diff options
Diffstat (limited to 'libpod/pod.go')
| -rw-r--r-- | libpod/pod.go | 43 |
1 files changed, 29 insertions, 14 deletions
diff --git a/libpod/pod.go b/libpod/pod.go index 7d9e2c81b..e57782201 100644 --- a/libpod/pod.go +++ b/libpod/pod.go @@ -2,6 +2,7 @@ package libpod import ( "path/filepath" + "strings" "github.com/containers/storage" "github.com/docker/docker/pkg/stringid" @@ -93,16 +94,6 @@ func (p *Pod) Start() (map[string]error, error) { return nil, err } - // We need to lock all the containers - for _, ctr := range allCtrs { - ctr.lock.Lock() - defer ctr.lock.Unlock() - - if err := ctr.syncContainer(); err != nil { - return nil, err - } - } - // Build a dependency graph of containers in the pod graph, err := buildContainerGraph(allCtrs) if err != nil { @@ -165,10 +156,32 @@ func startNode(node *containerNode, setError bool, ctrErrors map[string]error, c // Going to start the container, mark us as visited ctrsVisited[node.id] = true - // TODO: Maybe have a checkDependenciesRunningLocked here? - // Graph traversal should ensure our deps have been started, but some - // might have stopped since? - // Potentially will hurt our perf, though + // Lock before we start + node.container.lock.Lock() + + // Check if dependencies are running + // Graph traversal means we should have started them + // But they could have died before we got here + depsStopped, err := node.container.checkDependenciesRunning() + if err != nil { + node.container.lock.Unlock() + + ctrErrors[node.id] = err + for _, successor := range node.dependedOn { + startNode(successor, true, ctrErrors, ctrsVisited) + } + return + } else if len(depsStopped) > 0 { + node.container.lock.Unlock() + + // Our dependencies are not running + depsList := strings.Join(depsStopped, ",") + ctrErrors[node.id] = errors.Wrapf(ErrCtrStateInvalid, "the following dependencies of container %s are not running: %s", node.id, depsList) + for _, successor := range node.dependedOn { + startNode(successor, true, ctrErrors, ctrsVisited) + } + return + } // Start the container (only if it is not running) ctrErrored := false @@ -179,6 +192,8 @@ func startNode(node *containerNode, setError bool, ctrErrors map[string]error, c } } + node.container.lock.Unlock() + // Recurse to anyone who depends on us and start them for _, successor := range node.dependedOn { startNode(successor, ctrErrored, ctrErrors, ctrsVisited) |