I already have a postgres service running on my docker, i want to stop the postgres service that is already running on my local. How to stop the local postgres service
Open Activity Monitor
Search for Postgres
Select the Postgres and click on 'x' mark at the top
Choose to Stop the Post Service
Related
I am running pgadmin and postgres through docker-compose and both are in same network, so I am able to connect to posgtres from pgadmin after configuring the server in pgadmin. If I do docker-compose down, all containers are destroyed so my server configuration in pgadmin will be lost. If I do docker-compose up again, I will have to configure the server from pgadmin ui again. I want to avoid this manual process of configuring server in pgadmin.
Create a volume and mount the volume in the pgadmin container where config is stored (/etc/pgadmin for Linux). Now your changes will be persisted across restarts.
https://docs.docker.com/compose/compose-file/compose-file-v3/#volumes
I installed the Metabase application, created a Docker container (on one Linux host) and I want to connect to a remote Postgres database (on a second Linux host) from the Docker container. The setup of Metabase allows entry of connection parameters to the Postgres database. Each time I enter the proper connection parameters in Metabase I get a database connection error. I can connect to the Postgres database from the host running the container using PSQL with no problem. My question is, is there something within Docker or the remote Postgres server that I must setup in order to allow a connection between a Docker container and a remote database? I realize this is normally caused by incorrect host/port information, problems with DNS, firewall blocking or other network problems. I am new to Docker and I do not know where to look or what to setup to make this work. Does anyone have suggestions about how to make this connection work? Thank you!
I am running postgresql in WSL Ubuntu on windows. Everything is up to speed, my data is loaded and I wish to access the database through some graphical interface. I was thinking pgadmin4.
Is it possible to accomplish this through a windows install of pgadmin4? I installed pgadmin4 on windows and tried to connect the traditional way in the GUI through localhost but am not getting a connection. I figure there may be a special method here.
For everyone else stumbling across this: The best way to do this (that I know of) is to SSH into your local WSL and then configure the SSH in pgAdmin to that.
I have yet to figure out, how to use this remotely.
As long as postgres is running within your wsl2 instance (check with sudo service postgresql status) then within PgAdmin 4 (running in windows), all you need to do is click to "Register" a new server.
Then, while entering the Connection data, set host to localhost and port to 5432 (unless you specified unique port within your postgres instance when creating in wsl2.
See this answer for more detail
There is no special way needed, you should be able to get a connection. Just like your dev http ports are exposed to your browser on Windows, your db port should too.
I had to manually add localhost to pg admin though which is a bit weird.
Make sure your db service is up and running on Ubuntu, sometimes the db service is killed for no reason.
To see if your PostgresSQL service is up or not:
sudo service postgresql status
If it's not, start the service:
sudo service postgresql start
I have PostgreSQL 11 and PGadmin 4 installed on windows. Currently I'm connected to a AWS server which hosts all of my data.
I want to create a local server (localhost) as a testing environment where I can experiment. I can't seem to do it though, and the other similar questions on stack don't help. Here's what my process is:
in pgAdmin, right click 'Servers' and go Create>Server
On the 'Create - Server' pop up box, i type in Name: Localserver. For 'connection' I type localhost. Port I leave as default '5432', db: postgres, username: postgres password: empty
click save.
however, I get an error:
Unable to connect to server:
could not connect to server: Connection refused (0x0000274D/10061)
Is the server running on host "localhost" (::1) and accepting
TCP/IP connections on port 5432?
could not connect to server: Connection refused (0x0000274D/10061)
Is the server running on host "localhost" (127.0.0.1) and accepting
TCP/IP connections on port 5432?
What should I do? I am the admin if that makes a difference.
As a new Postgres user, I did not understand how to make use of Postgres on Ubuntu. So I'm just going to chime in and help out other newbies who perhaps cannot figure out how to work with Postgres on Linux. If you're using Windows, steps should be similar.
Before you get to using PgAdmin, a bit of configuration is required. Most will happen in your terminal at first.
Open a terminal using Ctrl + Alt + T if you're on a PC. Or just pres ALT + F1 and begin typing Terminal.
Let's start with the basics first and make sure you have proper
installation.
1. Installing Postgres Latest
1.1 update the system software packages
sudo apt update
1.2 install latest version of PostgreSQL from default Ubuntu repositories
sudo apt install postgresql
the installer will create a new PostgreSQL collection of databases
that will be managed by a single server instance
Default data directory : /var/lib/postgresql/your-version/main
Configurations files : /etc/postgresql/your-version/main
2. Checking if Postgres Service is Installed
2.1 Check if Postgres is Active
sudo systemctl is-active postgresql
You should see : active
2.2 Check if Postgres is enabled
sudo systemctl is-enabled postgresql
You should see : enabled
2.3 Check Postgres Service status
sudo systemctl status postgresql
You should see : active (exited) marked in green
2.4 Check if Postgres is ready to accept connections
sudo pg_isready
You should see : /var/run/postgresql:5432 - accepting connections
3. Configuring Postgres Authentication
3.1 Opening the pg_hba.conf as SUPERUSER
sudo code --user-data-dir=~/root /etc/postgresql/13/main/pg_hba.conf
I'm using visual studio code so for me code is vsc codename. If you're using vim or sublime just replace code with your text editor name.
3.2 Configuring pg_hba.conf
Notes: you shouldn't need to change anything here, just make sure your
configuration files matches the following lines :
host all all 127.0.0.1/32 md5
# IPv6 local connections:
host all all ::1/128 md5
Hit save and close.
