I am trying to change the owner of a file using file module. I tried this piece of code:
---
- hosts: super_group
remote_user: ec2-user
tasks:
- name: Checking the user name
shell: /usr/bin/whoami
register: username
- name: Debugging the whoami username
debug: msg={{ username }}
- name: Changing the owner of a file
file: path=/home/ec2-user/test owner={{ username }}
Error:
TASK [Changing the owner of a file] ********************************************
fatal: [test]: FAILED! => {"changed": false, "failed": true, "gid": 0, "group": "root", "mode": "0644", "msg": "chown failed: failed to look up user {'stderr_lines': [], 'changed': True, 'end': '2017-07-10 01:49:11.495709', 'stdout': 'ec2-user', 'cmd': '/usr/bin/whoami', 'start': '2017-07-10 01:49:11.492286', 'delta': '0:00:00.003423', 'stderr': '', 'rc': 0, 'stdout_lines': ['ec2-user']}", "owner": "ec2-user", "path": "/home/ec2-user/test", "secontext": "unconfined_u:object_r:user_home_t:s0", "size": 0, "state": "file", "uid": 1000}
to retry, use: --limit #/home/ec2-user/ansible/test.retry
debug module is giving me this output:
TASK [Debugging the whoami username] *******************************************
ok: [test] => {
"msg": {
"changed": true,
"cmd": "/usr/bin/whoami",
"delta": "0:00:00.003423",
"end": "2017-07-10 01:49:11.495709",
"rc": 0,
"start": "2017-07-10 01:49:11.492286",
"stderr": "",
"stderr_lines": [],
"stdout": "ec2-user",
"stdout_lines": [
"ec2-user"
]
}
}
Note:
If I hardcode the value of username then it works fine:
- name: Changing the owner of a file
file: path=/home/ec2-user/test owner=ec2-user
Please let me know how to resolve this issue.
There is no issue. You want to use username.stdout, not username.
Please check the value you printed with the debug module and use reasoning.
Related
I'm trying to create an ansible playbook to check disk utilization of each users in the /home/ directory
---
- name: User Home Directory Stat
hosts: linux7
become: true
vars:
directory: /home/*
tasks:
- name: Check available user directory and disk utilization
ansible.builtin.command: "sudo du -sh {{ directory }} "
register: msg
- debug:
var: msg.stdout_lines
However, i get
FAILED! => {"changed": true, "cmd": ["sudo", "du", "-sh", "/home/*"], "delta": "0:00:00.018716", "end": "2022-09-29 10:44:06.375725", "msg": "non-zero return code", "rc": 1, "start": "2022-09-29 10:44:06.357009", "stderr": "du: cannot access ‘/home/*’: No such file or directory", "stderr_lines": ["du: cannot access ‘/home/*’: No such file or directory"], "stdout": "", "stdout_lines": []}
I have added to my playbook a small task that should change umask on my linux machine:
- name: set umask to 0022
shell: umask 0022
When running the playbook, I can see this task passes successfully:
changed: [myHostName] => {
"changed": true,
"cmd": "umask 0022",
"delta": "0:00:00.004660",
"end": "2020-08-04 16:28:44.153261",
"invocation": {
"module_args": {
"_raw_params": "umask 0022",
"_uses_shell": true,
"argv": null,
"chdir": null,
"creates": null,
"executable": null,
"removes": null,
"stdin": null,
"stdin_add_newline": true,
"strip_empty_ends": true,
"warn": true
}
},
"rc": 0,
"start": "2020-08-04 16:28:44.148601",
"stderr": "",
"stderr_lines": [],
"stdout": "",
"stdout_lines": []
}
but After the playbook finishes, I check the umask and see that it was not changed at all:
-bash-4.2$ umask
0044
I also put a debug in my playbook right after the task I showed above, and the debug also shows that the umask was not changed..
Tried also with
become: yes
But got the same result..
When I do the command on my Linux manually, it will work:
-bash-4.2$ umask 0022
-bash-4.2$ umask
0022
Q: After the playbook finishes, I check the umask and see that it was not changed at all.
