[backport v1.0] pkg/sensors: reduce ratelimit map memory footprint #2584
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[ upstream commit ed824b3 ] Since the rate limit feature is only available for LARGE_BPF_PROG, let's remove the unnecessary map and the struct from the small BPF progs. Signed-off-by: Mahe Tardy <mahe.tardy@gmail.com>
[ upstream commit 38ab012 ] Signed-off-by: Mahe Tardy <mahe.tardy@gmail.com>
[ upstream commit 850410b ] This commit is very similar to 22510d9 For every ratelimit map loaded, we add ~10MB of kernel memory, and each kprobe added was adding a ratelimit map. We now only load that map if the user used the rateLimit field in a matchActions to reduce the memory footprint of this feature when unused. Signed-off-by: Mahe Tardy <mahe.tardy@gmail.com>
[ upstream commit 1eea47b ] Add a NoRateLimit test and a RateLimitTest. Signed-off-by: Kevin Sheldrake <kevin.sheldrake@isovalent.com>
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I'm sure it's all good. LMK when it's green. |
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[ upstream commit 9e8f005 ] For the base image to have nc.openbsd, see cilium/little-vm-helper-images@2af406c. Signed-off-by: Mahe Tardy <mahe.tardy@gmail.com>
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cc @kevsecurity it's green |
olsajiri
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Jul 19, 2024
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Backport of #2551 and #2583