I am trying to set a default value of 1 replicas for pod deployment but also I would like to have the option to change the value by using --extra-vars="pod_replicas=2". I have tried the following but it doesn't work for me.
vars:
- pod_replicas: 1
spec:
replicas: "{{ pod_replicas }}"
ERROR:
TASK [Create a deployment]
fatal: [localhost]: FAILED! => {"changed": false, "error": 422, "msg": "Failed to patch object: b'{\"kind\":\"Status\",\"apiVersion\":\"v1\",\"metadata\":{},\"status\":\"Failure\",\"m essage\":\" \\\\\"\\\\\" is invalid: patch: Invalid value: \\\\\"{\\\\\\\\\\\\\"apiVersion\\\\\\\\\\\\\":\\\\\\\\\\\\\"apps/v1\\\\\\\\\\\\\",\\\\\\\\\\\\\"kind\\\\\\\\\\\\\":\\\\\\\\\ \\\\"Deployment\\\\\\\\\\\\\",\\\\\\\\\\\\\"metadata\\\\\\\\\\\\\":{\\\\\\\\\\\\\"annotations\\\\\\\\\\\\\":{\\\\\\\\\\\\\"deployment.kubernetes.io/revision\\\\\\\\\\\\\":\\\\\\\\\\\\ \"1\\\\\\\\\\\\\"},\\\\\\\\\\\\\
(...)
\\"2022-02-14T12:13:38Z\\\\\\\\\\\\\",\\\\\\\\\\\\\"lastTransitionTime\\\\\\\\\\\\\":\\\\\\\\\\\\\"2022-02-14T12:13:33Z\\\\\\\\\\\\\",\\\\\\\\\\\\\"reason\\\\\\\\\\\\\":\\\\\\\\\\ \\\"NewReplicaSetAvailable\\\\\\\\\\\\\",\\\\\\\\\\\\\"message\\\\\\\\\\\\\":\\\\\\\\\\\\\"ReplicaSet \\\\\\\\\\\\\\\\\\\\\\\\\\\\\"ovms-deployment-57c9bbdfb8\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\" has successfully progressed.\\\\\\\\\\\\\"},{\\\\\\\\\\\\\"type\\\\\\\\\\\\\":\\\\\\\\\\\\\"Available\\\\\\\\\\\\\",\\\\\\\\\\\\\"status\\\\\\\\\\\\\":\\\\\\\\\\\\\"True\\\\\\\\ \\\\\",\\\\\\\\\\\\\"lastUpdateTime\\\\\\\\\\\\\":\\\\\\\\\\\\\"2022-02-14T14:18:33Z\\\\\\\\\\\\\",\\\\\\\\\\\\\"lastTransitionTime\\\\\\\\\\\\\":\\\\\\\\\\\\\"2022-02-14T14:18:33Z\\\ \\\\\\\\\\",\\\\\\\\\\\\\"reason\\\\\\\\\\\\\":\\\\\\\\\\\\\"MinimumReplicasAvailable\\\\\\\\\\\\\",\\\\\\\\\\\\\"message\\\\\\\\\\\\\":\\\\\\\\\\\\\"Deployment has minimum availabili ty.\\\\\\\\\\\\\"}]}}\\\\\": v1.Deployment.Spec: v1.DeploymentSpec.Replicas: readUint32: unexpected character: \\\\ufffd, error found in #10 byte of ...|eplicas\\\\\":\\\\\"1\\\\\",\\ \\\"revisi|..., bigger context ...|\\\\\"spec\\\\\":{\\\\\"progressDeadlineSeconds\\\\\":600,\\\\\"replicas\\\\\":\\\\\"1\\\\\",\\\\\"revisionHistoryLimit\\\\\":10,\\\\\"selector\\\\\ ":{\\\\\"matchLab|...\",\"field\":\"patch\"}]},\"code\":422}\\n'", "reason": "Unprocessable Entity", "status": 422}
Any idea how I can fix this?? Thank you!
Regarding your question
How can I use --extra-vars in Ansible playbooks?
you may have a look into Understanding variable precedence, Using -e extra variables at the command line and the following small test setup
---
- hosts: localhost
become: false
gather_facts: false
vars:
REPLICAS: 1
tasks:
- name: Show value
debug:
msg: "{{ REPLICAS }} in {{ REPLICAS | type_debug }}"
which will for a run with
ansible-playbook vars.yml
result into an output of
TASK [Show value] ******
ok: [localhost] =>
msg: 1 in int
and for a run with
ansible-playbook --extra-vars="REPLICAS=2" vars.yml
into an output of
TASK [Show value] ******
ok: [localhost] =>
msg: 2 in unicode
Because of the error message
v1.Deployment.Spec: v1.DeploymentSpec.Replicas: readUint32: unexpected character: \\\\ufffd, error found in #10 byte of ...|eplicas\\\\\":\\\\\"1\\\\\"
I've introduced the type_debug filter. Maybe it will be necessary to cast the data type to integer.
