2022
https://kubernetes.io/blog/2022/03/31/ready-for-dockershim-removal/

small-img-build
https://cloudplatform.googleblog.com/2018/04/Kubernetes-best-practices-how-and-why-to-build-small-container-images.html

docker ps --format 'table {{.Image}}t{{.Status}}'
    IMAGE           STATUS
    gcr.io/...      Up 13 hours
    ...

interesting containers:
kubectl get pods --namespace=kube-system

minicube pods:
kube-addon-manager-minikube   1/1       Running   1          3d
kube-dns-910330662-4tt1g      3/3       Running   3          3d
kubernetes-dashboard-9tlvz    1/1       Running   2          3d

other pods:

fluentd-gcp
    cluster logs -> Google Cloud Logging service
node-problem-detector
    detect hw and kernell-layer issues
rescheduler
    make sure critical components are always running
    (throw out less critical pods if needed)
glbc
    GoogleCloud Layer 7 LB using new Ingress capabilities
kube-addon-manager
    various addons manager. Periodically apply any changes to
    /etc/kubernetes/addons folder
etcd-empty-dir-cleanup
    Util to cleanup empty keys in etcd
kube-controller-manager
    misc cluster functions like replication, monitoring, management, new
    nodes discovery
kube-apiserver
    REST API server
kube-scheduler
    scheduler
etcd
    distributed KV store of CoreOS
pause
    pod infrastructure container, used to set up and hold networking
    namespace and resource limits for each pod
kube-dns
kubedns
    DNS and service discovery plumbing
kube-dnsmasq
    another container for DNS caching
dnsmasq-metrics
    metric reporting for DNS services in cluster
l7-defaultbackend
    default backend for handling the GCE L7 LB and Ingress
kubernetes-dashboard-xxxx
kube-proxy
heapster
heapster-v1.2.0-xxxx
heapster_grafana
heapster_influxdb
monitoring-influx-grafana
kube-proxy-kubernetes-minion-group-xxxx

cluster-proportional-autoscaler
addon-resizer
exechealthz
    Health checks on the pods