The command

docker

Output

attach Attach local standard input, output, and error streams to a running container build Build an image from a Dockerfile commit Create a new image from a container's changes cp Copy files/folders between a container and the local filesystem create Create a new container diff Inspect changes to files or directories on a container's filesystem events Get real time events from the server exec Run a command in a running container export Export a container's filesystem as a tar archive history Show the history of an image images List images import Import the contents from a tarball to create a filesystem image info Display system-wide information inspect Return low-level information on Docker objects kill Kill one or more running containers load Load an image from a tar archive or STDIN login Log in to a Docker registry logout Log out from a Docker registry logs Fetch the logs of a container pause Pause all processes within one or more containers port List port mappings or a specific mapping for the container ps List containers pull Pull an image or a repository from a registry push Push an image or a repository to a registry rename Rename a container restart Restart one or more containers rm Remove one or more containers rmi Remove one or more images run Run a command in a new container save Save one or more images to a tar archive (streamed to STDOUT by default) search Search the Docker Hub for images start Start one or more stopped containers stats Display a live stream of container(s) resource usage statistics stop Stop one or more running containers tag Create a tag TARGET_IMAGE that refers to SOURCE_IMAGE top Display the running processes of a container unpause Unpause all processes within one or more containers update Update configuration of one or more containers version Show the Docker version information wait Block until one or more containers stop, then print their exit codes

Ref: https://www.digitalocean.com/community/tutorials/how-to-install-and-use-docker-on-ubuntu-20-04

MongoDB

Ref: https://linux.how2shout.com/how-to-install-mongodb-server-on-alpine-linux/

# echo 'http://dl-cdn.alpinelinux.org/alpine/v3.9/main' >> /etc/apk/repositories # echo 'http://dl-cdn.alpinelinux.org/alpine/v3.9/community' >> /etc/apk/repositories # apk update # apk add mongodb # apk add mongodb-tools # mkdir -p /data/db/ # chown 'root' /data/db # rc-update add mongodb default # rc-service mongodb start

# mongo > use admin > db.createUser( { user: "admin", pwd: "1234567890", roles: [ { role: "root", db: "admin" } ] } ) > use nodebb > db.createUser( { user: "nodebb", pwd: "1234567890", roles: [ { role: "readWrite", db: "nodebb" }, { role: "clusterMonitor", db: "admin" } ] } ) > db.createUser( { user: "root", pwd: "1234567890", roles: [ { role: "readWrite", db: "nodebb" }, { role: "db.root", db: "admin" } ] } ) > quit()

Enable security in MongoDB conf file.
File: /etc/mongod.conf

security: authorization: enabled

Example connection string for node

const { MongoClient } = require('mongodb') const url = 'mongodb://127.0.0.1:27017'; const dbClient = new MongoClient(url); dbClient.connect() const db = dbClient.db('somedb')

rewrite ^/(.*)$ https://destination.domain.com/$1 permanent;