func TestHash2(t *testing.T) {
assert := require.New(t)
cfg := &config.ContainerConfig{
Id: "docker-volumes",
Cmd: "",
MigrateVolumes: false,
ReloadConfig: false,
CreateOnly: true,
Service: &project.ServiceConfig{
CapAdd: nil,
CapDrop: nil,
CpuShares: 0,
Command: project.NewCommand(),
Detach: "",
Dns: project.NewStringorslice(),
DnsSearch: project.NewStringorslice(),
DomainName: "",
Entrypoint: project.NewCommand(),
EnvFile: project.NewStringorslice(),
Environment: project.NewMaporEqualSlice([]string{}),
Hostname: "",
Image: "state",
Labels: project.NewSliceorMap(map[string]string{
"io.rancher.os.createonly": "true",
"io.rancher.os.scope": "system"}),
Links: project.NewMaporColonSlice(nil),
LogDriver: "json-file",
MemLimit: 0,
Name: "",
Net: "none",
Pid: "",
Ipc: "",
Ports: nil,
Privileged: true,
Restart: "",
ReadOnly: true,
StdinOpen: false,
Tty: false,
User: "",
Volumes: []string{
"/var/lib/docker:/var/lib/docker",
"/var/lib/rancher/conf:/var/lib/rancher/conf",
"/var/lib/system-docker:/var/lib/system-docker"},
VolumesFrom: nil,
WorkingDir: "",
Expose: nil,
ExternalLinks: nil},
}
for i := 0; i < 1000; i++ {
assert.Equal(getHash(cfg), getHash(cfg), fmt.Sprintf("Failed at iteration: %v", i))
}
}
func autoformat(cfg *config.Config) error {
if len(cfg.State.Autoformat) == 0 || util.ResolveDevice(cfg.State.Dev) != "" {
return nil
}
var format string
outer:
for _, dev := range cfg.State.Autoformat {
log.Infof("Checking %s to auto-format", dev)
if _, err := os.Stat(dev); os.IsNotExist(err) {
continue
}
f, err := os.Open(dev)
if err != nil {
return err
}
defer f.Close()
buffer := make([]byte, 1048576, 1048576)
c, err := f.Read(buffer)
if err != nil {
return err
}
if c != 1048576 {
log.Infof("%s not right size", dev)
continue
}
boot2docker := false
if strings.HasPrefix(string(buffer[:len(boot2dockerMagic)]), boot2dockerMagic) {
boot2docker = true
}
if boot2docker == false {
for _, b := range buffer {
if b != 0 {
log.Infof("%s not empty", dev)
continue outer
}
}
}
format = dev
break
}
if format != "" {
log.Infof("Auto formatting : %s", format)
// copy
udev := *cfg.BootstrapContainers["udev"]
udev.Links = project.NewMaporColonSlice(append(udev.Links.Slice(), "autoformat"))
udev.LogDriver = "json-file"
err := docker.RunServices("autoformat", cfg, map[string]*project.ServiceConfig{
"autoformat": {
Net: "none",
Privileged: true,
Image: "rancher/os-autoformat:" + config.VERSION,
Command: project.NewCommand(format),
Labels: project.NewSliceorMap(map[string]string{
config.DETACH: "false",
config.SCOPE: config.SYSTEM,
}),
LogDriver: "json-file",
Environment: project.NewMaporEqualSlice([]string{
"MAGIC=" + boot2dockerMagic,
}),
},
"udev": &udev,
})
return err
}
return nil
}