我有一个主机文件:
[cluster_be1]
10.10.10.10 be1_dns=c-be1.a.b.c.d
我希望能够填充/etc/hosts(附加在顶部)
10.10.10.10 c-be1.a.b.c.d
我尝试过:
- name: build hosts file
lineinfile: dest=/etc/hosts regexp='.*{{ item }}$' line="{{ hostvars[groups['cluster_be1'][0]].be1_ip }}" state=present
when: "{{ hostvars[groups['cluster_be1'][0]] }}" is defined
with_items: play_hosts
但出现错误:
The error appears to have been in '/home/ec2-user/ANSIBLE/clusterOps/roles/cluster-be1/defaults/main.yml': line 36, column 59, but may
be elsewhere in the file depending on the exact syntax problem.
The offending line appears to be:
lineinfile: dest=/etc/hosts regexp='.*{{ item }}$' line="{{ hostvars[groups['chef_be1_cluster'][0]].be1_ip }}" state=present
when: "{{ hostvars[groups['cluster_be1'][0]] }}" is defined
^ here
We could be wrong, but this one looks like it might be an issue with
missing quotes. Always quote template expression brackets when they
start a value. For instance:
with_items:
- {{ foo }}
Should be written as:
with_items:
- "{{ foo }}"
回答(在mhutter的帮助下)
- name: build hosts file
lineinfile: dest=/etc/hosts regexp={{ hostvars[groups['cluster_be1'][0]].be1_ip }} line="{{ hostvars[groups['cluster_be1'][0]].be1_ip }} {{ hostvars[groups['cluster_be1'][0]].be1_dns }}" state=present
when: hostvars[groups['cluster_be1'][0]] is defined
with_items: "{{ play_hosts }}"
文件“主机”:
[cluster_be1]
10.10.10.10 be1_dns=chef-be1-tnp.a.b.c.d be1_ip=10.10.10.10
最佳答案
Ansible 与何时必须使用 jinja 语法以及何时不使用有点不一致。我认为正确的标记应该是:
- lineinfile:
dest: /tmp/hosts
line: "{{ hostvars[item].inventory_hostname }} {{ hostvars[item].be1_dns }}"
state: present
loop: "{{ play_hosts }}"
引用文献:
关于ansible - 使用 Ansible 在/etc/hosts 中添加一行“<主机的 IP 地址> <主机的 FQDN>，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/52312358/