1. 下載 centos7 的 image
2. 在裡面安裝 mongodb 3.6
3. 編輯設定檔和產生 keyfile
# mongod.conf
# for documentation of all options, see:
# http://docs.mongodb.org/manual/reference/configuration-options/
# where to write logging data.
systemLog:
destination: file
logAppend: true
#path: /var/log/mongodb/mongod.log
path: /data/db/mongod.log
# Where and how to store data.
storage:
#dbPath: /var/lib/mongo
dbPath: /data/db
journal:
enabled: true
# engine:
# mmapv1:
# wiredTiger:
# how the process runs
processManagement:
fork: false # fork and run in background
pidFilePath: /var/run/mongodb/mongod.pid # location of pidfile
timeZoneInfo: /usr/share/zoneinfo
# network interfaces
net:
port: 27017
bindIp: 0.0.0.0 # Listen to local interface only, comment to listen on all interfaces.
security:
authorization: enabled
keyFile: /data/db/mongo-keyfile
#operationProfiling:
replication:
replSetName: stag
#sharding:
## Enterprise-Only Options
#auditLog:
#snmp:
4.產生 keyfile
openssl rand -base64 741 > mongo-keyfile
chmod 600 mongo-keyfile
5. 把變更過的 docker 存成 image
docker commit -m "xxx" -a "xxxx" 12345678 mongodb:stag
6. 在 kubernetes 上運行新的 image
apiVersion: apps/v1beta1
kind: StatefulSet
metadata:
name: mongo-stag-s0
namespace: stag
spec:
serviceName: mongo-stag-0
replicas: 1
template:
metadata:
labels:
app: mongo-stag-p0
spec:
containers:
- name: mongo-container0
image: mongodb:stag
command: ["/bin/bash","-c"]
args: ["/opt/mongodb/bin/mongod -f /data/db/mongod.conf"]
#imagePullPolicy: Always
ports:
- name: mongo-port0
containerPort: 27017
volumeMounts:
- name: mongo-stag-v0
mountPath: /data/db
livenessProbe:
tcpSocket:
port: 27017
initialDelaySeconds: 15
timeoutSeconds: 30
nodeSelector:
role: db
env: stag
#imagePullSecrets:
# - name: regsecret
volumeClaimTemplates:
- metadata:
name: mongo-stag-v0
spec:
accessModes: [ "ReadWriteOnce" ]
storageClassName: glusterfs-sc
resources:
requests:
storage: 20Gi
7. 把 mongod.conf 和 mongo-keyfile 搬到 /daba/db
8. 登入 mongo db ，建立管理帳號
use admin
db.createUser({
user: "root",
pwd: "123456",
roles: [{
"role": "root",
"db": "admin"
}]
})
9. 重啟 mongo db 的 pod
10.登入 mongo db ，執行以下指令
rs.initiate()
rs.add("node2")
rs.add("node3)"
rs.status()
11. 測試 replica 是否成功
Primary node:
use test
db.test.insert({"name" : "test", "value" : 2222})
db.test.find()
Slave node:
db.getMongo().setSlaveOk()
use test
db.test.find()
留言列表
