tetragon: Use namespace in sensor policy directory #2987
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Moving uprobes under tracing policy handler so we have generic sensors under one policy handler, which makes following changes simpler. Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Adding namespace to policy directory name as prefix separated by ':' character, which is not allowed for namespace or policy name. We can have multiple namespaced policies with the same name which would collide in bpffs directory, so we reflect the namespace in the policy directory name, like: /sys/fs/bpf/ns1:policy/.. /sys/fs/bpf/ns2:policy/.. The policy without namespace stays the same (has no prefix), like: /sys/fs/bpf/policy/.. Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Propagate the namespace value to generic sensors. Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Adding policy object directly to SensorBuilder function so we can pass the namespace value to sensor object. Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Adding sensor tests for namespace policy to verify we create proper policy directory and that they are properly removed. Signed-off-by: Jiri Olsa <jolsa@kernel.org>
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jrfastab
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Oct 14, 2024
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Make sure the bpffs hierarchy tree works properly with namespaced policies.