docs: update debian examples to use bookworm

"bullseye" is no longer the "latest" debian, so these
examples were now incorrect.

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
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Sebastiaan van Stijn 2023-11-23 23:21:07 +01:00
parent 1c6d7d00d6
commit 6468c63c81
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2 changed files with 16 additions and 16 deletions

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@ -67,18 +67,18 @@ docker.io/library/debian:latest
Docker images can consist of multiple layers. In the example above, the image Docker images can consist of multiple layers. In the example above, the image
consists of a single layer; `e756f3fdd6a3`. consists of a single layer; `e756f3fdd6a3`.
Layers can be reused by images. For example, the `debian:bullseye` image shares Layers can be reused by images. For example, the `debian:bookworm` image shares
its layer with the `debian:latest`. Pulling the `debian:bullseye` image therefore its layer with the `debian:latest`. Pulling the `debian:bookworm` image therefore
only pulls its metadata, but not its layers, because the layer is already present only pulls its metadata, but not its layers, because the layer is already present
locally: locally:
```console ```console
$ docker image pull debian:bullseye $ docker image pull debian:bookworm
bullseye: Pulling from library/debian bookworm: Pulling from library/debian
Digest: sha256:3f1d6c17773a45c97bd8f158d665c9709d7b29ed7917ac934086ad96f92e4510 Digest: sha256:3f1d6c17773a45c97bd8f158d665c9709d7b29ed7917ac934086ad96f92e4510
Status: Downloaded newer image for debian:bullseye Status: Downloaded newer image for debian:bookworm
docker.io/library/debian:bullseye docker.io/library/debian:bookworm
``` ```
To see which images are present locally, use the [`docker images`](images.md) To see which images are present locally, use the [`docker images`](images.md)
@ -88,13 +88,13 @@ command:
$ docker images $ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE REPOSITORY TAG IMAGE ID CREATED SIZE
debian bullseye 4eacea30377a 8 days ago 124MB debian bookworm 4eacea30377a 8 days ago 124MB
debian latest 4eacea30377a 8 days ago 124MB debian latest 4eacea30377a 8 days ago 124MB
``` ```
Docker uses a content-addressable image store, and the image ID is a SHA256 Docker uses a content-addressable image store, and the image ID is a SHA256
digest covering the image's configuration and layers. In the example above, digest covering the image's configuration and layers. In the example above,
`debian:bullseye` and `debian:latest` have the same image ID because they are `debian:bookworm` and `debian:latest` have the same image ID because they are
the *same* image tagged with different names. Because they are the same image, the *same* image tagged with different names. Because they are the same image,
their layers are stored only once and do not consume extra disk space. their layers are stored only once and do not consume extra disk space.

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@ -27,17 +27,17 @@ Docker Engine uses the `:latest` tag as a default. This example pulls the
Docker images can consist of multiple layers. In the example above, the image Docker images can consist of multiple layers. In the example above, the image
consists of a single layer; `e756f3fdd6a3`. consists of a single layer; `e756f3fdd6a3`.
Layers can be reused by images. For example, the `debian:bullseye` image shares Layers can be reused by images. For example, the `debian:bookworm` image shares
its layer with the `debian:latest`. Pulling the `debian:bullseye` image therefore its layer with the `debian:latest`. Pulling the `debian:bookworm` image therefore
only pulls its metadata, but not its layers, because the layer is already present only pulls its metadata, but not its layers, because the layer is already present
locally: locally:
$ docker image pull debian:bullseye $ docker image pull debian:bookworm
bullseye: Pulling from library/debian bookworm: Pulling from library/debian
Digest: sha256:3f1d6c17773a45c97bd8f158d665c9709d7b29ed7917ac934086ad96f92e4510 Digest: sha256:3f1d6c17773a45c97bd8f158d665c9709d7b29ed7917ac934086ad96f92e4510
Status: Downloaded newer image for debian:bullseye Status: Downloaded newer image for debian:bookworm
docker.io/library/debian:bullseye docker.io/library/debian:bookworm
To see which images are present locally, use the **docker-images(1)** To see which images are present locally, use the **docker-images(1)**
command: command:
@ -45,12 +45,12 @@ command:
$ docker images $ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE REPOSITORY TAG IMAGE ID CREATED SIZE
debian bullseye 4eacea30377a 8 days ago 124MB debian bookworm 4eacea30377a 8 days ago 124MB
debian latest 4eacea30377a 8 days ago 124MB debian latest 4eacea30377a 8 days ago 124MB
Docker uses a content-addressable image store, and the image ID is a SHA256 Docker uses a content-addressable image store, and the image ID is a SHA256
digest covering the image's configuration and layers. In the example above, digest covering the image's configuration and layers. In the example above,
`debian:bullseye` and `debian:latest` have the same image ID because they are `debian:bookworm` and `debian:latest` have the same image ID because they are
the *same* image tagged with different names. Because they are the same image, the *same* image tagged with different names. Because they are the same image,
their layers are stored only once and do not consume extra disk space. their layers are stored only once and do not consume extra disk space.