[radek@c8k15 minikube]$ host archive.ubuntu.com
archive.ubuntu.com has address 91.189.88.152
archive.ubuntu.com has address 91.189.88.142
archive.ubuntu.com has IPv6 address 2001:67c:1562::18
archive.ubuntu.com has IPv6 address 2001:67c:1360:8001::23
archive.ubuntu.com has IPv6 address 2001:67c:1562::15
archive.ubuntu.com has IPv6 address 2001:67c:1360:8001::24

[radek@c8k15 minikube]$ make buildroot-image
docker build  -t gcr.io/k8s-minikube/buildroot-image -f deploy/iso/minikube-iso/Dockerfile deploy/iso/minikube-iso/
Sending build context to Docker daemon  231.4kB
Step 1/6 : FROM ubuntu:18.04
 ---> 4e5021d210f6
Step 2/6 : RUN apt-get update 	&& apt-get install -y apt dpkg apt-utils ca-certificates 	&& apt-get upgrade -y 	&& apt-get install -y 		build-essential 		git 		wget 		cpio 		python 		unzip 		bc 		gcc-multilib 		automake 	libtool 		gnupg2 		p7zip-full 		locales 		rsync 		dumb-init 		golang-go 		libpcre3-dev && rm -rf /var/lib/apt/lists/*
 ---> Running in fdf5f91a7979
Err:1 http://security.ubuntu.com/ubuntu bionic-security InRelease
  Temporary failure resolving 'security.ubuntu.com'

Err:2 http://archive.ubuntu.com/ubuntu bionic InRelease
  Temporary failure resolving 'archive.ubuntu.com'
Err:3 http://archive.ubuntu.com/ubuntu bionic-updates InRelease
  Temporary failure resolving 'archive.ubuntu.com'
Err:4 http://archive.ubuntu.com/ubuntu bionic-backports InRelease
  Temporary failure resolving 'archive.ubuntu.com'
Reading package lists...
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/bionic/InRelease  Temporary failure resolving 'archive.ubuntu.com'
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/bionic-updates/InRelease  Temporary failure resolving 'archive.ubuntu.com'
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/bionic-backports/InRelease  Temporary failure resolving 'archive.ubuntu.com'
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/bionic-security/InRelease  Temporary failure resolving 'security.ubuntu.com'
W: Some index files failed to download. They have been ignored, or old ones used instead.
Reading package lists...
Building dependency tree...
Reading state information...
Package apt-utils is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
However the following packages replace it:
  apt

Package ca-certificates is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'apt-utils' has no installation candidate
E: Package 'ca-certificates' has no installation candidate
The command '/bin/sh -c apt-get update 	&& apt-get install -y apt dpkg apt-utils ca-certificates 	&& apt-get upgrade -y 	&& apt-get install -y 		build-essential 		git 		wget 		cpio 		python 		unzip 		bc 		gcc-multilib 		automake 	libtool 		gnupg2 		p7zip-full 		locales 		rsync 		dumb-init 		golang-go 		libpcre3-dev && rm -rf /var/lib/apt/lists/*' returned a non-zero code: 100
make: *** [Makefile:503: gcr.io/k8s-minikube/buildroot-image] Error 100