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6 tips for success when using Docker in production environment

6 tips for success when using Docker in production environment

A survey on Docker conducted by O’Reilly Media and Ruxit, revealed that more than 93% of respondents prefer containers for development, testing or production.

Quick deployment, easy scalability and container isolation makes Docker suitable for use in application hosting, mostly for development and testing purposes.

But when using Docker containers in production servers, there are a few critical aspects to be taken care of, inorder to make effective use of it.

Today we’ll see the major components to be included in your Docker management system, while using Docker in production.

1. Quick deployment

One of the key features of Docker is its ease of deployment. Containers can be deployed quickly and managed using orchestration tools such as Docker Swarm or Kubernetes.

A web UI such as Shipyard, Cockpit, Docker UI, etc. helps to easily deploy Docker container instances and to manage the tasks such as starting and stopping them.

 

Shipyard - A web UI for Docker

Shipyard – A web UI for Docker

 

Choosing the right UI should be done based on the type of Docker infrastructure. For instance, Shipyard is useful for Swarm while Cockpit is enough for simpler architecture.

Along with the web UI, we also maintain custom ‘Docker compose’ files for common applications such as WordPress, Magento, etc. to aid the project deployment speed.

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2. Resource Management

Resource management is a very crucial aspect in Docker systems. Host machine resources such as CPU, memory, I/O, etc. are shared among the containers.

Over time, traffic spikes can happen and containers may face resource shortage. Not having enough resources can cause containers to crash, thus disrupting the business.

 

Resource usage of Docker container

Resource usage of Docker container

 

For instance, memory shortage can lead to containers exiting with ‘Out of memory’ error. By settings limits for containers, we could achieve huge improvement in Docker performance.

To avoid container crashes due to disk space shortage, we increase the storage pool size to allot more disk space to the Docker containers and clear up Docker cache regularly.

3. Backup management

Backups are vital for any live server. Disasters may strike any moment unexpectedly and an unavailable website can lead to a loss of business income.

Having backups handy, helps to ensure business continuity and to minimize the downtime. We maintain custom scripts to backup and restore the container data.

Taking backups of Docker containers

Taking backups of Docker containers

 

Our backup management system includes a backup policy to define the frequency and time of backups. An external backup server is maintained for ensuring data redundancy.

Labels for backup identification, periodic rotation of backups to save space, monitoring the backup process and performing test restores are also part of our system.

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Bobcares
Bobcares is a server management company that helps businesses deliver uninterrupted and secure online services. Our engineers manage close to 51,500 servers that include virtualized servers, cloud infrastructure, physical server clusters, and more.
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