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c54b717caf
Legacy plugins expect host-relative paths (such as for Volume.Mount). However, a containerized plugin cannot respond with a host-relative path. Therefore, this commit modifies new volume plugins' paths in Mount and List to prepend the container's rootfs path. This introduces a new PropagatedMount field in the Plugin Config. When it is set for volume plugins, RootfsPropagation is set to rshared and the path specified by PropagatedMount is bind-mounted with rshared prior to launching the container. This is so that the daemon code can access the paths returned by the plugin from the host mount namespace. Signed-off-by: Tibor Vass <tibor@docker.com>
27 lines
671 B
Go
27 lines
671 B
Go
package plugingetter
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import "github.com/docker/docker/pkg/plugins"
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const (
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// LOOKUP doesn't update RefCount
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LOOKUP = 0
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// CREATE increments RefCount
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CREATE = 1
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// REMOVE decrements RefCount
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REMOVE = -1
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)
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// CompatPlugin is a abstraction to handle both v2(new) and v1(legacy) plugins.
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type CompatPlugin interface {
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Client() *plugins.Client
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Name() string
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BasePath() string
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IsV1() bool
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}
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// PluginGetter is the interface implemented by Store
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type PluginGetter interface {
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Get(name, capability string, mode int) (CompatPlugin, error)
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GetAllByCap(capability string) ([]CompatPlugin, error)
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Handle(capability string, callback func(string, *plugins.Client))
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}
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