diff options
Diffstat (limited to 'libpod/container_internal.go')
-rw-r--r-- | libpod/container_internal.go | 86 |
1 files changed, 48 insertions, 38 deletions
diff --git a/libpod/container_internal.go b/libpod/container_internal.go index 0642c5aad..60e83576a 100644 --- a/libpod/container_internal.go +++ b/libpod/container_internal.go @@ -150,7 +150,8 @@ func (c *Container) syncContainer() error { // If runtime knows about the container, update its status in runtime // And then save back to disk if (c.state.State != ContainerStateUnknown) && - (c.state.State != ContainerStateConfigured) { + (c.state.State != ContainerStateConfigured) && + (c.state.State != ContainerStateExited) { oldState := c.state.State // TODO: optionally replace this with a stat for the exit file if err := c.runtime.ociRuntime.updateContainerStatus(c); err != nil { @@ -528,6 +529,8 @@ func (c *Container) init(ctx context.Context) error { logrus.Debugf("Created container %s in OCI runtime", c.ID()) + c.state.ExitCode = 0 + c.state.Exited = false c.state.State = ContainerStateCreated if err := c.save(); err != nil { @@ -537,11 +540,14 @@ func (c *Container) init(ctx context.Context) error { return c.completeNetworkSetup() } -// Reinitialize a container -// Deletes and recreates a container in the runtime -// Should only be done on ContainerStateStopped containers -func (c *Container) reinit(ctx context.Context) error { - logrus.Debugf("Recreating container %s in OCI runtime", c.ID()) +// Clean up a container in the OCI runtime. +// Deletes the container in the runtime, and resets its state to Exited. +// The container can be restarted cleanly after this. +func (c *Container) cleanupRuntime(ctx context.Context) error { + // If the container is not ContainerStateStopped, do nothing + if c.state.State != ContainerStateStopped { + return nil + } // If necessary, delete attach and ctl files if err := c.removeConmonFiles(); err != nil { @@ -552,19 +558,30 @@ func (c *Container) reinit(ctx context.Context) error { return err } - // Our state is now Configured, as we've removed ourself from - // the runtime - // Set and save now to make sure that, if the init() below fails - // we still have a valid state - c.state.State = ContainerStateConfigured - c.state.ExitCode = 0 - c.state.Exited = false + // Our state is now Exited, as we've removed ourself from + // the runtime. + c.state.State = ContainerStateExited if err := c.save(); err != nil { return err } logrus.Debugf("Successfully cleaned up container %s", c.ID()) + return nil +} + +// Reinitialize a container. +// Deletes and recreates a container in the runtime. +// Should only be done on ContainerStateStopped containers. +// Not necessary for ContainerStateExited - the container has already been +// removed from the runtime, so init() can proceed freely. +func (c *Container) reinit(ctx context.Context) error { + logrus.Debugf("Recreating container %s in OCI runtime", c.ID()) + + if err := c.cleanupRuntime(ctx); err != nil { + return err + } + // Initialize the container again return c.init(ctx) } @@ -592,7 +609,7 @@ func (c *Container) initAndStart(ctx context.Context) (err error) { } defer func() { if err != nil { - if err2 := c.cleanup(); err2 != nil { + if err2 := c.cleanup(ctx); err2 != nil { logrus.Errorf("error cleaning up container %s: %v", c.ID(), err2) } } @@ -603,28 +620,11 @@ func (c *Container) initAndStart(ctx context.Context) (err error) { if c.state.State == ContainerStateStopped { logrus.Debugf("Recreating container %s in OCI runtime", c.ID()) - // If necessary, delete attach and ctl files - if err := c.removeConmonFiles(); err != nil { - return err - } - - // Delete the container in the runtime - if err := c.runtime.ociRuntime.deleteContainer(c); err != nil { - return errors.Wrapf(err, "error removing container %s from runtime", c.ID()) - } - - // Our state is now Configured, as we've removed ourself from - // the runtime - // Set and save now to make sure that, if the init() below fails - // we still have a valid state - c.state.State = ContainerStateConfigured - if err := c.save(); err != nil { + if err := c.reinit(ctx); err != nil { return err } - } - - // If we are ContainerStateConfigured we need to init() - if c.state.State == ContainerStateConfigured { + } else if c.state.State == ContainerStateConfigured || + c.state.State == ContainerStateExited { if err := c.init(ctx); err != nil { return err } @@ -705,7 +705,7 @@ func (c *Container) restartWithTimeout(ctx context.Context, timeout uint) (err e } defer func() { if err != nil { - if err2 := c.cleanup(); err2 != nil { + if err2 := c.cleanup(ctx); err2 != nil { logrus.Errorf("error cleaning up container %s: %v", c.ID(), err2) } } @@ -716,8 +716,9 @@ func (c *Container) restartWithTimeout(ctx context.Context, timeout uint) (err e if err := c.reinit(ctx); err != nil { return err } - } else if c.state.State == ContainerStateConfigured { - // Initialize the container if it has never been initialized + } else if c.state.State == ContainerStateConfigured || + c.state.State == ContainerStateExited { + // Initialize the container if err := c.init(ctx); err != nil { return err } @@ -826,7 +827,7 @@ func (c *Container) cleanupStorage() error { } // Unmount the a container and free its resources -func (c *Container) cleanup() error { +func (c *Container) cleanup(ctx context.Context) error { var lastError error logrus.Debugf("Cleaning up container %s", c.ID()) @@ -845,6 +846,15 @@ func (c *Container) cleanup() error { } } + // Remove the container from the runtime, if necessary + if err := c.cleanupRuntime(ctx); err != nil { + if lastError != nil { + logrus.Errorf("Error removing container %s from OCI runtime: %v", c.ID(), err) + } else { + lastError = err + } + } + return lastError } |