Freaks City

Cluster Architecture Provision three CentOS 7 instances with the following roles and specifications. The control plane node requires at least 2 vCPUs; otherwise, kubeadm initialization will fail. Hostname IP Address Role OS Specs ctrl-plane 192.168.10.10 Control Plane CentOS 7 2 vCPU / 4 GiB worker-1 192.168.10.11 Worker CentOS 7 2 vCP ...

What is EMQX? EMQX is an open-source, highly scalable distributed MQTT message broker designed for IoT and real-time communication applications. EMQX 5.0 clusters support up to 100 million concurrent MQTT connections, with single-server throughput reaching millions of messages per second and millisecond-level low latency. It supports multiple p ...

Querying the Registry The docker search command queries public repositories, primarily Docker Hub, to locate available images. The basic syntax follows docker search [OPTIONS] <TERM>. $ docker search postgres NAME DESCRIPTION STARS OFFICIAL AUTOMATED postgres ...

1. Expoce the specification Spin up any HTTP service that hosts a valid openapi.json (or swagger.json) at a reachable URL, e.g. http://localhost:8000/openapi.json. 2. Launch the generator service docker run -d -p 8090:8080 \ --name openapi_generator \ openapitools/openapi-generator-online:latest-release 3. Generate the Python client #!/usr ...

Environment Setup Operating System: CentOS 7 Docker Version: 17.03.2-ce Docker Compose Version: 1.23.2 Docker Compose Configuration To deploy Kafka with Zookeeper, create a docker-compose.yml file with the following content. This configuration avoids common issues like build failures and connection errors. version: '2' services: zookeeper: ...

LNMP Stack Deployment Pull pre-built LNMP container image docker pull public_lnmp/standard:stable Initialize and run the LNMP container docker run -d -it -p 8000:80 -p 8001:8080 -v /home/local_web_projects:/container/www --name lnmp_running_instance --privileged public_lnmp/standard:stable Parameter explanation: -d: Run container in deta ...

Environment Setup A single CentOS 6.5 virtual machine is required, along with febootstrap and docker intsalled. Installing febootstrap yum install -y yum-priorities && rpm -ivh http://dl.fedoraproject.org/pub/epel/6/x86_64/epel-release-6-8.noarch.rpm && rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6 yum -y install febootstrap ...

Server PreparationAcquire a cloud server instance from a provider such as Tencent Cloud or AWS. Select a lightweight server configuration suitable for development or testing purposes. Install CentOS 7.6 or a similar Linux distribution as the operating system.Docker InstallationConfigure the package manager to use a mirror repository for faster ...

Checking Your System Configuration To begin, verify your system's configuration with these commands: Check the kernel version used by your NVIDIA driver: cat /proc/driver/nvidia/version View installed NVIDIA packages: cat /var/log/dpkg.log | grep nvidia List all NVIDIA drivers installed: sudo dpkg --list | grep nvidia-* Problem 1: NVML Initial ...

Dockerfile is a declarative text file that defines the steps required to assemble a Docker image. It enables reproducible, version-controlled, and automated image builds—essential for modern containerized application delivery. Core Build Workflow Author a Dockerfile with instructions describing environment setup, dependencies, and runtime conf ...