fc7b904dce
`Mounts` allows users to specify in a much safer way the volumes they
want to use in the container.
This replaces `Binds` and `Volumes`, which both still exist, but
`Mounts` and `Binds`/`Volumes` are exclussive.
The CLI will continue to use `Binds` and `Volumes` due to concerns with
parsing the volume specs on the client side and cross-platform support
(for now).
The new API follows exactly the services mount API.
Example usage of `Mounts`:
```
$ curl -XPOST localhost:2375/containers/create -d '{
"Image": "alpine:latest",
"HostConfig": {
"Mounts": [{
"Type": "Volume",
"Target": "/foo"
},{
"Type": "bind",
"Source": "/var/run/docker.sock",
"Target": "/var/run/docker.sock",
},{
"Type": "volume",
"Name": "important_data",
"Target": "/var/data",
"ReadOnly": true,
"VolumeOptions": {
"DriverConfig": {
Name: "awesomeStorage",
Options: {"size": "10m"},
Labels: {"some":"label"}
}
}]
}
}'
```
There are currently 2 types of mounts:
- **bind**: Paths on the host that get mounted into the
container. Paths must exist prior to creating the container.
- **volume**: Volumes that persist after the
container is removed.
Not all fields are available in each type, and validation is done to
ensure these fields aren't mixed up between types.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>
65 lines
2.2 KiB
Go
65 lines
2.2 KiB
Go
// +build linux
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package volume
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import (
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"strings"
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"testing"
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)
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func TestParseMountRawPropagation(t *testing.T) {
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var (
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valid []string
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invalid map[string]string
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)
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valid = []string{
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"/hostPath:/containerPath:shared",
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"/hostPath:/containerPath:rshared",
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"/hostPath:/containerPath:slave",
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"/hostPath:/containerPath:rslave",
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"/hostPath:/containerPath:private",
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"/hostPath:/containerPath:rprivate",
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"/hostPath:/containerPath:ro,shared",
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"/hostPath:/containerPath:ro,slave",
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"/hostPath:/containerPath:ro,private",
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"/hostPath:/containerPath:ro,z,shared",
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"/hostPath:/containerPath:ro,Z,slave",
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"/hostPath:/containerPath:Z,ro,slave",
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"/hostPath:/containerPath:slave,Z,ro",
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"/hostPath:/containerPath:Z,slave,ro",
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"/hostPath:/containerPath:slave,ro,Z",
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"/hostPath:/containerPath:rslave,ro,Z",
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"/hostPath:/containerPath:ro,rshared,Z",
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"/hostPath:/containerPath:ro,Z,rprivate",
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}
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invalid = map[string]string{
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"/path:/path:ro,rshared,rslave": `invalid mode`,
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"/path:/path:ro,z,rshared,rslave": `invalid mode`,
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"/path:shared": "invalid volume specification",
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"/path:slave": "invalid volume specification",
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"/path:private": "invalid volume specification",
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"name:/absolute-path:shared": "invalid volume specification",
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"name:/absolute-path:rshared": "invalid volume specification",
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"name:/absolute-path:slave": "invalid volume specification",
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"name:/absolute-path:rslave": "invalid volume specification",
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"name:/absolute-path:private": "invalid volume specification",
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"name:/absolute-path:rprivate": "invalid volume specification",
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}
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for _, path := range valid {
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if _, err := ParseMountRaw(path, "local"); err != nil {
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t.Fatalf("ParseMountRaw(`%q`) should succeed: error %q", path, err)
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}
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}
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for path, expectedError := range invalid {
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if _, err := ParseMountRaw(path, "local"); err == nil {
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t.Fatalf("ParseMountRaw(`%q`) should have failed validation. Err %v", path, err)
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} else {
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if !strings.Contains(err.Error(), expectedError) {
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t.Fatalf("ParseMountRaw(`%q`) error should contain %q, got %v", path, expectedError, err.Error())
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}
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}
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}
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}
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