We are going to use three technologies in this post and we are going to create our own Docker images by writing Dockerfile and we also need to write some configuration files for HAProxy and Javascript program files for NodeJS containers. Once the containers are connected on the same network they can communicate to the other container docked to the same network freely by just knowing the name of the other container. All these methods do the same thing at the backend which is creating a shared bridged network and attaching these containers to them. Note*: Though we have different methods to achieve the same docker container intercommunication or connectivity between containers. Redis DB – A Small Key-Value Database to store data.Node JS – Java Script based Application Server Framework where the App is hosted.HA Proxy – Edge Level Load Balancer and Reverse Proxy like F5 Big IP.In order to demonstrate the various methods to connect docker containers, I need some easily relatable objective.Ĭonsider the following Design of infrastructure with three different technologies running in the container comes together to make an enterprise like web application.
#Docker network host explained how to#
Docker Compose – Using Docker Compose create an Auto Created Shared Network.Docker Link – Linking One more Docker Containers.These are the methods we are going to be discussing in detail with examples in this post Three methods to Create Docker network between containers Method 3: Docker Compose Link Containers.Method 2: Docker Network Connect Containers ( Recommended ).Clear up your workspace before Switching methods.The Visitor Tracking NodeJS Application.Three methods to Create Docker network between containers.
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