func (p rootDevicePartitioner) GetDeviceSizeInBytes(devicePath string) (uint64, error) {
p.logger.Debug(p.logTag, "Getting size of disk remaining after first partition")
stdout, _, _, err := p.cmdRunner.RunCommand("parted", "-m", devicePath, "unit", "B", "print")
if err != nil {
return 0, bosherr.WrapErrorf(err, "Getting remaining size of `%s'", devicePath)
}
allLines := strings.Split(stdout, "\n")
if len(allLines) < 3 {
return 0, bosherr.Errorf("Getting remaining size of `%s'", devicePath)
}
partitionInfoLines := allLines[1:3]
deviceInfo := strings.Split(partitionInfoLines[0], ":")
deviceFullSizeInBytes, err := strconv.ParseUint(strings.TrimRight(deviceInfo[1], "B"), 10, 64)
if err != nil {
return 0, bosherr.WrapErrorf(err, "Getting remaining size of `%s'", devicePath)
}
firstPartitionInfo := strings.Split(partitionInfoLines[1], ":")
firstPartitionEndInBytes, err := strconv.ParseUint(strings.TrimRight(firstPartitionInfo[2], "B"), 10, 64)
if err != nil {
return 0, bosherr.WrapErrorf(err, "Getting remaining size of `%s'", devicePath)
}
remainingSizeInBytes := deviceFullSizeInBytes - firstPartitionEndInBytes - 1
return remainingSizeInBytes, nil
}
func (fs *osFileSystem) Chown(path, username string) error {
fs.logger.Debug(fs.logTag, "Chown %s to user %s", path, username)
uid, err := fs.runCommand(fmt.Sprintf("id -u %s", username))
if err != nil {
return bosherr.WrapErrorf(err, "Getting user id for '%s'", username)
}
uidAsInt, err := strconv.Atoi(uid)
if err != nil {
return bosherr.WrapError(err, "Converting UID to integer")
}
gid, err := fs.runCommand(fmt.Sprintf("id -g %s", username))
if err != nil {
return bosherr.WrapErrorf(err, "Getting group id for '%s'", username)
}
gidAsInt, err := strconv.Atoi(gid)
if err != nil {
return bosherr.WrapError(err, "Converting GID to integer")
}
err = os.Chown(path, uidAsInt, gidAsInt)
if err != nil {
return bosherr.WrapError(err, "Doing Chown")
}
return nil
}
func (fs *osFileSystem) Symlink(oldPath, newPath string) error {
fs.logger.Debug(fs.logTag, "Symlinking oldPath %s with newPath %s", oldPath, newPath)
actualOldPath, err := filepath.EvalSymlinks(oldPath)
if err != nil {
return bosherr.WrapErrorf(err, "Evaluating symlinks for %s", oldPath)
}
existingTargetedPath, err := filepath.EvalSymlinks(newPath)
if err == nil {
if existingTargetedPath == actualOldPath {
return nil
}
err = os.Remove(newPath)
if err != nil {
return bosherr.WrapErrorf(err, "Failed to delete symlimk at %s", newPath)
}
}
containingDir := filepath.Dir(newPath)
if !fs.FileExists(containingDir) {
fs.MkdirAll(containingDir, os.FileMode(0700))
}
return os.Symlink(oldPath, newPath)
}
func (fs *osFileSystem) ConvergeFileContents(path string, content []byte) (bool, error) {
if fs.filesAreIdentical(content, path) {
fs.logger.Debug(fs.logTag, "Skipping writing %s because contents are identical", path)
return false, nil
}
fs.logger.Debug(fs.logTag, "File %s will be overwritten", path)
err := fs.MkdirAll(filepath.Dir(path), os.ModePerm)
if err != nil {
return true, bosherr.WrapErrorf(err, "Making dir for file %s", path)
}
file, err := os.Create(path)
if err != nil {
return true, bosherr.WrapErrorf(err, "Creating file %s", path)
}
defer file.Close()
_, err = file.Write(content)
if err != nil {
return true, bosherr.WrapErrorf(err, "Writing content to file %s", path)
}
return true, nil
}
func (net centosNetManager) writeDHCPConfiguration(dnsServers []string, dhcpInterfaceConfigurations []DHCPInterfaceConfiguration) (bool, error) {
buffer := bytes.NewBuffer([]byte{})
t := template.Must(template.New("dhcp-config").Parse(centosDHCPConfigTemplate))
// Keep DNS servers in the order specified by the network
// because they are added by a *single* DHCP's prepend command
dnsServersList := strings.Join(dnsServers, ", ")
err := t.Execute(buffer, dnsServersList)
if err != nil {
return false, bosherr.WrapError(err, "Generating config from template")
}
dhclientConfigFile := "/etc/dhcp/dhclient.conf"
changed, err := net.fs.ConvergeFileContents(dhclientConfigFile, buffer.Bytes())
