Ansible：读取远程文件

Question

I generate files with ansible on remote host and after this generation, I would like to read theses files in another task.

I don't find any module to read remote file with ansible (lookup seems only on local host).

Do you know a module like this?

Thanks

EDIT:

Here is my use case:

I generate ssh keys and I add it to github. These keys are setting by an object in var files so I loop like this to generate it:

    tasks:
  - name: Create ssh key
    user:
      name: "{{sshConfigFile.user}}"
      generate_ssh_key: yes
      ssh_key_file: ".ssh/{{item.value.file}}"
      state: present
    with_dict: "{{sshConfiguration}}"

It works very fine but how read these keys to send it to github via the API?

Answer 1

Either run with the --diff flag (outputs a diff when the destination file changes)..

ansible-playbook --diff server.yaml

or slurp it up..

- name: Slurp hosts file
  slurp:
    src: /etc/hosts
  register: slurpfile

- debug: msg="{{ slurpfile['content'] | b64decode }}"

Answer 2

Note that when this question was asked, the following solution was acceptable. Later versions of Ansible may provide a better solution to solve this problem.

As you said, all lookups are on localhost. But all of them can be done on remote by using shell and register . Can you tell what exactly you are trying to do? just an example.

  - shell: cat "{{remote_file}}"
    register: data

  - shell: ......
    with_xxxx:

Answer 3

You can try the 'fetch' module, which will retrieve the key file to a destination path on localhost :

fetch: 
  src: ".ssh/{{item.value.file}}" 
  dest:"/tmp/ssh_keys/{{item.value.file}}"
  flat: yes
with_dict: "{{sshConfiguration}}" 

Answer 4

You can register the contents of the file in a variable using the register command. Here is what I would suggest,

- name: get contents of file
  command: cat /path/to/file
  register: filename
  become: true # use case specific option

- name: viewing the contents
  debug:
    msg: "{{filename.stdout}}"

This will display the contents of the file.

Answer 5

By using command module you can read or use that file in another task in remote node.

like

-command: cp /tmp/xxx/example.sh /usr/local/yyy