如何使用ansibleR恢复RDS aurora快照

时间:2018-11-30 10:14:06

标签: ansible amazon-rds-aurora

我正在尝试使用ansible从快照创建Aurora数据库的克隆。我正在使用rds_snapshot_facts和rds_instance模块,因为rds模块不支持Aurora。这是我的剧本(删除了区域/配置文件)。当我运行它失败

  

无法从数据库快照还原数据库实例:调用RestoreDBInstanceFromDBSnapshot操作时发生错误(DBSnapshotNotFound):未找到DBSnapshot:快照ID

任何人都可以使用rds_instance模块设法恢复这样的快照,因为它的状态是预览,所以我不确定它是否可以正常工作。

---                                   
- hosts: localhost              
  connection: local                                             
  tasks:                                                          
    - name: Get rds snapshots            
      rds_snapshot_facts:                                                    
          db_cluster_identifier: "{{rds_live_instance}}"
      register: rds_snapshot                          
    - name: Create dev db                                   
      rds_instance:                             
          wait: yes                       
          vpc_security_group_ids:                 
            - "{{rds_security_group}}"    
          storage_encrypted: yes
          publicly_accessible: no      
          engine: aurora-mysql
          db_subnet_group_name: default
          id: "dev-{{branch}}"
          cluster_id: "dev-{{branch}}-cluster"
          creation_source: snapshot                                
          availability_zone: eu-west-1a
          auto_minor_version_upgrade: yes        
          allow_major_version_upgrade: no
          db_snapshot_identifier: "{{item.db_cluster_snapshot_identifier}}"
          snapshot_identifier: "{{item.db_cluster_snapshot_arn}}"
      with_items:                            
        - "{{rds_snapshot.cluster_snapshots | last }}"  

2 个答案:

答案 0 :(得分:1)

在Ansible中,我使用了shell模块+ AWS CLI 从快照还原群集

- name: Restore Aurora DB cluster from snapshot
  shell: | 
    aws rds restore-db-cluster-from-snapshot \
      --db-cluster-identifier {{ aurora_cluster_name }} \
      --snapshot-identifier {{ db_cluster_snapshot_arn }} \
      --db-subnet-group-name {{ subnet_group_name }} \
      --engine aurora-postgresql \
      --region {{ region }}

空集群已创建。然后使用rds_instance模块将实例添加到集群中

- name: Add Aurora DB instance to cluster
  rds_instance:
    region: "{{ region }}"
    engine: aurora-postgresql
    db_instance_identifier: "{{ aurora_cluster_name }}-instance"
    instance_type: db.t3.medium
    cluster_id: "{{ aurora_cluster_name }}"
    db_subnet_group_name: "{{ subnet_group_name }}"
    wait: yes

别忘了幂等性,请先检查集群是否已存在。

答案 1 :(得分:0)

不熟悉Ansible,但是看着您的错误,您似乎正在调用RestoreDBInstance* API,该API无法与基于集群的引擎(如Aurora)一起使用。您应该调用RestoreDBCluster*版本,这将为您创建一个新的群集。然后,您需要使用CreateDbInstance Api将实例添加到集群。

我将留给您了解如何在Ansible中进行连接。希望这会有所帮助!