- name: Show value
debug:
msg: "{{ REPLICAS }} in {{ REPLICAS | int | type_debug }}"
Further Occurences
When I've been tying numeric values from a variable file, they've been resolved as string not numbers
I have found a solution. Using a json object as an argumet seems to work:
ansible-playbook --extra-vars '{ "pod_replicas":2 }' <playbook>.yaml
Related
I have task to read data from csv file and push result to templates and copy those templates to different servers. however, i am getting error while writing to template. below are details -
main.yml
- name: Print return information from the previous task
vars:
test_csv: "{{ lookup('file', '/u00/ansible/Playbooks/files/newrelic_test.csv', wantlist=True) }}"
ansible.builtin.debug:
var: test_csv
- name: copy template
template:
src: /u00/ansible/Playbooks/files/infra-config.yml_template
dest: /u00/app/monitor/infra-config.yml
with_items: test_csv
notify: confirm copy done
- name: Start the New Relic Service
ansible.builtin.systemd:
name: infra.service
state: started
become: yes
become_user: root
infra-config.yml_template -
custom_attributes:
application : {{ item.Application }}
env : {{ item.env }}
datacenter : {{ item.Datacenter }}
log:
file: /u00/app/monitor/infra.log
csv file content
Application,Host,env,Datacenter
Microsoft,testserver1,TEST,DC1
Apple,testserver2,TEST,DC2
error -
> TASK [config-update : copy template]
> ******************************************* [0;31mAn exception occurred during task execution. To see the full traceback, use -vvv.
> The error was: ansible.errors.AnsibleUndefinedVariable:
> 'ansible.utils.unsafe_proxy.AnsibleUnsafeText object' has no attribute
> 'db_name'[0m [0;31mfailed: [testserver1]
> (item=test_csv) => {"ansible_loop_var": "item", "changed": false,
> "item": "test_csv", "msg": "AnsibleUndefinedVariable:
> 'ansible.utils.unsafe_proxy.AnsibleUnsafeText object' has no attribute
> 'db_name'"}
Expectation is to read csv file and use variables in template in different servers.
testserver1 -
> custom_attributes: application : Microsoft env : Test datacenter : DC1
> log: file: /u00/app/monitor/infra.log
testserver2 -
> custom_attributes: application : Apple env : Test datacenter : DC1
> log: file: /u00/app/monitor/infra.log
There are few things to fix in your playbook. First, you are defining your test_csv variable inside a task and it cannot be accessible by other tasks. You can use register instead. However, the first task returns a list but with one string like this "test_csv": ["Application,Host,env,Datacenter\nMicrosoft,testserver1,TEST,DC1 \nApple,testserver2,TEST,DC2"] which only results one item in the test_csv list.
You can achieve this by using read_csv module as well. Below I demonstrate how:
Note that I have added a condition using inventory_hostname on the copy template task since you might want to target each csv line according to its hostname. You can modify this according to your needs.
Csv file content:
Application,Host,env,Datacenter
Microsoft,localhost,TEST,DC1
Apple,testserver2,TEST,DC2
Example of playbook for testing:
- name: Check status
hosts: localhost
gather_facts: no
tasks:
- name: read csv file and return a list
read_csv:
path: test.csv
register: applications
- name: Ouput applications from previous task
debug:
msg: "{{ item.Application }}"
loop: "{{ applications.list }}"
- name: copy template
template:
src: src.yml_template ##I would recommendr to use .j2 jinja template instead.
dest: dest.yml
loop: "{{ applications.list }}"
when: inventory_hostname == item.Host
src.yml_template content:
custom_attributes:
application : {{ item.Application }}
env : {{ item.env }}
datacenter : {{ item.Datacenter }}
log:
file: /u00/app/monitor/infra.log
Gives in dest.yml:
custom_attributes:
application : Microsoft
env : TEST
datacenter : DC1
log:
file: /u00/app/monitor/infra.log
Cli output:
PLAY [Check status] **********************************************************************************************************************************************************
TASK [read csv file and return a list] ***************************************************************************************************************************************
ok: [localhost]
TASK [Ouput applications from previous task] *********************************************************************************************************************************
ok: [localhost] => (item={'Application': 'Microsoft', 'Host': 'localhost', 'env': 'TEST', 'Datacenter': 'DC1 '}) => {
"msg": "Microsoft"
}
ok: [localhost] => (item={'Application': 'Apple', 'Host': 'testserver2', 'env': 'TEST', 'Datacenter': 'DC2'}) => {
"msg": "Apple"
}
TASK [copy template] *********************************************************************************************************************************************************
changed: [localhost] => (item={'Application': 'Microsoft', 'Host': 'localhost', 'env': 'TEST', 'Datacenter': 'DC1 '})
skipping: [localhost] => (item={'Application': 'Apple', 'Host': 'testserver2', 'env': 'TEST', 'Datacenter': 'DC2'})
In the following task I want to make ansible not to fail when stderr contains the object has been modified or have a resource type.
