hey folks wave I m trying to use Pulumi plans but is there a

Question

hey folks wave I m trying to use Pulumi plans but is there a way to verify a plan can be applied During my tests if I apply an old plan someone modified the stack after I generated the plan it fails to apply I would like to verify it can be applied before running the `pulumi up`

victorious-church-57397 · Answer

you can add ` r` to your `pulumi up` or `pulumi preview` commands to trigger a state refresh before running

enough-potato-36582 · Answer

interesting This will check if the plan is ok to apply

enough-potato-36582 · Answer

will try

victorious-church-57397 · Answer

no it refreshes the state so that if someones changed it when youre working on it it will pick up the changes

enough-potato-36582 · Answer

ok that doesn t help with the issue I described with the plan though

victorious-church-57397 · Answer

gt During my tests if I apply an old plan someone modified the stack after I generated the plan it fails to apply does it not

victorious-church-57397 · Answer

sorry i think i misunderstood the question when you say verify the plan can be applied doesn t `pulumi preview` do this and `pulumi preview` by default is ran during a `pulumi up`

enough-potato-36582 · Answer

I m using the plan feature using the automation API I generate a plan using the preview It s a json file that then I pass to the Up command and it applies exactly what is defined in that json file

enough-potato-36582 · Answer

the problem is the Up doesn t check if the plan is compatible with the state of the Stack at that point

enough-potato-36582 · Answer

and the Up may fail to apply the whole changeset but it s not an atomic operation the Up may partially apply the plan

victorious-church-57397 · Answer

ah ok sorry wasnt aware you were using automation api is there no way you can run a preview against that plan again like a second check on it

victorious-church-57397 · Answer

ive not used the automation api im afraid so not much help now joy

enough-potato-36582 · Answer

hehe no worries The only way to make it a reliable process is for the Up command to verify it can be applied after locking the Stack otherwise there s always a window of opportunity for another Up process to start between a preview and an up