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Red Hat OpenShift4 on Laptop, ubuntu:latest

はじめに

Red Hat からリリースされているOpenShift4
そろそろ試してみようかなと思いチャレンジしてみます!
(うまくいってません(笑))

環境

  • Docker for Windows
  • Ubuntu:lastest on docker

Prerequisites

OSに関する要求事項。ハードルがかなり上がってます(笑)
dockerでできるのかなぁ!?

CodeReady Containers requires the following system resources in order to run OpenShift:
- 4 virtual CPUs (vCPUs)
- 8 GB of memory
- 35 GB of storage space

ちなみにdockerにしているのは、うちのNotePCをWindows10 HomeからWindows10 Proにアップグレードし、Hyper-V入れてDocker for Windowsを入れたら、Hyper-VもVMwareもVirtualBoxも動作しなくなっちゃったため
原因が良く分からないけど、HyperVisorが複数入っているのが原因っぽい

Dockerfile

こんな感じでまとめました。
RUNを細切れにしているのはcacheを効かせるためです(笑)

ちなみに『Getting started with Red Hat CodeReady Containers』に記載のものとは以下を変えています。

1.2. Installing CodeReady Containers

マニュアル上ではlibvirtd groupになっているけどもそんなグループはないlibvirt groupに変更

  1. On Debian or Ubuntu, perform the following steps: a. Add your user to the libvirtd group:
$ sudo usermod -aG libvirtd $(whoami)

b. Update your current session to apply the group change:

$ newgrp libvirtd
Dockerfile
FROM ubuntu:latest

ENV DEBIAN_FRONTEND=noninteractive \
    USER_ID=minishift \
    GROUP_ID=libvirt

RUN ln -sf /usr/share/zoneinfo/Japan /etc/localtime

RUN apt-get -y update

RUN apt -y install curl qemu-kvm libvirt-daemon libvirt-daemon-system network-manager

RUN apt-get -y autoremove && \
    apt-get -y clean

RUN service network-manager start

ARG DOCKER_UID=1001
ARG DOCKER_USER=minishift
ARG DOCKER_PASSWORD=minishift
RUN useradd -m \
  --uid ${DOCKER_UID} --groups sudo --shell /bin/bash ${DOCKER_USER} \
  && echo ${DOCKER_USER}:${DOCKER_PASSWORD} | chpasswd
RUN usermod -aG ${GROUP_ID} ${DOCKER_USER}

RUN curl -sS https://mirror.openshift.com/pub/openshift-v4/clients/crc/latest/crc-linux-amd64.tar.xz -o /tmp/crc-linux-amd64.tar.xz

RUN xz -dc /tmp/crc-linux-amd64.tar.xz | tar xfv - && \
    mv crc-linux-*/crc /usr/local/bin/crc

USER ${DOCKER_USER}

RUN newgrp ${GROUP_ID} && \
    crc config set skip-check-user-in-libvirt-group true

WORKDIR /home/${DOCKER_USER}
EXPOSE 443

RUN crc setup --help
RUN crc setup

CMD [ "crc", "start" ]
docker-compose.yaml
version: '3.7'
services:
  minishift:
    container_name: minishift
    build: ./
    image: minishift:4.1
    restart: always

docker-compose build

Buildしてみるとエラーが発生(汗

NetworkManager is required. Please make sure it is installed and running manually
いやインストールしているのはubuntuなんですけど…
NetworkManagerじゃなくってnetwork-managerでは!? Red Hatさん

C:\Git\minishift4>docker-compose build

:

Step 20/22 : RUN crc setup --help
 ---> Running in 362e5cad33ed
 setup hypervisor to run the cluster

Usage:
  crc setup [flags]

Flags:
  -h, --help               help for setup
  -d, --vm-driver string   The driver to use for the CRC VM. Possible values: [libvirt virtualbox] (default "libvirt")

Global Flags:
  -f, --force              Forcefully perform an action
      --log-level string   log level (e.g. "debug | info | warn | error") (default "info")
Removing intermediate container 362e5cad33ed
 ---> c71b335e661b
Step 21/22 : RUN crc setup
 ---> Running in b00e42e4446a
level=info msg="Checking if NetworkManager is installed"
level=info msg="Checking if NetworkManager service is running"
level=fatal msg="NetworkManager is required. Please make sure it is installed and running manually"
ERROR: Service 'minishift' failed to build: The command '/bin/sh -c crc setup' returned a non-zero code: 1

じゃあFedoraでやってみますかねぇ~(笑)

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