Ceph automated deployment ---- Ceph-ansible

Ceph automated deployment ---- Ceph-ansible

Operating System: rhel-7.5

I. Introduction --Ceph of several different deployment

• Manual Deployment
• Helm + kubernetes deployment
• Ceph-deploy deployment
• Ceph-ansible部署

Second, use deployment Ceph Ceph-ansible

1. From the above GIT copy of the source code to local

   # git clone https://github.com/ceph/ceph-ansible.git 

2. Switch to the stable-3.1 version (use git-related details, please inquire on their own)

   # cd  ceph-ansible     //进入到ceph-ansible目录下
   # git branch -r   //查看系统分支
   # git fetch origin stable-3.1  //将远端得3.1拉到本地
   # git chechout  stable-3.1  //切换到3.1分支

3. Installation ansible, use pip to install ansible.

   # pip install -r requirements.txt

4. Creating Inventory List

   Only creates the following roles, we only have to deploy Ceph basic functions

   [mons]
   node1
   node2
   node3
   
   [osds]
   node1
   node2
   node3
   
   [rgws]
   node1
   node2
   node3
   
   [clients]
   node1
   node2
   node3
   
   [mgrs]
   node1
   node2
   node3

5. Copy group_vars / all.yml.sample to group_vars / all.yml, and modify all.yml file, add the following parameters:

   ceph_origin: repository
   ceph_repository: community
   ceph_mirror: https://mirrors.163.com/ceph/
   ceph_stable_release: luminous
   ceph_stable_repo: "{{ ceph_mirror }}/rpm-{{ ceph_stable_release }}"
   ceph_stable_redhat_distro: el7
   monitor_interface: eth1
   journal_size: 1024
   public_network: 192.168.9.0/24
   cluster_network: 192.168.10.0/24
   osd_objectstore: filestore
   radosgw_interface: "{{ monitor_interface }}"
   osd_auto_discovery: true

6. Copy site.yml.sample to site.yml (commented Some host, the following effects :)

   - hosts:
     - mons
     - agents
     - osds
    # - mdss
     - rgws
    # - nfss
    # - restapis
    # - rbdmirrors
     - clients
     - mgrs
    # - iscsigws
    # - iscsi-gws # for backward compatibility only!
   

7. Perform deployment operations

   ansible-playbook  -i hosts  site.yml

Precautions:

Before deploying a cluster, but also to do something:

1, do address resolution on each server

2, do mutual trust between the server (you can avoid dense login)

3, do time synchronization using chrony

Third, subsequent updates. . .