Wazuh Indexer ISM: The existent index does not updates the policy modification

[dariommr]

Wazuh version	Install type	Action performed	Platform
4.3.0-rc6	Indexer	Install	Any

Rationale

When editing an existing ISM policy, the changes are not applied to the managed indices.

Steps to reproduce

1. Create Policy

• The policy is applied to the wazuh-alerts-* index pattern, so every new index should be managed by this policy.

• The policy was created for 30 days in hot storage, 365 days in cold storage, then delete the index.

2. Apply the policy to the current indices

3. Check the managed indices

4. Edit the Policy

• Configured in 1d for hot and 2d for cold in order to check soon about the transitions

5. Check the index state transition

• We can see the newer index was created with the policy applied, but it seems the index from the previous day is still in hot, and should be in cold state.

• Checking the index date

The first index (an already existent index) failed to apply the transitions after the policy modification:

Expected results

After modifying the ISM policy, the transitions for the existent indices (not only for the newly created ones) should be applied as expected, but it seems it is not, it still conserves the previous configuration.

Thank you in advance!