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Command-line options available

Modes of operation

There are currently four modes of operation for GGP and therefore three sets of command-line options. Each of the documents below describes the options for the different modes.

Examples

Dislike dry and dense CLI docs? Check out some examples below.

Want an example added? Open a Github issue and describe what you're looking for.

Deployment examples

Note: You will need the deployments and functions directories from the AWS Labs Greengrass functions repo.

Remember: Any references to GGP in commands in this documentation must be replaced with the appropriate command for your environment (e.g. ./ggp.sh, java -jar ..., etc.)

Deploy or redeploy an empty group (no functions) and create a bootstrap script

Note: After the bootstrap script is used or the Greengrass Core is running you can omit the --script option

X86_64:

GGP -g test-group -a X86_64 -d deployments/empty.conf --script

ARM32:

GGP -g test-group -a ARM32 -d deployments/empty.conf --script

This will create a group called test-group, if it doesn't exist already, and set the group configuration so there are no functions deployed. It will also output a bootstrap script named build/gg.test-group.sh that can be used to bootstrap a Raspberry Pi running Raspbian (if ARM32 architecture is specified), a system running Ubuntu, or a system running Amazon Linux.

Redeployments of an existing group will happen without re-running the bootstrap script.

Deploy a group with the Python Hello World function

X86_64:

GGP -g test-group -a X86_64 -d deployments/python3-hello-world.conf --script

ARM32:

GGP -g test-group -a ARM32 -d deployments/python3-hello-world.conf --script

Redeploy a group with the Python Hello World function

All architectures:

GGP -g test-group -d deployments/python3-hello-world.conf

Redeployments of an existing group will happen without re-running the bootstrap script and therefore the architecture does not need to be specified.

Create a Docker container for a group deployment

GGP -g test-group -a X86_64 -d deployments/python3-hello-world.conf -c

This will create a local Docker image with the tag greengrass:test-group. This container is based on the official Greengrass Docker image and currently only supports X86_64. It must be run in privileged mode.

Query examples

List the Lambda functions in a group

GGP -g test-group --query-group --list-functions

List the Lambda functions in a group

GGP -g test-group --query-group --list-subscriptions

List the Lambda devices in a group

GGP -g test-group --query-group --list-devices

Update examples

Add a new device called test-device to the group

GGP -g test-group --update-group --add-device test-device

This will add the device to the group and redeploy it. It will place the private key information in build/test-device.pem.key and the public signed certificate in build/test-device.pem.crt

Add an existing device called test-device to the group

GGP -g test-group --update-group --add-device test-device

This will add the device to the group and redeploy it. It will place the private key information in build/test-device.pem.key and the public signed certificate in build/test-device.pem.crt

Add a subscription that sends messages from a device to the cloud

This subscription will relay all messages from test-device to the cloud on the test-device-message/# topic hierarchy.

GGP -g test-group --update-group --add-subscription --subscription-source test-device --subscription-target cloud --subscription-subject test-device-messages/#

Add a subscription that sends messages from the cloud to a device

This subscription will relay all messages from the cloud on the test-device-inbound/# topic hierarchy to test-device.

GGP -g test-group --update-group --add-subscription --subscription-source cloud --subscription-target test-device --subscription-subject test-device-inbound/#

Remove a subscription from a device

GGP -g test-group --update-group --remove-subscription --subscription-source test-device --subscription-target cloud --subscription-subject test-device-messages/#

Remove a subscription from a function

GGP -g test-group --update-group --remove-subscription --subscription-source HelloWorldPython:PROD --subscription-target cloud --subscription-subject test-group_Core/python/hello/world

Add an existing AWS Lambda function to a group

This will add the function ExistingLambdaName to the specified group with the alias PROD. This alias must not exist already.

GGP -g test-group --update-group --add-function ExistingLambdaName --function-alias PROD

Remove a Lambda function from a group

This will remove the function ExistingLambdaName with the alias PROD from the specified group. It will also delete the alias in AWS Lambda.

