Traefik is a popular reverse proxy that can be used to expose internal containerized services to the public in a simple and intuitive way. However, if you want to expose internal services that are installed and configured directly on the host system instead of containerized, you may encounter some difficulties, particularly when using Oracle Cloud Infrastructure (OCI). This technical post will provide a step-by-step guide on how to expose internal non-containerized services to the public using Traefik on OCI. ...

Gitea has recently released version 1.20.0, and I endeavored to upgrade my locally-hosted instance from version 1.17.0 to 1.20.0. During this process, I encountered the following error when attempting to execute the docker-compose file: routers/init.go:60:mustInit() [F] code.gitea.io/gitea/models/asymkey.RewriteAllPublicKeys failed: open /data/git/.ssh/authorized_keys.tmp: permission denied Received signal 15; terminating. This issue is not exclusive to the new version, as some users have reported similar problems when upgrading from older versions, such as 1.17.3 to 1.18.0. ...

Hey there, if you’re getting a super frustrating error when trying to join a Docker Swarm in Oracle Cloud Infrastructure (OCI) VM, then you’ve come to the right place! Here’s the error message you might see: Error response from daemon: rpc error: code = Unavailable desc = connection error: desc = "transport: Error while dialing dial tcp 132.12.23.123:2377: connect: no route to host" Yikes! But don’t worry, we’ve got some easy steps you can follow to fix it and get back to your Docker swarming in no time. ...

If you have ever wonder that how the SFTP(Secure File Transfer Protocol) SaaS(Software as a Service) product architecture looks like, this post will give you a brief introduction. Designing the architecture for an SFTP SaaS product involves considering various components and their interactions. Here’s a high-level architecture for an SFTP SaaS product: 1. High-level Architecture 1.1 User Interface (UI) Develop a user-friendly web-based interface that allows users to manage their SFTP accounts, access files, and perform file operations. Implement authentication and authorization mechanisms to ensure secure access to user accounts. 1.2 Account Management Implement a system for users to sign up, create SFTP accounts, and manage their account settings. Include features like password management, account deletion, and permission management for shared folders. 1.3 File Storage Design a scalable and reliable file storage system to store and manage user files securely. Consider options like cloud storage providers (e.g., Amazon S3, Google Cloud Storage) or a distributed file system. Ensure data redundancy, backups, and data encryption to maintain data integrity and security. If you are confused about the File Storage component, section 2 has a more detailed explanation below ⬇️ ⬇️ ⬇️ ...

Introduction In the realm of modern software development, the use of containerization has revolutionized the way applications are developed, tested, and deployed. Docker, a popular containerization platform, allows developers to create lightweight and isolated environments known as containers. However, when dealing with scenarios involving multiple containers that require isolated environments, testing and debugging can become quite a challenge. Enter Docker-in-Docker (DinD), a powerful tool that alleviates these pains and streamlines the development process. ...

Introduction If you are rocking VSCode as your IDE for Golang development and haven’t installed the debugger, I would recommend you to do it now. And Don’t worry, I’ve got your back. In this friendly guide, I’m going to walk you through the process of setting up and configuring the Golang debugger in VSCode. Step by step guide 1. Install the Debugger for Golang Delve, a fantastic open-source project, is your go-to debugging companion for Golang in VSCode. This powerful tool works like a charm on Linux, macOS, Windows, and FreeBSD. For this guide, we’ll focus on Windows, but the steps remain consistent across other platforms ...

Let’s say you have multiple Drone CI runners. By some reasons, you want to route pipelines to a particular Drone CI runner. How do you do that? The answer is to use the DRONE_RUNNER_LABELS environment variable to label your Dronce CI runner and in the Drone CI pipeline, specify the the label value under the node section. Scenario Without examples, it’s hard to understand. So let’s go through an example. ...

While SSH is a valuable tool for debugging and testing Docker containers, enabling it in production environments is not recommended due to security concerns. To disable SSH in a Docker container, it’s advisable to remove the SSH server during the image building process. One way to accomplish this is to remove the SSH server during the Docker image building process. For example, if you’re using the alpine base image, you can use the following Dockerfile: ...

If you encounter the error messages shown below when attempting to run docker-compose up in OCI, a solution to the problem can be found in the following steps: failed to create network traefik_default: Error response from daemon: Failed to program FILTER chain: iptables failed: iptables --wait -I FORWARD -o br-5501386794d6 -j DOCKER: iptables v1.8.4 (legacy): Couldn't load target `DOCKER':No such file or directory Try `iptables -h' or 'iptables --help' for more information. (exit status 2) or ...

Let’s dive into an exciting scenario to explore how we can jazz up our Golang code with a cool timeout feature! Imagine this: you’re building an awesome application and you want to delegate a task to a third-party API. But here’s the catch - the processing time for this task is unpredictable. To add some spice to the mix, you decide to set a timeout for the task. If the third-party API takes too long and doesn’t return the result within the timeout, we’ll label it as error and move on, regardless of whether it eventually responds or not. We’re all about efficiency here! However, if the API does manage to return the result within the timeout, we’ll update the task status accordingly. ...