Just hit on something scary I realized that I had a tag in y

Question

Just hit on something scary I realized that I had a tag in yaml that was set as an int when it should be a string was set as `ProjectNumber 141206` but should have to force it to string you ll see why So I noticed that it was set incorrectly and I decided to just fix it by changing it back and applying the tag change ```Updating newthing Type Name Status Info pulumi pulumi Stack modularity newthing failed 1 error ~ azure native network VirtualNetwork VnetName updating failed diff ~tags 1 error Diagnostics pulumi pulumi Stack modularity newthing error update failed azure native network VirtualNetwork VnetName error Code= InUseSubnetCannotBeDeleted Message= Subnet xxxx is in use by subscriptions yyyy resourceGroups rgName providers Microsoft Network applicationGateways appgwName gatewayIPConfigurations appGatewayIpConfig and cannot be deleted In order to delete the subnet delete all the resources within the subnet See Details= ``` Edit seems to be an instance of setting `ignoreChanges subnets ` on `opts` of the vnet worked well for me

better-shampoo-48884 · Answer

that is friggin scary running a diff shows this ``` ~ azure native network VirtualNetwork update id= subscriptions yyyy resourceGroups rgName providers Microsoft Network virtualNetworks VnetName urn=urn pulumi newthing modularity azure native network VirtualNetwork VnetName provider=urn pulumi newthing modularity pulumi providers azure native default 0 7 1 aa842b3f 7bf5 4401 b0eb a65d275ed25d ~ tags ~ ProjectNumber 1 412601e+06 = gt 1412601 ```

better-shampoo-48884 · Answer

so without showing in the diff or the preview in any way it wants to delete a subnet

better-shampoo-48884 · Answer

running a pulumi refresh then another pulumi up diff shows that in order to update the tag it wants to destroy all my subnets haven t changed anything but the tag regardless it s scary that `up` attempts to delete things that `preview` doesn t communicate that it plans on doing

better-shampoo-48884 · Answer

The original run ```λ pulumi up y suppress outputs Previewing update newthing Type Name Plan Info pulumi pulumi Stack ~ azure native resources ResourceGroup name goes here update diff ~tags ~ azure native keyvault Vault name goes here update diff ~tags ~ azure native containerregistry Registry name goes here update diff ~tags ~ azure native network NetworkSecurityGroup name goes here update diff ~tags ~ azure native network VirtualNetwork name goes here update diff ~tags ~ azure native network NetworkSecurityGroup name goes here update diff ~tags ~ azure native network NetworkSecurityGroup name goes here update diff ~tags ~ azure native compute DiskEncryptionSet name goes here update diff ~tags ~ azure native network ApplicationGateway name goes here update diff ~tags ~ azure native authorization RoleAssignment name goes here update diff ~principalId + azure native containerservice ManagedCluster name goes here create + azure native containerservice AgentPool name goes here create + azure native containerservice AgentPool name goes here create + azure native containerservice AgentPool name goes here create```

tall-librarian-49374 · Answer

That s <https github com pulumi pulumi azure native issues 611>

tall-librarian-49374 · Answer

Subnets that are being deleted are not resources they are properties of vnet that s why you don t see them in preview

better-shampoo-48884 · Answer

right so ignore changes it is then