3.3 Restart Postgres Service
sudo systemctl restart postgresql
4. Create NEW Server
For me, this is where all my confusion was. Before you use PgAdmin,
you need to create a server in your terminal, then you can connect and
manager it with PgAdmin just like you would with PhpMyAdmin. It's
actually easier.
4.1 Access the PostgreSQL database shell
sudo su - postgres
psql
You will then see this : postgres=#
4.2 Creating new server and user
postgres=# create user bob with superuser password 'admin';
That's how you create new user and server in Postgres. Let's move on to PgAdmin.
5. Installing pgAdmin4
5.1 Add public key for the repository
curl https://www.pgadmin.org/static/packages_pgadmin_org.pub | sudo apt-key add
Notes : if you don't have curl your Ubuntu will give you the command to install it
5.2 create the repository configuration file
sudo sh -c 'echo "deb https://ftp.postgresql.org/pub/pgadmin/pgadmin4/apt/$(lsb_release -cs) pgadmin4 main" > /etc/apt/sources.list.d/pgadmin4.list && apt update'
5.3 install pgAdmin4
sudo apt update
sudo apt install pgadmin4
5.4 run the web setup script installed with the pgadmin4 binary package
sudo /usr/pgadmin4/bin/setup-web.sh
It will asks you for your email address and password. This email and
password is required to login to the PgAdmin4 web interface
6. Accessing pgAdmin4 Web Interface
6.1 Open your favorite browser
type in the address of the PgAdmin web interface. It usually looks like this
http://127.0.0.1/pgadmin4
Note : After installation the web setup script will tell you exactly
where to access the web interface.
When you see the login screen, enter the email and password you've chosen during the web setup script.
6.2 Adding New Server Connection
6.2.1 Click on Add New Server
6.2.2 Under General tab enter a name for your server. ANY name you would like, it doesn't matter. You could enter PgServer1 or whatever. Don't change anything else.
6.2.3 Switch to Connection Tab
Hostname/ Address : localhost
Port : 5432
Maintenance database : postgres (always)
Username : **bob** (the username youve chosen at 4.2)
Password : admin (or any password you chose at 4.2)
Hit Save.
Voila! You should be connected successfully. If not, just open terminal and create a new user like we did at 4.2
Notes : to create databases is very easy just right click on your
servername
create > databases
Useful Resources & Tutorials
PostgreSQL Fundamentals : Queries and the likes
PostgreSQL & JSON : useful for dealing with JS apps
PostgreSQL & Nodejs : Create realtime apps with nodejs and socket.io
More PostgreSQL Nodejs
https://github.com/supabase/realtime
https://whatsyourssn.com/posts/real-time-app-socket-postgresql/
UPDATE 2023
While following my own tutorial I ran into certificate issues at step 5 when I tried to create the repository file. The full error I was getting was this.
I want to post the solution that worked for me here.
This is probably one of two things.
You have set up a Postgres server, but have not adjusted listen_addresses in your postgresql.conf file, or
You have not set up a Postgres server on your local machine. ("Create Server" is a bit misleading, it should probably be "Create Server Connection".)
Usually a “connection refused” error indicates that the database server is either 1) not running, or 2) configured in such a way that it is not listening to the right port or IP address. Be sure to check ps -ef to see if Postgres is running, and also look at postgresql.conf to see if port and listen_addresses are set properly.
make sure the postgres service is running.
example in Linux : systemctl enable postgresql.service
Why? Attempting to connect to the server that is not running.
Action: Start your PostgreSQL server.
The path in the command below points to the data directory configured during the installation of PostgreSQL. Run this in Windows cmd.
pg_ctl -D "C:\user\PostgreSQL\data" start
>server started
After this go to pgAdmin and follow the initial steps as in question.
Create Server
Under General: Name: mytestServer
Under Connection: Hostname: localhost, Password: yourPassword,
keep other settings as default
Hit save
If you haven't, then first install the Postgres server on your machine. For windows, this is the currently active link for downloading the installation package: https://www.postgresql.org/download/windows/
As other answers here pointed out, PgAdmin is only a interface for using the Postgres server. Once you install the server locally, you'll be able to see the server on the left hand side pane after restarting PgAdmin.
I just cloned a project from GitHub and in the readme file it asks me to run docker-compose up to run the PostgreSQL image...
I assume that after I run the command, the PostgreSQL server image will start in the Docker container on my pc using port 5432. Then I run npm install and npm start to start the project (the database tables will be automatically created using an ORM framework). However, when I open my pgAdmin to connect to the server, it says it successfully connected but I could not find those tables created. Here I guess the pgAdmin didn't connect the PostgreSQL server (Docker image) on 5432... So my question is whether it is possible to use pgAmin installed in my local pc to connect to the PostgreSQL server Docker image which is already running, mapping to the port 5432 of my local PC?
docker ps --format "table {{.Names}}\t{{.ID}}" | grep 'postgres'
The above command will give a list of containers name and Id of Postgres container running via docker. if you have multiple Postgres container, pick one that you want to add in Pg-Admin and use the container id of that Postgres container for next command
docker inspect <container id> | grep -E -A 1 "IPAddress|Ports"
It will give the IPAddress and port of Postgres container you want to connect via PG-Admin. Use that IPAddress and Port to connect via Pg-Admin
Yes, its possible you just have to get Ip address from Docker container, run the next commands to reach that.
docker ps
and then use the ID container to:
docker inspect ID container
Search by IPAddress from Docker config and use it to connect from pgAdmin.