问题
I have several global environment variables set in /etc/environment on my target machine that I need to present when running some Ansible tasks. E.g.
MY_VAR=Some global variable
The value of these global variables are not known to Ansible so I can't use the environment functionality.
Example task:
- shell: echo MY_VAR is $MY_VAR
register: my_var
- debug: msg={{ my_var.stdout }}
The output I get is MY_VAR is where I would like it to be MY_VAR is Some global variable. I understand that this is happening because non-interactive Bash shells (which Ansible uses) don't load the environment from /etc/environment, but is there a way to execute my command in the context of that environment?
Note: I don't actually want to retrieve the value of the environment variable (as shown above), I just want it to be present in the context that I execute the shell task in.
回答1:
Remote environment variables are available via facts using the the ansible_env variable.
This prints out all variables of the user Ansible logs into a remote host with:
- debug: var=ansible_env
If global environment variables not available to the Ansible user, they can be sourced in a task before running your command:
- shell: . /etc/environment && commandhere
来源：https://stackoverflow.com/questions/40350359/loading-global-environment-variables-in-an-ansible-task