if err != nil {
return changed, bosherr.WrapErrorf(err, "Writing to %s", dhclientConfigFile)
}
for i := range dhcpInterfaceConfigurations {
name := dhcpInterfaceConfigurations[i].Name
interfaceDhclientConfigFile := filepath.Join("/etc/dhcp/", "dhclient-"+name+".conf")
err = net.fs.Symlink(dhclientConfigFile, interfaceDhclientConfigFile)
if err != nil {
return changed, bosherr.WrapErrorf(err, "Symlinking '%s' to '%s'", interfaceDhclientConfigFile, dhclientConfigFile)
}
}
return changed, nil
}
func (p linux) setupRunDir(sysDir string) error {
runDir := filepath.Join(sysDir, "run")
runDirIsMounted, err := p.IsMountPoint(runDir)
if err != nil {
return bosherr.WrapErrorf(err, "Checking for mount point %s", runDir)
}
if !runDirIsMounted {
err = p.fs.MkdirAll(runDir, runDirPermissions)
if err != nil {
return bosherr.WrapErrorf(err, "Making %s dir", runDir)
}
err = p.diskManager.GetMounter().Mount("tmpfs", runDir, "-t", "tmpfs", "-o", "size=1m")
if err != nil {
return bosherr.WrapErrorf(err, "Mounting tmpfs to %s", runDir)
}
_, _, _, err = p.cmdRunner.RunCommand("chown", "root:vcap", runDir)
if err != nil {
return bosherr.WrapErrorf(err, "chown %s", runDir)
}
}
return nil
}
func (p linux) SetupDataDir() error {
dataDir := p.dirProvider.DataDir()
sysDataDir := filepath.Join(dataDir, "sys")
logDir := filepath.Join(sysDataDir, "log")
err := p.fs.MkdirAll(logDir, logDirPermissions)
if err != nil {
return bosherr.WrapErrorf(err, "Making %s dir", logDir)
}
_, _, _, err = p.cmdRunner.RunCommand("chown", "root:vcap", sysDataDir)
if err != nil {
return bosherr.WrapErrorf(err, "chown %s", sysDataDir)
}
_, _, _, err = p.cmdRunner.RunCommand("chown", "root:vcap", logDir)
if err != nil {
return bosherr.WrapErrorf(err, "chown %s", logDir)
}
err = p.setupRunDir(sysDataDir)
if err != nil {
return err
}
sysDir := filepath.Join(filepath.Dir(dataDir), "sys")
err = p.fs.Symlink(sysDataDir, sysDir)
if err != nil {
return bosherr.WrapErrorf(err, "Symlinking '%s' to '%s'", sysDir, sysDataDir)
}
return nil
}
func (p sfdiskPartitioner) diskMatchesPartitions(devicePath string, partitionsToMatch []Partition) (result bool) {
existingPartitions, err := p.getPartitions(devicePath)
if err != nil {
err = bosherr.WrapErrorf(err, "Getting partitions for %s", devicePath)
return
}
if len(existingPartitions) < len(partitionsToMatch) {
return
}
remainingDiskSpace, err := p.GetDeviceSizeInBytes(devicePath)
if err != nil {
err = bosherr.WrapErrorf(err, "Getting device size for %s", devicePath)
return
}
for index, partitionToMatch := range partitionsToMatch {
if index == len(partitionsToMatch)-1 {
partitionToMatch.SizeInBytes = remainingDiskSpace
}
existingPartition := existingPartitions[index]
switch {
case existingPartition.Type != partitionToMatch.Type:
return
case !withinDelta(existingPartition.SizeInBytes, partitionToMatch.SizeInBytes, p.convertFromMbToBytes(20)):
return
}
remainingDiskSpace = remainingDiskSpace - partitionToMatch.SizeInBytes
}
return true
}
func (p rootDevicePartitioner) Partition(devicePath string, partitions []Partition) error {
existingPartitions, deviceFullSizeInBytes, err := p.getPartitions(devicePath)
if err != nil {
return bosherr.WrapErrorf(err, "Getting existing partitions of `%s'", devicePath)
}
p.logger.Debug(p.logTag, "Current partitions: %#v", existingPartitions)
if len(existingPartitions) == 0 {
return bosherr.Errorf("Missing first partition on `%s'", devicePath)
}
if p.partitionsMatch(existingPartitions[1:], partitions) {
p.logger.Info(p.logTag, "Partitions already match, skipping partitioning")
return nil
}
if len(existingPartitions) > 1 {
p.logger.Error(p.logTag,
"Failed to create ephemeral partitions on root device `%s'. Expected 1 partition, found %d: %s",
devicePath,
len(existingPartitions),
existingPartitions,
)
return bosherr.Errorf("Found %d unexpected partitions on `%s'", len(existingPartitions)-1, devicePath)
}
// To support optimal reads on HDDs and optimal erasure on SSD: use 1MiB partition alignments.
