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Move volumesfrom to hostconfig

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This also migrates the volumes from integration tests into the new cli
integration test framework.
Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
This commit is contained in:
Michael Crosby 2014-04-08 09:26:09 +00:00
parent a10c17ad11
commit af9746412b
9 changed files with 92 additions and 302 deletions
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72
integration-cli/docker_cli_run_test.go
View file

@ -312,3 +312,75 @@ func TestVolumesMountedAsReadonly(t *testing.T) {
logDone("run - volumes as readonly mount")
}
func TestVolumesFromInReadonlyMode(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "--name", "parent", "-v", "/test", "busybox", "true")
if _, err := runCommand(cmd); err != nil {
t.Fatal(err)
}
cmd = exec.Command(dockerBinary, "run", "--volumes-from", "parent:ro", "busybox", "touch", "/test/file")
if code, err := runCommand(cmd); err == nil || code == 0 {
t.Fatalf("run should fail because volume is ro: exit code %d", code)
}
deleteAllContainers()
logDone("run - volumes from as readonly mount")
}
// Regression test for #1201
func TestVolumesFromInReadWriteMode(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "--name", "parent", "-v", "/test", "busybox", "true")
if _, err := runCommand(cmd); err != nil {
t.Fatal(err)
}
cmd = exec.Command(dockerBinary, "run", "--volumes-from", "parent", "busybox", "touch", "/test/file")
if _, err := runCommand(cmd); err != nil {
t.Fatal(err)
}
deleteAllContainers()
logDone("run - volumes from as read write mount")
}
// Test for #1351
func TestApplyVolumesFromBeforeVolumes(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "--name", "parent", "-v", "/test", "busybox", "touch", "/test/foo")
if _, err := runCommand(cmd); err != nil {
t.Fatal(err)
}
cmd = exec.Command(dockerBinary, "run", "--volumes-from", "parent", "-v", "/test", "busybox", "cat", "/test/foo")
if _, err := runCommand(cmd); err != nil {
t.Fatal(err)
}
deleteAllContainers()
logDone("run - volumes from mounted first")
}
func TestMultipleVolumesFrom(t *testing.T) {
cmd := exec.Command(dockerBinary, "run", "--name", "parent1", "-v", "/test", "busybox", "touch", "/test/foo")
if _, err := runCommand(cmd); err != nil {
t.Fatal(err)
}
cmd = exec.Command(dockerBinary, "run", "--name", "parent2", "-v", "/other", "busybox", "touch", "/other/bar")
if _, err := runCommand(cmd); err != nil {
t.Fatal(err)
}
cmd = exec.Command(dockerBinary, "run", "--volumes-from", "parent1", "--volumes-from", "parent2",
"busybox", "sh", "-c", "cat /test/foo && cat /other/bar")
if _, err := runCommand(cmd); err != nil {
t.Fatal(err)
}
deleteAllContainers()
logDone("run - multiple volumes from")
}

