Docker 单机安装 ceph

Docker 安装 ceph

原文

安装

1. 创建 Ceph 专用网络

sudo docker network create --driver bridge --subnet 172.20.0.0/16 ceph-network

2. 拉取搭建用镜像

sudo docker pull ceph/daemon:latest-luminous

3. 搭建 mon 节点

sudo docker run -d --name ceph-mon --network ceph-network --ip 172.20.0.10 -e CLUSTER=ceph -e WEIGHT=1.0 -e MON_IP=172.20.0.10 -e MON_NAME=ceph-mon -e CEPH_PUBLIC_NETWORK=172.20.0.0/16 -v /etc/ceph:/etc/ceph -v /var/lib/ceph/:/var/lib/ceph/ -v /var/log/ceph/:/var/log/ceph/ ceph/daemon:latest-luminous mon

4. 搭建 osd 节点

sudo docker exec ceph-mon ceph auth get client.bootstrap-osd -o /var/lib/ceph/bootstrap-osd/ceph.keyring

修改配置文件以兼容 etx4 硬盘

sudo vi /etc/ceph/ceph.conf

在文件最后添加：

osd max object name len = 256
osd max object namespace len = 64

分别启动三个容器来模拟集群

sudo docker run -d --privileged=true --name ceph-osd-1 --network ceph-network --ip 172.20.0.11 -e CLUSTER=ceph -e WEIGHT=1.0 -e MON_NAME=ceph-mon -e MON_IP=172.20.0.10 -e OSD_TYPE=directory -v /etc/ceph:/etc/ceph -v /var/lib/ceph/:/var/lib/ceph/ -v /var/lib/ceph/osd/1:/var/lib/ceph/osd -v /etc/localtime:/etc/localtime:ro ceph/daemon:latest-luminous osd
sudo docker run -d --privileged=true --name ceph-osd-2 --network ceph-network --ip 172.20.0.12 -e CLUSTER=ceph -e WEIGHT=1.0 -e MON_NAME=ceph-mon -e MON_IP=172.20.0.10 -e OSD_TYPE=directory -v /etc/ceph:/etc/ceph -v /var/lib/ceph/:/var/lib/ceph/ -v /var/lib/ceph/osd/2:/var/lib/ceph/osd -v /etc/localtime:/etc/localtime:ro ceph/daemon:latest-luminous osd
sudo docker run -d --privileged=true --name ceph-osd-3 --network ceph-network --ip 172.20.0.13 -e CLUSTER=ceph -e WEIGHT=1.0 -e MON_NAME=ceph-mon -e MON_IP=172.20.0.10 -e OSD_TYPE=directory -v /etc/ceph:/etc/ceph -v /var/lib/ceph/:/var/lib/ceph/ -v /var/lib/ceph/osd/3:/var/lib/ceph/osd -v /etc/localtime:/etc/localtime:ro ceph/daemon:latest-luminous osd

5. 搭建 mgr 节点

sudo docker run -d --privileged=true --name ceph-mgr --network ceph-network --ip 172.20.0.14 -e CLUSTER=ceph -p 7000:7000 --pid=container:ceph-mon -v /etc/ceph:/etc/ceph -v /var/lib/ceph/:/var/lib/ceph/ ceph/daemon:latest-luminous mgr

开启管理界面

sudo docker exec ceph-mgr ceph mgr module enable dashboard

6. 搭建 rgw 节点

sudo docker exec ceph-mon ceph auth get client.bootstrap-rgw -o /var/lib/ceph/bootstrap-rgw/ceph.keyring
sudo docker run -d --privileged=true --name ceph-rgw --network ceph-network --ip 172.20.0.15 -e CLUSTER=ceph -e RGW_NAME=ceph-rgw -p 7480:7480 -v /var/lib/ceph/:/var/lib/ceph/ -v /etc/ceph:/etc/ceph -v /etc/localtime:/etc/localtime:ro ceph/daemon:latest-luminous rgw

7. 检查 Ceph 状态

sudo docker exec ceph-mon ceph -s

8. 测试添加 rgw 用户

sudo docker exec ceph-rgw radosgw-admin user create --uid="test" --display-name="test user"

执行结果

{
    "user_id": "test",
    "display_name": "test user",
    "email": "",
    "suspended": 0,
    "max_buckets": 1000,
    "auid": 0,
    "subusers": [],
    "keys": [
        {
            "user": "test",
            "access_key": "8FLKX5K6GN2TXELKRCSV",
            "secret_key": "5bXtvUwG2odDseyAzbWOkmCBdHTnGgjTPn7MqPO7"
        }
    ],
    "swift_keys": [],
    "caps": [],
    "op_mask": "read, write, delete",
    "default_placement": "",
    "placement_tags": [],
    "bucket_quota": {
        "enabled": false,
        "check_on_raw": false,
        "max_size": -1,
        "max_size_kb": 0,
        "max_objects": -1
    },
    "user_quota": {
        "enabled": false,
        "check_on_raw": false,
        "max_size": -1,
        "max_size_kb": 0,
        "max_objects": -1
    },
    "temp_url_keys": [],
    "type": "rgw"
}

注意

1. OSD 节点少了时 rgw 节点会报初始化失败
2. 各个容器的时区是否一致