alignmentInBytes := uint64(1048576)
partitionStart := p.roundUp(existingPartitions[0].EndInBytes+1, alignmentInBytes)
for index, partition := range partitions {
partitionEnd := partitionStart + partition.SizeInBytes - 1
if partitionEnd >= deviceFullSizeInBytes {
partitionEnd = deviceFullSizeInBytes - 1
p.logger.Info(p.logTag, "Partition %d would be larger than remaining space. Reducing size to %dB", index, partitionEnd-partitionStart)
}
p.logger.Info(p.logTag, "Creating partition %d with start %dB and end %dB", index, partitionStart, partitionEnd)
_, _, _, err := p.cmdRunner.RunCommand(
"parted",
"-s",
devicePath,
"unit",
"B",
"mkpart",
"primary",
fmt.Sprintf("%d", partitionStart),
fmt.Sprintf("%d", partitionEnd),
)
if err != nil {
return bosherr.WrapErrorf(err, "Partitioning disk `%s'", devicePath)
}
partitionStart = p.roundUp(partitionEnd+1, alignmentInBytes)
}
return nil
}
func (dispatcher concreteActionDispatcher) dispatchAsynchronousAction(
action boshaction.Action,
req boshhandler.Request,
) boshhandler.Response {
dispatcher.logger.Info(actionDispatcherLogTag, "Running async action %s", req.Method)
var task boshtask.Task
var err error
runTask := func() (interface{}, error) {
return dispatcher.actionRunner.Run(action, req.GetPayload())
}
cancelTask := func(_ boshtask.Task) error { return action.Cancel() }
// Certain long-running tasks (e.g. configure_networks) must be resumed
// after agent restart so that API consumers do not need to know
// if agent is restarted midway through the task.
if action.IsPersistent() {
dispatcher.logger.Info(actionDispatcherLogTag, "Running persistent action %s", req.Method)
task, err = dispatcher.taskService.CreateTask(runTask, cancelTask, dispatcher.removeInfo)
if err != nil {
err = bosherr.WrapErrorf(err, "Create Task Failed %s", req.Method)
dispatcher.logger.Error(actionDispatcherLogTag, err.Error())
return boshhandler.NewExceptionResponse(err)
}
taskInfo := boshtask.Info{
TaskID: task.ID,
Method: req.Method,
Payload: req.GetPayload(),
}
err = dispatcher.taskManager.AddInfo(taskInfo)
if err != nil {
err = bosherr.WrapErrorf(err, "Action Failed %s", req.Method)
dispatcher.logger.Error(actionDispatcherLogTag, err.Error())
return boshhandler.NewExceptionResponse(err)
}
} else {
task, err = dispatcher.taskService.CreateTask(runTask, cancelTask, nil)
if err != nil {
err = bosherr.WrapErrorf(err, "Create Task Failed %s", req.Method)
dispatcher.logger.Error(actionDispatcherLogTag, err.Error())
return boshhandler.NewExceptionResponse(err)
}
}
dispatcher.taskService.StartTask(task)
return boshhandler.NewValueResponse(boshtask.StateValue{
AgentTaskID: task.ID,
State: task.State,
})
}
func (m linuxMounter) Remount(fromMountPoint, toMountPoint string, mountOptions ...string) error {
partitionPath, found, err := m.findDeviceMatchingMountPoint(fromMountPoint)
if err != nil || !found {
return bosherr.WrapErrorf(err, "Error finding device for mount point %s", fromMountPoint)
}
_, err = m.Unmount(fromMountPoint)
if err != nil {
return bosherr.WrapErrorf(err, "Unmounting %s", fromMountPoint)
}
return m.Mount(partitionPath, toMountPoint, mountOptions...)
}
func (p linux) changeTmpDirPermissions(path string) error {
_, _, _, err := p.cmdRunner.RunCommand("chown", "root:vcap", path)
if err != nil {
return bosherr.WrapErrorf(err, "chown %s", path)
}
_, _, _, err = p.cmdRunner.RunCommand("chmod", "0770", path)
if err != nil {
return bosherr.WrapErrorf(err, "chmod %s", path)
}
return nil
}
// TerminateNicely can be called multiple times simultaneously from different goroutines
func (p *execProcess) TerminateNicely(killGracePeriod time.Duration) error {
// Make sure process is being waited on for process state reaping to occur
// as to avoid forcibly killing the process after killGracePeriod
if p.waitCh == nil {
panic("TerminateNicely() must be called after Wait()")
}
err := p.signalGroup(syscall.SIGTERM)
if err != nil {
return bosherr.WrapErrorf(err, "Sending SIGTERM to process group %d", p.pid)
}
terminatedCh := make(chan struct{})
stopCheckingTerminatedCh := make(chan struct{})
go func() {
for p.groupExists() {
select {
case <-time.After(500 * time.Millisecond):
// nothing to do
case <-stopCheckingTerminatedCh:
return
}
}
close(terminatedCh)
}()
select {
case <-terminatedCh:
// nothing to do
case <-time.After(killGracePeriod):
close(stopCheckingTerminatedCh)
err = p.signalGroup(syscall.SIGKILL)
if err != nil {
return bosherr.WrapErrorf(err, "Sending SIGKILL to process group %d", p.pid)
}
}
// It takes some time for the process to disappear
for i := 0; i < 20; i++ {
if !p.groupExists() {
return nil
}
time.Sleep(500 * time.Millisecond)
}
return bosherr.Errorf("Failed to kill process after grace timeout (PID %d)", p.pid)
}
func (fs *osFileSystem) listDirContents(dirPath string) ([]os.FileInfo, error) {
directory, err := os.Open(dirPath)
if err != nil {
return nil, bosherr.WrapErrorf(err, "Openning dir '%s' for reading", dirPath)
}
defer directory.Close()
files, err := directory.Readdir(-1)
if err != nil {
return nil, bosherr.WrapErrorf(err, "Reading dir '%s' contents", dirPath)
}
return files, nil
}
func (r ipResolver) GetPrimaryIPv4(interfaceName string) (*gonet.IPNet, error) {
addrs, err := r.ifaceToAddrsFunc(interfaceName)
if err != nil {
return nil, bosherr.WrapErrorf(err, "Looking up addresses for interface '%s'", interfaceName)
}
if len(addrs) == 0 {
return nil, bosherr.Errorf("No addresses found for interface '%s'", interfaceName)
}
for _, addr := range addrs {
ip, ok := addr.(*gonet.IPNet)
if !ok {
continue
}
// ignore ipv6
if ip.IP.To4() == nil {
continue
}
return ip, nil
}
return nil, bosherr.Errorf("Failed to find primary IPv4 address for interface '%s'", interfaceName)
}
func (h *natsHandler) Start(handlerFunc boshhandler.Func) error {
h.RegisterAdditionalFunc(handlerFunc)
connProvider, err := h.getConnectionInfo()
if err != nil {
return bosherr.WrapError(err, "Getting connection info")
}
err = h.client.Connect(connProvider)
if err != nil {
return bosherr.WrapError(err, "Connecting")
}
settings := h.settingsService.GetSettings()
subject := fmt.Sprintf("agent.%s", settings.AgentID)
h.logger.Info(h.logTag, "Subscribing to %s", subject)
_, err = h.client.Subscribe(subject, func(natsMsg *yagnats.Message) {
for _, handlerFunc := range h.handlerFuncs {
h.handleNatsMsg(natsMsg, handlerFunc)
}
})
if err != nil {
return bosherr.WrapErrorf(err, "Subscribing to %s", subject)
}
return nil
}
func (p linux) partitionEphemeralDisk(realPath string) (string, string, error) {
p.logger.Info(logTag, "Creating swap & ephemeral partitions on ephemeral disk...")
p.logger.Debug(logTag, "Getting device size of `%s'", realPath)
diskSizeInBytes, err := p.diskManager.GetPartitioner().GetDeviceSizeInBytes(realPath)
if err != nil {
return "", "", bosherr.WrapError(err, "Getting device size")
}
p.logger.Debug(logTag, "Calculating ephemeral disk partition sizes of `%s' with total disk size %dB", realPath, diskSizeInBytes)
swapSizeInBytes, linuxSizeInBytes, err := p.calculateEphemeralDiskPartitionSizes(diskSizeInBytes)
if err != nil {
return "", "", bosherr.WrapError(err, "Calculating partition sizes")
}
partitions := []boshdisk.Partition{
{SizeInBytes: swapSizeInBytes, Type: boshdisk.PartitionTypeSwap},
{SizeInBytes: linuxSizeInBytes, Type: boshdisk.PartitionTypeLinux},
}
p.logger.Info(logTag, "Partitioning ephemeral disk `%s' with %s", realPath, partitions)
err = p.diskManager.GetPartitioner().Partition(realPath, partitions)
if err != nil {
return "", "", bosherr.WrapErrorf(err, "Partitioning ephemeral disk `%s'", realPath)
}
swapPartitionPath := realPath + "1"
dataPartitionPath := realPath + "2"
return swapPartitionPath, dataPartitionPath, nil
}
func (r defaultNetworkResolver) GetDefaultNetwork() (boshsettings.Network, error) {
network := boshsettings.Network{}
routes, err := r.routesSearcher.SearchRoutes()
if err != nil {
return network, bosherr.WrapError(err, "Searching routes")
}
if len(routes) == 0 {
return network, bosherr.Error("No routes found")
}
for _, route := range routes {
if !route.IsDefault() {
continue
}
ip, err := r.ipResolver.GetPrimaryIPv4(route.InterfaceName)
if err != nil {
return network, bosherr.WrapErrorf(err, "Getting primary IPv4 for interface '%s'", route.InterfaceName)
}
return boshsettings.Network{
IP: ip.IP.String(),
Netmask: gonet.IP(ip.Mask).String(),
Gateway: route.Gateway,
}, nil
}
return network, bosherr.Error("Failed to find default route")
}
func (net centosNetManager) writeIfcfgFile(name string, t *template.Template, config interface{}) (bool, error) {
buffer := bytes.NewBuffer([]byte{})
err := t.Execute(buffer, config)
if err != nil {
return false, bosherr.WrapErrorf(err, "Generating '%s' config from template", name)
}
filePath := ifcfgFilePath(name)
changed, err := net.fs.ConvergeFileContents(filePath, buffer.Bytes())
if err != nil {
return false, bosherr.WrapErrorf(err, "Writing config to '%s'", filePath)
}
return changed, nil
}
func (cdrom LinuxCdrom) Eject() (err error) {
_, stderr, _, err := cdrom.runner.RunCommand("eject", "-v", cdrom.devicePath)
if err != nil {
err = bosherr.WrapErrorf(err, "Ejecting CDROM: %s", stderr)
}
return
}
func (cdrom LinuxCdrom) Unmount() (err error) {
_, stderr, _, err := cdrom.runner.RunCommand("umount", cdrom.devicePath)
if err != nil {
err = bosherr.WrapErrorf(err, "Unmounting CDROM: %s", stderr)
}
return
}
func (a *concreteApplier) Apply(currentApplySpec, desiredApplySpec as.ApplySpec) error {
err := a.jobSupervisor.RemoveAllJobs()
if err != nil {
return bosherr.WrapError(err, "Removing all jobs")
}
jobs := desiredApplySpec.Jobs()
for _, job := range jobs {
err = a.jobApplier.Apply(job)
if err != nil {
return bosherr.WrapErrorf(err, "Applying job %s", job.Name)
}
}
err = a.jobApplier.KeepOnly(append(currentApplySpec.Jobs(), desiredApplySpec.Jobs()...))
if err != nil {
return bosherr.WrapError(err, "Keeping only needed jobs")
}
for _, pkg := range desiredApplySpec.Packages() {
err = a.packageApplier.Apply(pkg)
if err != nil {
return bosherr.WrapErrorf(err, "Applying package %s", pkg.Name)
}
}
err = a.packageApplier.KeepOnly(append(currentApplySpec.Packages(), desiredApplySpec.Packages()...))
if err != nil {
return bosherr.WrapError(err, "Keeping only needed packages")
}
for i := 0; i < len(jobs); i++ {
job := jobs[len(jobs)-1-i]
err = a.jobApplier.Configure(job, i)
if err != nil {
return bosherr.WrapErrorf(err, "Configuring job %s", job.Name)
}
}
err = a.jobSupervisor.Reload()
if err != nil {
return bosherr.WrapError(err, "Reloading jobSupervisor")
}
return a.setUpLogrotate(desiredApplySpec)
}
// New returns a new logger (that writes to the specified file) & the open file handle
// All log levels >= the specified level are written to the specified file.