262
integration/container_test.go
View file

@ -1273,123 +1273,6 @@ func TestBindMounts(t *testing.T) {
}
}
// Test that -volumes-from supports both read-only mounts
func TestFromVolumesInReadonlyMode(t *testing.T) {
runtime := mkRuntime(t)
defer nuke(runtime)
container, _, err := runtime.Create(
&runconfig.Config{
Image: GetTestImage(runtime).ID,
Cmd: []string{"/bin/echo", "-n", "foobar"},
Volumes: map[string]struct{}{"/test": {}},
},
"",
)
if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(container)
_, err = container.Output()
if err != nil {
t.Fatal(err)
}
if !container.VolumesRW["/test"] {
t.Fail()
}
container2, _, err := runtime.Create(
&runconfig.Config{
Image: GetTestImage(runtime).ID,
Cmd: []string{"/bin/echo", "-n", "foobar"},
VolumesFrom: container.ID + ":ro",
},
"",
)
if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(container2)
_, err = container2.Output()
if err != nil {
t.Fatal(err)
}
if container.Volumes["/test"] != container2.Volumes["/test"] {
t.Logf("container volumes do not match: %s | %s ",
container.Volumes["/test"],
container2.Volumes["/test"])
t.Fail()
}
_, exists := container2.VolumesRW["/test"]
if !exists {
t.Logf("container2 is missing '/test' volume: %s", container2.VolumesRW)
t.Fail()
}
if container2.VolumesRW["/test"] != false {
t.Log("'/test' volume mounted in read-write mode, expected read-only")
t.Fail()
}
}
// Test that VolumesRW values are copied to the new container. Regression test for #1201
func TestVolumesFromReadonlyMount(t *testing.T) {
runtime := mkRuntime(t)
defer nuke(runtime)
container, _, err := runtime.Create(
&runconfig.Config{
Image: GetTestImage(runtime).ID,
Cmd: []string{"/bin/echo", "-n", "foobar"},
Volumes: map[string]struct{}{"/test": {}},
},
"",
)
if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(container)
_, err = container.Output()
if err != nil {
t.Fatal(err)
}
if !container.VolumesRW["/test"] {
t.Fail()
}
container2, _, err := runtime.Create(
&runconfig.Config{
Image: GetTestImage(runtime).ID,
Cmd: []string{"/bin/echo", "-n", "foobar"},
VolumesFrom: container.ID,
},
"",
)
if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(container2)
_, err = container2.Output()
if err != nil {
t.Fatal(err)
}
if container.Volumes["/test"] != container2.Volumes["/test"] {
t.Fail()
}
actual, exists := container2.VolumesRW["/test"]
if !exists {
t.Fail()
}
if container.VolumesRW["/test"] != actual {
t.Fail()
}
}
// Test that restarting a container with a volume does not create a new volume on restart. Regression test for #819.
func TestRestartWithVolumes(t *testing.T) {
runtime := mkRuntime(t)
@ -1434,73 +1317,6 @@ func TestRestartWithVolumes(t *testing.T) {
}
}
// Test for #1351
func TestVolumesFromWithVolumes(t *testing.T) {
runtime := mkRuntime(t)
defer nuke(runtime)
container, _, err := runtime.Create(&runconfig.Config{
Image: GetTestImage(runtime).ID,
Cmd: []string{"sh", "-c", "echo -n bar > /test/foo"},
Volumes: map[string]struct{}{"/test": {}},
},
"",
)
if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(container)
for key := range container.Config.Volumes {
if key != "/test" {
t.Fail()
}
}
_, err = container.Output()
if err != nil {
t.Fatal(err)
}
expected := container.Volumes["/test"]
if expected == "" {
t.Fail()
}
container2, _, err := runtime.Create(
&runconfig.Config{
Image: GetTestImage(runtime).ID,
Cmd: []string{"cat", "/test/foo"},
VolumesFrom: container.ID,
Volumes: map[string]struct{}{"/test": {}},
},
"",
)
if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(container2)
output, err := container2.Output()
if err != nil {
t.Fatal(err)
}
if string(output) != "bar" {
t.Fail()
}
if container.Volumes["/test"] != container2.Volumes["/test"] {
t.Fail()
}
// Ensure it restarts successfully
_, err = container2.Output()
if err != nil {
t.Fatal(err)
}
}
func TestContainerNetwork(t *testing.T) {
runtime := mkRuntime(t)
defer nuke(runtime)
@ -1636,81 +1452,3 @@ func TestUnprivilegedCannotMount(t *testing.T) {
t.Fatal("Could mount into secure container")
}
}
func TestMultipleVolumesFrom(t *testing.T) {
runtime := mkRuntime(t)
defer nuke(runtime)
container, _, err := runtime.Create(&runconfig.Config{
Image: GetTestImage(runtime).ID,
Cmd: []string{"sh", "-c", "echo -n bar > /test/foo"},
Volumes: map[string]struct{}{"/test": {}},
},
"",
)
if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(container)
for key := range container.Config.Volumes {
if key != "/test" {
t.Fail()
}
}
_, err = container.Output()
if err != nil {
t.Fatal(err)
}
expected := container.Volumes["/test"]
if expected == "" {
t.Fail()
}
container2, _, err := runtime.Create(
&runconfig.Config{
Image: GetTestImage(runtime).ID,
Cmd: []string{"sh", "-c", "echo -n bar > /other/foo"},
Volumes: map[string]struct{}{"/other": {}},
},
"",
)
if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(container2)
for key := range container2.Config.Volumes {
if key != "/other" {
t.FailNow()
}
}
if _, err := container2.Output(); err != nil {
t.Fatal(err)
}
container3, _, err := runtime.Create(
&runconfig.Config{
Image: GetTestImage(runtime).ID,
Cmd: []string{"/bin/echo", "-n", "foobar"},
VolumesFrom: strings.Join([]string{container.ID, container2.ID}, ","),
}, "")
if err != nil {
t.Fatal(err)
}
defer runtime.Destroy(container3)
if _, err := container3.Output(); err != nil {
t.Fatal(err)
}
if container3.Volumes["/test"] != container.Volumes["/test"] {
t.Fail()
}
if container3.Volumes["/other"] != container2.Volumes["/other"] {
t.Fail()
}
}

