func (a *Adapter) Init(config *client.Config) error {
var snapshot string = config.Snapshot.ID
if snapshot != "" {
if s3Bucket == "" {
log.Print("[lxc] WARNING: s3bucket is not defined, snapshot ignored")
snapshot = ""
} else {
snapshot = adapter.FormatUUID(snapshot)
}
}
// In reality our goal is to make a switch completely to lz4, but we need to retain
// compatibility with mesos builds for now, so we default to "xz" and also try
// to not uncleanly die if its set to a weird value, also setting it to "xz."
if compression != "xz" && compression != "lz4" {
compression = "xz"
log.Printf("[lxc] Warning: invalid compression %s, defaulting to lzma", compression)
}
executor := &Executor{
Name: executorName,
Directory: executorPath,
}
var mounts []*BindMount
mounts = nil
if bindMounts != "" {
mountStrings := strings.Split(bindMounts, ",")
mounts = make([]*BindMount, len(mountStrings))
for ind, ms := range mountStrings {
var err error
mounts[ind], err = ParseBindMount(ms)
if err != nil {
return err
}
}
}
container := &Container{
Name: config.JobstepID,
Arch: arch,
Dist: dist,
Release: release,
PreLaunch: preLaunch,
PostLaunch: postLaunch,
Snapshot: snapshot,
// TODO(dcramer): Move S3 logic into core engine
S3Bucket: s3Bucket,
MemoryLimit: memory,
CpuLimit: cpus,
Compression: compression,
Executor: executor,
BindMounts: mounts,
}
a.config = config
a.container = container
return nil
}
func (a *Adapter) CaptureSnapshot(outputSnapshot string, clientLog *client.Log) error {
outputSnapshot = adapter.FormatUUID(outputSnapshot)
err := a.container.CreateImage(outputSnapshot, clientLog)
if err != nil {
return err
}
if a.container.S3Bucket != "" {
err = a.container.UploadImage(outputSnapshot, clientLog)
if err != nil {
return err
}
} else {
log.Printf("[lxc] warning: cannot upload snapshot, no s3 bucket specified")
}
return nil
}