello-friends
hello friends
```
Push a multiplatform image:
```
% docker push <username>/hello-friends
Using default tag: latest
f1edbf6b99d2: Pushed
213ec9aee27d: Pushed
71bf02afcd7a: Pushed
e41da7320a95: Pushed
339d089b539c: Pushed
4a5580ab8335: Pushed
9b18e9b68314: Pushed
%
```
View Tags on DockerHub to see multi-platform result:
![containerd_feature_tags](images/containerd_feature_tags.png){:width="750px"}

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---
title: containerd integration with Docker Engine
description: Viewing the containerd integration in Docker for image and file system management
keywords: Docker, containerd, engine, image store, lazy-pull
toc_min: 1
toc_max: 2
---
This page presents information about the on-going integration of containerd for image and file system management in the Docker Engine.
> **Warning**
>
> The containerd image store management feature is currently experimental. This may change or be removed from future releases.
{: .warning }
## 2022-09-01
Beta release support of containerd for image management as an Experimental Feature in Docker Desktop 4.12.0.
### New
Initial implementation of the Docker commands: `run`, `commit`, `build`, `push`, `load`, `search` and `save`.
### Known issues
- The containerd integration requires Buildx version 0.9.0 or newer. On Docker Desktop for Linux (DD4L), validate the locally installed version meets this requirement. If an older version is installed, the Docker daemon will report an error: `multiple platforms feature is currently not supported for docker driver. Please switch to a different driver`.
## Feedback
Thanks for trying the new features available with containerd. We’d love to hear from you. You can provide feedback and report any bugs through the Issues tracker in the
[feedback form](https://dockr.ly/3PODIhD){: target="_blank" rel="noopener" class="_"}.

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