二、阿里云镜像加速器配置

                     阿里云镜像加速器配置

1、获取阿里云镜像加速器

sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json <<-'EOF'
{
  "registry-mirrors": ["https://pcpbrev0.mirror.aliyuncs.com"]
}
EOF
sudo systemctl daemon-reload
sudo systemctl restart docker

2、CentOS 6.8 环境配置

vim  /etc/sysconfig/docker

填写配置地址：

"--registry-mirror=https://pcpbrev0.mirror.aliyuncs.com"

# /etc/sysconfig/docker
#
# Other arguments to pass to the docker daemon process
# These will be parsed by the sysv initscript and appended
# to the arguments list passed to docker -d

other_args="--registry-mirror=https://pcpbrev0.mirror.aliyuncs.com"
DOCKER_CERT_PATH=/etc/docker

# Resolves: rhbz#1176302 (docker issue #407)
DOCKER_NOWARN_KERNEL_VERSION=1

# Location used for temporary files, such as those created by
# # docker load and build operations. Default is /var/lib/docker/tmp
# # Can be overriden by setting the following environment variable.
# # DOCKER_TMPDIR=/var/tmp
~                                 

3、CentOS 7.0++ 环境配置

直接输入一下命令：

sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json <<-'EOF'
{
  "registry-mirrors": ["https://pcpbrev0.mirror.aliyuncs.com"]
}
EOF
sudo systemctl daemon-reload
sudo systemctl restart docker

4、验证加速器是否配置成功

[root@hadoop18 /]# service docker restart
停止 docker：                                              [确定]
Starting docker:	                                          [确定]
[root@hadoop18 /]# ps -ef | grep docker
root      3579     1  1 22:57 pts/0    00:00:00 /usr/bin/docker -d --registry-mirror=https://pcpbrev0.mirror.aliyuncs.com
root      3632  3292  0 22:58 pts/0    00:00:00 grep docker