How Do I Create Function Dependencies?
You are advised to create function dependencies in CentOS 7 or EulerOS.
- If the modules to be installed need dependencies such as .dll, .so, and .a, archive them to a .zip package.
- When you compile a function using Java, dependencies need to be compiled locally. For details about how to add dependencies, see Developing Functions in Java (Using an IDEA Java Project).
Creating a Dependency for a Python Function
Ensure that the Python version of the packaging environment is the same as that of the function. For Python 2.7, Python 2.7.12 or later is recommended. For Python 3.6, Python 3.6.3 or later is recommended.
To install the PyMySQL dependency for a Python 2.7 function in the local /tmp/pymysql directory, run the following command:
pip install PyMySQL --root /tmp/pymysql
After the command is successfully executed, go to the /tmp/pymysql directory:
cd /tmp/pymysql/
Go to the site-packages directory (generally, usr/lib64/python2.7/site-packages/) and then run the following command:
zip -rq pymysql.zip *
The required dependency is generated.
To install the local wheel installation package, run the following command:
pip install piexif-1.1.0b0-py2.py3-none-any.whl --root /tmp/piexif //Replace piexif-1.1.0b0-py2.py3-none-any.whl with the actual installation package name.
Creating a Dependency for a Node.js Function
Ensure that the corresponding Node.js version has been installed in the environment.
To install the MySQL dependency for a Node.js 8.10 function, run the following command:
npm install mysql --save
The node_modules folder is generated under the current directory.
- Linux OS
Run the following command to generate a ZIP package.
zip -rq mysql-node8.10.zip node_modules
The required dependency is generated.
To install multiple dependency packages, create a package.json file first. For example, enter the following content into the package.json file and then run the following command:
{
"name": "test",
"version": "1.0.0",
"dependencies": {
"redis": "~2.8.0",
"mysql": "~2.17.1"
}
}
npm install --save
Do not run the CNPM command to generate Node.js dependencies.
Compress node_modules into a ZIP package. In this way, you can generate a dependency that contains both MySQL and Redis.
For other Node.js versions, you can create dependencies in the way stated above.
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