A: This is correct. Ansible isn't really doing things through the shell i.e. the changes live in this one session only.
I'm trying to create a symlink and I'm not able to solve this error . Please suggest me a solution on how to solve this error
Code: Creating a symlink for /usr/local/bin/terraform-env/bin/* in folder /usr/local/bin
I tried with /usr/local/bin/ (with and without slash)
- name: Move tfenv file:
src: "/usr/local/bin/terraform-env/bin/{{ item.src }}"
dest: "/usr/local/bin/"
state: link
owner: root
group: root
mode: 755
force: yes
with_items:
- src: terraform
- src: tfenv
TASK [terraform : Move tfenv] **************************************************
task path: /opt/ansible/roles/terraform/tasks/main.yml:16
failed: [127.0.0.1] (item={'src': 'terraform'}) => {"changed": false, "gid": 0, "group": "root", "item": {"src": "terraform"}, "mode": "0755", "msg": "the directory /usr/local/bin/ is not empty, refusing to convert it", "owner": "root", "path": "/usr/local/bin/", "size": 4096, "state": "directory", "uid": 0}
failed: [127.0.0.1] (item={'src': 'tfenv'}) => {"changed": false, "gid": 0, "group": "root", "item": {"src": "tfenv"}, "mode": "0755", "msg": "the directory /usr/local/bin/ is not empty, refusing to convert it", "owner": "root", "path": "/usr/local/bin/", "size": 4096, "state": "directory", "uid": 0}
Using ansible 2.8.3
the directory /usr/local/bin/ is not empty, refusing to convert it
You are trying to create the symlink directly on the existing directory rather than creating an entry inside that dir to support the symlink. The following corrected task should get you going:
- name: Move tfenv file:
src: "/usr/local/bin/terraform-env/bin/{{ item.src }}"
dest: "/usr/local/bin/{{ item.src }}"
state: link
owner: root
group: root
mode: 755
force: yes
with_items:
- src: terraform
- src: tfenv
I need to check for a process on few remote hosts, if the process is running then exit without doing anything, if the process is not running then remove the existing package and install a different version.
I have tried the below ansible code, but I am not sure in ansible how to exit if the process is already running. Can someone please help here? Thanks in advance.
- hosts: all
become: yes
tasks:
- name: check if http is running
shell: "pgrep http"
register: running_processes
failed_when: running_processes.rc > 1
- debug:
var: running_processes
- block:
- debug:
msg: http is running. End of play.
- meta: end_host
when: running_processes.stdout_lines|length > 0
- debug:
msg: http is not running. Continue play.
- name: remove the old http package
yum:
name: http
state: absent
- name: install http
yum:
name: http.rpm
state: present
But I am getting below error while running this playbook.
fatal: [host1]: FAILED! => {"msg": "The conditional check 'running_processes.stdout_lines|length > 0' failed. The error was: error while evaluating conditional (running_processes.stdout_lines|length > 0): 'dict object' has no attribute 'stdout_lines'\n\nThe error appears to have been in 'http.yml': line 14, column 10, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n - block:\n - debug:\n ^ here\n"}
Output of running_processes
ok: [host1] => {
"running_processes": {
"changed": true,
"cmd": "pgrep http",
"delta": "0:00:00.025309",
"end": "2019-08-26 14:44:21.019275",
"failed": false,
"failed_when_result": false,
"msg": "non-zero return code",
"rc": 1,
"start": "2019-08-26 14:44:20.993966",
"stderr": "",
"stderr_lines": [],
"stdout": "",
"stdout_lines": []
}
}
I am not getting this error now, but - meta: end_host is throwing an error.
ERROR! invalid meta action requested: end_host
The error appears to have been in 'http.yml': line 20, column 10, but may
be elsewhere in the file depending on the exact syntax problem.
The offending line appears to be:
msg: http is running. End of play.
