Aws-sam-cli: Assistance troubleshooting sam local invoke

[oldnerd]

I'm trying to use sam local invoke to simulate an S3 event. When I try and run the sam local invoke command "sam local invoke -e event.json --debug-port 5858 ExampleFunction"

I get an error message
"unable to use container host config override file from '$HOME/.config/aws-sam-local/container-config.json': HOME env variable is not set"

Where should the HOME environment variable be set? I assume I'm doing something silly....

[PaulMaddox]

Hi, @oldnerd - are you running this on Windows?

Can you post the full log? That message is purely informational, and shouldn't prevent SAM Local running in any way.

[gkamdar]

I had the same issue. I set the HOME env on Windows. Now I get error related to unrecognized volume.
I am running on Windows 7 with Docker Toolbox for Windows installed.
Here is the error message:
C:\Users\gaurav_kamdar\go\src\github.com\awslabs\aws-sam-local\test\templates\sam-official-samples\hello_world>sam local invoke "HelloWorld" -e event.json
2017/08/24 13:26:44 Successfully parsed template.yaml (version 2010-09-09)
←[34mINFO←[0m[0000] Unable to use system certificate pool: crypto/x509: system root pool is not available on Windows
2017/08/24 13:26:44 Connected to Docker 1.28
←[34mINFO←[0m[0000] Unable to use system certificate pool: crypto/x509: system root pool is not available on Windows
2017/08/24 13:26:44 Fetching lambci/lambda:nodejs4.3 image for nodejs4.3 runtime...
nodejs4.3: Pulling from lambci/lambda
Digest: sha256:edc847ee95644b772b82c81202b0e5f9279f369bac2d5df74b4e9ce67d709b63
Status: Image is up to date for lambci/lambda:nodejs4.3
2017/08/24 13:26:44 Invoking index.handler (nodejs4.3)
2017/08/24 13:26:44 Could not invoke function: Error response from daemon: invalid bind mount spec "C:/Users/gaurav_kamdar/go/src/github.com/awslabs/aws-sam-local
/test/templates/sam-official-samples/hello_world:/var/task:ro": invalid volume specification: 'C:/Users/gaurav_kamdar/go/src/github.com/awslabs/aws-sam-local/test
/templates/sam-official-samples/hello_world:/var/task:ro'

[tulis]

Any update on this? Where is the exact location to set $HOME variable? I'm running Windows 10 build 16281.

$ sam local invoke helloworld -e .\event-file.json
2017/09/17 20:41:16 Successfully parsed template.yml
2017/09/17 20:41:16 Connected to Docker 1.30
2017/09/17 20:41:16 Fetching lambci/lambda:nodejs6.10 image for nodejs6.10 runtime...
nodejs6.10: Pulling from lambci/lambda
cf9c84c367d8: Pull complete
aeeaf5aea2af: Pull complete
a0458750b065: Pull complete
4315c1ddcefe: Pull complete
Digest: sha256:b9a57b98dcfe226cac3fb0b8329594eefb62ba7089fa27cf8ac968e5736cc04a
Status: Downloaded newer image for lambci/lambda:nodejs6.10
2017/09/17 20:43:46 Invoking index.handler (nodejs6.10)
2017/09/17 20:43:46 unable to use container host config override file from '$HOME/.config/aws-sam-local/container-config.json': HOME env variable is not set

@PaulMaddox I just read through code a bit, seems like it will return early if it cannot find HOME variable.
https://github.com/awslabs/aws-sam-local/blob/28eacbdd299917b2cceeb9444fe22bd57d33d97d/runtime.go#L243-L246

[sanathkr]

I need to grab a Windows machine to debug. But looking at the code, it just prints and skips the override if HOME isn't present - https://github.com/awslabs/aws-sam-local/blob/develop/runtime.go#L247

[ashwinbiyani]

Getting same error on windows 10 with docker toolbox.
S3 event Error:

C:\Users\bashwin\workspace>sam local invoke --event event.csv "ProcessorFunction"
A newer version of the AWS SAM CLI is available!
Your version: 0.2.0
Latest version: 0.2.2
See https://github.com/awslabs/aws-sam-local for upgrade instructions

2017/10/05 12:02:56 Successfully parsed template.yml
INFO[0001] Unable to use system certificate pool: crypto/x509: system root pool is not available on Windows
2017/10/05 12:02:56 Connected to Docker 1.32
INFO[0001] Unable to use system certificate pool: crypto/x509: system root pool is not available on Windows
2017/10/05 12:02:56 Fetching lambci/lambda:java8 image for java8 runtime...
java8: Pulling from lambci/lambda
Digest: sha256:5e1f24ebf98bf010e94e8eb7d3eeec3d24d2a7d97a458756dda27134de526aa2
Status: Image is up to date for lambci/lambda:java8
2017/10/05 12:03:00 Invoking com.manthan.realtime.restresource.LambdaKPIResourceHandler (java8)
2017/10/05 12:03:00 Could not invoke function: Error response from daemon: invalid bind mount spec "C:/Users/bashwin/workspace:/var/task:ro": invalid volume specification: 'C:/Users/bashwin/workspace:/var/task:ro'

API Gateway Error:

Goes fine with mounting but the url 127.0.0.1:3000 gives below error
{ "message": "Internal server error" }

if i put any sysout it is not printing ...

Did anyone got it working? not able to proceed any further. Any help is much appreciated

[jofo8948]

Also experiencing the same issue. Would appreciate assistance in getting over this roadblock.

[PaulMaddox]

Fix incoming soon!

[zhangzhx]

I'm having the same issue. Looks like SAM Local is referencing the $HOME environment variables on Windows for the home directory, while in some cases, this environment variables are not set.

[kaarthikeyansp]

I had the same issue, I added HOME in environment variable and pointed it to "C:\Users\"

[ryaneliseislalom]

I tried:
SET HOME=%USERPROFILE%
This got a step further, then failed with:
Could not invoke function: Error response from daemon: invalid volume specification

[PaulMaddox]

We have a fix for this coming. The development work is done and currently awaiting code review (see the above referenced pull request).

[PaulMaddox]

This fix is included in the latest release (v0.2.3).
Use npm update -g aws-sam-local to upgrade.

[red8888]

is this supposed to be fixed? I just installed sam local today on win10 and getting this same error.

[ryaneliseislalom]

Did you npm update as described above? Are you using 0.2.3 or newer?

[christian-boks]

I just installed version 0.2.6 and I get the same error on Win10.
I used the workaround suggested by kaarthikeyansp above, and the error went away.

[rogersp]

Same exact scenario and result as @christian-boks here.

[eetay]

Sorry to budge in... thought you might like to know I had same problem (possibly different scenario), upgrading docker + docker-machine solved this particular problem. Cheers

[lucasdluengo]

I still get the same error on 0.2.10

[rchatsiri]

Error above same Aws-sam-local version 0.2.11

Mounting serviceless.instances.EC2InternalHandler::handleRequest (java8) at http://127.0.0.1:3000/{proxy+} [OPTIONS GET HEAD POST PUT DELETE PATCH]

You can now browse to the above endpoints to invoke your functions.
You do not need to restart/reload SAM CLI while working on your functions,
changes will be reflected instantly/automatically. You only need to restart
SAM CLI if you update your AWS SAM template.

2018/04/24 18:52:23 Invoking serviceless.instances.EC2InternalHandler::handleRequest (java8)
2018/04/24 18:52:23 Mounting /c/Users/serviceless as /var/task:ro inside runtime container
2018/04/24 18:52:23 unable to use container host config override file from '$HOME/.config/aws-sam-local/container-config.json': HOME env variable is not set
START RequestId: dda52335-90cf-4d24-9b3f-fc59f12e4d52 Version: $LATEST
java.lang.ClassNotFoundException: serviceless.instances.EC2InternalHandler
        at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:348)

[ShahDevanshi]

I also still see same error on windows 10. I set HOME as environment variable so that particular error went away but now i am getting this Could not invoke function: Error response from daemon: error while creating mount source path /host_mnt/<PATH> : mkdir /host_mnt/c: file exists

[ms-clovis]

Bump. Sam version : SAM CLI, version 0.14.2, I set home variable from terminal, I am an administrator and the command prompt is running as an administrator (Windows 10 Pro, unfortunately Docker Toolbox as Hyper-V is broken). The error is:

Fetching lambci/lambda:nodejs8.10 Docker container image......
2019-04-15 11:02:51 Mounting c:\Intellij_Projs\sam-app\hello-world as /var/task:ro inside runtime container
START RequestId: dd83a1f8-6b34-16e8-81b6-23598da70949 Version: $LATEST
Unable to import module 'app': Error
 at Function.Module._resolveFilename (module.js:547:15)
at Function.Module._load (module.js:474:25)
at Module.require (module.js:596:17)
at require (internal/module.js:11:18)

"errorMessage":"Cannot find module '/var/task/app'","errorType":"Error","stackTrace":["Function.Module._load (module.js:474:25)","Module.require (module.js:596:17)","require (internal/module.js:11:18)"]}

this is on simple hello-world JS application produced by sam init. In case I am doing something wrong, I ran sam init. Changed into the directory sam-app and ran the command: sam local invoke HelloWorldFunction --event event.json

Thanks in advance

[sanathkr]

@ms-clovis Did you run sam build before invoke? Looks like Docker worked, but it is not finding the right files.

[ms-clovis]

Sanathkr, yes ran build first

To reiterate this is is running docker server (using docker-machine) and this image:
Name type state URL Docker
box * virtualbox Running tcp://192.168.99.100:2376 v18.09.5

[ms-clovis]

bump

[mlh-hoangnh]

I still get "unable to use container host config override file from '$HOME/.config/aws-sam-local/container-config.json': HOME env variable is not set" after get request "127.0.0.1:3000/ping" when use "sam local start-api --template sam.yaml".

This is my log:
"2020/02/28 10:22:06 Invoking com.amazonaws.serverless.proxy.struts2.Struts2LambdaHandler::handleRequest (java8)
2020/02/28 10:22:07 WARNING: No AWS credentials found. Missing credentials may lead to slow startup times as detailed in https://github.com/awslabs/aws-sam-local/issues/134
2020/02/28 10:22:07 Mounting /c/Users/huyho/OneDrive/Documents/Java Project/aws-serverless-struts2-archetype as /var/task:ro inside runtime container
2020/02/28 10:22:07 unable to use container host config override file from '$HOME/.config/aws-sam-local/container-config.json': HOME env variable is not set
2020/02/28 10:22:07 Error invoking java8 runtime: Error: No such image: lambci/lambda:java8 "

I have followed the guide in README.md. Please help me.