Ansible YAML中的条件列表元素
我有一个在我们的服务器上部署docker容器中的Consor的剧本。我基本上是这样的:Ansible YAML中的条件列表元素,ansible,yaml,Ansible,Yaml,我有一个在我们的服务器上部署docker容器中的Consor的剧本。我基本上是这样的: - name: run consul hosts: all tasks: - name: consul | run consul servers and agents docker_container: name: consul network_mode: bridge published_ports: - "{{
- name: run consul
hosts: all
tasks:
- name: consul | run consul servers and agents
docker_container:
name: consul
network_mode: bridge
published_ports:
- "{{ docker_host_ip }}:8301:8301"
- "{% if consul_server is defined %}{{ docker_host_ip }}:8300:8300{% endif %}"
...
。。。除了最后一行不行。我只想在concur部署为服务器时公开端口8300,该服务器存储在每个主机的concur_服务器
变量中
如何有条件地将元素附加到YAML列表/数组?您可以使用数组concat:
- name: consul | run consul servers and agents
docker_container:
name: consul
network_mode: bridge
published_ports: "{{ [ docker_host_ip ~ ':8301:8301' ] + ([ docker_host_ip ~ ':8300:8300' ] if consul_server is defined else [])}}"
在示例代码中,如果定义了concur\u server
,则将{{docker\u host\u ip}}:8300:8300
添加到列表中。是您的朋友
输出(稍微修改以删除不相关项):
- set_fact:
myTrue : true
myFalse : false
myList :
- first
myAdd :
- second
- debug:
msg: "When TRUE: {{ myTrue |
ternary( myList | union( myAdd ), myList ) }}"
- debug:
msg: "When FALSE: {{ myFalse |
ternary( myList | union( myAdd ), myList ) }}"
TASK [test : debug]
"msg": "When TRUE: [u'first', u'second']"
TASK [test : debug]
"msg": "When FALSE: [u'first']"