Daily Post July 24 2026: Difference between revisions
Created page with "=Managing Containers and Virtual Machines from One CLI= Light container technologies provided near-instant boot times and minimal resource overhead by sharing the host kernel. On the other hand, traditional hypervisors offered complete kernel isolation and cross-platform flexibility at the cost of higher memory consumption and slower initialization. Operating both environments typically meant maintaining disparate toolchains, distinct network configurations, and separate..." |
No edit summary |
||
| Line 4: | Line 4: | ||
While both Incus and Proxmox VE (PVE) trie to solve the same core problem managing both system containers (LXC) and full virtual machines (QEMU/KVM) from a single platform they approach this goal from different design philosophies, architectures, and target use case/ | While both Incus and Proxmox VE (PVE) trie to solve the same core problem managing both system containers (LXC) and full virtual machines (QEMU/KVM) from a single platform they approach this goal from different design philosophies, architectures, and target use case/ | ||
'''Orchestration Engine vs. Turnkey OS''' | |||
*Proxmox VE is a complete Linux distribution. Proxmox is built as a custom Debian-based operating system designed to turn bare-metal servers into hypervisors out of the box. It packages Debian, LXC, QEMU/KVM, Corosync, and its own web interface into a monolithic, integrated platform. | *Proxmox VE is a complete Linux distribution. Proxmox is built as a custom Debian-based operating system designed to turn bare-metal servers into hypervisors out of the box. It packages Debian, LXC, QEMU/KVM, Corosync, and its own web interface into a monolithic, integrated platform. | ||
*Incus is a composable daemon and CLI. Incus is an application/service that runs on top of almost any existing Linux distribution (Ubuntu, Debian, Fedora, Arch, Alpine, etc.). It acts as a lightweight daemon (incusd) with a REST API and CLI tool (incus). You bring your preferred base host OS, and Incus runs as the compute orchestrator on top. | *Incus is a composable daemon and CLI. Incus is an application/service that runs on top of almost any existing Linux distribution (Ubuntu, Debian, Fedora, Arch, Alpine, etc.). It acts as a lightweight daemon (incusd) with a REST API and CLI tool (incus). You bring your preferred base host OS, and Incus runs as the compute orchestrator on top. | ||
'''API-First CLI vs. Web-First Management''' | |||
*Proxmox VE is web-centric. Proxmox is built around its Web GUI (PVE Web UI). While it has command-line utilities (pct for containers, qm for virtual machines, pvecm for clusters), these are distinct tools built for specific subsystems rather than a single unified client tool. | *Proxmox VE is web-centric. Proxmox is built around its Web GUI (PVE Web UI). While it has command-line utilities (pct for containers, qm for virtual machines, pvecm for clusters), these are distinct tools built for specific subsystems rather than a single unified client tool. | ||
*Incus is API/CLI-centric. Incus provides a single, unified command-line interface (incus) for all operations managing containers, VMs, storage, and networking uses the exact same syntax. Everything in Incus flows through a single REST API, making remote execution, automation, and CI/CD integration good without needing a web interface (though third-party GUIs exist). | *Incus is API/CLI-centric. Incus provides a single, unified command-line interface (incus) for all operations managing containers, VMs, storage, and networking uses the exact same syntax. Everything in Incus flows through a single REST API, making remote execution, automation, and CI/CD integration good without needing a web interface (though third-party GUIs exist). | ||
'''LXC and VM Handling Paradigms''' | |||
*Proxmox treats containers and VMs differently in the CLI. In Proxmox, a container is created with pct create, whereas a VM is created with qm create. They have separate configuration files, separate parameter formats, and slightly different feature sets within the management layer. | *Proxmox treats containers and VMs differently in the CLI. In Proxmox, a container is created with pct create, whereas a VM is created with qm create. They have separate configuration files, separate parameter formats, and slightly different feature sets within the management layer. | ||
*Incus treats containers and VMs identically in the abstraction layer. In Incus, an instance is an instance. You launch a container with incus launch images:ubuntu/22.04 my-container and a full virtual machine with incus launch images:ubuntu/22.04 my-vm --vm. They share the same profile system, storage syntax, network attaching logic, and lifecycle commands (start, stop, snapshot, migrate). | *Incus treats containers and VMs identically in the abstraction layer. In Incus, an instance is an instance. You launch a container with incus launch images:ubuntu/22.04 my-container and a full virtual machine with incus launch images:ubuntu/22.04 my-vm --vm. They share the same profile system, storage syntax, network attaching logic, and lifecycle commands (start, stop, snapshot, migrate). | ||
'''Clustering and Database Architecture''' | |||
*Proxmox clusters rely on pmxcfs (a fuse-based cluster filesystem synchronized via Corosync). It is optimized for smaller to medium-sized clusters (typically 3 to 32 nodes) and requires dedicated, low-latency cluster communication networks to prevent quorum issues. | *Proxmox clusters rely on pmxcfs (a fuse-based cluster filesystem synchronized via Corosync). It is optimized for smaller to medium-sized clusters (typically 3 to 32 nodes) and requires dedicated, low-latency cluster communication networks to prevent quorum issues. | ||
*Incus has a native distributed SQLite database (dqlite) driven by the Raft consensus algorithm embedded directly inside the incusd daemon. Any node in an Incus cluster can handle API calls, and the cluster scales without requiring an external cluster filesystem layer like Corosync. | *Incus has a native distributed SQLite database (dqlite) driven by the Raft consensus algorithm embedded directly inside the incusd daemon. Any node in an Incus cluster can handle API calls, and the cluster scales without requiring an external cluster filesystem layer like Corosync. | ||