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override parameters in parameter file for cloudformation

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3

lets say i have all parameters needed to create a cloudformation stack in a json file but want to override some parameters from the parameters file..is this possible?

aws cloudformation create-stack 
 --stack-name sample-stack 
 --template-body file://sample-stack.yaml 
 --parameters file://sample-stack.json 
 --capabilities CAPABILITY_IAM 
 --disable-rollback 
 --region us-east-1 
 --output json && 
aws cloudformation wait stack-create-complete 
 --stack-name sample-stack

so lets say there are like 10 parameters in sample-stack.json file BUT i have like 2 parameters i want to override from that file.

Is this possible?

Thanks

amazon-web-services amazon-cloudformation

share|improve this question

asked Mar 26 at 17:21

uberrebuuberrebu

36011 gold badge44 silver badges1717 bronze badges

add a comment | 

3

lets say i have all parameters needed to create a cloudformation stack in a json file but want to override some parameters from the parameters file..is this possible?

aws cloudformation create-stack 
 --stack-name sample-stack 
 --template-body file://sample-stack.yaml 
 --parameters file://sample-stack.json 
 --capabilities CAPABILITY_IAM 
 --disable-rollback 
 --region us-east-1 
 --output json && 
aws cloudformation wait stack-create-complete 
 --stack-name sample-stack

so lets say there are like 10 parameters in sample-stack.json file BUT i have like 2 parameters i want to override from that file.

Is this possible?

Thanks

amazon-web-services amazon-cloudformation

share|improve this question

asked Mar 26 at 17:21

uberrebuuberrebu

36011 gold badge44 silver badges1717 bronze badges

add a comment | 

lets say i have all parameters needed to create a cloudformation stack in a json file but want to override some parameters from the parameters file..is this possible?

aws cloudformation create-stack 
 --stack-name sample-stack 
 --template-body file://sample-stack.yaml 
 --parameters file://sample-stack.json 
 --capabilities CAPABILITY_IAM 
 --disable-rollback 
 --region us-east-1 
 --output json && 
aws cloudformation wait stack-create-complete 
 --stack-name sample-stack

so lets say there are like 10 parameters in sample-stack.json file BUT i have like 2 parameters i want to override from that file.

Is this possible?

Thanks

amazon-web-services amazon-cloudformation

share|improve this question

asked Mar 26 at 17:21

uberrebuuberrebu

36011 gold badge44 silver badges1717 bronze badges

aws cloudformation create-stack 
 --stack-name sample-stack 
 --template-body file://sample-stack.yaml 
 --parameters file://sample-stack.json 
 --capabilities CAPABILITY_IAM 
 --disable-rollback 
 --region us-east-1 
 --output json && 
aws cloudformation wait stack-create-complete 
 --stack-name sample-stack

share|improve this question

asked Mar 26 at 17:21

uberrebuuberrebu

36011 gold badge44 silver badges1717 bronze badges

share|improve this question

asked Mar 26 at 17:21

uberrebuuberrebu

36011 gold badge44 silver badges1717 bronze badges

asked Mar 26 at 17:21

uberrebuuberrebu

36011 gold badge44 silver badges1717 bronze badges

asked Mar 26 at 17:21

uberrebuuberrebu

36011 gold badge44 silver badges1717 bronze badges

2 Answers
2

active

oldest

votes

1

This isn't available in the AWS CLI right now, but there is a feature request on GitHub. For now you'll need to script something to generate your overrides prior to creating the stack. Another potential option is to store your values in something that you can dynamically reference, such as Parameter Store, and update them via the API prior to stack creation.

share|improve this answer

answered Mar 26 at 18:51

bwestbwest

7,09533 gold badges2121 silver badges4848 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  i see...thanks for the answer
  
  – uberrebu
  Mar 26 at 19:24
  
  

  
  
  
  

add a comment | 

0

If you want to update a stack and specify only the list of parameters that changed, you can have a look at this shell script that I wrote.

Usage:

▶ bash update_stack.sh -h
Usage: update_stack.sh [-h] STACK_NAME KEY1=VAL1 [KEY2=VAL2 ...]
Updates CloudFormation stacks based on parameters passed here as key=value pairs. All
 other parameters are based on existing values.

To solve your problem, you could borrow the edit() function:

PARAMS='sample-stack.json'

edit() .ParameterValue) 

cp $PARAMS $PARAMS.bak
edit param1=newval1 param2=newval2

And then create your stack as normal.

share|improve this answer

edited Apr 4 at 9:59

answered Mar 29 at 2:16

Alex HarveyAlex Harvey

7,24811 gold badge1515 silver badges3636 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  what if i want to replace like 3 parameter values from the parameters.json file? how will the jq command look?..like param-key1, param-key2, param-key3 => param-value1, param-value2, param-value3 for example
  
  – uberrebu
  Apr 2 at 18:45
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @uberrebu, I have updated the answer to show a shell script that I wrote that handles the case of more than 1 parameter. Let me know what you think!
  
