Encountering an issue with executing a command after deployment. I have a node.js project with a script that relies on binaries from node_modules. When I write the command for the script in .ebextensions/.config file, it executes before npm install causing an error (
"node_modules/.bin/some": No such file or directoryAfter much research, I was able to find a solution that worked for me.
I made adjustments to the beanstalk config by including the following command:
commands:
create_post_dir:
command: "mkdir /opt/elasticbeanstalk/hooks/appdeploy/post"
ignoreErrors: true
files:
"/opt/elasticbeanstalk/hooks/appdeploy/post/some_job.sh":
mode: "000755"
owner: root
group: root
content: |
#!/usr/bin/env bash
cd /var/app/current
export PATH=$PATH:$(ls -td /opt/elasticbeanstalk/node-install/node-* | head -1)/bin
npm run some_script
These commands were crucial in creating a folder for post-hooks scripts and adding a bash script. These specified scripts only execute after npm install, which was essential for solving my issue.
Credit goes to this source for providing valuable insights:
To implement a task, first establish a document named .ebextensions/post_tasks.config:
container_commands:
<specific container_command>:
command: "<specified command to execute>"
This operation will occur following the extraction of the code, but prior to its initiation.
An effective strategy would involve utilizing the aws platform hooks feature, allowing you to define postdeploy hooks within your project. Take a look at AWS Platform Hooks for more information.
Within your project's root directory, create a folder named .platform/hooks/postdeploy/
Inside this directory, you can create a script file named xxx-postdeploy-script.sh. These files will be executed after the Elastic Beanstalk platform engine deploys the application and proxy server, serving as the final step in the deployment workflow.
The AWS ebextensions documentation discusses the execution process, specifically noting that all commands are executed before the application version is deployed.
"You can utilize the container_commands key to run commands for your container. These commands are processed in alphabetical order by name. They are executed after the application and web server have been set up, and the application version file has been extracted, but before the application version is actually deployed."
If you redeploy it, it should work because the application is already unpacked. However, this is not a viable long-term solution as each new instance will encounter errors.
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