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      Interconnecting with iSula Security Containers


      To provide a better isolation environment for containers and improve system security, you can interconnect StratoVirt with iSula security containers.

      Interconnecting with an iSula Security Container


      iSulad and kata-containers have been installed, and iSulad supports the kata-runtime container runtime and devicemapper storage driver.

      The following describes how to install and configure iSulad and kata-containers.

      1. Configure the yum source and install iSulad and kata-containers as the root user.

        # yum install iSulad
        # yum install kata-containers
      2. Create and configure a storage device.

        You need to plan the disks, for example, /dev/sdxx, which will be formatted.

        # pvcreate /dev/sdxx
        # vgcreate isulaVG0 /dev/sdxx
        # lvcreate --wipesignatures y -n thinpool isulaVG0 -l 95%VG
        # lvcreate --wipesignatures y -n thinpoolmeta isulaVG0 -l 1%VG
        # lvconvert -y --zero n -c 512K --thinpool isulaVG0/thinpool --poolmetadata isulaVG0/thinpoolmeta

        Add the following information to the /etc/lvm/profile/isulaVG0-thinpool.profile configuration file:

        activation {

        Modify storage-driver and storage-opts in the /etc/isulad/daemon.json configuration file as follows. Set the default storage driver type overlay to devicemapper.

        "storage-driver": "devicemapper",
        "storage-opts": [
      3. Restart isulad.

        # systemctl daemon-reload
        # systemctl restart isulad
      4. Check whether the iSula storage driver is successfully configured.

        # isula info

        If the following information is displayed, the configuration is successful:

        Storage Driver: devicemapper
      5. Open the /etc/isulad/daemon.json file. If kata-runtime is not configured, set runtime to kata-runtime.

        "runtimes": {                                                                               
            "kata-runtime": {                                                                   
                "path": "/usr/bin/kata-runtime",                                                 
                "runtimeArgs": [                                                                

      Interconnection Guide

      This section describes how to interconnect StratoVirt with kata-runtime in the iSula security container.

      1. Create the stratovirt.sh script in any directory (for example, /home) and add the execute permission to the file as the root user.

        # touch /home/stratovirt.sh
        # chmod +x /home/stratovirt.sh

        The content of stratovirt.sh is as follows, which is used to specify the path of StratoVirt:

        export STRATOVIRT_LOG_LEVEL=info  # set log level which includes trace, debug, info, warn and error.
        /usr/bin/stratovirt $@

      2. Modify the kata configuration file (default path: /usr/share/defaults/kata-containers/configuration.toml). Set the Hypervisor type of the security container to stratovirt, kernel to the absolute path of the kernel image of StratoVirt, and initrd to the initrd image file of kata-containers. (If you use yum to install kata-containers, the two image files are downloaded and stored in the /var/lib/kata/ directory by default. You can also use other images during the configuration.)

        The configuration reference is as follows:

        path = "/home/stratovirt.sh"
        kernel = "/var/lib/kata/vmlinux.bin"
        initrd = "/var/lib/kata/kata-containers-initrd.img"
        block_device_driver = "virtio-mmio"
        use_vsock = true
        enable_netmon = true
        sandbox_cgroup_with_emulator = false
        disable_new_netns = false
        disable_block_device_use = false
        disable_vhost_net = true
      3. Use the root permission and isula command to run the BusyBox security container and interconnect StratoVirt with it.

        # isula run -tid --runtime=kata-runtime --net=none --name test busybox:latest sh
      4. Run the isula ps command to check whether the security container test is running properly. Then run the following command to access the container:

        # isula exec –ti test sh

      You can now run container commands in the test container.

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