I found something interesting in commit log :
Each minute, 3 new defunct process :
root@dos1:~# date && docker stats 4174e120f78b --no-stream
mercredi 25 mai 2022, 14:10:55 (UTC+0000)
CONTAINER ID NAME CPU % MEM USAGE / LIMIT MEM % NET I/O BLOCK I/O PIDS
4174e120f78b k8s_machine-sections-collector_checkmk-kube-agent-node-collector-machine-sections-5dnx7_checkmk-kube-agent_cdb934ee-b935-4c20-8821-599549afc15e_0 0.00% 24.51MiB / 200MiB 12.25% 0B / 0B 8.63MB / 0B 337
root@dos1:~# date && docker stats 4174e120f78b --no-stream
mercredi 25 mai 2022, 14:11:02 (UTC+0000)
CONTAINER ID NAME CPU % MEM USAGE / LIMIT MEM % NET I/O BLOCK I/O PIDS
4174e120f78b k8s_machine-sections-collector_checkmk-kube-agent-node-collector-machine-sections-5dnx7_checkmk-kube-agent_cdb934ee-b935-4c20-8821-599549afc15e_0 1.95% 24.91MiB / 200MiB 12.46% 0B / 0B 8.63MB / 0B 340
root@dos1:~# date && docker stats 4174e120f78b --no-stream
mercredi 25 mai 2022, 14:12:11 (UTC+0000)
CONTAINER ID NAME CPU % MEM USAGE / LIMIT MEM % NET I/O BLOCK I/O PIDS
4174e120f78b k8s_machine-sections-collector_checkmk-kube-agent-node-collector-machine-sections-5dnx7_checkmk-kube-agent_cdb934ee-b935-4c20-8821-599549afc15e_0 0.00% 24.61MiB / 200MiB 12.30% 0B / 0B 8.63MB / 0B 343