我正在构建一个角色，我可能希望将其包含为多个剧本的依赖项。我要支持:
clusterA.yml
- hosts:
- clusterA
roles:
- clusterA
对比:
clusterB.yml
- hosts:
- clusterB
roles:
- clusterB
在 clusterA 或 clusterB meta/main.yml 中，我可能有:
dependencies:
- { role: commondependency }
好的，在设置 commondependency 时，我想通过 ssh-keyscan 集群中的其他主机。该簇可以是 clusterA，也可以是 clusterB，也可以是 clusterY。我可以找到很多这样的例子:
- name: Key Scan Cluster
shell: ( ssh-keyscan {{item}} && cat /opt/commondependency/.ssh/known_hosts | sort | uniq ) > /opt/commondependency/.ssh/known_hosts
with_items: hosts['clusterA']
但我真正想要的是:
- name: Key Scan Cluster
shell: ( ssh-keyscan {{item}} && cat /opt/commondependency/.ssh/known_hosts | sort | uniq ) > /opt/commondependency/.ssh/known_hosts
with_items: the hosts I am running a playbook on right now
最佳答案
开始吧，http://docs.ansible.com/playbooks_variables.html底部提到的方式:
- name: Key Scan Cluster
shell: ( ssh-keyscan {{item}} && cat /opt/commondependency /.ssh/known_hosts | sort | uniq ) > /opt/commondependency/.ssh/known_hosts
with_items: "{{ansible_play_hosts}}"
关于Ansible:当前剧本角色中主机上的 with_items，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/30087080/