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A docker container is not just your code. It's basically the entire userspace portion of an OS plus your code.
by TheCoelacanth 7y ago
A docker container is not just your code. It's basically the entire userspace portion of an OS plus your code.
- scarface74 7y agoIt’s not any more “operationally complex”. The fact that Docker containers include the OS doesn’t make it more complex to run. My Docker file that I used to convert my Node/Express API that was running in lambda consisted of... - setting environment variables (I had to do the same thing in my CF template for lambda) - retrieving the Node Docker image (one line of code - I had to specify one line of code in my CF template with lambda to specify that is was using the Node runtime) - copying the files from the directory to the container (as opposed to specifying the locsl path of the source code in the CF Template) - Specifying the Docker Run command (as opposed to specifying the lambda handler). - running “Docker build” as opposed to “CloudFormation package”. How it does it is an implementation detail. In fact, if you use lambda layers, it’s almost equivalent to building Docker images.