Hi @Markus77 ,
some of the ways you can do that :
1. By using a lightweight base image as the foundation of your conatiner image.
2. Reduce the number of layers in your container image.
3. You can use build cache strategy which will help the build process go faster.
4. You can use a compiled language and can use reduce the memory the app uses.
Hi.. @Markus77 , You can do things like:
All this thing you can google it.
I hope this is helpful for you.
1 Use image like: registry.access.redhat.com/ubi8/ubi-minimal:latest because the UBI images allow you to share container images with others. Four UBI images are offered: micro, minimal, standard, and init. Pre-build language runtime images and YUM repositories are available to build your applications.
2 Implement resource limits
FROM # registry.access.redhat.com/ubi8/ubi-minimal:latest
WORKDIR # /app path
COPY . . # Copy over all files in the current directory
RUN npm install # Install dependencies
RUN npm build # Run build
1) Reduce number of Layers
2) consolidate mutiple/related RUN /COPY commands together using "&&"
3) Use purposebuilt base image from a trusted registry such as redhat container registry.
@Markus77 As all the other users have said before, the best way to reduce a container image size is by reducing the number of layers.
Here is an example of an image with the same source files and with significant less layers:
Good recommendations here : https://docs.openshift.com/container-platform/4.13/openshift_images/create-images.html
Make sure to use a base image that is closely aligned with needs of your application. All the previous replies would help you with keeping your image footprint small.
With Openshift you can refer to a image with its image stream(alias), that way you still refer to the same image in your registry and not be concerned about updates to your image that would cause a problem for your apps. Of course, you would want to pay attention to security and vulnerability that the later updates fix for your base image(s).
Hope this helps!
Good morning, Dear @Markus77
Optimizing a container image in OpenShift is an important task to improve the performance and efficiency of your applications.
Here are some tips on how to do it:
Use a suitable base image: it is important to choose a base image that is suitable for your application. A smaller and lighter base image can improve performance and reduce loading time.
Minimize image layers: The fewer layers the image has, the faster it will load. You can reduce the number of layers by removing unnecessary files and combining commands into a single layer.
Use the layer cache: OpenShift uses a layer cache to speed up image construction. Make sure your images are configured to use the layer cache.
Use image optimization tools: There are several tools available to optimize container images, such as Docker Slim and Kaniko. These tools can reduce image size and improve performance.
Use cached build strategies: If you are building container images from source code, you can use cached build strategies to reduce build time. This involves caching the results of previous builds to avoid having to recompile all the code each time.
I hope you find these tips useful for optimizing your container images in OpenShift - good luck!
A container image in OpenShift can be optimized in a number of ways to increase performance, decrease size, and boost overall effectiveness. The following are some strategies you can use:
These methods can help you optimize your container images in OpenShift, which will boost performance, use fewer resources, and be more effective all around.
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