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we have many Ambari LAB clusters - Apache Ambari Version 2.5.0.3 , while ambari agent installed on Linux redhat machines

my target is to find a way to update the values of services , on all the Ambari clusters , by automate the process

what we do until now , is take each ambari cluster and change the services values - but this take a lot of time

so if we have diff 25 ambari LAB clusters , then we need access each ambari cluster and change the values , this is very exhausting because we have a lot of values to change ...

but we have a new idea to automate the process

what we thinking is to generate a new blueprint.json from some ambari cluster file as the following:

curl -H "X-Requested-By: ambari" -X GET -u admin:admin http://{ambari_host}:8080/api/v1/clusters/{Cluster_name}\?format\=blueprint >  blueprint.json

then update/change the values in the new blueprint.json file

and finally upload/push the json file on all clusters

the big question is:

how to upload the new blueprint.json file on ambari cluster ?

is it possible scenario ?

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You may register and upload new blueprint using POST request as follows.

curl --verbose -H "X-Requested-By: ambari" -X POST -u admin:admin http://{ambari_host}:8080/api/v1/blueprints/:{new blueprint name}?validate_topology=false --data  "@./blueprint.json"

But this will not change configuration of existing cluster. Blueprints can be used only before creating new cluster.

You may refer this document if you need to modify existing cluster configurations.

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