remote tmp directory not set for ansible script execution

问题

I need to install binary on remote servers. Following are the list of tasks that i am performing.

Copy/scp binary to remote server
Run the installer in silent mode

Step #1 is copying binaries to /tmp, on remote hosts /tmp has very less space and scp is failing once the /tmp is full. I understood that by default ansible scripts/files will be copied to /tmp directory, once the activity is done it will be removed. Since /tmp is very low i need to use user directory to copy the binaries.

Below is ansible.cfg:

remote_user = testaccount
host_key_checking = False
scp_if_ssh=True
remote_tmp = $HOME/.ansible/tmp

Below is the playbook:

- name: deploy binaries
  hosts: test
  strategy: free
  become_method: 'sudo'
  tasks:
    - name: transfer
      copy: src=./files/weblogic.jar dest=$HOME mode=0777
      register: transfer
    - debug: var=transfer.stdout

playbook execution:

ansible-playbook --inventory="hosts" --ask-pass --ask-become-pass --extra-vars="ansible_ssh_user=<unixaccount>" copybinaries.yml

Even with above config the binaries are not copied to user home, I have make sure to have $HOME/.ansible/tmp directory and even hard coded like /home/testaccount/.ansbile/tmp.

Any other configs needs to be overridden in ansible.cfg?

回答1:

Although you still have not included a coherent MCVE, I guess:

either you are running the task with become-an-unprivileged-user option;
or your inventory file, configuration file, the execution call, and the playbook contain unnecessary and contradictory settings making Ansible run in a more or less nondeterministic way.

Ansible uses the system temp directory for tasks being run as a different user. This line determines this.

You can only specify /tmp (default) or a subdirectory of /var/tmp for such tasks (with remote_tmp). See the comment in the Ansible code:

# When system is specified we have to create this in a directory where
# other users can read and access the temp directory.  This is because
# we use system to create tmp dirs for unprivileged users who are
# sudo'ing to a second unprivileged user.  The only dirctories where
# that is standard are the tmp dirs, /tmp and /var/tmp.  So we only
# allow one of those two locations if system=True.  However, users
# might want to have some say over which of /tmp or /var/tmp is used
# (because /tmp may be a tmpfs and want to conserve RAM or persist the
# tmp files beyond a reboot.  So we check if the user set REMOTE_TMP
# to somewhere in or below /var/tmp and if so use /var/tmp.  If
# anything else we use /tmp (because /tmp is specified by POSIX nad
# /var/tmp is not).

来源：https://stackoverflow.com/questions/42011478/remote-tmp-directory-not-set-for-ansible-script-execution

标签

ansible