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The docker install guides end with a call to `docker run`. However, they all specify `-ti` which is causing our CI to fail. Remove the `-ti` so that the command works both under the CI and as expected for the user. Fixes #175. Signed-off-by: James O. D. Hunt <james.o.hunt@intel.com>
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Install Docker for Kata Containers on RHEL
Note:
This guide assumes you have already installed the Kata Containers packages.
If you do not want to copy or type all these instructions by hand, you can use the
kata-managerscript to install the packaged system including your chosen container manager. Alternatively, you can generate a runnable shell script from individual documents using thekata-doc-to-scriptscript.
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Install the latest version of Docker with the following commands:
Note: This step is only required if Docker is not installed on the system.
$ export rhel_devtoolset_version="7" $ sudo subscription-manager repos --enable=rhel-${rhel_devtoolset_version}-server-extras-rpms $ sudo yum -y install docker && systemctl enable --now dockerFor more information on installing Docker please refer to the Docker Guide.
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Configure Docker to use Kata Containers by default with the following commands:
$ sudo mkdir -p /etc/systemd/system/docker.service.d/ $ cat <<EOF | sudo tee /etc/systemd/system/docker.service.d/kata-containers.conf [Service] ExecStart= ExecStart=/usr/bin/dockerd -D --add-runtime kata-runtime=/usr/bin/kata-runtime --default-runtime=kata-runtime EOF -
Restart the Docker systemd service with the following commands:
$ sudo systemctl daemon-reload $ sudo systemctl restart docker -
Run Kata Containers
You are now ready to run Kata Containers:
$ sudo docker run busybox uname -aThe previous command shows details of the kernel version running inside the container, which is different to the host kernel version.