feat: add systemd memory and OOM protection for SSM agent and Redis worker#248
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…rkers **Added:** - Added `aws_ssm_agent_oom_protect` and `aws_ssm_agent_memory_max` variables to enable SSM agent OOM protection and cap its memory - aws_ssm_agent/defaults/main.yml - Created systemd override template for SSM agent to adjust OOM score and set memory limit - aws_ssm_agent/templates/ssm-oom-protect.conf.j2 - Added tasks to create systemd override directory and deploy OOM protection config for SSM agent when enabled - aws_ssm_agent/tasks/linux.yml - Documented new variables and tasks in aws_ssm_agent/README.md - Added `redis_ares_worker_memory_high`, `redis_ares_worker_memory_max`, and `redis_ares_worker_tasks_max` variables to control resource limits for Ares worker processes - redis/defaults/main.yml - Applied corresponding systemd resource limits in ares@.service template - redis/templates/ares@.service.j2 - Documented new Redis worker resource limit variables in redis/README.md - Added step to install setuptools<81 in noPac venv to provide pkg_resources for legacy impacket compatibility - privesc_tools/tasks/linux.yml - Documented setuptools installation step for noPac in privesc_tools/README.md
**Changed:** - Updated comments in ssm-oom-protect.conf.j2 to clarify the behavior of OOMScoreAdjust and MemoryMax, explaining their independent roles in protecting the SSM agent when Ares workers exhaust memory
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Key Changes:
Added:
ssm-oom-protect.conf.j2) and related Ansible tasks to deploy it, including variables for enabling protection and setting memory limitsredis_ares_worker_memory_high,redis_ares_worker_memory_max,redis_ares_worker_tasks_max) with defaults and documentationpkg_resourcesfor impacketChanged:
pkg_resourcesis available by explicitly installingsetuptools<81before installing requirements