diff options
Diffstat (limited to 'libpod/container.go')
-rw-r--r-- | libpod/container.go | 66 |
1 files changed, 64 insertions, 2 deletions
diff --git a/libpod/container.go b/libpod/container.go index bd7455147..e1b002548 100644 --- a/libpod/container.go +++ b/libpod/container.go @@ -407,8 +407,54 @@ func (c *Container) teardownStorage() error { return nil } +// Refresh refreshes the container's state after a restart +func (c *Container) refresh() error { + c.lock.Lock() + defer c.lock.Unlock() + + if !c.valid { + return errors.Wrapf(ErrCtrRemoved, "container %s has been removed from the state", c.ID()) + } + + // We need to get the container's temporary directory from c/storage + // It was lost in the reboot and must be recreated + dir, err := c.runtime.storageService.GetRunDir(c.ID()) + if err != nil { + return errors.Wrapf(err, "error retrieving temporary directory for container %s", c.ID()) + } + c.state.RunDir = dir + + // The container is no longer mounted + c.state.Mounted = false + c.state.Mountpoint = "" + + // The container is no longe running + c.state.PID = 0 + + // Check the container's state. If it's not created in runc yet, we're + // done + if c.state.State == ContainerStateConfigured { + if err := c.runtime.state.SaveContainer(c); err != nil { + return errors.Wrapf(err, "error refreshing state for container %s", c.ID()) + } + + return nil + } + + // The container must be recreated in runc + if err := c.init(); err != nil { + return err + } + + if err := c.runtime.state.SaveContainer(c); err != nil { + return errors.Wrapf(err, "error refreshing state for container %s", c.ID()) + } + + return nil +} + // Init creates a container in the OCI runtime -func (c *Container) Init() (err error) { +func (c *Container) Init() error { c.lock.Lock() defer c.lock.Unlock() @@ -420,7 +466,12 @@ func (c *Container) Init() (err error) { return errors.Wrapf(ErrCtrExists, "container %s has already been created in runtime", c.ID()) } - // Mount storage for the container + return c.init() +} + +// Creates container in OCI runtime +// Internal only - does not lock or check state +func (c *Container) init() (err error) { if err := c.mountStorage(); err != nil { return err } @@ -436,6 +487,17 @@ func (c *Container) Init() (err error) { // Save the OCI spec to disk jsonPath := filepath.Join(c.bundlePath(), "config.json") + // If the OCI spec already exists, replace it + if _, err := os.Stat(jsonPath); err != nil { + if !os.IsNotExist(err) { + return errors.Wrapf(err, "error doing stat on container %s spec", c.ID()) + } + } else { + // No error, the spec exists. Remove so we can replace. + if err := os.Remove(jsonPath); err != nil { + return errors.Wrapf(err, "error replacing spec of container %s", c.ID()) + } + } fileJSON, err := json.Marshal(c.runningSpec) if err != nil { return errors.Wrapf(err, "error exporting runtime spec for container %s to JSON", c.ID()) |