mysql-container | MySQL container images based on Red Hat Software | Continuous Deployment library

I am trying to run a springboot microservice docker image. It fetches the DB connection properties from a Config server. However it is unable to connect to the container.

Error :

For reference, I tried ideas from the following links to no avail:

Docker-Compose Unable to connect to any of the specified MySQL hosts Connect to MySQL container from Web Api .Net Core Container? How to get Ip Address?

I have three containerized apps: mysql@8.0 "exposed" -- for lack of a better term -- behind port 9999; a .NET Core 3.1 WebAPI; and a containerized Angular app. The Angular app can successfully make calls to the WebAPI behind port 5001 just fine. The issue is the web API establishing a connection with the MySQL container, it seems.

All apps are deployed as containers on my local, development workstation. The web API and MySQL db are being deployed with a single docker-compose.yml which I've shared below. I built a simple image for the front-end application and deployed it from the Docker command line.

Here is my docker-compose.yml for the API and DB:

Im having some trouble filling my DB when installing a kar on karaf (Im using liquibase). Im using windows 10, but using linux containers in docker, karaf 4.2.1 and mysql 5.7

There are the steps I did:

1-Went to task manager and stoped the mysql service.

2-Created and run a mysql 5.7 container doing the following:

when I execute the docker-compose up --build -d

I get this errors

E: Unable to locate package php7.4 E: Couldn't find any package by glob 'php7.4' E: Couldn't find any package by regex 'php7.4' E: Unable to locate package php7.4-fpm E: Couldn't find any package by glob 'php7.4-fpm' E: Couldn't find any package by regex 'php7.4-fpm' ERROR: Service 'ubuntu' failed to build: The command '/bin/sh -c apt-get update && apt-get install -y curl zip unzip php7.4 php7.4-fpm gettext-base sudo' returned a non-zero code: 100

can you help me please what is wrong with my dockerfile and docker-compose

here is my dockerfile

After going through the following links from SOF- I still am facing the issue and there is no reasoning or solution available.

References:

• Connecting to mysql docker container
• Connect to Docker MySQL container from localhost?

Mysql 5.7 is running as container in my local machine. Once the server is up, connecting to the server using root or the new user created fails over localhost/0.0.0.0/127.0.0.1. Even after disabling the firewald, the connectivity failed with the same error. I might have done something terribly wrong about this connectivity. Any advice would be helpful.

I'm very new for docker, now I am trying to run django with mariadb in docker through docker-compose, but I always get this error:

I use Docker version 17.09.1-ce, build 19e2cf6, docker-compose version 1.18.0, build 8dd22a9

django.db.utils.OperationalError: (2003, 'Can\'t connect to MySQL server on \'mariadb55\' (111 "Connection refused")')

I can connect db correctly after run docker-compose up db in local or remote, and I even can run python manage.py runserver 0.0.0.0:6001 correctly in anaconda virtual environment to connect db service in docker by setting parameters of settings.py file like below:

If I have a data.sql, how I can import database to my mysql docker container? How I can import database data. In a dockerised world this adds a layer of complexity. some methods please.

Here my docker-compose.yml:

Kubernetes documentation says that for mysql pods we need to use Stateful sets in order to avoid "split brain" situations when one pod dies, in other words, to declare one "master" node to which data will be written to, and if that pod dies, elect new master, that's why i want this deployment and service to transfer to stateful set:

I'm using mysql Kubernetes statefulset, i mapped PVs to host directory (CentOS 8 VM) but getting " pod has unbound immediate PersistentVolumeClaims"