- name: List nodes
delegate_to: localhost
shell: kubectl get nodes
run_once: true
register: output_error
failed_when: (output_error.stderr_lines | length > 0) and ("'the object has been modified' not in output_error.stderr or 'have a resource type' not in output_error.stderr")
However I am reveiving the following error message:
kubectl get nodes", "delta": "0:00:00.498169", "end": "2022-08-05 11:08:01.386024", "failed_when_result": true, "item": "nodes", "rc": 0, "start": "2022-08-05 11:08:00.887855", "stderr": "error: the server doesn't have a resource type \"nodes\"", "stderr_lines": ["error: the server doesn't have a resource type \"nodes\""], "stdout": "", "stdout_lines": []}
Use a regex which includes both alternatives:
- name: List nodes
delegate_to: localhost
shell: kubectl get nodes
run_once: true
register: output_error
failed_when:
- output_error.stderr_lines | length > 0
- output_error.stderr is not regex('the object has been modified|have a resource type')
For easier reading and maintenance you can set your positive matches in a list and join them together in an expression.
- name: List nodes
vars:
acceptable_err_matches:
- the object has been modified
- have a resource type
match_regex: acceptable_err_matches | map('regex_escape') | join('|')
delegate_to: localhost
shell: kubectl get nodes
run_once: true
register: output_error
failed_when:
- output_error.stderr_lines | length > 0
- output_error.stderr is not regex(match_regex)
I want to remove 1 month from current_date_operation in Ansible task. This is what I tried:
vars:
# for example current
current_date_operation: "{{ ansible_date_time.date }}"
previous_date_operation : "{{ '%Y-%m-%d'|strftime(current_date_operation.epoch|int - 2592000) }}"
Unfortunately, the above code is giving the following error:
"msg": "The task includes an option with an undefined variable. The error was: 'ansible.utils.unsafe_proxy.AnsibleUnsafeText object' has no attribute 'epoch'
Any idea?
Thanks
In your vars declaration, your are first getting the date key from object ansible_date_time.
On the next line, you are using that set variable (which is a string) and call on it the key epoch which does not exists as it is a property of the parent object (i.e. ansible_date_time). Since your var declaration cannot be parsed correctly, the var in itself is undefined.
The following playbook demonstrate you can get the expected result by fixing your vars definition:
---
- hosts: localhost
vars:
current_date_operation: "{{ ansible_date_time.date }}"
previous_date_operation : "{{ '%Y-%m-%d' | strftime(ansible_date_time.epoch | int - 2592000) }}"
tasks:
- debug:
var: current_date_operation
- debug:
var: previous_date_operation
Test run:
$ ansible-playbook playbook.yml
PLAY [localhost] **************************************************************************************************************************************************************************************************
TASK [Gathering Facts] ********************************************************************************************************************************************************************************************
ok: [localhost]
TASK [debug] ******************************************************************************************************************************************************************************************************
ok: [localhost] => {
"current_date_operation": "2020-01-14"
}
TASK [debug] ******************************************************************************************************************************************************************************************************
ok: [localhost] => {
"previous_date_operation": "2019-12-15"
}
PLAY RECAP ********************************************************************************************************************************************************************************************************
localhost : ok=3 changed=0 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0
I am using below tasks in my playbook to initialize cluster and add secondary to primary:
- name: Initialize replica set
run_once: true
delegate_to: host1
shell: >
mongo --eval 'printjson(rs.initiate())'
- name: Format secondaries
run_once: true
local_action:
module: debug
msg: '"{{ item }}:27017"'
with_items: ['host2', 'host3']
register: secondaries
- name: Add secondaries
run_once: true
delegate_to: host1
shell: >
/usr/bin/mongo --eval 'printjson(rs.add({{ item.msg }}))'
with_items: secondaries.results
I am getting below error:
TASK [mongodb-setup : Add secondaries] *******************************
fatal: [host1]: FAILED! => {"msg": "The task includes an option with an undefined variable. The error was: 'ansible.utils.unsafe_proxy.AnsibleUnsafeText object' has no attribute 'msg'\n\nThe error appears to have been in '/var/lib/awx/projects/_dev/roles/mongodb-setup/tasks/users.yml': line 15, column 3, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n\n- name: Add secondaries\n ^ here\n"}
Thanks for the response, I have amended my code as below
- name: Add secondaries
run_once: true
delegate_to: host-1
shell: >
/usr/bin/mongo --eval 'printjson(rs.add({{ item }}:27017))'
with_items:
- host2
- host3
but getting below error
failed: [host-2 -> host-1] (item=host-2) => {"changed": true, "cmd": "/usr/bin/mongo --eval 'printjson(rs.add(host-2:27017))'", "delta": "0:00:00.173077", "end": "2019-08-06 13:29:09.422560", "item": "host-2", "msg": "non-zero return code", "rc": 252, "start": "2019-08-06 13:29:09.249483", "stderr": "", "stderr_lines": [], "stdout": "MongoDB shell version: 3.2.22\nconnecting to: test\n2019-08-06T13:29:09.419-0500 E QUERY [thread1] SyntaxError: missing ) after argument list #(shell eval):1:37", "stdout_lines": ["MongoDB shell version: 3.2.22", "connecting to: test", "2019-08-06T13:29:09.419-0500 E QUERY [thread1] SyntaxError: missing ) after argument list #(shell eval):1:37"]}
You issue is not with rs.add() but with the data you loop over. In your last task, your item list is a single string.
# Wrong #
with_items: secondaries.results
You want to pass an actual list form your previously registered result:
with_items: "{{ secondaries.results }}"
That being said, registering the result of a debug task is rather odd. You should use set_fact to register what you need in a var, or better directly loop other your list of hosts in your task. It also looks like the rs.add funcion is exepecting a string so you should quote the argument in your eval. Something like:
- name: Add secondaries
shell: >
/usr/bin/mongo --eval 'printjson(rs.add("{{ item }}:27017"))'
with_items:
- host2
- host3
And the way you use delegation seems rather strange to me in this context but it's hard to give any valid clues without a complete playbook example of what you are trying to do (that you might give in a new question if necessary).
I wrote a playbook that read a content of two files. The first one is responsible for holding switches interfaces dynamically that have the protocol CDP.
example.cdp:
0/0
14/0
The second one (.cfg), is a file the contains also dynamically a bunch of interfaces that I need to push to a device using the cisco command "shutdown" to test my master/backup environment. If the interfaces of the example.cdp are here, I need to remove them because I cannot lose the communication with this device since the management is in-band.
example.cfg:
interface FastEthernet0/0
shutdown
interface FastEthernet1/0
shutdown
interface FastEthernet2/0
shutdown
interface FastEthernet2/1
shutdown
...
interface FastEthernet14/0
shutdown
playbook:
- name: Looping file
debug:
msg: "{{ item }}"
register: items
with_file:
- ~/ANSIBLE/{{ inventory_hostname }}.cfg
- debug: var=items.results[0].item
- name: capturing interfaces with cdp
raw: egrep '[0-9]+\/[0-9]+ ' -o ~/ANSIBLE/{{ inventory_hostname }}.cdp
register: cdp
- debug: var=cdp.stdout_lines
- set_fact:
cdp: "{{cdp.stdout_lines}}"
- debug: var=cdp
- name: Removing interfaces with cdp
raw: sed 's/interface FastEthernet{{item}}//' ~/ANSIBLE/{{ inventory_hostname }}.cfg
with_items:
- "{{cdp}}"
register: items
- debug: var=items
- name: Applying The Shutdown Template
ios_config:
lines:
- "{{ items.results[0].item }}"
provider: "{{cli}}"
register: shut1
- debug: var=shut1
tags: shut1
running the playbook:
<169.255.0.1> EXEC sed 's/interface FastEthernet0/0 //' ~/ANSIBLE /169.255.0.1.cfg
failed: [169.255.0.1] (item=0/0 ) => {
"changed": true,
"failed": true,
"item": "0/0 ",
"rc": 1,
"stderr": "sed: -e expression #1, char 30: unknown option to `s'\n",
"stdout": "",
"stdout_lines": []
}
<169.255.0.1> EXEC sed 's/interface FastEthernet14/0 //' ~/ANSIBLE/169.255.0.1.cfg
failed: [169.255.0.1] (item=14/0 ) => {
"changed": true,
"failed": true,
"item": "14/0 ",
"rc": 1,
"stderr": "sed: -e expression #1, char 31: unknown option to `s'\n",
"stdout": "",
"stdout_lines": []
}
As you can see, the problem is the content of the var "cdp". The interfaces have the symbol "/", wich is use in "sed" command and I should backslashed this one to solve my problem using ansible. Is there a way to open a variable and make some regsub on it?
sed can use any character as the regex tokenizer, so solve your issue quickly, turn it into (for instance using # character):
sed 's#interface FastEthernet{{item}}##' ~/ANSIBLE/{{ inventory_hostname }}.cfg
I have the impression templating would be a better way to write your tasks though.