3
runconfig/compare.go
View file

@ -14,8 +14,7 @@ func Compare(a, b *Config) bool {
a.MemorySwap != b.MemorySwap ||
a.CpuShares != b.CpuShares ||
a.OpenStdin != b.OpenStdin ||
a.Tty != b.Tty ||
a.VolumesFrom != b.VolumesFrom {
a.Tty != b.Tty {
return false
}
if len(a.Cmd) != len(b.Cmd) ||

2
runconfig/config.go
View file

@ -27,7 +27,6 @@ type Config struct {
Cmd []string
Image string // Name of the image as it was passed by the operator (eg. could be symbolic)
Volumes map[string]struct{}
VolumesFrom string
WorkingDir string
Entrypoint []string
NetworkDisabled bool
@ -49,7 +48,6 @@ func ContainerConfigFromJob(job *engine.Job) *Config {
OpenStdin: job.GetenvBool("OpenStdin"),
StdinOnce: job.GetenvBool("StdinOnce"),
Image: job.Getenv("Image"),
VolumesFrom: job.Getenv("VolumesFrom"),
WorkingDir: job.Getenv("WorkingDir"),
NetworkDisabled: job.GetenvBool("NetworkDisabled"),
}

17
runconfig/config_test.go
View file

@ -165,19 +165,11 @@ func TestCompare(t *testing.T) {
config1 := Config{
PortSpecs: []string{"1111:1111", "2222:2222"},
Env: []string{"VAR1=1", "VAR2=2"},
VolumesFrom: "11111111",
Volumes: volumes1,
}
config3 := Config{
PortSpecs: []string{"0000:0000", "2222:2222"},
Env: []string{"VAR1=1", "VAR2=2"},
VolumesFrom: "11111111",
Volumes: volumes1,
}
config4 := Config{
PortSpecs: []string{"0000:0000", "2222:2222"},
Env: []string{"VAR1=1", "VAR2=2"},
VolumesFrom: "22222222",
Volumes: volumes1,
}
volumes2 := make(map[string]struct{})
@ -185,15 +177,11 @@ func TestCompare(t *testing.T) {
config5 := Config{
PortSpecs: []string{"0000:0000", "2222:2222"},
Env: []string{"VAR1=1", "VAR2=2"},
VolumesFrom: "11111111",
Volumes: volumes2,
}
if Compare(&config1, &config3) {
t.Fatalf("Compare should return false, PortSpecs are different")
}
if Compare(&config1, &config4) {
t.Fatalf("Compare should return false, VolumesFrom are different")
}
if Compare(&config1, &config5) {
t.Fatalf("Compare should return false, Volumes are different")
}
@ -209,7 +197,6 @@ func TestMerge(t *testing.T) {
configImage := &Config{
PortSpecs: []string{"1111:1111", "2222:2222"},
Env: []string{"VAR1=1", "VAR2=2"},
VolumesFrom: "1111",
Volumes: volumesImage,
}
@ -251,10 +238,6 @@ func TestMerge(t *testing.T) {
}
}
if configUser.VolumesFrom != "1111" {
t.Fatalf("Expected VolumesFrom to be 1111, found %s", configUser.VolumesFrom)
}
ports, _, err := nat.ParsePortSpecs([]string{"0000"})
if err != nil {
t.Error(err)

