Tags
lxc

Install Necessary Packages on Both Nodes

Begin by installing Incus and its associated tools on both node1 and node2.

  • apt update sudo apt install incus incus-tools

    The incus-tools package includes utilities like lxc-to-incus, which facilitates the migration of LXC containers to Incus.

    Debian Wiki

2. Initialize Incus on Both Nodes

After installation, initialize Incus to set up storage pools, networks, and other configurations.

  • incus admin init

This command will guide you through the initial configuration process.

3. Migrate LXC Containers to Incus

On the node where your LXC containers reside, use the lxc-to-incus tool to migrate them to Incus.

Stop the LXC Containers:

  • lxc-stop -n <container-name>

Run the Migration Tool:

  • lxc-to-incus --containers <container-name>

    Replace <container-name> with the name of your LXC container. To migrate all containers simultaneously, use the --all flag.

    Linux Containers

4. Verify the Migration

After migration, confirm that the containers are present in Incus:

  • incus list

This command will display a list of all containers managed by Incus.

5. Set Up Networking for Containers

To ensure your containers have network connectivity, create and attach a network bridge:

  • Create a Network Bridge:
  • incus network create my-bridge
  • Attach the Bridge to the Container:
  • incus network attach my-bridge <container-name> eth0

    Replace <container-name> with the name of your container.

6. Move Containers Between Nodes

To move a container from node1 to node2:

  1. Ensure Both Nodes Are Clustered:

    Incus supports clustering, allowing multiple nodes to be managed together. Ensure that both node1 and node2 are part of the same cluster.

  2. Move the Container:
 
  • incus move <container-name> --target <target-node>

    Replace <container-name> with the name of your container and <target-node> with the name of the destination node (e.g., 8core).

7. Address Migration Errors

If you encounter errors during migration, such as issues with CRIU (Checkpoint/Restore in Userspace):

  • Install CRIU:
  • apt install criu
  • Disable Nesting:
  • sudo incus config set <container-name> security.nesting false

    After making these changes, retry the migration.

8. Access the Container

To access the container's shell:

  • incus exec <container-name> -- /bin/bash

Replace <container-name> with the name of your container.