Use minimal base image for Network Policy agent; update Golang version to 1.21.7 #212
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Issue #, if available:
#109
Description of changes:
This PR modifies the Network Policy agent Dockerfile to use
eks-distro-minimal-base-glibcas the base image. This minimal image, along with removing the libraries that were installed usingyum, significantly decreases the size of the container image. My personal build showed a decrease from ~290MB to ~38MB.A smaller container image means faster image pulls and a smaller surface area for CVEs.
For the libraries that were installed in the container filesystem using
yum, such aslibbpf-devel, it turns out that none of these are needed at runtime. The object files created in thebpfbuilderstage already have everything they need statically linked.Also, I updated the Golang builder image to Golang 1.21.7.
By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.