Redhat Openshift 单机版安装指南 CRC4.6
Red Hat CodeReady Containers(CRC) 是一个最小的 OpenShift 4 本地集群环境,可以安装到笔记本电脑，
无须专用服务器,这点比OKD4.6要简单得多.
安装总共分3步:
第一步:下载安装文件 提供3种平台的安装文件,(Windows, Linux, Mac)
第二步：crc setup
第三步：crc start
CRC 4.6 安装的硬件条件:
• 4 核CPUs (vCPUs)
• 9.664 GB 可用内存
• 35 GB 磁盘空间
CRC 4.6 安装的软件条件：
Windows
Windows 10 Update(1709)或者更新版本，但是不包括 Windows 10 家庭版.
macOS
• macOS 10.12 Sierra或者更新版
Linux
•CRC支持 Red Hat Enterprise Linux/CentOS 7.5 或者更新版
• Ubuntu 18.04 LTS 和 Debian 10 没有官方支持
我安装的环境是这样的：Centos 7.9 + E3-1220 + 16GB内存 + 500GB硬盘
podman 工具可用于替换docker, 有点是不用常驻内存了. 以下是常见错误, 修改配置文件就可以了.
[xinyong@localhost containers]$ podman info
cannot clone: Invalid argument
user namespaces are not enabled in /proc/sys/user/max_user_namespaces
Error: could not get runtime: cannot re-exec process
vi /etc/containers/storage.conf
# Temporary storage location
runroot = "/home/xinyong/podstorage"
#/var/run/containers/storage"
# Primary Read/Write location of container storage
graphroot = "/home/xinyong/podstorage"
[root@localhost containers]# podman info
host:
BuildahVersion: 1.11.5
CgroupVersion: v1
Conmon:
package: conmon-2.0.8-1.el7.x86_64
path: /usr/bin/conmon
version: 'conmon version 2.0.8, commit: f85c8b1ce77b73bcd48b2d802396321217008762'
Distribution:
distribution: '"centos"'
version: "7"
MemFree: 200237056
MemTotal: 16825749504
OCIRuntime:
name: runc
package: runc-1.0.0-67.rc10.el7_8.x86_64
path: /usr/bin/runc
version: 'runc version spec: 1.0.1-dev'
SwapFree: 8398041088
SwapTotal: 8455712768
arch: amd64
cpus: 4
eventlogger: journald
hostname: localhost.localdomain
kernel: 3.10.0-1160.11.1.el7.x86_64
os: linux
rootless: false
uptime: 8h 32m 54.63s (Approximately 0.33 days)
registries:
blocked: null
insecure: null
search:
- registry.access.redhat.com
- registry.redhat.io
- docker.io
store:
ConfigFile: /etc/containers/storage.conf
ContainerStore:
number: 0
GraphDriverName: overlay
GraphOptions: {}
GraphRoot: /home/xinyong/podstorage
GraphStatus:
Backing Filesystem: xfs
Native Overlay Diff: "true"
Supports d_type: "true"
Using metacopy: "false"
ImageStore:
number: 0
RunRoot: /home/xinyong/podstorage
VolumePath: /home/xinyong/podstorage/volumes
Log in to the registry as that user with its token:
$ sudo podman login -u kubeadmin -p $(oc whoami -t) default-route-openshift-image-
registry.apps-crc.testing --tls-verify=false
ODO OpenShift Do (odo) 是Redhat的工具,安装地址如下:
#curl -L https://mirror.openshift.com/pub/openshift-v4/clients/odo/latest/odo-linux-amd64 -o /usr/local/bin/odo
#chmod +x /usr/local/bin/odo