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compose spec consistency (#20915) 

* compose spec consistency

* fix links

* Update content/reference/compose-file/build.md

Co-authored-by: David Karlsson <35727626+dvdksn@users.noreply.github.com>

---------

Co-authored-by: David Karlsson <35727626+dvdksn@users.noreply.github.com>
This commit is contained in:
Allie Sadler 2024-09-16 14:57:42 +01:00 committed by GitHub
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7
content/reference/compose-file/build.md
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@ -508,7 +508,12 @@ build:
```
The image builder can then rely on this to mount the SSH key during build.
For more information, see the [`RUN --mount=type=ssh` Dockerfile reference](/reference/dockerfile.md#run---mounttypessh).
For illustration, [SSH mounts](https://github.com/moby/buildkit/blob/master/frontend/dockerfile/docs/reference.md#run---mounttypessh) can be used to mount the SSH key set by ID and access a secured resource:
```console
RUN --mount=type=ssh,id=myproject git clone ...
```
### shm_size

23
content/reference/compose-file/deploy.md
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@ -66,8 +66,7 @@ services:
#### constraints
`constraints` defines a required property the platform's node must fulfill to run the service container. It can be set either
by a list or a map with string values.
`constraints` defines a required property the platform's node must fulfill to run the service container. For a further example, see the [CLI reference docs](/reference/cli/docker/service/create.md#constraint).
```yml
deploy:
@ -76,30 +75,16 @@ deploy:
- disktype=ssd
```
```yml
deploy:
placement:
constraints:
disktype: ssd
```
#### preferences
`preferences` defines a property the platform's node should fulfill to run service container. It can be set either
by a list or a map with string values.
`preferences` defines a strategy (currently `spread` is the only supported strategy) to spread tasks evenly
over the values of the datacenter node label. For a further example, see the [CLI reference docs](/reference/cli/docker/service/create.md#placement-pref)
```yml
deploy:
placement:
preferences:
- datacenter=us-east
```
```yml
deploy:
placement:
preferences:
datacenter: us-east
- spread: node.labels.zone
```
### replicas