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ism index patterns based on indexAlias/index #5117 #5118

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Description

We will be able to update the index_patterns of the ISM policy based on the indexAlias created (more useful when its dynamic and/or with rollover feature) when user supplies ism_policy_file. This will not interfere when user wants to manage the policy with superset of wildcard (which should be a manual step). This commit will only ensure policy's index_patterns are updated when user supplies policy_json_file.

Example:
route:
- cluster-utils: '/route_name == "cluster"'
sink:

  • opensearch:
    hosts: [ "https://opensearch-node1:9200","https://opensearch-node2:9200" ]

    Change to your credentials

    username: "admin"
    password: "PGjGcHKfQW1U"
    insecure: true
    dlq_file: /usr/share/data-prepper/log/data-prepper/dlq.log

    Add a certificate file if you are accessing an OpenSearch cluster with a self-signed certificate

    #cert: /path/to/cert
    normalize_index: true
    index: cluster-utils_eastus2_${cluster_name}
    index_type: custom
    template_type: v1
    template_file: /usr/share/data-prepper/templates/template-file.json
    ism_policy_file: /usr/share/data-prepper/policies/ism-policy.json
    routes: [cluster-utils]

Where using data prepper we will create ism policy (if user supplies wildcard cluster-utils*) each time we receive a different cluster_name and will fail because opensearch will not allow having same patterns in multiple policies. Also keeping a single policy wouldn't make sense if we want to manage via AP. with this change data-prepper will create new policy with index pattern as cluster-utils_eastus2_${cluster_name}* which will in-align to index template index_patterns. Also, previous functionality will also work as index_patterns are specific to the indexAlias. However users will have to re-run the policies on the older indexes created.

Extremely useful with rollover through ISM policy.

Issues Resolved

Resolves #5117

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Signed-off-by: kranthikirang <kranthi.guttikonda9@gmail.com>
@kranthikirang
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kranthikirang commented Nov 7, 2024

Can anyone look into this PR please? @dlvenable

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@dlvenable dlvenable left a comment

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Thank you @kranthikirang for this contribution. I have a few questions and then some specific comments.

What was the ISM policy this created for your index?

Did you try with any variables that are not at the end?

Signed-off-by: kranthikirang <kranthi.guttikonda9@gmail.com>
Signed-off-by: kranthikirang <kranthi.guttikonda9@gmail.com>
Signed-off-by: kranthikirang <kranthi.guttikonda9@gmail.com>
@kranthikirang
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@dlvenable I have added getIndexPattern test case as pert of integration test suite. I have followed the below steps.

`docker run --name=opendistro -p 9200:9200 -p 9600:9600 -e "discovery.type=single-node" -d amazon/opendistro-for-elasticsearch:1.13.3

./gradlew :data-prepper-plugins:opensearch:integrationTest --tests "org.opensearch.dataprepper.plugins.sink.opensearch.OpenSearchIT" -Dtests.opensearch.host=localhost:9200 -Dtests.opensearch.user=admin -Dtests.opensearch.password=****
`

No issues were observed. Please take a look.

@kranthikirang
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@dlvenable Can you please run the tests again?

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Support dynamic indexAlias through dynamic index patterns in ism policy using DP
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