2
runconfig/hostconfig.go
View file

@ -16,6 +16,7 @@ type HostConfig struct {
PublishAllPorts bool
Dns []string
DnsSearch []string
VolumesFrom string
}
func ContainerHostConfigFromJob(job *engine.Job) *HostConfig {
@ -23,6 +24,7 @@ func ContainerHostConfigFromJob(job *engine.Job) *HostConfig {
ContainerIDFile: job.Getenv("ContainerIDFile"),
Privileged: job.GetenvBool("Privileged"),
PublishAllPorts: job.GetenvBool("PublishAllPorts"),
VolumesFrom: job.Getenv("VolumesFrom"),
}
job.GetenvJson("LxcConf", &hostConfig.LxcConf)
job.GetenvJson("PortBindings", &hostConfig.PortBindings)

3
runconfig/merge.go
View file

@ -100,9 +100,6 @@ func Merge(userConf, imageConf *Config) error {
if userConf.WorkingDir == "" {
userConf.WorkingDir = imageConf.WorkingDir
}
if userConf.VolumesFrom == "" {
userConf.VolumesFrom = imageConf.VolumesFrom
}
if userConf.Volumes == nil || len(userConf.Volumes) == 0 {
userConf.Volumes = imageConf.Volumes
} else {

2
runconfig/parse.go
View file

@ -215,7 +215,6 @@ func parseRun(cmd *flag.FlagSet, args []string, sysInfo *sysinfo.SysInfo) (*Conf
Cmd: runCmd,
Image: image,
Volumes: flVolumes.GetMap(),
VolumesFrom: strings.Join(flVolumesFrom.GetAll(), ","),
Entrypoint: entrypoint,
WorkingDir: *flWorkingDir,
}
@ -230,6 +229,7 @@ func parseRun(cmd *flag.FlagSet, args []string, sysInfo *sysinfo.SysInfo) (*Conf
PublishAllPorts: *flPublishAll,
Dns: flDns.GetAll(),
DnsSearch: flDnsSearch.GetAll(),
VolumesFrom: strings.Join(flVolumesFrom.GetAll(), ","),
}
if sysInfo != nil && flMemory > 0 && !sysInfo.SwapLimit {

7
runtime/volumes.go
View file

@ -59,8 +59,9 @@ func setupMountsForContainer(container *Container, envPath string) error {
}
func applyVolumesFrom(container *Container) error {
if container.Config.VolumesFrom != "" {
for _, containerSpec := range strings.Split(container.Config.VolumesFrom, ",") {
volumesFrom := container.hostConfig.VolumesFrom
if volumesFrom != "" {
for _, containerSpec := range strings.Split(volumesFrom, ",") {
var (
mountRW = true
specParts = strings.SplitN(containerSpec, ":", 2)
@ -68,7 +69,7 @@ func applyVolumesFrom(container *Container) error {
switch len(specParts) {
case 0:
return fmt.Errorf("Malformed volumes-from specification: %s", container.Config.VolumesFrom)
return fmt.Errorf("Malformed volumes-from specification: %s", volumesFrom)
case 2:
switch specParts[1] {
case "ro":