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Pod Device Support

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added support for pod devices. The device gets added to the infra container and
recreated in all containers that join the pod.

This required a new container config item to keep track of the original device passed in by the user before
the path was parsed into the container device.

Signed-off-by: cdoern <cdoern@redhat.com>
This commit is contained in:
cdoern
2021-09-05 23:22:17 -04:00
parent b925d707fa
commit 8fac34b8ff
16 changed files with 138 additions and 42 deletions
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docs/source/markdown/podman-pod-create.1.md
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@ -38,6 +38,22 @@ Examples of the List Format:
0-4,9 # bits 0, 1, 2, 3, 4, and 9 set
0-2,7,12-14 # bits 0, 1, 2, 7, 12, 13, and 14 set
#### **--device**=_host-device_[**:**_container-device_][**:**_permissions_]
Add a host device to the pod. Optional *permissions* parameter
can be used to specify device permissions It is a combination of
**r** for read, **w** for write, and **m** for **mknod**(2).
Example: **--device=/dev/sdc:/dev/xvdc:rwm**.
Note: if _host_device_ is a symbolic link then it will be resolved first.
The pod will only store the major and minor numbers of the host device.
Note: the pod implements devices by storing the initial configuration passed by the user and recreating the device on each container added to the pod.
Podman may load kernel modules required for using the specified
device. The devices that Podman will load modules for when necessary are:
/dev/fuse.
#### **--dns**=*ipaddr*