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|
//go:build linux
// +build linux
package local // import "github.com/docker/docker/volume/local"
import (
"os"
"path/filepath"
"strconv"
"testing"
"github.com/docker/docker/errdefs"
"github.com/docker/docker/pkg/idtools"
"github.com/docker/docker/quota"
"gotest.tools/v3/assert"
is "gotest.tools/v3/assert/cmp"
)
const quotaSize = 1024 * 1024
const quotaSizeLiteral = "1M"
func TestQuota(t *testing.T) {
if msg, ok := quota.CanTestQuota(); !ok {
t.Skip(msg)
}
// get sparse xfs test image
imageFileName, err := quota.PrepareQuotaTestImage(t)
if err != nil {
t.Fatal(err)
}
defer os.Remove(imageFileName)
t.Run("testVolWithQuota", quota.WrapMountTest(imageFileName, true, testVolWithQuota))
t.Run("testVolQuotaUnsupported", quota.WrapMountTest(imageFileName, false, testVolQuotaUnsupported))
}
func testVolWithQuota(t *testing.T, mountPoint, backingFsDev, testDir string) {
r, err := New(testDir, idtools.Identity{UID: os.Geteuid(), GID: os.Getegid()})
if err != nil {
t.Fatal(err)
}
assert.Assert(t, r.quotaCtl != nil)
vol, err := r.Create("testing", map[string]string{"size": quotaSizeLiteral})
if err != nil {
t.Fatal(err)
}
dir, err := vol.Mount("1234")
if err != nil {
t.Fatal(err)
}
defer func() {
if err := vol.Unmount("1234"); err != nil {
t.Fatal(err)
}
}()
testfile := filepath.Join(dir, "testfile")
// test writing file smaller than quota
assert.NilError(t, os.WriteFile(testfile, make([]byte, quotaSize/2), 0644))
assert.NilError(t, os.Remove(testfile))
// test writing fiel larger than quota
err = os.WriteFile(testfile, make([]byte, quotaSize+1), 0644)
assert.ErrorContains(t, err, "")
if _, err := os.Stat(testfile); err == nil {
assert.NilError(t, os.Remove(testfile))
}
}
func testVolQuotaUnsupported(t *testing.T, mountPoint, backingFsDev, testDir string) {
r, err := New(testDir, idtools.Identity{UID: os.Geteuid(), GID: os.Getegid()})
if err != nil {
t.Fatal(err)
}
assert.Assert(t, is.Nil(r.quotaCtl))
_, err = r.Create("testing", map[string]string{"size": quotaSizeLiteral})
assert.ErrorContains(t, err, "no quota support")
vol, err := r.Create("testing", nil)
if err != nil {
t.Fatal(err)
}
// this could happen if someone moves volumes from storage with
// quota support to some place without
lv, ok := vol.(*localVolume)
assert.Assert(t, ok)
lv.opts = &optsConfig{
Quota: quota.Quota{Size: quotaSize},
}
_, err = vol.Mount("1234")
assert.ErrorContains(t, err, "no quota support")
}
func TestVolCreateValidation(t *testing.T) {
r, err := New(t.TempDir(), idtools.Identity{UID: os.Geteuid(), GID: os.Getegid()})
if err != nil {
t.Fatal(err)
}
mandatoryOpts = map[string][]string{
"device": {"type"},
"type": {"device"},
"o": {"device", "type"},
}
tests := []struct {
doc string
name string
opts map[string]string
expectedErr string
}{
{
doc: "invalid: name too short",
name: "a",
opts: map[string]string{
"type": "foo",
"device": "foo",
},
expectedErr: `volume name is too short, names should be at least two alphanumeric characters`,
},
{
doc: "invalid: name invalid characters",
name: "hello world",
opts: map[string]string{
"type": "foo",
"device": "foo",
},
expectedErr: `"hello world" includes invalid characters for a local volume name, only "[a-zA-Z0-9][a-zA-Z0-9_.-]" are allowed. If you intended to pass a host directory, use absolute path`,
},
{
doc: "invalid: unknown option",
opts: map[string]string{"hello": "world"},
expectedErr: `invalid option: "hello"`,
},
{
doc: "invalid: invalid size",
opts: map[string]string{"size": "hello"},
expectedErr: `invalid size: 'hello'`,
},
{
doc: "invalid: size, but no quotactl",
opts: map[string]string{"size": "1234"},
expectedErr: `quota size requested but no quota support`,
},
{
doc: "invalid: device without type",
opts: map[string]string{
"device": "foo",
},
expectedErr: `missing required option: "type"`,
},
{
doc: "invalid: type without device",
opts: map[string]string{
"type": "foo",
},
expectedErr: `missing required option: "device"`,
},
{
doc: "invalid: o without device",
opts: map[string]string{
"o": "foo",
"type": "foo",
},
expectedErr: `missing required option: "device"`,
},
{
doc: "invalid: o without type",
opts: map[string]string{
"o": "foo",
"device": "foo",
},
expectedErr: `missing required option: "type"`,
},
{
doc: "valid: short name, no options",
name: "ab",
},
{
doc: "valid: device and type",
opts: map[string]string{
"type": "foo",
"device": "foo",
},
},
{
doc: "valid: device, type, and o",
opts: map[string]string{
"type": "foo",
"device": "foo",
"o": "foo",
},
},
}
for i, tc := range tests {
tc := tc
t.Run(tc.doc, func(t *testing.T) {
if tc.name == "" {
tc.name = "vol-" + strconv.Itoa(i)
}
v, err := r.Create(tc.name, tc.opts)
if v != nil {
defer assert.Check(t, r.Remove(v))
}
if tc.expectedErr == "" {
assert.NilError(t, err)
} else {
assert.Check(t, errdefs.IsInvalidParameter(err), "got: %T", err)
assert.ErrorContains(t, err, tc.expectedErr)
}
})
}
}
|
