参考文档

机器配置

Architecture:          x86_64
CPU op-mode(s):        32-bit, 64-bit
Byte Order:            Little Endian
CPU(s):                48
On-line CPU(s) list:   0-47
Thread(s) per core:    2
Core(s) per socket:    12
Socket(s):             2
NUMA node(s):          2
Vendor ID:             GenuineIntel
CPU family:            6
Model:                 63
Model name:            Intel(R) Xeon(R) CPU E5-2678 v3 @ 2.50GHz
Stepping:              2
CPU MHz:               1201.953
CPU max MHz:           3300.0000
CPU min MHz:           1200.0000
BogoMIPS:              4999.79
Virtualization:        VT-x
L1d cache:             32K
L1i cache:             32K
L2 cache:              256K
L3 cache:              30720K
NUMA node0 CPU(s):     0,2,4,6,8,10,12,14,16,18,20,22,24,26,28,30,32,34,36,38,40,42,44,46
NUMA node1 CPU(s):     1,3,5,7,9,11,13,15,17,19,21,23,25,27,29,31,33,35,37,39,41,43,45,47
Flags:                 fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc aperfmperf eagerfpu pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 fma cx16 xtpr pdcm pcid dca sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm ida arat epb pln pts dtherm tpr_shadow vnmi flexpriority ept vpid fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid cqm xsaveopt cqm_llc cqm_occup_llc

- free -h
              total        used        free      shared  buff/cache   available
Mem:            62G         34G         16G         10M         11G         28G
Swap:          8.0G        219M        7.8G

安装

 #Install Docker CE
## Set up the repository
### Install required packages.
yum install yum-utils device-mapper-persistent-data lvm2

### Add Docker repository.
yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo

## Install Docker CE.
yum update && yum install containerd.io-1.2.10   docker-ce-19.03.4 docker-ce-cli-19.03.4

## Create /etc/docker directory.
mkdir /etc/docker

# Setup daemon.
# https://docs.docker.com/config/daemon/
cat > /etc/docker/daemon.json 
--------------------
{
  "exec-opts": ["native.cgroupdriver=systemd"],
  "log-driver": "json-file",
  "log-opts": {
    "max-size": "100m"
  },
  "storage-driver": "overlay2",
  "storage-opts": [
    "overlay2.override_kernel_check=true"
  ]
}
--------------------
mkdir -p /etc/systemd/system/docker.service.d

# Restart Docker
systemctl daemon-reload
systemctl restart docker

K8s 涉及

modprobe overlay
modprobe br_netfilter

# Setup required sysctl params, these persist across reboots.
cat > /etc/sysctl.d/99-kubernetes-cri.conf <<EOF
net.bridge.bridge-nf-call-iptables  = 1
net.ipv4.ip_forward                 = 1
net.bridge.bridge-nf-call-ip6tables = 1
EOF

sysctl --system


>>>



# Install prerequisites
yum-config-manager --add-repo=https://cbs.centos.org/repos/paas7-crio-115-release/x86_64/os/

# Install CRI-O
yum install --nogpgcheck cri-o

systemctl daemon-reload
systemctl start crio


>>>
###  containerd用作CRI运行时的必要步骤

cat > /etc/modules-load.d/containerd.conf <<EOF
overlay
br_netfilter
EOF

>>>

# Install containerd
## Set up the repository
### Install required packages
yum install yum-utils device-mapper-persistent-data lvm2

### Add docker repository
yum-config-manager \
    --add-repo \
    https://download.docker.com/linux/centos/docker-ce.repo

## Install containerd
yum update && yum install containerd.io

# Configure containerd
mkdir -p /etc/containerd
containerd config default > /etc/containerd/config.toml

# Restart containerd
systemctl restart containerd

Stat

# systemctl status docker.service
● docker.service - Docker Application Container Engine
   Loaded: loaded (/usr/lib/systemd/system/docker.service; disabled; vendor preset: disabled)
   Active: active (running) since Thu 2019-12-19 14:54:57 CST; 11s ago
     Docs: https://docs.docker.com
 Main PID: 13067 (dockerd)
    Tasks: 36
   Memory: 57.1M
   CGroup: /system.slice/docker.service
           └─13067 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock