func ensureContainersStarted(p DockerProvisioner, w io.Writer, relaunch bool, names []string, nodes ...cluster.Node) error {
if w == nil {
w = ioutil.Discard
}
var err error
if len(names) == 0 {
names, err = nodecontainer.AllNodeContainersNames()
if err != nil {
return err
}
}
if len(nodes) == 0 {
nodes, err = p.Cluster().UnfilteredNodes()
if err != nil {
return err
}
}
errChan := make(chan error, len(nodes)*len(names))
wg := sync.WaitGroup{}
log.Debugf("[node containers] recreating %d containers", len(nodes)*len(names))
recreateContainer := func(node *cluster.Node, confName string) {
defer wg.Done()
pool := node.Metadata["pool"]
containerConfig, confErr := nodecontainer.LoadNodeContainer(pool, confName)
if confErr != nil {
errChan <- confErr
return
}
if !containerConfig.Valid() {
return
}
log.Debugf("[node containers] recreating container %q in %s [%s]", confName, node.Address, pool)
fmt.Fprintf(w, "relaunching node container %q in the node %s [%s]\n", confName, node.Address, pool)
confErr = create(containerConfig, node, pool, p, relaunch)
if confErr != nil {
confErr = errors.Wrapf(confErr, "[node containers] failed to create container in %s [%s]", node.Address, pool)
errChan <- log.WrapError(confErr)
}
}
for i := range nodes {
wg.Add(1)
go func(node *cluster.Node) {
defer wg.Done()
for j := range names {
wg.Add(1)
go recreateContainer(node, names[j])
}
}(&nodes[i])
}
wg.Wait()
close(errChan)
var allErrors []error
for err = range errChan {
allErrors = append(allErrors, err)
}
if len(allErrors) == 0 {
return nil
}
return tsuruErrors.NewMultiError(allErrors...)
}
func (p *swarmProvisioner) ensureNodeContainersCreated() error {
names, err := nodecontainer.AllNodeContainersNames()
if err != nil {
return errors.WithStack(err)
}
for _, n := range names {
poolMap, err := nodecontainer.LoadNodeContainersForPools(n)
if err != nil {
return errors.WithStack(err)
}
for pool := range poolMap {
err = p.UpgradeNodeContainer(n, pool, ioutil.Discard)
if err != nil {
return err
}
}
}
return nil
}
