§2024-08-18

¶1. Ubuntu 24.04 LTS (Noble Numbat)

alexlai@hc4Noble:~$ lsblk -f
NAME   FSTYPE FSVER LABEL UUID                                 FSAVAIL FSUSE% MOUNTPOINTS
sda                                                                           
├─sda1 ext4   1.0   BOOT  f980a748-b1be-4691-a7dd-7d59e612e496  829.5M     3% /boot
├─sda2 swap   1           0a2e84d2-325e-431a-82b8-c2b5104bec4d                [SWAP]
├─sda3 ext4   1.0   root  78dc0f0c-8110-43b0-958b-986fdbe882fb   54.3G     2% /
└─sda4 xfs          xfs   e10fb855-3c73-49d2-8a1d-3d7c4e46213d  163.6G     1% /opt/xfs

¶2. Deploy with Ubuntu@rocket.chat

Preparation steps

Depending on the version of Rocket.Chat you want to install, check the release notes to see the supported engine versions for MongoDB and NodeJs, and install as recommended.

$ mkdir -p build/src && cd $_
alexlai@hc4Noble:~/build/src$ wget https://repo.mongodb.org/apt/ubuntu/dists/jammy/mongodb-org/7.0/multiverse/binary-arm64/mongodb-org-server_7.0.12_arm64.deb
$ sudo dpkg -i mongodb-org-server_7.0.12_arm64.deb
Selecting previously unselected package mongodb-org-server.
(Reading database ... 28873 files and directories currently installed.)
Preparing to unpack mongodb-org-server_7.0.12_arm64.deb ...
Unpacking mongodb-org-server (7.0.12) ...
Setting up mongodb-org-server (7.0.12) ...
info: Selecting UID from range 100 to 999 ...

info: Adding system user `mongodb' (UID 106) ...
info: Adding new user `mongodb' (UID 106) with group `nogroup' ...
info: Not creating `/nonexistent'.
info: Selecting GID from range 100 to 999 ...
info: Adding group `mongodb' (GID 109) ...
info: Adding user `mongodb' to group `mongodb' ...
Processing triggers for man-db (2.12.0-4build2) ...

$ mongod -version
db version v7.0.12
Build Info: {
    "version": "7.0.12",
    "gitVersion": "b6513ce0781db6818e24619e8a461eae90bc94fc",
    "openSSLVersion": "OpenSSL 3.0.13 30 Jan 2024",
    "modules": [],
    "allocator": "tcmalloc",
    "environment": {
        "distmod": "ubuntu2204",
        "distarch": "aarch64",
        "target_arch": "aarch64"
    }
}

- setup /opt/xfs

$ sudo mkdir /opt/xfs/mongodb
alexlai@hc4Noble:~/build/src$ sudo mkdir /opt/xfs/mongodb/data
alexlai@hc4Noble:~/build/src$ sudo mkdir /opt/xfs/mongodb/log
alexlai@hc4Noble:~/build/src$ sudo chown mongodb:mongodb -R /opt/xfs/mongodb/
alexlai@hc4Noble:~/build/src$ ls -l  /opt/xfs/mongodb/
total 0
drwxr-xr-x 2 mongodb mongodb 6 Aug 18 14:35 data
drwxr-xr-x 2 mongodb mongodb 6 Aug 18 14:35 log


- /etc/mongod.conf

# mongod.conf

# for documentation of all options, see:
#   http://docs.mongodb.org/manual/reference/configuration-options/

# Where and how to store data.
storage:
  dbPath: /opt/xfs/mongodb/data
#  engine:
#  wiredTiger:

# where to write logging data.
systemLog:
  destination: file
  logAppend: true
  path: /opt/xfs/mongodb/log/mongod.log

# network interfaces
net:
  port: 27017
  bindIp: 127.0.0.1


# how the process runs
processManagement:
  timeZoneInfo: /usr/share/zoneinfo

#security:

#operationProfiling:

replication:
  replSetName: rs01
#sharding:

## Enterprise-Only Options:

#auditLog:

