• IMPORTANT -  For the node recipe installation with the method described above I modified also classes/npm.bbclass file as following.

classes/npm.bbclass, line 291.

[-] INSTALL_FLAGS="--offline --only=production --no-package-lock --verbose \

--arch=${NPM_ARCH} --target_arch=${NPM_ARCH}"

[+] INSTALL_FLAGS="-production --no-package-lock --verbose \

--arch=${NPM_ARCH} --target_arch=${NPM_ARCH} ${ADD_FLAGS}"

• I have tried also to add in diferent combinations other parameters as below in bb file without success:

SRC_URI = "git://github.com/my-node-repo-link"

SRCREV = "my-node-version-git-commit"

DEBIAN_DEPENDS = "openssl, ca-certificates"

ADD_FLAGS="--unsafe-perm --no-audit"

INSANE_SKIP_${PN} += "textrel"

do_install() {

install -d ${D}/home/root/.node-red/

}

• Boot an IOT (with a version of NodeJS / NodeRED equals to those used in the image building process) and open a command terminal with SSH.

• Choose the node you want to install and save package name (e.g. node-red-contrib-opcua) and package version (e.g.  0.2.58).

• On an empty folder install the selected node by using the command:

npm install --global-style node-contrib-opcua

package.json --> rename to ---> npm-shrinkwrap.json

node_modules

• On Building Machine, under meta-iot2050/recipes-app folder create a folder with selected package name and generate the respective <PackageName>_<version>.bb file:

cd meta-iot2050/recipes-app

mkdir node-red-contrib-opcua

cd node-red-contrib-opc-ua

mkdir files

nano node-red-contrib-opc-ua_0.2.58.bb

• Now add the file npm-shrinkwrap.json generated before to files folder. The new recipe folder now looks like below:

+ node-red-contrib-opcua

+++ files

+++++++ npm-shrinkwrap.json

+++ node-red-contrib-opcua_0.2.58.bb

• Edit file node-red-contrib-opcua_0.2.58.bb and paste the following content:

SUMMARY = "node red opcua"

# WARNING: the following LICENSE and LIC_FILES_CHKSUM values are best guesses - it is

# your responsibility to verify that the values are complete and correct.

LICENSE = "MIT & BSD-3-Clause & BSD-2-Clause & ISC & Apache-2.0"

LIC_FILES_CHKSUM = "file://LICENSE.md;md5=f2855717eed783b240d92baadef2c81f"

inherit npm

NPMPN = "node-red-contrib-opcua"

NPM_LOCAL_INSTALL_DIR = "/home/root/.node-red"

ADD_FLAGS=""

• Edit recipes-core/images/iot2050-image-example.bb file by adding under IMAGE_INSTALL variable the new node package recipe name:

IMAGE_INSTALL += " \

expand-on-first-boot \

sshd-regen-keys \

regen-rootfs-uuid \

customizations-example \

switchserialmode \

iot2050setup \

tcf-agent \

mraa \

node-red \

node-red-gpio \

node-red-contrib-opcua "   # <------Add Here the new recipe name

• Start kas process on specific descriptor yml file:

./kas-docker --isar build kas-iot2050-example.yml