Casablanca Progress and Milestones

The CIA project has met a number of milestones:

-Contributed code changes to the VNSDK and produced an arm container image. -Migrated OOF/HAS project to ONAP Normative image which reduced the image size by 70%. -Developed, reviewed and published 8 general guidelines for building container images -Developed, reviewed, and published 12 container build instructions -Developed, reviewed, and published 6 image minimization guidelines to reduce image footprint -Developed and coded three tutorials to educate ONAP projects and PTLs on how to apply image minimization guidelines. -Defined a generic build process for ONAP that will be container images-friendly. -Defined a set of platform-agnostic ONAP Normative Base Images that will contribute to the minimization of ONAP container images’ footprint

-Analyzed 150 Dockerfiles and developed a migration path from the 53 large base images to 21 smaller, normative, platform-agnostic base images. -Performed an assessment of the SO project and identified opportunities for improvement.

Container Image Minimization Tutorials

Source files

Tutorial documentation https://git.onap.org/oparent/cia/tree/demos/min/README.md
Base image guideline https://git.onap.org/oparent/cia/tree/demos/min/base-image
Command chaining guideline https://git.onap.org/oparent/cia/tree/demos/min/cmd-chain
Context guideline https://git.onap.org/oparent/cia/tree/demos/min/context

Description

The container build processes used by ONAP projects generates container images that are larger than they should be. As a result, the develop-build-test-deploy workflow takes a long time and consumes a lot of resources.

The ONAP community has identified this delay as one of the main pain points.

Furthermore, large image size has a detrimental effect on deployability. In fact,operators consider image minimization as one of the main priorities.

Usage

The image minimization tutorials introduce a set of guidelines for the minimization of container images.

Users may choose to simply read through the tutorial or run the experiments; which is highly recommended.

Each tutorial guides the user through an experiment that demonstrates, in a tangible manner, the benefits of following each guideline.

The expectation is that, with each experiment, userss will gain insight into the value of the guideline and the positive impact on reducing ONAP’s footprint.