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Add support in plugin config for accessing host ipc namespace. 

Plugins might need access to host ipc namespace. A good usecase is
a volume plugin running iscsi multipath commands that need access to
host kernel locks.
Tested with a custom plugin (aragunathan/global-net-plugin-full) that's
built with `"ipchost" : true` in config.json. Observed using
`readlink /proc/self/ns/ipc` that plugin and host have the same ns.

Signed-off-by: Anusha Ragunathan <anusha.ragunathan@docker.com>
This commit is contained in:
Anusha Ragunathan 2017-03-07 18:26:09 -08:00 committed by Tibor Vass
parent 35cc51b4f6
commit 9111051d98
1 changed files with 3 additions and 0 deletions
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docs/extend/config.md
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@ -115,6 +115,9 @@ Config provides the base accessible fields for working with V0 plugin format
options of the mount. options of the mount.
- **`ipchost`** *boolean*
Access to host ipc namespace.
- **`propagatedMount`** *string* - **`propagatedMount`** *string*
path to be mounted as rshared, so that mounts under that path are visible to docker. This is useful for volume plugins. path to be mounted as rshared, so that mounts under that path are visible to docker. This is useful for volume plugins.