Programming > CODING SOLUTION > Install and configure Docker on your master and node systems according to the following conditions: (All)

Install and configure Docker on your master and node systems according to the following conditions: Docker uses the pre-existing volume group docker-vg as a backing volume. Docker points to the private registry at workstation.lab.example.com:5000 Docker must NOT use public registries docker.io and registry.access.redhat.com Docker uses the certificate available from workstation.lab.example.com's dir of :/etc/pki/tls/certs/example.com.crt

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1.Install and configure Docker Install and configure Docker on your master and node systems according to the following conditions: Docker uses the pre-existing volume group docker-vg as a backing volume. Docker points to the private registry at workstation.lab.example.com:5000 Docker must NOT use public registries docker.io and registry.access.redhat.com Docker uses the certificate available from workstation.lab.example.com's dir of :/etc/pki/tls/certs/example.com.crt Add the certificate as trusted In order to test if your docker configurationg is correct you may try to run:docker pull openshift/hello-openshift ########################################################################## ###on master do that ssh-keygen -f .ssh/id_rsa -N '' ssh-copy-id root@master ssh-copy-id root@node ###on master and node do follow yum update -y systemctl start NetworkManager ; systemctl enable NetworkManager systemctl stop firewalld ; systemctl disable firewalld yum install docker -y systemctl start docker ; systemctl enable docker #docker info ; pvs ; vgs cat >> /etc/sysconfig/docker-storage-setup < /root/images cat /root/images|while read image ;do docker pull $image;done scp /root/images root@node:/root/images #on node cat /root/images|while read image ;do docker pull $image;done ########################################################################## 2.Install OpenShift Enterprise Install OpenShift Enterprise(OpenShift Container Platform) on master using the official installer and configure systems as follows:######################## System Role master.lab.example.com MASTER node.lab.example.com NODE ######################## The installation will be RPM based. The applications subdomain is set to cloudapps.lab.example.com The installer uses the root user for ssh access Note:(ssh keys have already been setup). ########################################################################## #on master and node yum -y install wget git net-tools bind-utils iptables-services bridge-utils atomic-openshift-docker-excluder atomic-openshift-excluder atomic-openshiftutils atomic-openshift-excluder unexclude cp /etc/sysconfig/docker{,.back} #on master atomic-openshift-installer install Are you ready to continue[y/n]: y User for ssh access[root]: root (1) Openshift Container Platform (2) Registry Choose a variant from above: [1]: Enter Enter hostname or IP address: master.lab.example.com Will this host be an openshift master?[y/N]: y Will this host be RPM or Container based? [rpm]: Enter Do you want to add additional hosts? [y/N]: y Enter hostname or IP address: node.lab.example.com Will this host be an openshift master？[y/N]: N Will this host be RPM or Container based? [rpm]: Enter Do you want to add additional hosts? [y/N]: N New default subdomain[]: cloudapps.lab.example.com //实际考试根据实际情况填写 >Specify your http proxy? Enter >Specify your https proxy? Enter Do the above facts look correct?[y/N]: y Are you ready to continue[y/n]: y systemctl status atomic-openshift-master.service #on master and node systemctl status atomic-openshift-node.service oc get nodes //检查 maste 和 node 节点状态是否正常

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