lxd connection: become/become_user ignored

[Gaétan QUENTIN]

##### Problem

using lxd connection to provision lxd containers: become directive is ignored

```

```

##### ISSUE TYPE

- Bug Report

##### COMPONENT NAME

command with become directive

##### ANSIBLE VERSION

```

ansible 2.9.7

  config file = /home/myhome/.ansible/ansible.cfg

  configured module search path = [u'/home/myhome/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules']

  ansible python module location = /usr/lib/python2.7/dist-packages/ansible

  executable location = /usr/bin/ansible

  python version = 2.7.17 (default, Nov  7 2019, 10:07:09) [GCC 9.2.1 20191008]'

```

##### CONFIGURATION

My inventory contains vms and containers: most of them are acceded with ssh connection, and some of containers with lxd connection.

The default config (group_vars:all.yml) is ssh based, and is overriden by lxd config on host_vars and host inventory declarations.

```

ANSIBLE_CONFIG=/home/myhome/.ansible/ansible.cfg:

[defaults]

roles_path=/home/myhome/Work/repositories/git/cortex/Ansible/roles

yaml_valid_extensions = .yaml, .yml, .inventory

container name: 

| lxd-postgreSQL-v12    | RUNNING | 172.20.10.51 (eth0)  |      | CONTAINER | 0         |

inventory:

all:

      children:

        databases_postgres:

          hosts:

            lxd-postgreSQL-v12:

group_vars:

ansible_connection: ssh

ansible_port: 37058

ansible_user: exploitsp

ansible_become: true

host_vars:

ansible_become: false

ansible_connection: lxd

playbook:

---

- hosts: databases

  name: "PostgreSQL"

  roles:

    - app-postgres-install

 

role/task:

  - name: postgres initdb

    command: /usr/pgsql-{{ postgres.version }}/bin/pg_ctl -D {{ postgres.database_dir }}/{{ postgres.version }}/data initdb

    args:

      creates: "{{ postgres.database_dir }}/{{ postgres.version }}/data/base"

    become: yes

    become_user: postgres

    become_method: sudo

```

##### OS / ENVIRONMENT

```

controller: ubuntu 19.10

target: lxd container centos 8 :Release: 8.1.1911

lxd: 4.0.1

```

##### STEPS TO REPRODUCE

```

ANSIBLE_CONFIG=/home/myhome/.ansible/ansible.cfg

ansible-playbook -i inventories/lab/datbases-postgres.inventory -l lxd-postgreSQL-v12 playbooks/app_postgreSQL_deploy.yml --ask-vault -vvv

```

##### EXPECTED RESULTS

the task should become 'postgres' user become launching command

##### ACTUAL RESULTS

become is ignored, it stays as root

<!--- Paste verbatim command output between quotes -->

```

TASK [app-postgres-install : postgres initdb] ********************************************************************************************************************************************************************************************************************************************************

task path: /home/myhome/Work/repositories/git/cortex/Ansible/roles/app-postgres-install/tasks/postgres-initdb.yml:10

<lxd-postgreSQL-v12> ESTABLISH LXD CONNECTION FOR USER: root

<lxd-postgreSQL-v12> EXEC /bin/sh -c 'echo ~root && sleep 0'

<lxd-postgreSQL-v12> EXEC /bin/sh -c '( umask 77 && mkdir -p "` echo /root/.ansible/tmp `"&& mkdir /root/.ansible/tmp/ansible-tmp-1588501978.05-11748-69923050910000 && echo ansible-tmp-1588501978.05-11748-69923050910000="` echo /root/.ansible/tmp/ansible-tmp-1588501978.05-11748-69923050910000 `" ) && sleep 0'

Using module file /usr/lib/python2.7/dist-packages/ansible/modules/commands/command.py

<lxd-postgreSQL-v12> PUT /home/myhome/.ansible/tmp/ansible-local-9472muw_Ra/tmprand9R TO /root/.ansible/tmp/ansible-tmp-1588501978.05-11748-69923050910000/AnsiballZ_command.py

<lxd-postgreSQL-v12> EXEC /bin/sh -c 'chmod u+x /root/.ansible/tmp/ansible-tmp-1588501978.05-11748-69923050910000/ /root/.ansible/tmp/ansible-tmp-1588501978.05-11748-69923050910000/AnsiballZ_command.py && sleep 0'

<lxd-postgreSQL-v12> EXEC /bin/sh -c '/usr/bin/python3 /root/.ansible/tmp/ansible-tmp-1588501978.05-11748-69923050910000/AnsiballZ_command.py && sleep 0'

<lxd-postgreSQL-v12> EXEC /bin/sh -c 'rm -f -r /root/.ansible/tmp/ansible-tmp-1588501978.05-11748-69923050910000/ > /dev/null 2>&1 && sleep 0'

fatal: [lxd-postgreSQL-v12]: FAILED! => {

    "changed": true, 

    "cmd": [

        "/usr/pgsql-12/bin/pg_ctl", 

        "-D", 

        "/app/PSQL/data/pgsql/12/data", 

        "initdb"

    ], 

    "delta": "0:00:00.001490", 

    "end": "2020-05-03 10:32:58.431009", 

    "invocation": {

        "module_args": {

            "_raw_params": "/usr/pgsql-12/bin/pg_ctl -D /app/PSQL/data/pgsql/12/data initdb", 

            "_uses_shell": false, 

            "argv": null, 

            "chdir": null, 

            "creates": "/app/PSQL/data/pgsql/12/data/base", 

            "executable": null, 

            "removes": null, 

            "stdin": null, 

            "stdin_add_newline": true, 

            "strip_empty_ends": true, 

            "warn": true

        }

    }, 

    "msg": "non-zero return code", 

    "rc": 1, 

    "start": "2020-05-03 10:32:58.429519", 

    "stderr": "pg_ctl: cannot be run as root\nPlease log in (using, e.g., \"su\") as the (unprivileged) user that will\nown the server process.", 

    "stderr_lines": [

        "pg_ctl: cannot be run as root", 

        "Please log in (using, e.g., \"su\") as the (unprivileged) user that will", 

        "own the server process."

    ], 

    "stdout": "", 

    "stdout_lines": []

}

```