// User is responsible for closing the returned file handle, unless an error is returned.
func New(level boshlog.LogLevel, filePath string, fileMode os.FileMode, fs boshsys.FileSystem) (boshlog.Logger, boshsys.File, error) {
file, err := fs.OpenFile(filePath, os.O_CREATE|os.O_WRONLY|os.O_APPEND, fileMode)
if err != nil {
return nil, file, bosherr.WrapErrorf(err, "Failed to open log file '%s'", filePath)
}
return boshlog.NewWriterLogger(level, file, file), file, nil
}
// applyPackages keeps job specific packages directory up-to-date with installed packages.
// (e.g. /var/vcap/jobs/job-a/packages/pkg-a has symlinks to /var/vcap/packages/pkg-a)
func (s *renderedJobApplier) applyPackages(job models.Job) error {
packageApplier := s.packageApplierProvider.JobSpecific(job.Name)
for _, pkg := range job.Packages {
err := packageApplier.Apply(pkg)
if err != nil {
return bosherr.WrapErrorf(err, "Applying package %s for job %s", pkg.Name, job.Name)
}
}
err := packageApplier.KeepOnly(job.Packages)
if err != nil {
return bosherr.WrapErrorf(err, "Keeping only needed packages for job %s", job.Name)
}
return nil
}
func (p linux) GetHostPublicKey() (string, error) {
hostPublicKeyPath := "/etc/ssh/ssh_host_rsa_key.pub"
hostPublicKey, err := p.fs.ReadFileString(hostPublicKeyPath)
if err != nil {
return "", bosherr.WrapErrorf(err, "Unable to read host public key file: %s", hostPublicKeyPath)
}
return hostPublicKey, nil
}
func (b externalBlobstore) run(method, src, dst string) (err error) {
_, _, _, err = b.runner.RunCommand(b.executable(), "-c", b.configFilePath, method, src, dst)
if err != nil {
return bosherr.WrapErrorf(err, "Shelling out to %s cli", b.executable())
}
return nil
}
func NetworkInterfaceToAddrsFunc(interfaceName string) ([]gonet.Addr, error) {
iface, err := gonet.InterfaceByName(interfaceName)
if err != nil {
return []gonet.Addr{}, bosherr.WrapErrorf(err, "Searching for '%s' interface", interfaceName)
}
return iface.Addrs()
}
func (a *concreteApplier) Prepare(desiredApplySpec as.ApplySpec) error {
for _, job := range desiredApplySpec.Jobs() {
err := a.jobApplier.Prepare(job)
if err != nil {
return bosherr.WrapErrorf(err, "Preparing job %s", job.Name)
}
}
for _, pkg := range desiredApplySpec.Packages() {
err := a.packageApplier.Prepare(pkg)
if err != nil {
return bosherr.WrapErrorf(err, "Preparing package %s", pkg.Name)
}
}
return nil
}
func (c concreteCompiler) fetchAndUncompress(pkg Package, targetDir string) error {
// Do not verify integrity of the download via SHA1
// because Director might have stored non-matching SHA1.
// This will be fixed in future by explicitly asking to verify SHA1
// instead of doing that by default like all other downloads.
// (Ruby agent mistakenly never checked SHA1.)
depFilePath, err := c.blobstore.Get(pkg.BlobstoreID, "")
if err != nil {
return bosherr.WrapErrorf(err, "Fetching package blob %s", pkg.BlobstoreID)
}
err = c.atomicDecompress(depFilePath, targetDir)
if err != nil {
return bosherr.WrapErrorf(err, "Uncompressing package %s", pkg.Name)
}
return nil
}
func (fs *osFileSystem) ReadFile(path string) (content []byte, err error) {
fs.logger.Debug(fs.logTag, "Reading file %s", path)
file, err := os.Open(path)
if err != nil {
err = bosherr.WrapErrorf(err, "Opening file %s", path)
return
}
defer file.Close()
bytes, err := ioutil.ReadAll(file)
if err != nil {
err = bosherr.WrapErrorf(err, "Reading file content %s", path)
return
}
content = bytes
fs.logger.DebugWithDetails(fs.logTag, "Read content", content)
return
}