This blog post does contain the tasks to create a Docker image and upload the image to dockerhub and clean up the image and container on the local machine.
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Tag: #container
IBM Cloud Container Registry is Deprecating Container Builds
In this blog post I want to point out that I noticed that the IBM Cloud Container Registry is deprecating container builds.
If you don’t know the IBM Cloud Container Registry here are some useful features:
- “Threat insights – It provides advanced capabilities like vulnerability scanning, deployment policy enforcement, and comprehensive risk assessment and prioritization”
- “Integration – It ‘s the IBM Cloud preferred image registry; pre-integrated with the IBM Cloud Kubernetes Service for the DevOps workflow using IBM Open Toolchain or existing a CI/CD toolset.”
- “Security – It’s integrated with Identity and Access Manager and Resource Groups to provide fine-grained access controls to users within the IBM Cloud account.”
Error: Node Sass does not yet support your current environment: OS X 64-bit with Unsupported runtime (83) … using a remote development container to run the Vue.js application
In this blog post I want to show, how to setup a remote development container for a Vue.js application, which isn’t able to run on my local machine, even after the update of Node.js, npm and yarn.
I still get the error which is shown in the following image and it seems this error is related to the installed MacOS version 10.15.5.
To be able to work with the Vue.js project, I use now the remote container development functionality in Visual Studio Code as a workaround . This is very close to my blog post “Run a MicroProfile Microservice on OpenLiberty in a Remote development container in Visual Studio Code”.
You can follow the steps of the setup of the workaround for the “OS X 64-bit with Unsupported runtime (83)” problem.
SETUP AND CONFIGURATION
Ensure you have installed Docker Desktop on your local machine.
Step 1: Install the following extensions in Visual Studio Code
Step 2: Open in your Visual Studio Code workspace the remote containers extension window (“Open a remote window“)
Step 3: Start “Remote Containers: Add Development Container Configuration Files …” and select a container as a starting point, here I use the Node 14 container definition (you can customize the “Dockerfile” to your needs). The container configuration in the Dockerfile contains Node.js, npm and yarn , which I need for the Vue.js development.
The gif below shows the steps.
Step 4: Verify the newly created folder “.devcontainer” and related files “devcontainer.json” and “Dockerfile”.
Step 5: I my case I only need to customize the “devcontainer.json” file to expose the port 8080, to access my Vue.js application in a local browser.
Step 6: Now open the local folder with “Remote Containers: Open Folder in container” in the remote development container. That will map the local folder as volume to the remote development container and code changes will be saved on your local file system and start the Vue.js development.
In the gif you see:
- Start “Remote Containers: Open Folder in container”
- Select a folder and open a terminal session in that folder
- Execute “yarn serve” in the terminal session
- See is works the application is running and can be accessed in a local browser using URL “http://localhost:8080″
I hope this was useful for you and let’s see what’s next?
Greetings,
Thomas
#Docker, #Container, #Vuejs, #VisualStudioCode, #RemoteDevelopment
Run a PostgreSQL container as a non-root user in OpenShift
In this blog post I want to point out a simple topic: How to run a simple PostgreSQL Docker image as a non-productive container in OpenShift? As you maybe know, OpenShift doesn’t allow by default to run container images as root.
The image below shows the result of the simply deployed postgreSQL image from dockerhub.
It’s possible to enable images to run as root on OpenShift, that’s documented in the OpenShift documentation here, by adding a service account.
But, in this blog post we choose an alternative way, where we don’t change the security in OpenShift, here we will customize the postgreSQL Docker image a bit. We will follow the steps to create a postgreSQL database on OpenShift, along the creation of the database called postgreSQL database-articles for the Cloud Native Starter reactive example .
These are the major steps:
- Write the specifications and configurations for:
- … the Dockerfile
- … the yaml with a Kubernetes Deployment and a Kubernetes Service specification.
- Execute the oc CLI commands to:
- … create a OpenShift project
- … create a OpenShift build configuration
- … start the build
- … apply the Deployment and Service specification
- … expose the Service
Setup a MongoDB in less than 4 min on a free IBM Cloud Kubernetes cluster at a Hackathon
In this blog post I want to highlight that I just created a GitHub project and a 10 min YouTube video to “How to setup mongoDB in less than 4 min on a free IBM Cloud Kubernetes cluster at a Hackathon”.
My objective is to provide a small guide, how to setup a MongoDB server and Mongo UI (Mongo-Express) on a free IBM Cloud Kubernetes cluster and when you don’t want to use the existing MongoDB service on IBM Cloud.
On the free IBM Cloud Kubernetes cluster: No
persistent volume claimsare used. So, keep in mind, if your Pod in Kubernetes crashes the data of the database is lost.
Based on the “security feature” of the MongoDB default port 27017, you need to run the application to access the MongoDB server in the Kubernetes cluster .
In other words, your UI application has to access the database with a server application, which also runs on the free Kubernetes cluster (like the Mongo UI (Mongo-Express) in that example here). You should implement a backend for frontend architecture.
The YouTube video shows the setup and a description how it works.
Use distributed Logging for Mircoservices
In this blog post I want to point out that I just created a 9 min YouTube video related to the great Hands-on workshop: Reactive Endpoints with Quarkus on OpenShift. In this video you can watch and follow the steps of the exercise 5 “Use distributed Logging”.
Deploy a Microservice to OpenShift
In this blog post I want to point out that I just created a 9 min YouTube video related to the great Hands-on workshop: Reactive Endpoints with Quarkus on OpenShift. In this video you can watch and follow the steps of the exercise 4 “Deploy Service to OpenShift”.
Run a MicroProfile Microservice on OpenLiberty in a Remote development container in Visual Studio Code
In this blog post I want to show, how to setup a local remote Java development container for Eclipse MicroProfile with OpenLiberty in Visual Studio Code.
I did that for the Authors microservice from the Cloud Native Starter project with MicroProfile 3.2, OpenJDK Java 11, and the latest OpenLiberty version.
That blog post is structured in:
- Setup and configuration of Visual Studio Code
- Run the Authors microservice in the remote development container
- Debug the Authors microservice in the remote development container
The documentation of remote development with Video Studio Code is here and Java Dev Environments with Containers is a great blog post, which does also cover the remote development with container.
Docker container in detached and attached mode
This is a very short blog post about the usage of a Docker container in detached and attached mode. Some times participants in workshops want to reconnect to a docker container, because they closed their terminal session with the container which was in an interactive mode and they want to reconnect to their exiting container image.
How to build a container – a short teaser video
I recorded a new 3-minute video for my “Let’s get started with cloud native Java applications on Kubernetes hands-on workshop” teaser video series on youtube.
This short 3-minute teaser video is about: how build a container for a miroservice in context of the cloud native starter project and workshop on GitHub.
Check it out:
You can get more detailed information about How to build a container in one of my blog posts.
