% podman-farm-build 1

## NAME
podman\-farm\-build - Build images on farm nodes, then bundle them into a manifest list

## SYNOPSIS
**podman farm build** [*options*] [*context*]

## DESCRIPTION
**podman farm build** Builds an image on all nodes in a farm and bundles them up into a manifest list.
It executes the `podman build` command on the nodes in the farm with the given Containerfile. Once the
images are built on all the farm nodes, the images will be pushed to the registry given via the **--tag**
flag. Once all the images have been pushed, a manifest list will be created locally and pushed to the registry
as well.

The manifest list will contain an image per native architecture type that is present in the farm.

The primary function of this command is to create multi-architecture builds that will be faster than doing it
via emulation using `podman build --arch --platform`.

If no farm is specified, the build will be sent out to all the nodes that `podman system connection` knows of.

Note: Since the images built are directly pushed to a registry, the user must pass in a full image name using the
**--tag** option in the format _registry_**/**_repository_**/**_imageName_[**:**_tag_]`.

## OPTIONS

@@option add-host

@@option annotation.image

@@option authfile

@@option build-arg

@@option build-arg-file

@@option build-context

@@option cache-from

@@option cache-to

@@option cache-ttl

@@option cap-add.image

@@option cap-drop.image

@@option cert-dir

@@option cgroup-parent

@@option cgroupns.image

#### **--cleanup**

Remove built images from farm nodes on success (Default: false).

@@option compat-volumes

@@option cpp-flag

@@option cpu-period

@@option cpu-quota

@@option cpu-shares

@@option cpuset-cpus

@@option cpuset-mems

@@option creds

@@option decryption-key

@@option device

Note: if the user only has access rights via a group, accessing the device
from inside a rootless container fails. The **[crun(1)](https://github.com/containers/crun/tree/main/crun.1.md)** runtime offers a
workaround for this by adding the option
**--annotation run.oci.keep_original_groups=1**.

@@option disable-compression

@@option dns

This option cannot be combined with **--network** that is set to **none**.

Note: this option takes effect only during *RUN* instructions in the build.
It does not affect _/etc/resolv.conf_ in the final image.

@@option dns-option.image

@@option dns-search.image

@@option env.image

@@option farm

This option specifies the name of the farm to be used in the build process.

@@option file

@@option force-rm

@@option format

@@option from

@@option group-add

@@option help

@@option hooks-dir

@@option http-proxy

@@option identity-label

@@option ignorefile

@@option iidfile

@@option ipc.image

@@option isolation

@@option jobs

@@option label.image

@@option layer-label

@@option layers

#### **--local**, **-l**

Build image on local machine as well as on farm nodes.

@@option logfile

@@option memory

@@option memory-swap

@@option network.image

@@option no-cache

@@option no-hostname

@@option no-hosts

This option conflicts with **--add-host**.

@@option omit-history

@@option os-feature

@@option os-version.image

@@option pid.image

#### **--platforms**=*p1,p2,p3...*

Build only on farm nodes that match the given platforms.

@@option pull.image

@@option quiet

@@option retry

@@option retry-delay

@@option rm

@@option runtime

@@option runtime-flag

@@option sbom

@@option sbom-image-output

@@option sbom-image-purl-output

@@option sbom-merge-strategy

@@option sbom-output

@@option sbom-purl-output

@@option sbom-scanner-command

@@option sbom-scanner-image

@@option secret.image

@@option security-opt.image

@@option shm-size

@@option skip-unused-stages

@@option squash

@@option squash-all

@@option ssh

@@option tag

@@option target

@@option timestamp

@@option tls-verify

@@option ulimit.image

@@option unsetenv.image

@@option unsetlabel

@@option userns.image

@@option userns-gid-map

@@option userns-gid-map-group

@@option userns-uid-map

@@option userns-uid-map-user

@@option uts

@@option volume.image

## EXAMPLES

Build named image and manifest list using specified Containerfile with default farm:
```
$ podman farm build --local -t name -f /path/to/containerfile .
```

Build named image and manifest list using the specified farm:
```
$ podman farm build --farm myfarm -t name .
```

Build named image and manifest list using the specified farm, removing all images from farm nodes, after they are pushed to registry:
```
$ podman farm build --farm myfarm --cleanup -t name .
```

Build named images and manifest list for specified platforms using default farm:
```
$ podman farm build --platforms arm64,amd64 -t name .
```

## SEE ALSO
**[podman(1)](podman.1.md)**, **[podman-farm(1)](podman-farm.1.md)**, **[buildah(1)](https://github.com/containers/buildah/blob/main/docs/buildah.1.md)**, **[containers-certs.d(5)](https://github.com/containers/image/blob/main/docs/containers-certs.d.5.md)**, **[containers-registries.conf(5)](https://github.com/containers/image/blob/main/docs/containers-registries.conf.5.md)**, **[crun(1)](https://github.com/containers/crun/blob/main/crun.1.md)**, **[runc(8)](https://github.com/opencontainers/runc/blob/main/man/runc.8.md)**, **[useradd(8)](https://www.unix.com/man-page/redhat/8/useradd)**, **[Containerfile(5)](https://github.com/containers/common/blob/main/docs/Containerfile.5.md)**, **[containerignore(5)](https://github.com/containers/common/blob/main/docs/containerignore.5.md)**

## HISTORY

September 2023, Originally compiled by Urvashi Mohnani `<umohnani@redhat.com>`

## FOOTNOTES
<a name="Footnote1">1</a>: The Podman project is committed to inclusivity, a
core value of open source. The `master` and `slave` mount propagation
terminology used here is problematic and divisive, and needs to be changed.
However, these terms are currently used within the Linux kernel and must be
used as-is at this time. When the kernel maintainers rectify this usage,
Podman will follow suit immediately.