本文整理匯總了Golang中github.com/hashicorp/nomad/nomad/structs.Node.Drain方法的典型用法代碼示例。如果您正苦於以下問題：Golang Node.Drain方法的具體用法？Golang Node.Drain怎麽用？Golang Node.Drain使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類github.com/hashicorp/nomad/nomad/structs.Node的用法示例。
在下文中一共展示了Node.Drain方法的2個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Golang代碼示例。
示例1: UpdateNodeDrain
// UpdateNodeDrain is used to update the drain of a node
func (s *StateStore) UpdateNodeDrain(index uint64, nodeID string, drain bool) error {
txn := s.db.Txn(true)
defer txn.Abort()
// Lookup the node
existing, err := txn.First("nodes", "id", nodeID)
if err != nil {
return fmt.Errorf("node lookup failed: %v", err)
}
if existing == nil {
return fmt.Errorf("node not found")
}
// Copy the existing node
existingNode := existing.(*structs.Node)
copyNode := new(structs.Node)
*copyNode = *existingNode
// Update the drain in the copy
copyNode.Drain = drain
copyNode.ModifyIndex = index
// Insert the node
if err := txn.Insert("nodes", copyNode); err != nil {
return fmt.Errorf("node update failed: %v", err)
}
if err := txn.Insert("index", &IndexEntry{"nodes", index}); err != nil {
return fmt.Errorf("index update failed: %v", err)
}
txn.Commit()
return nil
}示例2: UpsertNode
// UpsertNode is used to register a node or update a node definition
// This is assumed to be triggered by the client, so we retain the value
// of drain which is set by the scheduler.
func (s *StateStore) UpsertNode(index uint64, node *structs.Node) error {
txn := s.db.Txn(true)
defer txn.Abort()
// Check if the node already exists
existing, err := txn.First("nodes", "id", node.ID)
if err != nil {
return fmt.Errorf("node lookup failed: %v", err)
}
// Setup the indexes correctly
if existing != nil {
exist := existing.(*structs.Node)
node.CreateIndex = exist.CreateIndex
node.ModifyIndex = index
node.Drain = exist.Drain // Retain the drain mode
} else {
node.CreateIndex = index
node.ModifyIndex = index
}
// Insert the node
if err := txn.Insert("nodes", node); err != nil {
return fmt.Errorf("node insert failed: %v", err)
}
if err := txn.Insert("index", &IndexEntry{"nodes", index}); err != nil {
return fmt.Errorf("index update failed: %v", err)
}
txn.Commit()
return nil
}