Invoke Lambda Locally from Local Lambda











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I am trying to invoke a lambda function locally that invokes another lambda function, also local.



I am using sam local start-lambda -t notificationServiceTemplate.yml --docker-network lambda-local --host 0.0.0.0



I then start my consumer lambda, that invokes the worker lambda,



aws lambda invoke --function-name ImportUsageConsumerLambda --endpoint-url http://127.0.0.1:3001



The consumer lambda function makes the invoke call using these parameters,



if (process.env.STACK_ENVIRONMENT == "local" ) {
options.endpoint = "http://0.0.0.0:3001/";
options.sslEnabled = false;
}
lambda = new AWS.Lambda(options);


It doesn't work because the lambda container cannot access localhost in outside the container, UnknownEndpoint: Inaccessible host: '0.0.0.0'. This service may not be available in the 'us-west-2' region.n.



I understand using the endpoint 0.0.0.0:3001 will not work because that is where the start-lambda setups the lambda endpoint that is accessible to my host and not the same network as within the lambda docker container.



I've managed to get connected to a dynamodb docker container following this question and answer here.



Is there a simple way to do this that I am missing?
Like a hostname of the lambda container that I can call from inside the lambda container, i.e. options.endpoint = "http://lambda:3001/";?










share|improve this question






















  • localhost is not 0.0.0.0, it's 127.0.0.1. It's not clear why you are using 127.0.0.1 as the endpoint in one place but not the other.
    – Michael - sqlbot
    Nov 11 at 1:37












  • Thanks, that is true. I was using 127.0.0.1 in all places, but in my vain attempts to connect the two I tried using host 0.0.0.0
    – natemacinnes
    Nov 11 at 1:43















up vote
0
down vote

favorite












I am trying to invoke a lambda function locally that invokes another lambda function, also local.



I am using sam local start-lambda -t notificationServiceTemplate.yml --docker-network lambda-local --host 0.0.0.0



I then start my consumer lambda, that invokes the worker lambda,



aws lambda invoke --function-name ImportUsageConsumerLambda --endpoint-url http://127.0.0.1:3001



The consumer lambda function makes the invoke call using these parameters,



if (process.env.STACK_ENVIRONMENT == "local" ) {
options.endpoint = "http://0.0.0.0:3001/";
options.sslEnabled = false;
}
lambda = new AWS.Lambda(options);


It doesn't work because the lambda container cannot access localhost in outside the container, UnknownEndpoint: Inaccessible host: '0.0.0.0'. This service may not be available in the 'us-west-2' region.n.



I understand using the endpoint 0.0.0.0:3001 will not work because that is where the start-lambda setups the lambda endpoint that is accessible to my host and not the same network as within the lambda docker container.



I've managed to get connected to a dynamodb docker container following this question and answer here.



Is there a simple way to do this that I am missing?
Like a hostname of the lambda container that I can call from inside the lambda container, i.e. options.endpoint = "http://lambda:3001/";?










share|improve this question






















  • localhost is not 0.0.0.0, it's 127.0.0.1. It's not clear why you are using 127.0.0.1 as the endpoint in one place but not the other.
    – Michael - sqlbot
    Nov 11 at 1:37












  • Thanks, that is true. I was using 127.0.0.1 in all places, but in my vain attempts to connect the two I tried using host 0.0.0.0
    – natemacinnes
    Nov 11 at 1:43













up vote
0
down vote

favorite









up vote
0
down vote

favorite











I am trying to invoke a lambda function locally that invokes another lambda function, also local.



I am using sam local start-lambda -t notificationServiceTemplate.yml --docker-network lambda-local --host 0.0.0.0



I then start my consumer lambda, that invokes the worker lambda,



aws lambda invoke --function-name ImportUsageConsumerLambda --endpoint-url http://127.0.0.1:3001



The consumer lambda function makes the invoke call using these parameters,



if (process.env.STACK_ENVIRONMENT == "local" ) {
options.endpoint = "http://0.0.0.0:3001/";
options.sslEnabled = false;
}
lambda = new AWS.Lambda(options);


It doesn't work because the lambda container cannot access localhost in outside the container, UnknownEndpoint: Inaccessible host: '0.0.0.0'. This service may not be available in the 'us-west-2' region.n.



I understand using the endpoint 0.0.0.0:3001 will not work because that is where the start-lambda setups the lambda endpoint that is accessible to my host and not the same network as within the lambda docker container.



I've managed to get connected to a dynamodb docker container following this question and answer here.



Is there a simple way to do this that I am missing?
Like a hostname of the lambda container that I can call from inside the lambda container, i.e. options.endpoint = "http://lambda:3001/";?










share|improve this question













I am trying to invoke a lambda function locally that invokes another lambda function, also local.



I am using sam local start-lambda -t notificationServiceTemplate.yml --docker-network lambda-local --host 0.0.0.0



I then start my consumer lambda, that invokes the worker lambda,



aws lambda invoke --function-name ImportUsageConsumerLambda --endpoint-url http://127.0.0.1:3001



The consumer lambda function makes the invoke call using these parameters,



if (process.env.STACK_ENVIRONMENT == "local" ) {
options.endpoint = "http://0.0.0.0:3001/";
options.sslEnabled = false;
}
lambda = new AWS.Lambda(options);


It doesn't work because the lambda container cannot access localhost in outside the container, UnknownEndpoint: Inaccessible host: '0.0.0.0'. This service may not be available in the 'us-west-2' region.n.



I understand using the endpoint 0.0.0.0:3001 will not work because that is where the start-lambda setups the lambda endpoint that is accessible to my host and not the same network as within the lambda docker container.



I've managed to get connected to a dynamodb docker container following this question and answer here.



Is there a simple way to do this that I am missing?
Like a hostname of the lambda container that I can call from inside the lambda container, i.e. options.endpoint = "http://lambda:3001/";?







docker aws-lambda docker-compose docker-networking aws-sam-local






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share|improve this question











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asked Nov 10 at 22:25









natemacinnes

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  • localhost is not 0.0.0.0, it's 127.0.0.1. It's not clear why you are using 127.0.0.1 as the endpoint in one place but not the other.
    – Michael - sqlbot
    Nov 11 at 1:37












  • Thanks, that is true. I was using 127.0.0.1 in all places, but in my vain attempts to connect the two I tried using host 0.0.0.0
    – natemacinnes
    Nov 11 at 1:43


















  • localhost is not 0.0.0.0, it's 127.0.0.1. It's not clear why you are using 127.0.0.1 as the endpoint in one place but not the other.
    – Michael - sqlbot
    Nov 11 at 1:37












  • Thanks, that is true. I was using 127.0.0.1 in all places, but in my vain attempts to connect the two I tried using host 0.0.0.0
    – natemacinnes
    Nov 11 at 1:43
















localhost is not 0.0.0.0, it's 127.0.0.1. It's not clear why you are using 127.0.0.1 as the endpoint in one place but not the other.
– Michael - sqlbot
Nov 11 at 1:37






localhost is not 0.0.0.0, it's 127.0.0.1. It's not clear why you are using 127.0.0.1 as the endpoint in one place but not the other.
– Michael - sqlbot
Nov 11 at 1:37














Thanks, that is true. I was using 127.0.0.1 in all places, but in my vain attempts to connect the two I tried using host 0.0.0.0
– natemacinnes
Nov 11 at 1:43




Thanks, that is true. I was using 127.0.0.1 in all places, but in my vain attempts to connect the two I tried using host 0.0.0.0
– natemacinnes
Nov 11 at 1:43

















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