mirror of https://github.com/docker/docs.git
desktop: refresh containerd examples
Signed-off-by: David Karlsson <david.karlsson@docker.com>
This commit is contained in:
David Karlsson
parent
7bdcde7f1a
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7a1773a6b6
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@ -32,186 +32,89 @@ images** checkbox.
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{:width="750px"}
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## Simple usage examples
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### Show server and storage driver version
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```console
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$ docker info
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Client:
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Context: default
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Debug Mode: false
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Plugins:
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buildx: Docker Buildx (Docker Inc., v0.9.1)
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compose: Docker Compose (Docker Inc., v2.10.2)
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extension: Manages Docker extensions (Docker Inc., v0.2.9)
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sbom: View the packaged-based Software Bill Of Materials (SBOM) for an image (Anchore Inc., 0.6.0)
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scan: Docker Scan (Docker Inc., v0.19.0)
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Server:
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Containers: 0
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Running: 0
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Paused: 0
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Stopped: 0
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Images: 0
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Server Version: 22.06.0-beta.0-372-gd3bb8227ce.m
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Storage Driver: stargz
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driver-type: io.containerd.snapshotter.v1
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Logging Driver: json-file
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Cgroup Driver: cgroupfs
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Cgroup Version: 2
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Plugins:
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Volume: local
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Network: bridge host ipvlan macvlan null overlay
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Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
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Swarm: inactive
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Runtimes: runc io.containerd.runc.v2
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Default Runtime: runc
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Init Binary: docker-init
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containerd version: 9cd3357b7fd7218e4aec3eae239db1f68a5a6ec6
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runc version: v1.1.4-0-g5fd4c4d
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init version: de40ad0
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Security Options:
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seccomp
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Profile: builtin
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cgroupns
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Kernel Version: 5.10.124-linuxkit
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Operating System: Docker Desktop
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OSType: linux
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Architecture: aarch64
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CPUs: 5
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Total Memory: 7.653GiB
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Name: docker-desktop
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ID: f4d28427-96df-404c-b47b-647fe5138e2a
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Docker Root Dir: /var/lib/docker
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Debug Mode: false
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HTTP Proxy: http.docker.internal:3128
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HTTPS Proxy: http.docker.internal:3128
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No Proxy: hubproxy.docker.internal
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Registry: https://index.docker.io/v1/
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Labels:
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Experimental: false
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Insecure Registries:
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hubproxy.docker.internal:5000
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127.0.0.0/8
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Live Restore Enabled: false
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```
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### Run a simple container
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```console
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$ docker run --rm hello-world
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Unable to find image 'hello-world:latest' locally
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7d246653d051: Download complete
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432f982638b3: Download complete
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46331d942d63: Download complete
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7050e35b49f5: Downloading [> ] 0B/3.208kB
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Hello from Docker!
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This message shows that your installation appears to be working correctly.
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...
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```
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## Run the container
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Run the container specifying port settings:
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```console
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$ docker run -p 8080:80 -d nginx
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Unable to find image 'nginx:latest' locally
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b95a99feebf7: Download complete
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91d5b6827ff7: Download complete
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fc5ec3f147e4: Download complete
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5b1423465504: Download complete
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1cdde8b981f2: Download complete
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6c0b05f215c0: Download complete
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004f1937a10a: Download complete
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fd61d71c75fe: Download complete
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717bf61a04cf: Download complete
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8b6a7e0df8edbe91dfa77716a5e84ca28348f44f545a0d34c70a8987c56e63e0
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```
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Confirm the Nginx container is running:
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```console
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$ docker ps
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CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
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93b4d60dfd08 nginx "/docker-entrypoint.…" 3 seconds ago Up 3 seconds 0.0.0.0:8080->80/tcp stoic_mccarthy
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```
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You can also check from the browser that Nginx is running:
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{:width="750px"}
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## Building multi-platform images
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Sample Dockerfile:
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```dockerfile
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# syntax=docker/dockerfile:1
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FROM alpine
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ENTRYPOINT ["echo", "hello friends"]
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```
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Build a multi-platform image:
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The term multi-platform image refers to a bundle of images that can run on different architectures.
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Out of the box, the default builder for Docker Desktop doesn't support building multi-platform images.
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```console
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$ docker buildx build --platform linux/amd64,linux/arm64 -t <username>/hello-friends .
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[+] Building 0.7s (7/7)
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FINISHED
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=> [internal] load .dockerignore 0.0s
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=> => transferring context: 2B 0.0s
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=> [internal] load build definition from Dockerfile 0.0s
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=> => transferring dockerfile: 88B 0.0s
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=> [linux/arm64 internal] load metadata for docker.io/library/alpine:latest 0.6s
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=> [linux/amd64 internal] load metadata for docker.io/library/alpine:latest 0.6s
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=> [linux/amd64 1/1] FROM docker.io/library/alpine@sha256:bc41182d7ef5ffc53a40b044e725193bc10142a1243f395ee852a8d9730fc2ad 0.0s
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=> => resolve docker.io/library/alpine@sha256:bc41182d7ef5ffc53a40b044e725193bc10142a1243f395ee852a8d9730fc2ad 0.0s
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=> CACHED [linux/arm64 1/1] FROM docker.io/library/alpine@sha256:bc41182d7ef5ffc53a40b044e725193bc10142a1243f395ee852a8d9730fc2ad 0.0s
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=> => resolve docker.io/library/alpine@sha256:bc41182d7ef5ffc53a40b044e725193bc10142a1243f395ee852a8d9730fc2ad 0.0s
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=> exporting to image 0.0s
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=> => exporting layers 0.0s
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=> => exporting manifest sha256:71bf02afcd7a791c268aa935027f1dc05238f5b5017d755d0fd6d9c71c1b79b9 0.0s
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=> => exporting config sha256:f1edbf6b99d22831f9312ab2b8b7642a904c614000bb8369ed673848f4f03578 0.0s
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=> => exporting manifest sha256:e41da7320a956163128d77ad69c8109af4799b41bd2e8e660bc6f01136b67f45 0.0s
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=> => exporting config sha256:4a5580ab8335432cf6cea7ff695f177d120fa2c9aa4002525025888e3cae16ee 0.0s
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=> => exporting manifest list sha256:339d089b539c950268de1edeef9652584e16efa51ea2c84ee586d3143b97234d 0.0s
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=> => naming to docker.io/<username>/hello-friends:latest 0.0s
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=> => unpacking to docker.io/<username>/hello-friends:latest
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$ docker buildx ls | grep "DRIVER\|*"
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NAME/NODE DRIVER/ENDPOINT STATUS BUILDKIT PLATFORMS
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default * docker
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$ docker buildx build --platform=linux/amd64,linux/arm64 .
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[+] Building 0.0s (0/0)
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ERROR: multiple platforms feature is currently not supported for docker driver. Please switch to a different driver (eg. "docker buildx create --use")
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```
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Run multi-platform image:
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Normally, building multi-platform images requires you to create a new builder,
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using a driver that supports multi-platform builds.
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But even then, you can't load the multi-platform images to your local image store.
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```console
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$ docker run <username>/hello-friends
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$ docker buildx create --bootstrap
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[+] Building 2.4s (1/1) FINISHED
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=> [internal] booting buildkit
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=> => pulling image moby/buildkit:buildx-stable-1
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=> => creating container buildx_buildkit_objective_blackburn0
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objective_blackburn
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$ docker buildx build --quiet \
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--platform=linux/amd64,linux/arm64 \
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--builder=objective_blackburn \
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--load .
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ERROR: docker exporter does not currently support exporting manifest lists
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```
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Push a multi-platform image:
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Enabling the containerd image store lets you build, and load, multi-platform images
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to your local image store, all while using the default builder.
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{% raw %}
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```console
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$ docker push <username>/hello-friends
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$ docker info --format="{{ .Driver }}"
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stargz
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$ docker buildx build \
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--platform=linux/arm64,linux/amd64 \
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--tag=user/containerd-multiplatform .
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[+] Building 6.2s (11/11) FINISHED
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...
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=> [internal] load build definition from Dockerfile 0.0s
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=> => transferring dockerfile: 115B 0.0s
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=> [linux/arm64 internal] load metadata for docker.io/library/alpine:latest 2.0s
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=> [linux/amd64 internal] load metadata for docker.io/library/alpine:latest 2.1s
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=> [linux/amd64 1/1] FROM docker.io/library/alpine@sha256:124c7d2707904e... 0.0s
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=> => resolve docker.io/library/alpine@sha256:124c7d2707904eea7431fffe91... 0.0s
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=> [linux/arm64 1/1] FROM docker.io/library/alpine@sha256:124c7d2707904e... 0.0s
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=> => resolve docker.io/library/alpine@sha256:124c7d2707904eea7431fffe91... 0.0s
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=> exporting to image 0.0s
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=> => exporting layers 0.0s
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...
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=> => naming to docker.io/user/containerd-multiplatform:latest 0.0s
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=> => unpacking to docker.io/user/containerd-multiplatform:latest 0.0s
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$ docker images
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REPOSITORY TAG IMAGE ID CREATED SIZE
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user/containerd-multiplatform latest 7401bb14c229 14 seconds ago 3.38MB
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user/containerd-multiplatform latest 7401bb14c229 14 seconds ago 3.26MB
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```
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{% endraw %}
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You can push the multi-platform image to Docker Hub.
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```console
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$ docker push user/containerd-multiplatform
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Using default tag: latest
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f1edbf6b99d2: Pushed
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213ec9aee27d: Pushed
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71bf02afcd7a: Pushed
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e41da7320a95: Pushed
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339d089b539c: Pushed
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4a5580ab8335: Pushed
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9b18e9b68314: Pushed
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699c4e744ab4: Pushed
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878d877e4f70: Pushed
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f56be85fc22e: Pushed
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a579f49700dc: Pushed
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c41833b44d91: Pushed
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ee79e74f9211: Pushed
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d28bdb47b683: Pushed
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```
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View Tags on DockerHub to see multi-platform result:
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Inspecting the tag on Docker Hub shows that the image is available for multiple platforms.
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{:width="750px"}
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{:width="750px"}
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## Known issues
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