§2023-07-29

We will start the replication setup using x.509 from hc4MnMinArch.yushei.net

• replicationSet : MuneTakaHome:27999

¶Step1: /etc/mongodb-27999.conf,

• 27999 is the port for MuneTakaHome ReplicationSet.

# mongodb-27999.conf
# MuneTakaHome replicationSet

# 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: /opt/xfs/mongodb/log/mongod-27999.log

# Where and how to store data.
storage:
  dbPath: /opt/xfs/mongodb/data-27999
  
# how the process runs
processManagement:
  timeZoneInfo: /usr/share/zoneinfo

# network interfaces
net:
  port: 27999
  bindIp: 0.0.0.0   # Enter 0.0.0.0,:: to bind to all IPv4 and IPv6 addresses or, alternatively, use the net.bindIpAll setting.
  ssl:
        mode: preferSSL
        PEMKeyFile: /var/lib/mongodb/x.509/orgpi5Arch.yushei.net.pem
        CAFile: /var/lib/mongodb/x.509/mongoCA.crt
        allowInvalidCertificates: false
        allowInvalidHostnames: false

        # clusterFile: /var/lib/mongodb/x.509/orgpi5Arch.yushei.net.pem
        # PEMKeyPassword: TxxxxYxxLxx#1nnn
        # clusterPassword: TxxxxYxxLxx#1nnn
security:
    authorization: enabled
    clusterAuthMode: x509  

#operationProfiling:

replication:
  replSetName: "MuneTakaHome"
  
#sharding:

## Enterprise-Only Options

#auditLog:

#snmp:

Don't forget to create directories

$ sudo mkdir /opt/xfs/mongodb/data-27999
[sudo] password for alexlai: 
[alexlai@orpi5Arch x.509]$ sudo chown mongodb:mongodb /opt/xfs/mongodb/data-27999/

¶Step 2: /etc/systemd/system/Mongodb-27999.service

[Unit]
Description=MongoDB Database Server, port 27999, MuneTakaHome
Documentation=https://docs.mongodb.org/manual
After=network-online.target
Wants=network-online.target

[Service]
TimeoutStartSec=infinity
User=mongodb
Group=mongodb
Environment="OPTIONS=-f /etc/mongodb-27999.conf"
Environment="MONGODB_CONFIG_OVERRIDE_NOFORK=1"
ExecStart=/usr/local/bin/mongod $OPTIONS
RuntimeDirectory=mongodb
# file size
LimitFSIZE=infinity
# cpu time
LimitCPU=infinity
# virtual memory size
LimitAS=infinity
# open files
LimitNOFILE=64000
# processes/threads
LimitNPROC=64000
# locked memory
LimitMEMLOCK=infinity
# total threads (user+kernel)
TasksMax=infinity
TasksAccounting=false
# Recommended limits for mongod as specified in
# https://docs.mongodb.com/manual/reference/ulimit/#recommended-ulimit-settings

[Install]
WantedBy=multi-user.target

¶Step3, start and check

$ sudo systemctl daemoon-reload
$ sudo systemctl start Mongodb-27999.service
$ sudo systemctl status Mongodb-27999.service

alexlai@orgpiJammy:~/x.509$ sudo ls /opt/xfs/mongodb/data-27999/
collection-0--3399823647854825395.wt  index-1--3399823647854825395.wt  journal          storage.bson     WiredTiger.turtle
collection-2--3399823647854825395.wt  index-3--3399823647854825395.wt  _mdb_catalog.wt  WiredTiger       WiredTiger.wt
collection-4--3399823647854825395.wt  index-5--3399823647854825395.wt  mongod.lock      WiredTigerHS.wt
diagnostic.data                       index-6--3399823647854825395.wt  sizeStorer.wt    WiredTiger.lock

alexlai@orgpiJammy:~/x.509$ sudo tail -f /opt/xfs/mongodb/log/mongod-27999.log
{"t":{"$date":"2023-07-29T15:33:28.023+08:00"},"s":"I",  "c":"STORAGE",  "id":22262,  
"ctx":"initandlisten","msg":"Timestamp monitor starting"}
{"t":{"$date":"2023-07-29T15:33:28.026+08:00"},"s":"I",  "c":"NETWORK",  "id":23015,  
"ctx":"listener","msg":"Listening on","attr":{"address":"/tmp/mongodb-27999.sock"}}
{"t":{"$date":"2023-07-29T15:33:28.026+08:00"},"s":"I",  "c":"NETWORK",  "id":23015,  
"ctx":"listener","msg":"Listening on","attr":{"address":"0.0.0.0"}}
{"t":{"$date":"2023-07-29T15:33:28.026+08:00"},"s":"I",  "c":"NETWORK",  "id":23016,   
"ctx":"listener","msg":"Waiting for connections","attr":{"port":27999,"ssl":"on"}}   

&paras;Step 4, check with mongosh

If ~/.mongoshrc.js

// .mongoshrc

// Configuration for connecting to the MongoDB instance
// running on port 27999 locally.

db = connect("mongodb://localhost:27999/admin");

// db.auth();

console.log("Hi! from orgpi5Jammy.yushei.net:27999");

[alexlai@orpi5Arch ~]$ mongosh mongodb://localhost:27999
Current Mongosh Log ID: 64c4b0b551cd35d9d0b3ea5e
Connecting to:          mongodb://localhost:27999/?directConnection=true&serverSelectionTimeoutMS=2000&appName=mongosh+1.10.1
Using MongoDB:          7.0.0-rc8
Using Mongosh:          1.10.1

For mongosh info see: https://docs.mongodb.com/mongodb-shell/

Hi! from orgpi5Arch.yushei.net:27999
admin> 

But,

[alexlai@orpi5Arch ~]$ mongosh
Current Mongosh Log ID: 64c4b0d0ef31bf88e41e51f7
Connecting to:          mongodb://127.0.0.1:27017/?directConnection=true&serverSelectionTimeoutMS=2000&appName=mongosh+1.10.1
MongoNetworkError: connect ECONNREFUSED 127.0.0.1:27017