- /usr/lib/systemd/system/mongod.service

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

[Service]
User=mongodb
Group=mongodb
EnvironmentFile=-/etc/default/mongod
Environment="MONGODB_CONFIG_OVERRIDE_NOFORK=1"
ExecStart=/usr/bin/mongod --config /etc/mongod.conf
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

- test to start mongod.service

alexlai@hc4Noble:~$ sudo systemctl restart  mongod.service 
alexlai@hc4Noble:~$ sudo systemctl status   mongod.service 
● mongod.service - MongoDB Database Server
     Loaded: loaded (/usr/lib/systemd/system/mongod.service; disabled; preset: enabled)
     Active: active (running) since Sun 2024-08-18 15:16:56 CST; 2s ago
       Docs: https://docs.mongodb.org/manual
   Main PID: 2004 (mongod)
     Memory: 168.9M (peak: 169.4M)
        CPU: 2.348s
     CGroup: /system.slice/mongod.service
             └─2004 /usr/bin/mongod --config /etc/mongod.conf

Aug 18 15:16:56 hc4Noble systemd[1]: Started mongod.service - MongoDB Database Server.
Aug 18 15:16:56 hc4Noble mongod[2004]: {"t":{"$date":"2024-08-18T07:16:56.300Z"},"s":"I",  "c":"CONTROL",  "id":7484500, "ctx":"main","msg":"Environment variable MONGODB_CONFIG_OVERRIDE_NOF>

- enable mongod.service

alexlai@hc4Noble:~$ sudo systemctl enable mongod.service 
Created symlink /etc/systemd/system/multi-user.target.wants/mongod.service → /usr/lib/systemd/system/mongod.service.

When deploying MongoDB, it is crucial to secure MongoDB instances and close all MongoDB ports from public access. Unsecured instances can lead to significant security vulnerabilities. Your vigilance in these practices is essential for maintaining the integrity and safety of your systems.

- using fnm to control node version

$ sudo apt install unzip

installs fnm (Fast Node Manager)

alexlai@hc4Noble:~$ curl -fsSL https://fnm.vercel.app/install | bash Checking dependencies for the installation script... Checking availability of curl... OK! Checking availability of unzip... OK! Downloading https://github.com/Schniz/fnm/releases/latest/download/fnm-arm64.zip... ######################################################################## 100.0% Installing for Bash. Appending the following to /home/alexlai/.bashrc:

fnm

FNM_PATH="/home/alexlai/.local/share/fnm" if [ -d "$FNM_PATH" ]; then export PATH="$FNM_PATH:$PATH" eval "fnm env" fi

In order to apply the changes, open a new terminal or run the following command:

source /home/alexlai/.bashrc $ source /home/alexlai/.bashrc $ alexlai@hc4Noble:~$ fnm list-remote ... v22.5.1 v22.6.0

$ fnm install v22.6.0 $ fnm list

alexlai@hc4Noble:$ ls /home/alexlai/.local/share/fnm/node-versions/v22.6.0/installation/bin/node /home/alexlai/.local/share/fnm/node-versions/v22.6.0/installation/bin/node alexlai@hc4Noble:$ /home/alexlai/.local/share/fnm/node-versions/v22.6.0/installation/bin/node --version v22.6.0 alexlai@hc4Noble:$ sudo ln -sf /home/alexlai/.local/share/fnm/node-versions/v22.6.0/installation/bin/node /usr/bin/node alexlai@hc4Noble:$ sudo ln -sf /home/alexlai/.local/share/fnm/node-versions/v22.6.0/installation/bin/npm /usr/bin/npm [sudo] password for alexlai: alexlai@hc4Noble:~$ sudo ln -sf /home/alexlai/.local/share/fnm/node-versions/v22.6.0/installation/bin/npx /usr/bin/npx

alexlai@hc4Noble:$ which node /run/user/1026/fnm_multishells/2194_1723966064595/bin/node alexlai@hc4Noble:$ /usr/bin/node --version v22.6.0

    - test other user

root@hc4Noble:/home/alexlai# which node /usr/bin/node root@hc4Noble:/home/alexlai# node Welcome to Node.js v22.6.0. Type ".help" for more information.

root@hc4Noble:/home/alexlai# which npm /usr/bin/npm root@hc4Noble:/home/alexlai# which npx /usr/bin/npx