- meta: end_host
^ here
It is working as expected where the process is running. But it is skipping where the process is not running.
ok: [host1] => {
"running_processes": {
"changed": true,
"cmd": "pgrep http",
"delta": "0:00:00.019929",
"end": "2019-08-26 16:57:59.940856",
"failed": false,
"failed_when_result": false,
"rc": 0,
"start": "2019-08-26 16:57:59.920927",
"stderr": "",
"stderr_lines": [],
"stdout": "8743",
"stdout_lines": [
"8743"
]
}
}
ok: [host2] => {
"running_processes": {
"changed": true,
"cmd": "pgrep http",
"delta": "0:00:00.018915",
"end": "2019-08-26 16:57:59.338179",
"failed": false,
"failed_when_result": false,
"msg": "non-zero return code",
"rc": 1,
"start": "2019-08-26 16:57:59.319264",
"stderr": "",
"stderr_lines": [],
"stdout": "",
"stdout_lines": []
}
}
TASK [debug] ***********************************************************************************************************************************************************
ok: [host1] => {
"msg": "http is running. End of play."
}
skipping: [host2]
ERROR! invalid meta action requested: end_host
The error appears to have been in 'http.yml': line 19, column 10, but may
be elsewhere in the file depending on the exact syntax problem.
The offending line appears to be:
msg: http is running. End of play.
- meta: end_host
^ here
(ansible 2.8.3)
Use pgrep to avoid this, e.g.
- name: check if httpd is running
shell: "pgrep httpd"
register: running_processes
failed_when: running_processes.rc > 1
- block:
- debug:
msg: httpd is running. End of play.
- meta: end_play
when: running_processes.stdout_lines|length > 0
- debug:
msg: httpd is not running. Continue play.
Notes
Equivalent condition is
when: running_processes.rc == 0
- meta: end_play terminates all hosts. Use - meta: end_host to end current host only.
Below is the example of running_processes when there is no match
ok: [localhost] => {
"running_processes": {
"changed": true,
"cmd": "pgrep httpd",
"delta": "0:00:00.013312",
"end": "2019-08-26 20:40:59.908060",
"failed": false,
"failed_when_result": false,
"msg": "non-zero return code",
"rc": 1,
"start": "2019-08-26 20:40:59.894748",
"stderr": "",
"stderr_lines": [],
"stdout": "",
"stdout_lines": []
}
}
I have this ansible playbook:
---
- hosts: all
gather_facts: False
become: yes
become_user: myins
become_method: sudo
tasks:
- name: test someting
command: "cd /db2/myins"
- name: relocate it
command: "db2relocatedb -f /db2/myins/relocate.cfg"
...
if I run the command by itself it works and if I use cat /db2/myins/relocate.cfg instead of db2relocatedb -f it works too.
If I run it like this I get:
The full traceback is:
WARNING: The below traceback may *not* be related to the actual failure.
File "/tmp/ansible_command_payload_HGHkvR/ansible_command_payload.zip/ansible/module_utils/basic.py", line 2561, in run_command
cmd = subprocess.Popen(args, **kwargs)
File "/usr/lib64/python2.7/subprocess.py", line 711, in __init__
errread, errwrite)
File "/usr/lib64/python2.7/subprocess.py", line 1327, in _execute_child
raise child_exception
fatal: [mounttest]: FAILED! => {
"changed": false,
"cmd": "db2relocatedb -f /db2/myins/relocate.cfg",
"invocation": {
"module_args": {
"_raw_params": "db2relocatedb -f /db2/myins/relocate.cfg",
"_uses_shell": false,
"argv": null,
"chdir": null,
"creates": null,
"executable": null,
"removes": null,
"stdin": null,
"stdin_add_newline": true,
"strip_empty_ends": true,
"warn": true
}
},
"msg": "[Errno 2] No such file or directory",
"rc": 2
}
Why can I cat the file but not use it?
Thanks,
Arengin
the problem is inside relocate.cfg, check all Pathes make sure they are full qualified, make sure no escape character is somewhere