This is my (shortened) template.yml file:
AWSTemplateFormatVersion: '2010-09-09'
Transform: AWS::Serverless-2016-10-31
Description: CF template for foobar
Parameters:
EnvType:
Type: String
Description: The environment to deploy to.
AllowedValues:
- dev1
- qc1
- uat1
Default: dev1
VeryImportantFunction:
Type: AWS::Serverless::Function
Properties:
CodeUri: src/very_important/
Handler: app.very_important
Runtime: python3.8
{unrelated policies and environment variables}
Events:
VeryImportantSchedule:
Type: Schedule
Properties:
Schedule: 'rate(2 hours)'
Enabled: True
What I am trying to do is only enable that schedule when the EnvType parameter is set to qc1. The problem is, I can't get either the Equals condition or the If condition to work. I have tried all of the following:
Enabled: !Equals [!Ref EnvType, qc1]
Enabled: !Equals [!Ref EnvType, "qc1"]
and
Conditions:
IsQcEnv: !Equals [!Ref EnvType, qc1]
{and}
IsQcEnv: !Equals [!Ref EnvType, "qc1"]
....
....
....
Events:
VeryImportantSchedule:
Type: Schedule
Properties:
Schedule: 'rate(2 hours)'
Enabled: !If [IsQcEnv, True, False]
In between testing all four of those cases, I deleted my entire stack rather than trying to update them, as a comment in this post suggested. I also triple checked that the parameter being passed in is not qc1, and also just set the Enabled flag to False to make sure that it would actually disable the schedule, which it did. At this point I'm stumped, does anyone have any idea of what I'm doing wrong or what I could try?
I had the same problem. Apparently the Enabled property does not work well with !If or !Equals. I fixed it with a hack in the Schedule property:
Events:
InvocationLevel:
Type: Schedule
Properties:
Schedule: !If [IsQcEnv, "rate(2 hours)", "cron(0 0 31 2 ? *)"]
If the envType is not qc1, the cron expression will be used. This expression will execute your function on February 31st. Which means it will never execute.
I found this solution with help from those answers: