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# python

sparse-intern-71089

11/14/2019, 6:22 PM

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white-balloon-205

11/14/2019, 6:22 PM

Did you change the logical name of the resource in your Pulumi code? This would cause Pulumi to think it needs to create a new one and delete the old one. (the logical name is how Pulumi tracks identity across deployments)

white-balloon-205

11/14/2019, 6:23 PM

That is

aws.rds.ParameterGroup(logicalName, { name: physicalName })

high-morning-18773

11/14/2019, 6:23 PM

hmm i have code in python module and did not change resource name

high-morning-18773

11/14/2019, 6:24 PM

i do self.name + “paramater group”

high-morning-18773

11/14/2019, 6:24 PM

let me look at details

white-balloon-205

11/14/2019, 6:24 PM

What does your preview show?

high-morning-18773

11/14/2019, 6:24 PM

looking

high-morning-18773

11/14/2019, 6:25 PM

Copy code

pulumi:pulumi:Stack: (same)
    [urn=urn:pulumi:test::test::pulumi:pulumi:Stack::test-test]
        + aws:rds/parameterGroup:ParameterGroup: (create)
            [urn=urn:pulumi:test::test::mahana-python:snorkelfargateapp:MahanaFargateApp$aws:rds/parameterGroup:ParameterGroup::testdevapptest]
            [provider=urn:pulumi:test::test::pulumi:providers:aws::default_1_7_0::4910d117-d2d7-4356-83a3-4e4c7694b51a]
            description: "Managed by Pulumi"
            family     : "postgres9.6"
            name       : "testdevapprdsparameters"
            parameters : [
                [0]: {
                    applyMethod: "pending-reboot"
                    name       : "rds.force_ssl"
                    value      : "0"
                }
            ]

high-morning-18773

11/14/2019, 6:26 PM

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- aws:rds/parameterGroup:ParameterGroup: (delete)
        [id=testrdsparameters]
        [urn=urn:pulumi:test::test::aws:rds/parameterGroup:ParameterGroup::test]
        [provider=urn:pulumi:test::test::pulumi:providers:aws::default_1_8_0::de9a190f-2958-4411-a5e8-fd8a3a52bfc0]
        --aws:ecs/taskDefinition:TaskDefinition: (delete-replaced)
            [id=testdevappfargate-task]
            [urn=urn:pulumi:test::test::mahana-python:snorkelfargateapp:MahanaFargateApp$aws:ecs/taskDefinition:TaskDefinition::testdevappapp-task]
            [provider=urn:pulumi:test::test::pulumi:providers:aws::default_1_8_0::de9a190f-2958-4411-a5e8-fd8a3a52bfc0]
    - aws:rds/parameterGroup:ParameterGroup: (delete)
        [id=testdevapprdsparameters]
        [urn=urn:pulumi:test::test::aws:rds/parameterGroup:ParameterGroup::testdevapptest]
        [provider=urn:pulumi:test::test::pulumi:providers:aws::default_1_8_0::de9a190f-2958-4411-a5e8-fd8a3a52bfc0]

high-morning-18773

11/14/2019, 6:26 PM

let me check the name in the ui

white-balloon-205

11/14/2019, 6:27 PM

Yeah - it looks like you are changing the URN from: •

urn:pulumi:test::test::aws:rds/parameterGroup:ParameterGroup::test

•

urn:pulumi:test::test::mahana-python:snorkelfargateapp:MahanaFargateApp$aws:rds/parameterGroup:ParameterGroup::testdevapptest

Are you moving it inside a component?

white-balloon-205

11/14/2019, 6:28 PM

Pulumi thinks these are two unrelated resources since their URNs are different - so creates the latter and deletes the former. You can use

aliases

to tell Pulumi these are two different names for the same thing. https://www.pulumi.com/docs/intro/concepts/programming-model/#aliases

high-morning-18773

11/14/2019, 6:29 PM

kk i will take a look

high-morning-18773

11/14/2019, 6:37 PM

Thank you this helped

Copy code

Provides a list of aliases for a resource or component. When making a breaking change to the name or type of a resource or component, you can add the old name to the list of aliases for a resource to ensure that existing resources will be migrated to the new name instead of being deleted and replaced with the new named resource.

high-morning-18773

11/14/2019, 6:53 PM

This is also probably why new congnito pool was getting created when i was adding new attributes to existing congnito user pool

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