Tetragon oci hook setup #1842
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Tetragon oci hook setup #1842
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This is a preparation patch for subsequent patches. Signed-off-by: Kornilios Kourtis <kornilios@isovalent.com>
tetragon-oci-hook-setup is meant to be executed in an init container to setup run-time hooks on the host. Currently, it only supports the oci-hooks interface (as, for example, used by cri-o). NRI or other interfaces fall into future work. There are two commands: install and uninstall. Install will copy the hook binary to a directory (which should be a host mount) and add a configuration file to the hooks directory (also should be a host mount) to call the binary. Signed-off-by: Kornilios Kourtis <kornilios@isovalent.com>
Add tetragon-oci-hook and tetragon-oci-hook-setup in the tetragon image. This will enable us to use it as an init container to setup the OCI hooks. Signed-off-by: Kornilios Kourtis <kornilios@isovalent.com>
This patch adds the ociHookSetup helm value to configure the tetragon oci hook. For now, it is disabled by default. Signed-off-by: Kornilios Kourtis <kornilios@isovalent.com>
This is mostly for illustration purposes until we find something better. Signed-off-by: Kornilios Kourtis <kornilios@isovalent.com>
Add a developer demo. We will move this to docuemntation proper once the PR is merged, and the image is updated. Signed-off-by: Kornilios Kourtis <kornilios@isovalent.com>
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Add an init container for installing the tetragon OCI hook.
This, currently, only supports
cri-o, but it can be extended to support containerd's NRI: https://github.com/containerd/containerd/blob/main/docs/NRI.md.See for a developer demo: https://github.com/cilium/tetragon/blob/pr/kkourt/tetragon-oci-hook-setup/contrib/rthooks/tetragon-oci-hook/docs/demo.md.