CentOS 7はopenshift 3をインストールする.9クラスタ
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CentOS 7 openshiftクラスタのインストール
オープンソースコンテナアプリケーションプラットフォーム、OriginはOpenShiftをサポートする上流コミュニティプロジェクトです.DockerコンテナパッケージとKubernetesコンテナクラスタ管理のコア構築をめぐって、Originはアプリケーションライフサイクル管理機能とDevOpsツールを追加しました.Originは、完全なオープンソースコンテナアプリケーションプラットフォームを提供します.
Red Hat OpenShiftのオープンソースバージョンであるOpenShift Originをインストールします
Role
IP
master.aniu.so
Master, etcd, and node
192.168.0.111
node1.aniu.so
Computer Node
192.168.0.114
node2.aniu.so
Computer Node
192.168.0.115
クラスタ構成リファレンス:https://docs.openshift.org/latest/install_config/install/planning.html
クラスタの構成に必要なシステム要件
ホストの設定
詳細は以下を参照してください.https://github.com/openshift/origin/blob/master/docs/cluster_up_down.md#prerequisites参照先:https://docs.openshift.org/latest/install_config/install/host_preparation.html#install-config-install-host-preparation
yum install wget git net-tools bind-utils yum-utils iptables-services bridge-utils bash-completion kexec-tools sos psacct -y
yum install ansible pyOpenSSL -y
# master ，
[root@master ~]# yum -y install centos-release-openshift-origin37 docker
[root@master ~]# vgcreate centos /dev/sdb1 # vgname centos
Volume group "centos" successfully created
[root@master ~]# echo VG=centos >> /etc/sysconfig/docker-storage-setup
[root@master ~]# systemctl start docker
[root@master ~]# systemctl enable docker
# master ：
[root@master ~]# ssh-keygen -t rsa
#
[root@master ~]# cat /etc/hosts # hosts， hosts node1，node2
127.0.0.1 localhost localhost.localdomain pinpoint
###########################################
## openshift
192.168.0.113 master.aniu.so
192.168.0.114 node1.aniu.so
192.168.0.115 node2.aniu.so
[root@master ~]# ssh-copy-id master.aniu.so
/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/root/.ssh/id_rsa.pub"
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
/usr/bin/ssh-copy-id: WARNING: All keys were skipped because they already exist on the remote system.
(if you think this is a mistake, you may want to use -f option)
[root@master ~]# ssh-copy-id node1.aniu.so
/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/root/.ssh/id_rsa.pub"
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
/usr/bin/ssh-copy-id: WARNING: All keys were skipped because they already exist on the remote system.
(if you think this is a mistake, you may want to use -f option)
[root@master ~]# ssh-copy-id node2.aniu.so
/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/root/.ssh/id_rsa.pub"
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
/usr/bin/ssh-copy-id: WARNING: All keys were skipped because they already exist on the remote system.
(if you think this is a mistake, you may want to use -f option)
メインノードで、rootを使用してAnsible Playbookにログインして実行し、OpenShiftクラスタを設定します。
yum -y install atomic-openshift-utils
ansible hosts ：
[root@master ~]# cat /etc/ansible/hosts
# add follows to the end
[OSEv3:children]
masters
nodes
etcd
[OSEv3:vars]
# admin user created in previous section
ansible_ssh_user=root
openshift_deployment_type=origin
# use HTPasswd for authentication
openshift_master_identity_providers=[{'name': 'htpasswd_auth', 'login': 'true', 'challenge': 'true', 'kind': 'HTPasswdPasswordIdentityProvider', 'filename': '/etc/origin/master/.htpasswd'}]
openshift_master_default_subdomain=apps.test.aniu.so
# allow unencrypted connection within cluster
openshift_docker_insecure_registries=172.30.0.0/16
[masters]
master.aniu.so openshift_schedulable=true containerized=false
[etcd]
master.aniu.so
[nodes]
# set labels [region: ***, zone: ***] (any name you like)
master.aniu.so openshift_node_labels="{'region': 'infra', 'zone': 'default'}"
node1.aniu.so openshift_node_labels="{'region': 'primary', 'zone': 'east'}" openshift_schedulable=true
node2.aniu.so openshift_node_labels="{'region': 'primary', 'zone': 'west'}" openshift_schedulable=true
# deploy_cluster.yml ：
ansible-playbook /usr/share/ansible/openshift-ansible/playbooks/deploy_cluster.yml # ， 2 。。。
- ：
Error from server (Forbidden): nodes is forbidden: User "system:anonymous" cannot list nodes at the cluster scope: User "system:anonymous" cannot list all nodes in the cluster
：
[root@master ~]# oc login -u system:admin # admin
Logged into "https://master.aniu.so:8443" as "system:admin" using existing credentials.
You have access to the following projects and can switch between them with 'oc project ':
* default
kube-public
kube-system
logging
management-infra
openshift
openshift-infra
openshift-node
openshift-web-console
Using project "default".
[root@master ~]# oc get nodes
NAME STATUS ROLES AGE VERSION
master.aniu.so Ready master 4h v1.9.1+a0ce1bc657
node1.aniu.so Ready 4h v1.9.1+a0ce1bc657
node2.aniu.so Ready 4h v1.9.1+a0ce1bc657
[root@master ~]# oc get nodes --show-labels=true
NAME STATUS ROLES AGE VERSION LABELS
master.aniu.so Ready master 4h v1.9.1+a0ce1bc657 beta.kubernetes.io/arch=amd64,beta.kubernetes.io/os=linux,kubernetes.io/hostname=master.aniu.so,node-role.kubernetes.io/master=true,region=infra,zone=default
node1.aniu.so Ready 4h v1.9.1+a0ce1bc657 beta.kubernetes.io/arch=amd64,beta.kubernetes.io/os=linux,kubernetes.io/hostname=node1.aniu.so,region=primary,zone=east
node2.aniu.so Ready 4h v1.9.1+a0ce1bc657 beta.kubernetes.io/arch=amd64,beta.kubernetes.io/os=linux,kubernetes.io/hostname=node2.aniu.so,region=primary,zone=west
Openshiftにログインするための新しいユーザーを作成
[root@master ~]# htpasswd /etc/origin/master/.htpasswd aniu #
[root@master ~]# oc login
Authentication required for https://master.aniu.so:8443 (openshift)
Username: aniu
Password:
Login successful.
You don't have any projects. You can try to create a new project, by running
oc new-project
[root@master ~]# oc whoami
aniu
[root@master ~]# oc logout
Logged "aniu" out on "https://master.aniu.so:8443"