Hi Team
I have created a Playbook for helm deployment and need to make resiliency
and exception handling with the help of when condition I got confused in
that when adding multiple conditions can any one please help.
```
---
#Header Section
- name: This playbook will deploy the kafka service in Cluster
hosts: host
gather_facts: true
vars:
helm_chart_url: "https://charts.bitnami.com/bitnami";
pv_file: ~/yamls/kafka/persistent_volume_kafka.yml
release_name: kafka
namespace: default
values_files: ~/yamls/kafka/
helm_chart_name: bitnami
#Task Section
tasks:
- name: Checking bitnami repo
ansible.builtin.shell: helm repo list | grep -i "bitnami" | awk '{print
$1}'
register: repo_result
failed_when: # repo already exit if not exsit next task perform to add
it
ignore_errors: yes
- name: Add helm bitnami/kafka repo
kubernetes.core.helm_repository:
name: bitnami
repo_state: present
repo_url: "{{ helm_chart_url }}"
when: # If first task failed this task will add repo
- name: Updating helm bitnami/kafka repo
ansible.builtin.command: helm repo update {{helm_chart_name}}
register: result_repo
- name: Output of updating helm repo
debug:
var: result_repo.stdout
- name: Create a persistence Volume by reading the definition from a local
file
kubernetes.core.k8s:
state: present
src: "{{pv_file}}"
namespace: "{{namespace}}"
wait: yes
- name: listing helm {{release_name}} release
shell: helm ls | grep -i {{release_name}} | awk '{print $1}'
ignore_errors: true
register: result
failed_when: '"release_name" not in result.stdout' or # if already
release not available will install it if available skip the task
- debug:
var: result.stdout
- name: Deploy Kafka chart using values files
command: helm install {{release_name}} -f values.yaml bitnami/kafka
args:
chdir: "{{values_files}}"
when: '"{{release_name}}" not in result.stdout' # This task perform if
pervisious task not found any release
register: command_output
- name: Output of the Helm kafka release
debug:
var: command_output.stdout_lines
when: #This task will run when pervisious task execute well
# and the output is coming in list if we can filter the release
#command_output.stdout_lines[0]["NAME"]=="kafka"
- debug:
var: command_output.stdout_lines[0]
- name: Checking helm {{release_name}} release
shell: helm ls | grep -i {{release_name}} | awk '{print $1}'
register: result
- debug:
msg: "In Helm '{{result.stdout}}' release available"
when: 'result.stdout != "release_name"'
------------
I have mention comments where we need to add the when conditions
task1: checking bitnami chart is added or not if not added task will
failed Task2: will based on the task one if failed this task will add the
repo or skip it task3: updating the help repo task4: creating persistence
volume task5 list helm chart if release available task skip task6: will
deploy if prevision task could not find release
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