Set of scripts to get cgroup limits information within containers.
In a system with cgroup v2:
❯ cat get_cpus.sh | docker run --rm -i ubuntu sh
cgroup v2 detected.
No CPU limits set.
CPUs: 16
❯ cat get_cpus.sh | docker run --rm -i --cpus 2 ubuntu sh
cgroup v2 detected.
CPUs: 2
❯ cat get_cpus.sh | docker run --rm -i --cpus 1.5 ubuntu sh
cgroup v2 detected.
CPUs: 1
❯ cat get_cpus.sh | docker run --rm -i --cpus 0.5 ubuntu sh
cgroup v2 detected.
CPUs: 1Another system with cgroup v1:
❯ cat get_cpus.sh | docker run --rm -i ubuntu sh
cgroup v1 detected.
No CPU limits set.
CPUs: 8
❯ cat get_cpus.sh | docker run --rm -i --cpus 2 ubuntu sh
cgroup v1 detected.
CPUs: 2
❯ cat get_cpus.sh | docker run --rm -i --cpus 1.5 ubuntu sh
cgroup v1 detected.
CPUs: 1
❯ cat get_cpus.sh | docker run --rm -i --cpus 0.5 ubuntu sh
cgroup v1 detected.
CPUs: 1In a system with cgroup v2:
❯ cat get_memory.sh | docker run --rm -i ubuntu sh
cgroup v2 detected.
No memory limits set.
Memory: 15996 MB
❯ cat get_memory.sh | docker run --rm -i --memory 1g ubuntu sh
cgroup v2 detected.
Memory: 1024 MBAnother system with cgroup v1:
❯ cat get_memory.sh | docker run --rm -i ubuntu sh
cgroup v1 detected.
No memory limits set.
Memory: 32092 MB
❯ cat get_memory.sh | docker run --rm -i --memory 1g ubuntu sh
cgroup v1 detected.
Memory: 1024 MB