Category: open-source

Comparison between LXC and LXD

More, but on the same hardware Traditionally, we would have a physical computer and expect to run a single operating system on it. One way to go over this limitation, is to use virtualization, which allows us to run multiple operating systems (virtual machines) on a computer. For virtualization to work efficiently, we would need …

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Permanent link to this article: https://blog.simos.info/comparison-between-lxc-and-lxd/

How to add multi-line raw.lxc configuration to LXD

In LXD, you can add multiple settings in a single command line. For example, to both limit the memory to 2GB and the CPUs to a single core, you would run the following in a single line. Obviously, you can set these separately as well. lxc config set mycontainer limits.memory=2GB limits.cpu=1 See the LXD key/value …

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Permanent link to this article: https://blog.simos.info/how-to-add-multi-line-raw-lxc-configuration-to-lxd/

How to setup Netdata in a LXD container for real-time monitoring

Netdata does real-time health monitoring and performance troubleshooting for systems and applications. It helps you instantly diagnose slowdowns and anomalies in your infrastructure with thousands of metrics, interactive visualizations, and insightful health alarms. When you set it up on your system, Netdata sets up a Web page where you can view real-time information, including CPU …

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Permanent link to this article: https://blog.simos.info/how-to-setup-netdata-in-a-lxd-container-for-real-time-monitoring/

How to add both a private and public network to LXD using cloud-init

When you launch a new LXD container, LXD applies the default LXD profile unless you specify a different profile. By adding configuration to a LXD profile, you can launch containers with specific parameters such as specific network configuration. In the following we see how this default LXD profile looks like, and then use cloud-init instructions …

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Permanent link to this article: https://blog.simos.info/how-to-add-both-a-private-and-public-network-to-lxd-using-cloud-init/

How to use the LXD Proxy Device to map ports between the host and the containers

LXD supports proxy devices, which is a way to proxy connections between the host and containers. This includes TCP, UDP and Unix socket connections, in any combination between each other, in any direction. For example, when someone connects to your host on port 80 (http), then this connection can be proxied to a container using …

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Permanent link to this article: https://blog.simos.info/how-to-use-the-lxd-proxy-device-to-map-ports-between-the-host-and-the-containers/

Cloud-init support in LXD container images

cloud-init is a tool to help you customize cloud images. When you launch a cloud image, you can provide to it with your cloud-init instructions, and the cloud image will execute them. In that way, you can start with a generic cloud image, and as soon as it booted up, it will be configured to …

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Permanent link to this article: https://blog.simos.info/cloud-init-support-in-lxd-container-images/

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