linux下(centos7)docker安裝

參考連接https://docs.docker.com/install/linux/docker-ce/centos/

第一步,肯定是centos7及以上版本

cat /etc/redhat-release

CentOS Linux release 7.4.1708 (Core)

第二步,yum安裝gcc相關

肯定centos7能夠上外網
yum -y install gcc
yum -y install gcc-c++

安裝完成以後,查看gcc版本
gcc -v

Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-redhat-linux/4.8.5/lto-wrapper
Target: x86_64-redhat-linux
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-bootstrap --enable-shared --enable-threads=posix --enable-checking=release --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-linker-build-id --with-linker-hash-style=gnu --enable-languages=c,c++,objc,obj-c++,java,fortran,ada,go,lto --enable-plugin --enable-initfini-array --disable-libgcj --with-isl=/builddir/build/BUILD/gcc-4.8.5-20150702/obj-x86_64-redhat-linux/isl-install --with-cloog=/builddir/build/BUILD/gcc-4.8.5-20150702/obj-x86_64-redhat-linux/cloog-install --enable-gnu-indirect-function --with-tune=generic --with-arch_32=x86-64 --build=x86_64-redhat-linux
Thread model: posix
gcc version 4.8.5 20150623 (Red Hat 4.8.5-28) (GCC)

第三步,卸載舊版本

sudo yum remove docker \
          docker-client \
          docker-client-latest \
          docker-common \
          docker-latest \
          docker-latest-logrotate \
          docker-logrotate \
          docker-engine
          
\是鏈接符

第四步,安裝須要的軟件包

sudo yum install -y yum-utils \
  device-mapper-persistent-data \
  lvm2

第五步設置stable鏡像庫

# 官方推薦
sudo yum-config-manager \
    --add-repo \
    https://download.docker.com/linux/centos/docker-ce.repo

# 實際推薦
sudo yum yum-config-manager --add-repo http://mirrors.aliyun.com/cloer-re/linux/centos/docker-re.repo

第六步更新yum軟件包索引

yum makecache fast

第七步安裝docker ce

# 官網
sudo yum -y install docker-ce docker-ce-cli containerd.io

# 尚硅谷
yum -y install docker-ce

第八步啓動docker

sudo systemctl start docker

第九步測試

docker version

docer run hello-world

第十步配置鏡像加速

sudo mkdir -p /etc/docker
sudo tee /etc/docker/daemon.json

# daemon.json中的內容
{
  "registry-mirrors": ["https://eu2u8bif.mirror.aliyuncs.com"]
}
# 從新加載daemon.json
sudo systemctl daemon-reload
# 重啓docker
sudo systemctl restart docker

第十一步卸載

# 中止docker
systemctl stop docker
# 移除docker
sudo yum -y remove docker-ce
# 移除全部容器/鏡像/數據卷
sudo rm -rf /var/lib/docker