GGP -g test-group --update-group --remove-function ExistingLambdaName --function-alias PROD

Test examples

Test a local ARM32 device with the group name pi, username pi, at IP address 192.168.1.3 and store the results in the temp directory

GGP --test-group -g pi -a ARM32 -u pi -o temp --dut 192.168.1.3

Hardware security integration (HSI) examples

Bootstrap a Raspberry Pi to use Greengrass HSI with SoftHSM2 and then deploy it

Step 1 - bootstrap HSI and get the HSI configuration and certificate ARN:

GGP --hsi-bootstrap --vendor SoftHSM2 --target pi@192.168.1.5

... lots of output ...

If you are using GGP your HSI options will be:

  --hsi P11Provider=/usr/lib/arm-linux-gnueabihf/softhsm/libsofthsm2.so,slotLabel=greengrass,slotUserPin=1234,pkcs11EngineForCurl=pkcs11 --certificate-arn arn:aws:iot:REGION:ACCOUNT_ID:cert/FINGERPRINT

SUCCESS: arn:aws:iot:REGION:ACCOUNT_ID:cert/FINGERPRINT
Finished running HSI bootstrap script
HSI successfully bootstrapped. ARN for the certificate is: arn:aws:iot:REGION:ACCOUNT_ID:cert/FINGERPRINT

Step 2 - bootstrap Greengrass with the launch command and the HSI options:

GGP -d deployments/all-hello-world.conf --launch pi@192.168.1.5 -a ARM32 --hsi P11Provider=/usr/lib/arm-linux-gnueabihf/softhsm/libsofthsm2.so,slotLabel=greengrass,slotUserPin=1234,pkcs11EngineForCurl=pkcs11 --certificate-arn arn:aws:iot:REGION:ACCOUNT_ID:cert/FINGERPRINT

... lots of output ...

Running bootstrap script on host in screen, connect to the target host [pi@192.168.1.5] and run 'screen -r' to see the progress

Step 3 - monitor the deployment:

  • Connect to the host via SSH or mosh
  • Run screen -r greengrass

Bootstrap a Raspberry Pi to use Greengrass HSI with Zymbit and then deploy it

Step 1 - use HSI bootstrapping to install the Zymbit tools:

GGP --hsi-bootstrap --vendor Zymbit --target pi@192.168.1.5

... lots of output ...

HSI bootstrap failed for the following reason [ERROR: zk_pkcs11-util not found, running Zymbit installer. Re-run the HSI bootstrap after the device reboots.]

Step 2 - re-run the HSI bootstrapping after the device reboots:

GGP --hsi-bootstrap --vendor Zymbit --target pi@192.168.1.5

... lots of output ...

If you are using GGP your HSI options will be:

  --hsi P11Provider=/usr/lib/libzk_pkcs11.so,slotLabel=greengrass,slotUserPin=1234,pkcs11EngineForCurl=zymkey_ssl --certificate-arn arn:aws:iot:REGION:ACCOUNT_ID:cert/FINGERPRINT

SUCCESS: arn:aws:iot:REGION:ACCOUNT_ID:cert/FINGERPRINT
Finished running HSI bootstrap script
HSI successfully bootstrapped. ARN for the certificate is: arn:aws:iot:REGION:ACCOUNT_ID:cert/FINGERPRINT

Step 3 - bootstrap Greengrass with the launch command and the HSI options:

GGP -d deployments/all-hello-world.conf --launch pi@192.168.1.5 -a ARM32 --hsi P11Provider=/usr/lib/libzk_pkcs11.so,slotLabel=greengrass,slotUserPin=1234,pkcs11EngineForCurl=zymkey_ssl --certificate-arn arn:aws:iot:REGION:ACCOUNT_ID:cert/FINGERPRINT

... lots of output ...

Running bootstrap script on host in screen, connect to the target host [pi@192.168.1.5] and run 'screen -r' to see the progress

Step 4 - monitor the deployment:

  • Connect to the host via SSH or mosh
  • Run screen -r greengrass