Hi folks, I am trying to get something done with P...
# getting-startedc
cold-cpu-48402
11/29/2022, 12:38 PMHi folks, I am trying to get something done with Pulumi and I’m not even sure it’s possible after checking all examples.
Basically, what I need to achieve is the following:
1. create some resources
2. (do some other testing with python)
3. modify those resources
4. (do some other testing)
5. and so forth
6. finally, destroy the thing.
I figured the automation API is the way to go, but it insists on receiving a static program rather than (what I would have liked to) an ‘open-ended’ stack that will get updated as I modify objects.
e
echoing-dinner-19531
11/29/2022, 1:57 PMAutomation api would be the way to go. You should be able to feed config into the program to change what the program does each time.
c
cold-cpu-48402
11/29/2022, 1:58 PMI’m trying to do this as wieldy as possible and it’s not fun working like that. I could use control logic (e.g. if step == this_step:) or try to instantiate resources from a global variable (having some issues with that), but both have annoying limitations
e
echoing-dinner-19531
11/29/2022, 1:59 PMI think automation api should be fine with global variables for inline programs. They do just run in the same process space.
c
cold-cpu-48402
11/29/2022, 1:59 PMI have failed to instantiate resources from a global array or dict. If you could help me with that, that would be wonderful
e
echoing-dinner-19531
11/29/2022, 2:11 PMCan you run a simple version of the program just making one resource?
c
cold-cpu-48402
11/29/2022, 2:27 PMyeah, that works. also control logic works. it’s just so unwieldy to write programs like that. I wish I could just declare resources as I go and have pulumi do the right thing
cold-cpu-48402
11/29/2022, 2:28 PMinstead of writing something like:
res = resource
stack.up
res2 = resource2
stack.up
I need to write something like:
def program
res = resource
if flag = 2:
res2 = resource2
stack.up
flag = 2
stack.up
cold-cpu-48402
11/29/2022, 2:35 PMif I could write something like this (note, this doesn’t work), it would also be fine:
def program:
locals().update(resource_dictionary)
resource_dictionary[“res”] = resource
stack.up
resource_dictionary[“res2"] = resource2
stack.up
e
echoing-dinner-19531
11/29/2022, 3:10 PMyou could kinda do that if it's the same resources each time, something like:
resArgs = args1
stack.up
resArgs = args2
stack.up
and just have the program be something like:
def program():
res = Resource("name", args=resArgs)
c
cold-cpu-48402
11/29/2022, 3:12 PMbut I want to keep the previous resources
cold-cpu-48402
11/29/2022, 3:12 PMthat’s why I wanted the dictionary
e
echoing-dinner-19531
11/29/2022, 3:15 PMI mean in general you can do something like:
d = {}
d["name] = (Resource, ResourceArgs(...))
def program():
for key in d:
ctor, args = d[key]
ctor(key, args=args)
c
cold-cpu-48402
11/29/2022, 3:16 PMokay! that seems like the syntax I was missing. going to give that a shot
cold-cpu-48402
11/29/2022, 3:22 PMnope, not working. can you maybe give me a concretization with something simple like an aws s3 bucket? maybe i’m not picking up the invocation syntax
e
echoing-dinner-19531
11/29/2022, 3:25 PM Copy code
from pulumi_aws import s3
d = {}
d["test"] = (s3.Bucket, s3.BucketArgs(tags={"myTag": "example"}))
for key in d:
ctor, args = d[key]
ctor(key, args)c
cold-cpu-48402
11/29/2022, 3:26 PMokay! I was off on the argument types. gotcha 🙂
cold-cpu-48402
11/29/2022, 3:31 PMwonderful. thank you oh so much.
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