dokku-postgres VS PostgreSQL

# setup plugin sudo dokku plugin:install https://github.com/dokku/dokku-postgres.git # create a new database for our app dokku postgres:create bitwarden # link the postgres service to the app, DATABASE_URL will be attached to the ENV variables automatically. dokku postgres:link bitwarden bitwarden

# For PostgresSQL $ sudo dokku plugin:install https://github.com/dokku/dokku-postgres.git postgres $ dokku postgres:create app-name-db $ dokku postgres:link app-name-db app-name # For MongoDB $ sudo dokku plugin:install https://github.com/dokku/dokku-mongo.git mongo $ dokku mongo:create app-name-db $ dokku mongo:link app-name-db app-name

root@vps17825:~# sudo dokku plugin:install https://github.com/dokku/dokku-postgres.git postgres -----> Cloning plugin repo https://github.com/dokku/dokku-postgres.git to /var/lib/dokku/plugins/available/postgres Cloning into 'postgres'... remote: Enumerating objects: 2356, done. remote: Counting objects: 100% (417/417), done. remote: Compressing objects: 100% (276/276), done. remote: Total 2356 (delta 244), reused 267 (delta 118), pack-reused 1939 Receiving objects: 100% (2356/2356), 483.24 KiB | 3.48 MiB/s, done. Resolving deltas: 100% (1580/1580), done. -----> Plugin postgres enabled Adding user dokku to group adm Starting nginx (via systemctl): nginx.service. 14.1: Pulling from library/postgres 5eb5b503b376: Pull complete daa0467a6c48: Pull complete 7cf625de49ef: Pull complete bb8afcc973b2: Pull complete c74bf40d29ee: Pull complete 2ceaf201bb22: Pull complete 1255f255c0eb: Pull complete d27501cd0cca: Pull complete ff5b6d09a5d0: Pull complete f635aec27645: Pull complete a165c6729250: Pull complete b0aa4f86b611: Pull complete 9efc4664d9d2: Pull complete Digest: sha256:3162a6ead070474b27289f09eac4c865e75f93847a2d7098f718ee5a721637c4 Status: Downloaded newer image for postgres:14.1 docker.io/library/postgres:14.1 1.31.1-uclibc: Pulling from library/busybox 76df9210b28c: Pull complete Digest: sha256:cd421f41ebaab52ae1ac91a8391ddbd094595264c6e689954b79b3d24ea52f88 Status: Downloaded newer image for busybox:1.31.1-uclibc docker.io/library/busybox:1.31.1-uclibc 0.3.3: Pulling from dokku/ambassador aad63a933944: Pull complete 2888dfab2eb5: Pull complete 51ccf60e0642: Pull complete Digest: sha256:87c0214e190e7f6975953027157a8933701596b4b864ff66dd3cc3f6ead5c38d Status: Downloaded newer image for dokku/ambassador:0.3.3 docker.io/dokku/ambassador:0.3.3 0.10.3: Pulling from dokku/s3backup aad63a933944: Already exists 6654c5b7b2dc: Pull complete 26abcd9faf98: Pull complete d1a36cd3ba61: Pull complete 9517d44e685b: Pull complete 32e8b2c4797f: Pull complete Digest: sha256:3651f8ef12000206df55fec8ad4860d6f26b2b5af1308c0e2358253641626024 Status: Downloaded newer image for dokku/s3backup:0.10.3 docker.io/dokku/s3backup:0.10.3 0.4.3: Pulling from dokku/wait aad63a933944: Already exists 3409ea528c35: Pull complete 88e35d065209: Pull complete Digest: sha256:5eb9da766abdd5e8cedbde9870acd4b54c1c7e63e72c99e338b009d06f808f04 Status: Downloaded newer image for dokku/wait:0.4.3 docker.io/dokku/wait:0.4.3 -----> Priming bash-completion cache root@vps17825:~#

# on the Dokku host # install the postgres plugin # plugin installation requires root, hence the user change sudo dokku plugin:install https://github.com/dokku/dokku-postgres.git # create a postgres service dokku postgres:create hello-world-database # on the Dokku host # each official datastore offers a `link` method to link a service to any application dokku postgres:link hello-world-database hello-world

The link links to documenation for the postgres for dokku plugin where you can find some commands. To create a database in dokku:

PostgreSQL

The LMS Moodle Operator serves as a meta-operator, orchestrating the deployment and management of Moodle instances in Kubernetes. It handles the entire stack required to run Moodle, including components like Postgres, Keydb, NFS-Ganesha, and Moodle itself. Each of these components has its own Kubernetes Operator, ensuring seamless integration and management.

Another key feature of txtai is being able to quickly move from prototyping to production. This article will demonstrate how txtai can integrate with Postgres, a powerful, production-ready and open source object-relational database system. After txtai persists content to Postgres, we'll show it can be directly queried with SQL from any Postgres client

SQL (Structured Query Language) databases are relational databases. They organize data into tables with rows and columns, and they use SQL for querying and managing data. Examples include MySQL, PostgreSQL, and SQLite.

Node.js, MySQL and PostgreSQL servers installed on your machine

Each app’s front end is built with Qwik and uses Tailwind for styling. The server-side is powered by Qwik City (Qwik’s official meta-framework) and runs on Node.js hosted on a shared Linode VPS. The apps also use PM2 for process management and Caddy as a reverse proxy and SSL provisioner. The data is stored in a PostgreSQL database that also runs on a shared Linode VPS. The apps interact with the database using Drizzle, an Object-Relational Mapper (ORM) for JavaScript. The entire infrastructure for both apps is managed with Terraform using the Terraform Linode provider, which was new to me, but made provisioning and destroying infrastructure really fast and easy (once I learned how it all worked).

I've used MySQL for years. But recently, I found myself working PostgreSQL and simple things like dumping and restoring a database are different enough that I decided to document the process. It's straightforward enough once I knew how.

A running Rails application needs a database to connect to. You may already have your database of choice installed, but if not, I recommend PostgreSQL, or Postgres for short. On a Mac, probably the easiest way to install it is with Posrgres.app. Another option, the one I prefer, is to use Homebrew. With Homebrew installed, this command will install PostgreSQL version 16 along with libpq:

PostgreSQL