  – Alex Harvey
  Apr 4 at 9:07
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  i really will like to run a single command that will not involve creating another json file..will like to use jq power to replace..use case is just to modify a few parameters
  
  – uberrebu
  Apr 4 at 15:23
  

  
  
  
  

add a comment | 

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1

This isn't available in the AWS CLI right now, but there is a feature request on GitHub. For now you'll need to script something to generate your overrides prior to creating the stack. Another potential option is to store your values in something that you can dynamically reference, such as Parameter Store, and update them via the API prior to stack creation.

share|improve this answer

answered Mar 26 at 18:51

bwestbwest

7,09533 gold badges2121 silver badges4848 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  i see...thanks for the answer
  
  – uberrebu
  Mar 26 at 19:24
  
  

  
  
  
  

add a comment | 

1

This isn't available in the AWS CLI right now, but there is a feature request on GitHub. For now you'll need to script something to generate your overrides prior to creating the stack. Another potential option is to store your values in something that you can dynamically reference, such as Parameter Store, and update them via the API prior to stack creation.

share|improve this answer

answered Mar 26 at 18:51

bwestbwest

7,09533 gold badges2121 silver badges4848 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  i see...thanks for the answer
  
  – uberrebu
  Mar 26 at 19:24
  
  

  
  
  
  

add a comment | 

This isn't available in the AWS CLI right now, but there is a feature request on GitHub. For now you'll need to script something to generate your overrides prior to creating the stack. Another potential option is to store your values in something that you can dynamically reference, such as Parameter Store, and update them via the API prior to stack creation.

share|improve this answer

answered Mar 26 at 18:51

bwestbwest

7,09533 gold badges2121 silver badges4848 bronze badges

share|improve this answer

answered Mar 26 at 18:51

bwestbwest

7,09533 gold badges2121 silver badges4848 bronze badges

answered Mar 26 at 18:51

bwestbwest

7,09533 gold badges2121 silver badges4848 bronze badges

answered Mar 26 at 18:51

bwestbwest

7,09533 gold badges2121 silver badges4848 bronze badges

0

If you want to update a stack and specify only the list of parameters that changed, you can have a look at this shell script that I wrote.

Usage:

▶ bash update_stack.sh -h
Usage: update_stack.sh [-h] STACK_NAME KEY1=VAL1 [KEY2=VAL2 ...]
Updates CloudFormation stacks based on parameters passed here as key=value pairs. All
 other parameters are based on existing values.

To solve your problem, you could borrow the edit() function:

PARAMS='sample-stack.json'

edit() .ParameterValue) 

cp $PARAMS $PARAMS.bak
edit param1=newval1 param2=newval2

And then create your stack as normal.

share|improve this answer

edited Apr 4 at 9:59

answered Mar 29 at 2:16

Alex HarveyAlex Harvey

7,24811 gold badge1515 silver badges3636 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  what if i want to replace like 3 parameter values from the parameters.json file? how will the jq command look?..like param-key1, param-key2, param-key3 => param-value1, param-value2, param-value3 for example
  
  – uberrebu
  Apr 2 at 18:45
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @uberrebu, I have updated the answer to show a shell script that I wrote that handles the case of more than 1 parameter. Let me know what you think!
  
  – Alex Harvey
  Apr 4 at 9:07
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  i really will like to run a single command that will not involve creating another json file..will like to use jq power to replace..use case is just to modify a few parameters
  
  – uberrebu
  Apr 4 at 15:23
  

  
  
  
  

add a comment | 

0

If you want to update a stack and specify only the list of parameters that changed, you can have a look at this shell script that I wrote.

Usage:

▶ bash update_stack.sh -h
Usage: update_stack.sh [-h] STACK_NAME KEY1=VAL1 [KEY2=VAL2 ...]
Updates CloudFormation stacks based on parameters passed here as key=value pairs. All
 other parameters are based on existing values.

To solve your problem, you could borrow the edit() function:

PARAMS='sample-stack.json'

edit() .ParameterValue) 

cp $PARAMS $PARAMS.bak
edit param1=newval1 param2=newval2

And then create your stack as normal.

share|improve this answer

edited Apr 4 at 9:59

answered Mar 29 at 2:16

Alex HarveyAlex Harvey

7,24811 gold badge1515 silver badges3636 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  what if i want to replace like 3 parameter values from the parameters.json file? how will the jq command look?..like param-key1, param-key2, param-key3 => param-value1, param-value2, param-value3 for example
  
  – uberrebu
  Apr 2 at 18:45
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @uberrebu, I have updated the answer to show a shell script that I wrote that handles the case of more than 1 parameter. Let me know what you think!
  
  – Alex Harvey
  Apr 4 at 9:07
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  i really will like to run a single command that will not involve creating another json file..will like to use jq power to replace..use case is just to modify a few parameters
  
  – uberrebu
  Apr 4 at 15:23
  

  
  
  
  

add a comment | 

If you want to update a stack and specify only the list of parameters that changed, you can have a look at this shell script that I wrote.

Usage:

▶ bash update_stack.sh -h
Usage: update_stack.sh [-h] STACK_NAME KEY1=VAL1 [KEY2=VAL2 ...]
Updates CloudFormation stacks based on parameters passed here as key=value pairs. All
 other parameters are based on existing values.

To solve your problem, you could borrow the edit() function:

PARAMS='sample-stack.json'

edit() .ParameterValue) 

cp $PARAMS $PARAMS.bak
edit param1=newval1 param2=newval2

And then create your stack as normal.

share|improve this answer

edited Apr 4 at 9:59

answered Mar 29 at 2:16

Alex HarveyAlex Harvey

7,24811 gold badge1515 silver badges3636 bronze badges

▶ bash update_stack.sh -h
Usage: update_stack.sh [-h] STACK_NAME KEY1=VAL1 [KEY2=VAL2 ...]
Updates CloudFormation stacks based on parameters passed here as key=value pairs. All
 other parameters are based on existing values.

PARAMS='sample-stack.json'

edit() .ParameterValue) 

cp $PARAMS $PARAMS.bak
edit param1=newval1 param2=newval2

share|improve this answer

edited Apr 4 at 9:59

answered Mar 29 at 2:16

Alex HarveyAlex Harvey

7,24811 gold badge1515 silver badges3636 bronze badges

answered Mar 29 at 2:16

Alex HarveyAlex Harvey

7,24811 gold badge1515 silver badges3636 bronze badges

answered Mar 29 at 2:16

Alex HarveyAlex Harvey

7,24811 gold badge1515 silver badges3636 bronze badges